2011 Mercedes-benz G Class Owners Manual

front-passenger seat with BabySmart™ automatic child recognition

The different air bag systems work independently of each other. The protective functions of the system work in conjunction with each other. Not all air bags are deployed in an accident. G Warning Modifications to or work improperly conducted on restraint system components or their wiring, as well as tampering with interconnected electronic systems, can lead to the restraint systems no longer functioning as intended. Air bags or Emergency Tensioning Devices (ETDs), for example, could deploy inadvertently or fail to deploy in accidents

although the deceleration threshold for air bag deployment is exceeded. Therefore, never modify the restraint systems. Do not tamper with electronic components or their software.

i See "Children in the vehicle"

(Y page 49) for further information on infants and children traveling in the vehicle as well as on child restraint systems.

SRS (Supplemental Restraint System) Introduction SRS reduces the risk of occupants coming into contact with the vehicle's interior in the event of an accident. It can also reduce the effect of the forces to which occupants are subjected during an accident. SRS consists of: Rthe + SRS warning lamp Rair bags Rair bag control unit (with crash sensors) Rbelt tensioners Rbelt force limiters

SRS warning lamp The SRS functions are checked regularly when the SmartKey is in position 1 or 2 in the ignition lock. Therefore, malfunctions can be detected in good time. The + SRS warning lamp in the instrument cluster lights up: Rfor approximately four seconds when you

turn the SmartKey to position 1 in the ignition lock This indicates that the restraint systems are operational.

Rpermanently when you turn the SmartKey

to position 2 in the ignition lock This indicates that the + SRS warning lamp is operational.

G Warning The SRS self-check has detected a malfunction if the + SRS warning lamp: Rdoes not come on at all Rfails to go out approximately 4 seconds

after the engine was started

Rcomes on after the engine was started or

while driving

For your safety, Mercedes-Benz strongly recommends that you have the system checked as soon as possible at an authorized Mercedes-Benz Center. Otherwise the SRS may not be activated when it is needed in an accident, which could result in serious or fatal injury. The SRS might also deploy unexpectedly and unnecessarily which could also result in injury. In addition, improper work on the SRS creates a risk of rendering the SRS inoperative or causing unintended air bag deployment. Work on the SRS must therefore only be performed by qualified technicians. Contact an authorized Mercedes-Benz Center. If it is necessary to modify an air bag system to accommodate a person with disabilities, contact an authorized Mercedes-Benz Center for details. USA only: Call our Customer Assistance Center at 1-800-FOR-MERCedes (1-800-367-6372) for details.

Safety guidelines for seat belts, belt tensioners (ETDs) and air bags G Warning RDamaged seat belts or seat belts that have been subjected to stress in an accident must be replaced. Their anchoring points must also be checked. Only use seat belts installed or supplied by an authorized Mercedes-Benz Center.

RAir bags and pyrotechnic Emergency

Tensioning Devices (ETDs) contain perchlorate material, which may require special handling and regard for the environment. Check your national disposal

Occupant safety

35

guidelines. California residents, see www.dtsc.ca.gov/HazardousWaste/ Perchlorate/index.cfm.

RAir bags and ETDs are designed to function on a one-time-only basis. An air bag or ETD that has deployed must be replaced.

RDo not pass seat belts over sharp edges.

They could tear.

RDo not make any modification that could

change the effectiveness of the seat belts. RDo not bleach or dye seat belts as this may severely weaken them. In a crash they may not be able to provide adequate protection. RNo modifications of any kind may be made

to any components or wiring of the SRS. RDo not change or remove any component

or part of the SRS.

RDo not install additional trim material, seat

covers, badges, etc. over the steering wheel hub, front-passenger front air bag cover, outer sides of the seat backrests, door trim panels, or door frame trims.

RDo not install additional electrical/

electronic equipment on or near SRS components and wiring.

RKeep area between air bags and occupants

free of objects (e.g. packages, purses, umbrellas, etc.).

RDo not hang items such as coat hangers from the coat hooks or handles over the door. These items may be thrown around in the vehicle and cause head and other injuries when the window curtain air bag is deployed.

RAir bag system components will be hot after an air bag has inflated. Do not touch them.

RNever place your feet on the instrument panel, dashboard, or on the seat. Always keep both feet on the floor in front of the seat.

RImproper repair work on the SRS creates a

risk of rendering the SRS inoperative or causing unintended air bag deployment. Work on the SRS must therefore only be performed by qualified technicians.

36 Occupant safety

Contact an authorized Mercedes-Benz Center.

RFor your protection and the protection of others, when scrapping the air bag unit or ETD, our safety instructions must be followed. These instructions are available from any authorized Mercedes-Benz Center.

RGiven the considerable deployment speed, required inflation volume, and the material of the air bags, there is the possibility of abrasions or other, potentially more serious injuries resulting from air bag deployment.

If you sell your vehicle, Mercedes-Benz strongly recommends that you inform the subsequent owner that the vehicle is equipped with SRS. Also, refer them to the applicable section in the Operator's Manual.

Air bags Important safety notes G Warning! Air bags are designed to reduce the potential of injury and fatality in certain Rfrontal impacts (front air bags) Rside impacts (window curtain air bags) However, no system available today can completely eliminate injuries and fatalities. Deployment of the air bags temporarily releases a small amount of dust from the air bags. This dust, however, is neither harmful to your health, nor does it indicate a fire in the vehicle. The dust might cause some temporary breathing difficulty for people with asthma or other breathing trouble. To avoid this, you may wish to get out of the vehicle as soon as it is safe to do so. If you have any breathing difficulty but cannot get out of the vehicle after the air bag inflates, then get fresh air by opening a window or door.

G Warning! To reduce the risk of injury when the front air bags inflate, it is very important for the driver and front passenger to always be in a properly seated position and to wear their respective seat belt. For maximum protection in the event of a collision always be in normal seated position with your back against the seat backrest. Fasten your seat belt and make sure it is properly positioned on your body. Since the air bag inflates with considerable speed and force, a proper seating position and correct positioning of the hands on the steering wheel will help to keep you at a safe distance from the air bag. Occupants who are not wearing their seat belt, are not seated properly or are too close to the air bag can be seriously injured or killed by an air bag as it inflates with great force instantaneously: RSit with the seat belt properly fastened in a position that is as upright as possible with your back against the seat backrest. RMove the driver’s seat as far back as

possible, still permitting proper operation of vehicle controls. The distance from the center of the driver’s chest to the center of the air bag cover on the steering wheel must be at least 10 inches (25 cm) or more. You should be able to accomplish this by adjusting the seat and steering wheel. If you have any difficulties, please contact an authorized Mercedes-Benz Center.

RDo not lean your head or chest close to the

steering wheel or dashboard.

RKeep hands on the outside of the steering wheel rim. Placing hands and arms inside the rim can increase the risk and potential severity of hand/arm injury when the driver front air bag inflates.

RAdjust the front passenger seat as far as

possible rearward from the dashboard when the seat is occupied.

ROccupants, especially children, should

never place their bodies or lean their heads

in the area of the door where the window curtain air bag inflates. This could result in serious injuries or death should the window curtain air bag be deployed. Always sit as upright as possible, wear the seat belt properly and use an appropriately sized infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child.

RChildren 12 years old and under must never ride in the front seat, except in a Mercedes- Benz authorized BabySmart™ compatible child seat, which operates with the BabySmart™ air bag deactivation system installed in the vehicle to deactivate the front passenger front air bag when it is installed properly. Otherwise they will be struck by the air bag when it inflates in a crash. If this happens, serious or fatal injury will result.

Failure to follow these instructions can result in severe injuries to you or other occupants. If you sell your vehicle, it is important that you make the buyer aware of this safety information. Be sure to give the buyer this Operator’s Manual. G Warning! Accident research shows that the safest place for children in an automobile is in a rear seat. Should you choose to place a child 12 years old or under in the front passenger seat of your vehicle, you must properly use a BabySmartTM child restraint which will turn off the front passenger front air bag. To help avoid the possibility of injury, please follow these guidelines:

(1)

(2)

Always sit as upright as possible, wear the seat belt properly, and for children 12 years old and under, use an appropriately sized infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child. Always wear seat belts properly.

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37

The air bags are only deployed if the air bag control unit detects the need for deployment. Only in the event of such a situation will they provide their supplemental protection. The driver and passenger should always wear their seat belts. Otherwise, it is not possible for the air bags to provide their supplemental protection. In the event of other types of impacts and impacts below air bag deployment thresholds, the air bags will not deploy. The driver and passengers will then be protected to the extent possible by a properly fastened seat belt. A properly fastened seat belt is also needed to provide the best possible protection in a rollover. Air bags provide additional protection; they are not, however, a substitute for seat belts. All vehicle occupants must fasten their seat belts regardless of whether your vehicle is equipped with air bags or not. It is important for your safety and that of your passenger to have deployed air bags replaced and to have any malfunctioning air bags repaired. This will help to make sure the air bags continue to perform their protective function for the vehicle occupants in the event of a crash.

Front air bags G Warning Observe "Important safety notes" (Y page 36). The front air bags increase protection for the driver's and front-passenger's head, neck and chest.

38 Occupant safety

Driver's air bag : deploys in front of the steering wheel; front-passenger front air bag ; deploys in front of and above the glove box. They are deployed: Rin the event of certain frontal impacts Rif the system determines that air bag

deployment can offer additional protection to that provided by the seat belt

Rif the seat belt is fastened Rindependently of other air bags in the

vehicle

If the vehicle overturns, the front air bags are generally not deployed unless the system detects high vehicle deceleration in a longitudinal direction. Your vehicle has an adaptive, two-stage driver's air bag. In the event of a collision, the air bag control unit evaluates the vehicle deceleration. When the first deployment threshold is reached, the front air bag is filled with enough propellant gas to reduce the risk of injuries. The front air bag is fully deployed if a second deployment threshold is exceeded within a few milliseconds. The front air bags will not deploy in impacts with vehicle deceleration or acceleration rates which do not exceed the system’s preset deployment thresholds for vehicle deceleration or acceleration. You will then be protected by the fastened seat belt.

The front-passenger front air bag will only deploy if: Rthe front-passenger seat is occupied. Rthe 45 indicator lamp in the center

console is not lit (Y page 39).

Rthe impact exceeds a preset deployment

threshold.

The front-passenger air bag is automatically enabled and disabled. Both driver and passenger should always check whether the front-passenger air bag is enabled or disabled. The deployment of the driver's air bag does not mean that the front-passenger air bag will also deploy. If the system recognizes that the front-passenger seat is empty, the front- passenger air bag does not deploy even if the impact fulfills the criteria and the driver's air bag has deployed. If the front-passenger seat is recognized as occupied, the 45 indicator lamp lights up for approximately six seconds if Ryou turn the SmartKey to position 1 or 2 in

the ignition lock.

Rthe engine is running and then you switch

it off.

This indicates the operational readiness of the front-passenger air bag. Note that objects placed on the front- passenger seat may cause the system to recognize the seat as occupied. This can result in the deployment of the front- passenger air bag if the impact fulfills the specified criteria. If the 45 indicator lamp is lit up, the front-passenger air bag is disabled and will not deploy should the situation arise. If indicator lamp 45 is not lit up, the front-passenger air bag is enabled and will deploy should the situation arise. G Warning Your vehicle is equipped with air bag technology which disables the front-

passenger air bag if the system recognizes that the front-passenger seat is empty . If the front-passenger seat is occupied by an adult or young person and the 4/ indicator lamp is lit up, the front-passenger air bag is disabled. If the front-passenger seat is recognized as empty, the air bag control unit will not deploy the front-passenger air bag in the event of a collision. Ask your passenger to sit correctly on the front-passenger seat in an upright position until the 4/ indicator lamp goes out. If the 4/ indicator lamp does not go out, please consult an authorized Mercedes- Benz Center.

Window curtain air bags G Warning Observe "Important safety notes" (Y page 36). The window curtain air bags enhance the level of protection for the head (but not chest or arms) of the vehicle occupants on the side of the vehicle on which the impact occurs. The window curtain air bags are integrated into the side of the roof frame and deploy in the area extending from the front door (A- pillar) to the rear door (C-pillar).

Window curtain air bags : are deployed: Ron the side on which an impact occurs Rat the start of an accident with a high rate

of lateral vehicle deceleration or acceleration, e.g. in a side impact

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39

Rregardless of whether the front-passenger

seat is occupied

Rindependently of seat belt use Rif the vehicle overturns and the system determines that window curtain air bag deployment can offer additional protection to that provided by the seat belt

Rindependently of the front air bags Window curtain air bags : will not deploy in impacts with deceleration rates which do not exceed the system's preset deployment thresholds for vehicle deceleration or acceleration. You will then be protected by the fastened seat belt.

BabySmart™ air bag deactivation system How the air bag deactivation system functions Your vehicle is equipped with a BabySmart™ system. G Warning! According to accident statistics, children are safer when properly restrained in the rear seating positions than in the front seating position. Thus, we strongly recommend that children be placed in the rear seats whenever possible. Regardless of seating position, children 12 years old and under must be seated and properly secured in an appropriate infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child. The infant or child restraint must be properly secured with the vehicle’s seat belt, the seat belt and top tether strap, or lower anchors and top tether strap, fully in accordance with the child seat manufacturer’s instructions. Occupants, especially children, should always sit as upright as possible, wear the seat belt properly and use an appropriately sized infant restraint, toddler restraint, or booster seat

40 Occupant safety

recommended for the size and weight of the child. Children can be killed or seriously injured by an inflating air bag. Note the following important information when circumstances require you to place a child in the front passenger seat: RChildren 12 years old and under must never ride in the front seat, except in a Mercedes- Benz authorized BabySmart™ compatible child seat, which operates with the BabySmart™ system installed in the vehicle to deactivate the front passenger front air bag when it is installed properly. Otherwise they will be struck by the air bag when it inflates in a crash. If this happens, serious or fatal injury will result.

RA child in a rear-facing child restraint on the

front passenger seat will be seriously injured or even killed if the front passenger front air bag inflates in a collision which could occur under some circumstances, even with the air bag technology installed in your vehicle. The only means to completely eliminate this risk is to never place a child in a rear-facing child restraint in the front seat. We therefore strongly recommend that you always place a child in a rear-facing child restraint in a backseat.

RIf you must install a BabySmart™

compatible rear-facing child restraint on the front passenger seat because circumstances require you to do so, make sure the 4 / indicator lamp is illuminated, indicating that the front passenger front air bag is deactivated. Should the 4 / indicator lamp not illuminate or go out while the restraint is installed, please check installation. Periodically check the 4 / indicator lamp while driving to make sure the 4 / indicator lamp is illuminated. If the 4 / indicator lamp goes out or remains out, do not transport a child on the front passenger seat until the system has been repaired.

A child in a rear-facing child restraint on the front passenger seat will be seriously injured or even killed if the front passenger front air bag inflates.

RIf you have to place a child in a forward-

facing child restraint on the front passenger seat, move the seat as far back as possible, use the proper child restraint recommended for the age, size and weight of the child, and secure child restraint with the vehicle’s seat belt according to the child seat manufacturer’s instructions. G Warning! When using a BabySmart™ compatible child seat on the front passenger seat, the front passenger front air bag will not deploy only if the 4 / indicator lamp remains illuminated. Please be sure to check the 4 / indicator lamp every time you use a BabySmart™ compatible child seat on the front passenger seat. Should the 4 / indicator lamp go out while the restraint is installed, please check installation. If the 4 / indicator lamp remains out, do not use the BabySmart™ restraint to transport a child on the front passenger seat until the system has been repaired. G Warning The BabySmart™ air bag disabling system ONLY works with specially adapted child restraint systems. It does not work with child restraint systems that are not compatible with BabySmart™. Never place anything between the seat cushion and the child restraint system (e.g. a cushion), as this reduces the effectiveness of the BabySmart™ air bag deactivation system. The underside of the child restraint system must lie against the seat cushion of the front- passenger seat. In the event of an accident, an incorrectly installed child restraint system could injure the child instead of offering protection.

Observe the manufacturer's instructions when installing special child restraint systems.

Special child restraint systems which are compatible with BabySmart™ are necessary for disabling the front-passenger air bag. When the special BabySmart™-compatible child restraint system is installed correctly and is recognized by the sensor system in the front-passenger seat, the front-passenger air bag is disabled. In this case, 45
indicator lamp : lights up. If you have any questions regarding the special BabySmart™- compatible child restraint systems, consult an authorized Mercedes-Benz Center. If the SmartKey has been removed from the ignition lock or is in position 0, 45
indicator lamp : does not light up. The system does not disable: Rthe window curtain air bag Rthe Emergency Tensioning Device

System self-test The 45 indicator lamp lights up when the SmartKey is turned to position 1 or 2 in the ignition lock. The 45 indicator lamp goes out after approximately six seconds. If the 45 indicator lamp does not light up or is always lit, then the system is malfunctioning. Have the BabySmart™ system checked at an authorized Mercedes-

Occupant safety

41

Benz Center before transporting a child on the front-passenger seat. For further information, see "Problems with air bag deactivation system" (Y page 42). G Warning Do not leave any switched on notebooks, mobile phones, electronic tags (e.g. a ski pass) or similar electronic devices on the front-passenger seat. Signals emitted from such devices can interfere with the BabySmart™ air bag deactivation system. Such interference can lead to the 45
indicator lamp not lighting up during the self- test. If the + SRS warning lamp and the 4/ indicator lamp light up simultaneously in the instrument cluster, the system is malfunctioning. The front- passenger air bag could deploy without cause, or may fail to deploy in the event of an accident. Have the system checked as soon as possible at an authorized Mercedes-Benz Center.

42 Occupant safety

Problems with air bag deactivation system

Problem The 45
indicator lamp is on continuously.

Possible causes/consequences and M Solutions A special BabySmart™-compatible child restraint system is mounted on the front-passenger seat. The front-passenger air bag is therefore disabled. There is no BabySmart™-compatible child restraint system mounted on the front-passenger seat. The BabySmart™ system is malfunctioning. X Have the BabySmart™ system checked as soon as possible at

an authorized Mercedes-Benz Center.

G Warning If the 45 indicator lamp illuminates and remains illuminated when the weight of a typical adult or someone larger than a small individual has been detected on the passenger seat, do not allow any occupant to use the passenger seat until the system has been repaired.

Problem The 45
indicator lamp does not light up and/or stay on when a BabySmart™- compatible child restraint system is installed on the front- passenger seat.

Possible causes/consequences and M Solutions The BabySmart™ system is malfunctioning. X Make sure there is nothing between the seat cushion and the

child restraint system.

X Check that the child restraint system is installed correctly. X If the 45 indicator lamp does not light up, have the

BabySmart™ system checked as soon as possible at an authorized Mercedes-Benz Center. Do not transport a child on the front-passenger seat until the air bag deactivation system has been repaired.

NECK-PRO head restraints Important safety notes The NECK-PRO head restraints increase protection to the driver's and front passenger's head and neck. To this end, the NECK-PRO head restraints on the driver's and front-passenger seats are moved forwards and upwards in the event of a rear-end collision of a certain severity. This provides better head support.

G Warning Do not secure any objects (e.g. coat hangers) on the NECK-PRO head restraints. Otherwise, the NECK-PRO head restraints may not function properly, or in the event of a rear-end collision may not be able offer the level of protection they are designed to provide. G Warning Head restraint covers prevent the NECK-PRO head restraints from triggering correctly. Consequently, the NECK-PRO head restraints cannot provide the intended level of protection. Do not use head restraint covers.

If the NECK-PRO head restraints have been triggered in an accident, reset the NECK-PRO head restraints on the driver’s and front- passenger seat (Y page 43). Otherwise, the additional protection will not be available in the event of another rear-end collision. You can recognize when NECK-PRO head restraints have been triggered by the fact that they have moved forwards and can no longer be adjusted. G Warning! For your protection, drive only with properly positioned head restraints. Adjust the head restraint so that it is as close to the head as possible and the center of the head restraint supports the back of the head at eye level. This will reduce the potential for injury to the head and neck in the event of an accident or similar situation.

Resetting triggered NECK-PRO head restraints G Warning For safety reasons, have the NECK-PRO head restraints checked at an authorized Mercedes-Benz Center after a rear-end collision. G Warning When pushing back the NECK-PRO head restraint cushion, make sure your fingers do not become caught between the head restraint cushion and the cover. Failure to observe this could result in injuries.

i Resetting the NECK-PRO head restraints

requires a lot of strength. If you have difficulty resetting the NECK-PRO head restraints, have this work carried out at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.

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43

X Tilt the top of the NECK-PRO head restraint

cushion forwards in the direction of arrow :.

X Push the NECK-PRO head restraint cushion down in the direction of arrow ; as far as it will go.

X Firmly push the NECK-PRO head restraint cushion back in the direction of arrow = until the cushion engages.

X Repeat this procedure for the second

NECK-PRO head restraint.

Seat belts Important safety notes The use of seat belts and infant and child restraint systems is required by law in all 50
states, the District of Columbia, the U.S. territories and all Canadian provinces. Even where this is not the case, all vehicle occupants should have their seat belts fastened when the vehicle is in motion. i See "Children in the vehicle"

(Y page 49) for more information on infants and children traveling with you in the vehicle and restraints for infants and children. G Warning! Always fasten your seat belt before driving off. Always make sure all of your passengers are properly restrained. You and your passengers should always wear seat belts.

44 Occupant safety

Failure to wear and properly fasten and position your seat belt greatly increases your risk of injuries and their likely severity in an accident. If you are ever in an accident, your injuries can be considerably more severe without your seat belt properly buckled. Without your seat belt buckled, you are much more likely to hit the interior of the vehicle or be ejected from it. You can be seriously injured or killed. In the same crash, the possibility of injury or death is lessened if you are properly wearing your seat belt. The air bags can only protect as intended if the occupants are properly wearing their seat belts. G Warning Never ride in a moving vehicle with the seat backrest in an excessively reclined position as this can be dangerous. You could slide under the seat belt in a collision. If you slide under it, the seat belt would apply force at the abdomen or neck. That could cause serious or even fatal injuries. The seat backrest and seat belt provide the best restraint when the wearer is in a position that is as upright as possible and the seat belt is properly positioned on the body. G Warning Never let more people ride in the vehicle than there are seat belts available. Make sure everyone riding in the vehicle is correctly restrained with a separate seat belt. Never use a seat belt for more than one person at a time. G Warning! Damaged seat belts or seat belts that have been subjected to stress in an accident must be replaced. Also, the seat belt anchoring points must be checked. Only use seat belts which have been approved by Mercedes-Benz. Do not make any modifications to the seat belts. This can lead to unintended activation

of the ETDs or to their failure to activate when necessary. Do not bleach or dye seat belts as this may severely weaken them. In a crash they may not be able to provide adequate protection. Have all work carried out only by qualified technicians. Contact an authorized Mercedes-Benz Center.

Correct use of the seat belt G Warning CORRECT USE OF SEAT BELTS RSeat belts only work properly if they are

fastened correctly. Never wear seat belts in any other way than as described in this section, as that could result in serious injuries in the event of an accident.

RAll occupants should wear their seat belt at

all times, because seat belts help reduce the likelihood of and potential severity of injuries in accidents, even if the vehicle overturns. The restraint system installed is equipped with SRS (driver's air bag, front- passenger air bag, window curtain air bags), belt tensioners and belt force limiters. The system is designed to enhance the protection offered to occupants who are wearing their seat belts correctly, in certain frontal impacts (front air bags and belt tensioners) and side impacts (window curtain air bags and belt tensioners) which exceed preset deployment thresholds. RNever route the shoulder section of the

seat belt under your arm, across your neck or anywhere other than across your shoulder. In the event of a frontal impact, your body would be moved too far forward. This would increase the risk of head and neck injuries. The seat belt would then apply excessive force to the ribs or abdomen which could cause severe internal injuries to organs such as the liver or spleen.

Adjust the seat belt so that the upper part of the belt is as close as possible to the center of the shoulder. It should not touch the neck. Never route the belt under the shoulder. The height of the belt outlet can be altered to ensure correct usage.

RThe lap belt should be routed as low as possible across the hips, not across the abdomen. If the lap belt is routed across the abdomen, it could cause serious injuries in the event of an impact.

RNever route the seat belt over rigid or

fragile objects in or on your clothing, such as eyeglasses, pens, keys etc, as this could cause injuries.

RAlways ensure that the seat belt is routed correctly. This is particularly important if you are wearing loose clothing.

ROnly one person should use each seat belt

at any one time. Never use a seat belt to restrain more than one person or route the belt around additional objects.

RNever wear seat belts when they are twisted. Otherwise, in the event of an impact, the full width of the seat belt is unavailable to distribute the force of the impact. The twisted seat belt routed across your body could cause injuries.

RPregnant women should also wear a three-

point seat belt. The lap belt must always pass across your lap as low down as possible, i.e. across your hips; not across your abdomen.

RThe seat backrest should be set as close to

vertical as possible.

RCheck the seat belt during the journey in

order to make sure that it is correctly positioned.

RNever rest your feet on the dashboard or

the seat. Always keep both feet on the floor in front of the seat.

RWhen using a seat belt to secure an infant restraint system, child restraint system or a child on a booster seat, always follow the child seat manufacturer's instructions.

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45

G Warning Do not pass seat belts over sharp edges. They could tear. Do not allow the seat belt to get caught in the door or in the seat adjustment mechanism. This could damage the seat belt. Never attempt to make modifications to seat belts. This could impair the effectiveness of the seat belts.

Fastening seat belts Important safety notes G Warning According to accident statistics, children are safer when properly restrained on the rear seats than on the front-passenger seat. Thus, we strongly recommend that children be placed in the rear seat whenever possible. Regardless of seating position, children 12
years old and under must be seated and properly secured in an appropriately sized child restraint system or booster seat recommended for the size and weight of the child. For additional information, see the "Children in the vehicle" section. A child's risk of serious or fatal injuries is significantly increased if the child restraints are not properly secured in the vehicle and/ or the child is not properly secured in the child restraint. G Warning! Children 12 years old and under must never ride in the front seat, except in a Mercedes- Benz authorized BabySmart™ compatible child seat, which operates with the BabySmart™ system installed in the vehicle to deactivate the front passenger front air bag when it is installed properly. Otherwise they will be struck by the air bag when it inflates in a crash. If this happens, serious or fatal injury will result.

46 Occupant safety

Three-point seat belt, front

Three-point seat belt in the rear, center

X Adjust the seat and move the backrest to

an almost vertical position (Y page 76). X Pull the seat belt smoothly through belt

sash guide ?.

X Without twisting it, guide the shoulder

section of the seat belt across the middle of your shoulder and the lap section across your hips.

X Engage belt tongue ; in buckle :. X If necessary, adjust the seat belt to the

appropriate height (Y page 47).

X If necessary, pull upwards on the shoulder section of the seat belt to tighten the belt across your body.

For more information about releasing the seat belt with release button =, see "Releasing seat belts" (Y page 48).

: Bracket for seat belt tongues ; Belt buckle for fixed belt tongue = Release button for fixed belt tongue ? Fixed belt tongue A Belt buckle for moveable belt tongue B Release button for moveable belt tongue C Moveable belt tongue

X Pull both seat belt tongues ? and C from

bracket :.

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47

For more information about releasing the seat belt with release buttons B and =, see "Releasing seat belts" (Y page 48).

Special seat belt retractor All seat belts in the vehicle with the exception of the driver's are equipped with a special seat belt retractor, to which a child restraint system can be secured. For further information on special seat belt retractors, see (Y page 51).

Belt height adjustment You can adjust the belt height on the driver's and front-passenger seat, as well as on the outer rear seats.

X Pull the seat belt smoothly from the inertia

reel.

X Engage fixed seat belt tongue ? in

buckle ;.

Adjust the height so that the upper part of the seat belt is routed across the center of your shoulder. X To raise: slide the belt sash guide upwards.

The belt sash guide engages in various positions.

X To lower: pull belt sash guide release :

forwards and hold it.

X Slide the belt sash guide downwards. X Release belt sash guide release : and make sure that the belt sash guide has engaged.

X Pull movable seat belt tongue C and route

the seat belt across your body. Without twisting it, guide the shoulder section of the seat belt across the middle of your shoulder and the lap section across your hips.

X Engage movable seat belt tongue C in

buckle A.

X If necessary, pull upwards on the shoulder section of the seat belt to tighten the belt across your body.

48 Occupant safety

Releasing seat belts Notes ! Make sure that the seat belt is fully rolled up. Otherwise, the seat belt or belt tongue will be trapped in the door or in the seat mechanism. This could damage the door, the door trim panel and the seat belt. Damaged seat belts can no longer fulfill their protective function and must be replaced. Consult an authorized Mercedes- Benz Center.

Three-point seat belt, front X Press release button = and guide belt

tongue ; back towards belt sash guide ? (Y page 46).

Three-point seat belt in the rear, center X Press release button B on seat belt buckle

A(Y page 46).

X Open belt buckle ; with a screwdriver or

similar item (Y page 46).

X Let the seat belt roll up to the stop. X Guide both seat belt tongues ? and C into bracket : one on top of the other. (Y page 46). G Warning! To help prevent the possibility of injury, always store the rear center seat belt latch plates in the attachment when the rear center seat belt is not in use.

Belt warning for the driver and front passenger The 7 seat belt warning lamp in the instrument cluster is a reminder for all occupants to fasten their seat belts. Regardless of whether the driver and front- passenger seat belts have already been fastened, the 7 seat belt warning lamp will always illuminate for six seconds each time the engine is started. It then goes out if the driver and the front passenger have fastened their seat belts.

If the driver or front-passenger seat belt is not fastened when the engine is started, an additional warning tone will sound. This warning tone ceases after a maximum of six seconds or when the driver and front passenger have fastened their seat belts. If after six seconds, the driver or front passenger have not fastened their seat belts and the doors are closed: Rthe 7 seat belt warning lamp remains illuminated as long as either the driver's or front-passenger seat belt is not fastened. Rthe 7 seat belt warning lamp lights up

if the vehicle speed exceeds 15 mph (25 km/h). Additionally, a warning tone will sound with increasing intensity for a maximum of 60 seconds or until the driver's or front-passenger seat belt are fastened.

If the driver or front passenger unfasten their seat belt while the vehicle is in motion, the 7 seat belt warning lamp lights up and a warning tone sounds again. The warning tone ceases even if the driver or front passenger have still not fastened their seat belt after 60 seconds. The 7 seat belt warning lamp stops flashing but remains illuminated. After the vehicle comes to a standstill, the warning tone is reactivated and the 7 seat belt warning lamp flashes again if the vehicle speed again exceeds 15 mph (25 km/h) . The 7 seat belt warning lamp only goes out if: Rboth the driver and the front passenger

have fastened their seat belts.

or Rthe vehicle is stationary and a door is open. i For more information on the 7 seat

belt warning lamp, see "Indicator and warning lamps in the instrument cluster, seat belt" (Y page 184).

Emergency Tensioning Device, belt force limiters The front seat belts and the outer seat belts in the rear are equipped with ETDs and belt force limiters. ! If the front-passenger seat is not

occupied, do not engage the seat belt tongue in the buckle on the front- passenger seat. Otherwise, the Emergency Tensioning Device could be triggered in the event of an accident.

The ETDs tighten the seat belts in an accident, pulling them close against the body. The ETDs do not correct incorrect seat positions or incorrectly fastened seat belts. The ETDs do not pull vehicle occupants back towards the backrest. Belt force limiters, when triggered, help to reduce the peak force exerted by the seat belt on the vehicle occupant. The front belt force limiters are synchronized with the front air bags, which take on a part of the deceleration force. Thus, the force exerted on the occupant is distributed over a greater area. The ETDs can only be activated when: Rthe SmartKey is in position 1 or 2 in the

ignition lock.

Rthe restraint systems are operational; see

"SRS warning lamp" (Y page 34).

Rthe belt tongue is engaged in the buckle on each of the lap-shoulder belts in the front. Rthe front-passenger seat is occupied and the belt tongue is engaged in the buckle on the front-passenger side.

The ETDs are triggered depending on the type and severity of an accident: Rin the event of a head-on or rear-end collision if the vehicle decelerates or accelerates rapidly in a longitudinal

Children in the vehicle

49

direction during the initial stages of the impact

Rin certain situations if the vehicle overturns

and the system determines that it can provide additional protection

If the Emergency Tensioning Devices (ETDs) are triggered, you will hear a bang, and a small amount of smoke may also be released. Only in rare cases will the bang affect your hearing. The smoke that is released generally does not constitute a health hazard. The + SRS warning lamp lights up. G Warning Pyrotechnic ETDs that were activated must be replaced. For your safety, when disposing of the pyrotechnic ETDs always follow our safety instructions. These are available at any authorized Mercedes-Benz Center.

Children in the vehicle Important safety notes G Warning When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle. Do not leave children unattended in the vehicle, even if they are secured in a child restraint system, or with access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. The children could: Rinjure themselves on parts of the vehicle Rbe seriously or fatally injured through

excessive exposure to extreme heat or cold Rinjure themselves or cause an accident with

vehicle equipment that can be operated even if the SmartKey is removed from the ignition lock or removed from the vehicle, such as seat adjustment, steering wheel adjustment, or the memory function

50

Children in the vehicle

If children open a door, they could injure other persons or get out of the vehicle and injure themselves or be injured by following traffic. Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very hot, and the child could be burned on these parts. G Warning! Do not carry heavy or hard objects in the passenger compartment or trunk unless they are firmly secured in place. Unsecured or improperly positioned cargo increases a child's risk of injury in the event of Rstrong braking maneuvers Rsudden changes of direction Ran accident

If an infant or child is traveling in the vehicle: X Secure the child using an infant or child

restraint system appropriate to the age and weight of the child

X Make sure that the infant or child is

properly secured at all times while the vehicle is in motion.

Child restraint systems Important safety notes G Warning Observe "Important safety notes" (Y page 49). We recommend all infants and children be properly restrained using the child restraint systems at all times while the vehicle is in motion. Always use a child restraint system that is compatible with BabySmart™ on the front- passenger seat. The use of infant or child restraints is required by law in all 50 states, the District of

Columbia, the U.S. territories and all Canadian provinces. Infants and children should always be seated in an infant or child seat restraint system appropriate for the size and weight of the child. They must be properly secured in accordance with the manufacturer's installation instructions for the infant or child seat restraint system. All infant and child seat restraint systems must comply with the US Federal Motor Vehicle Safety Standards 213
and 225 and Canadian Motor Vehicle Safety Standards 213 and 210.2. A statement by the child restraint manufacturer of compliance with these standards can be found on the instruction label on the restraint system. You will also find the statement in the instruction manual provided with the child restraint system. When using an infant restraint system, child restraint system or booster seat, make sure to carefully read and follow all manufacturer's instructions for installation and use. Please read the warning labels affixed to the interior of the vehicle or to the infant restraint or child restraint system. G Warning! According to accident statistics, children are safer when properly restrained in the rear seating positions than in the front seating position. Thus, we strongly recommend that children be placed in the rear seats whenever possible. Regardless of seating position, children 12 years old and under must be seated and properly secured in an appropriate infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child. The infant or child restraint must be properly secured with the vehicle’s seat belt, the seat belt and top tether strap, or lower anchors and top tether strap, fully in accordance with the child seat manufacturer’s instructions. Occupants, especially children, should always sit as upright as possible, wear the seat belt properly and use an appropriately sized infant

restraint, toddler restraint, or booster seat recommended for the size and weight of the child. Children can be killed or seriously injured by an inflating air bag. Note the following important information when circumstances require you to place a child in the front passenger seat: RChildren 12 years old and under must never ride in the front seat, except in a Mercedes- Benz authorized BabySmart™ compatible child seat, which operates with the BabySmart™ system installed in the vehicle to deactivate the front passenger front air bag when it is installed properly. Otherwise they will be struck by the air bag when it inflates in a crash. If this happens, serious or fatal injury will result.

RA child in a rear-facing child restraint on the

front passenger seat will be seriously injured or even killed if the front passenger front air bag inflates in a collision which could occur under some circumstances, even with the air bag technology installed in your vehicle. The only means to completely eliminate this risk is to never place a child in a rear-facing child restraint in the front seat. We therefore strongly recommend that you always place a child in a rear-facing child restraint in a backseat.

RIf you must install a rear-facing child restraint on the front passenger seat because circumstances require you to do so, make sure the 4 / indicator lamp is illuminated, indicating that the front passenger front air bag is deactivated. Should the 4 / indicator lamp not illuminate or go out while the restraint is installed, please check installation. Periodically check the 4 / indicator lamp while driving to make sure the 4 / indicator lamp is illuminated. If the 4 / indicator lamp goes out or remains out, do not transport a child on the front passenger seat until the system has been repaired.

Children in the vehicle

51

A child in a rear-facing child restraint on the front passenger seat will be seriously injured or even killed if the front passenger front air bag inflates.

RIf you have to place a child in a forward-

facing child restraint on the front passenger seat, move the seat as far back as possible, use the proper child restraint recommended for the age, size and weight of the child, and secure child restraint with the vehicle’s seat belt according to the child seat manufacturer’s instructions. G Warning Infants and small children should never share a seat belt with another occupant. During an accident, they could be crushed between the occupant and seat belt. A child's risk of serious or fatal injuries is significantly increased if the child restraints are not properly secured in the vehicle and/ or the child is not properly secured in the child restraint. Children too big for a toddler restraint must ride in seats using regular seat belts. Position the shoulder belt across the chest and shoulder, not face or neck. A booster seat may be necessary to achieve proper seat belt positioning for children over 41 lb (18 kg) until they reach a height where a lap/shoulder belt fits properly without a booster. When the child restraint is not in use, remove it from the vehicle or secure it with the seat belt to prevent the child restraint from becoming a projectile in the event of an accident.

Special seat belt retractor G Warning Observe "Important safety notes" (Y page 49). All seat belts except the driver's seat belt are equipped with a special seat belt retractor. When enabled, the special seat belt retractor function ensures that the seat belt does not

52

Children in the vehicle

slacken once the child restraint system is secured. Installing a child restraint system: X Always comply with the manufacturer's

installation instructions.

X Pull the seat belt smoothly from the inertia

reel.

X Engage the seat belt tongue in the belt

buckle.

Activating the special seat belt retractor: X Pull the seat belt out fully and let the inertia

reel retract it again. While the seat belt is retracting, you should hear a ratcheting sound. The special seat belt retractor function is enabled.

X Push down on the child restraint system to

take up any slack.

Removing a child restraint system/ deactivating the special seat belt retractor: X Always comply with the manufacturer's

installation instructions.

X Press the seat belt release button and guide the belt tongue to the belt outlet. The special seat belt retractor function is deactivated. G Warning Never release the seat belt buckle while the vehicle is in motion, since the special seat belt retractor will be deactivated.

ISOFIX child seat securing system for the rear seats G Warning Observe "Important safety notes" (Y page 49). G Warning Children that are too large for a child restraint must travel in seats using normal seat belts. Position shoulder belt across the chest and shoulder, not face or neck.

In order to attain the correct seating position for children weighing over 41 lb (18 kg), it may be necessary to use a booster seat until they reach a height where a normal lap/shoulder seat belt lies properly across their bodies without the need for a booster seat. Install the child restraint system according to the manufacturer's instructions. The child restraint system must be installed firmly on both brackets. An incorrectly installed child restraint system can come loose in the event of an accident, causing the child to be severely or fatally injured. Child restraint systems/child restraint retaining brackets that are damaged or have suffered damage due to an impact must be replaced.

ISOFIX is a standardized securing system for specially designed child restraint systems on the rear seats. Securing rings for two ISOFIX child restraint systems are installed on the left and right of the rear seats. Non LATCH-type (ISOFIX) child seats must be secured using the vehicle's seat belts. Follow the manufacturer's instructions for installation of child restraint systems.

: Securing rings X Install the ISOFIX child restraint system.

Comply with the manufacturer's

instructions when installing the ISOFIX child restraint system.

X When an ISOFIX child seat securing system is installed, make sure that the center seat belt in the rear compartment is fully functional and can move freely.

Top Tether G Warning Observe "Important safety notes" (Y page 49). G Warning Always lock the rear seat backrests in their upright position when the rear seats are occupied by passengers. Lock the rear seat backrests in their upright position before installing the Top Tether straps or when the cargo compartment is not in use. Make sure that rear seat backrests are secured properly by pushing and pulling on the seat backrests. If the seat backrest is not locked properly, the seat backrest could fold forward. The child restraint system is no longer supported properly or held in position and can no longer fulfill its function. This could cause serious or even fatal injuries.

Top Tether provides an additional connection between the child restraint system secured with ISOFIX and the rear seat. It helps reduce the risk of injury even further. The Top Tether anchorage points are located on the trunk floor behind the rear bench seat.

Children in the vehicle

53

X Remove the cargo compartment cover

(Y page 196).

X Move the head restraint upwards. X Install the ISOFIX child restraint system

with Top Tether. Comply with the manufacturer's installation instructions when doing so.

X Route Top Tether belt = under the head restraint between the two head restraint bars.

X Attach Top Tether hook : to Top Tether

anchorage ; on the trunk floor.

X Make sure that Top Tether belt = is not

twisted.

X Tension Top Tether belt =. Comply with

the manufacturer's installation instructions when doing so.

X Move the head restraint back down again

slightly if necessary (Y page 80). Make sure that you do not interfere with the correct routing of Top Tether belt =. G Warning! Only use the described top tether anchorage rings for the respective child seat. Other lashing eyelets could tear in case of an accident. Make sure the top tether straps are not crossed or twisted and the hook is attached and closed properly.

G Warning When children ride on the vehicle's rear seats, activate the override switch. Otherwise, the children could be injured, e.g. by trapping themselves in the rear side window.

X To deactivate: slide override switch : to

the right. The . symbol becomes visible. Operation is only possible using the switches in the driver's door.

X To release: slide override switch : to the

left. The . symbol is covered. Operation using the switches in the rear compartment is possible again.

Panic alarm

54

Panic alarm

Child-proof locks Child-proof locks for the rear doors G Warning Observe "Important safety notes" (Y page 49). G Warning Children could open a rear door from inside the vehicle. This could result in serious injuries or an accident. Therefore, when children ride in the rear always secure the rear doors with the child-proof locks.

You secure each door individually with the child-proof locks on the rear doors. A door secured with a child-proof lock cannot be opened from inside the vehicle. When the vehicle is unlocked, the door can be opened from the outside.

X To activate: press the child-proof lock lever down in the direction of arrow ;. X Make sure that the child-proof locks are

working properly.

X To deactivate: press the child-proof lock

lever up in the direction of arrow :.

Override feature for the rear side windows G Warning Observe "Important safety notes" (Y page 49).

X To activate: press ! button : for at

least one second. An alarm sounds and the indicator lamp flashes.

X To deactivate: press ! button : again. or X Insert the key into the ignition lock. i USA only:

This device complies with part 15 of the FCC regulations. Operation is subject to the following two conditions: 1. This device may not cause interference, and 2. This device must withstand any interference received, including interference that may cause undesired operation. Any unauthorized modification to this device could void the user's authority to operate the equipment.

i Canada only:

This device complies with RSS-210
regulations of Industry Canada. Operation is subject to the following two conditions: 1. This device may not cause interference, and 2. This device must withstand any interference received, including interference that may cause undesired operation of the device. Any unauthorized modification to this device could void the user's authority to operate the equipment.

Driving safety systems Driving safety systems overview In this section, you will find information about the following driving safety systems: RABS (Anti-lock Braking System) RBAS (Brake Assist System)

Driving safety systems

55

RESP® (Electronic Stability Program) REBD (Electronic Brake force Distribution)

Important safety notes G Warning The following factors increase the risk of accidents: RExcessive speed, especially in turns RWet and slippery road surfaces RFollowing another vehicle too closely The driving safety systems described in this section cannot reduce these risks or prevent the natural laws of physics from acting on the vehicle. They cannot increase braking or steering efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded. Only a safe, attentive, and skillful driver can prevent accidents. The capabilities of a vehicle equipped with the driving safety systems described in this section must never be exploited in a reckless or dangerous manner which could jeopardize the user's safety or the safety of others. Always adjust your driving style to the prevailing road and weather conditions and keep a safe distance to other road users and objects on the street. If a driving system malfunctions, other driving safety systems may also switch off. Observe indicator and warning lamps that may come on as well as messages in the multifunction display that may appear. G Warning! The ABS, the BAS, and the ESP® switch off when the differential locks are switched on. When the ABS, the BAS, and the ESP® are switched off Rwheels may lock during hard braking Rsteering capabilities are reduced

56 Driving safety systems

Rbraking distance is increased Rvehicle stability in standard driving

maneuvers is increased

Make sure the differential locks are switched on at all times except when driving off-road for example. Switch on the differential locks immediately when returning from off-road driving.

i In wintry driving conditions, always use winter tires (M+S tires) and if necessary, snow chains. Only in this way will the driving safety systems described in this section work as effectively as possible.

ABS (Anti-lock Braking System) Important safety notes G Warning Observe "Important safety notes" (Y page 55). G Warning Do not pump the brake pedal. Use firm, steady brake pedal pressure instead. Pumping the brake pedal defeats the purpose of the ABS and significantly reduces braking effectiveness.

ABS regulates brake pressure in such a way that the wheels do not lock when you brake. This allows you to continue steering the vehicle when braking. ABS operates above a speed of about 5 mph(8 km/h) regardless of road-surface conditions, provided the differential locks are not active. ABS works on slippery surfaces, even when you only brake gently. The ! warning lamp in the instrument cluster lights up when the ignition is switched on. It goes out when the engine is running.

Braking If ABS intervenes when braking, you will feel a pulsing in the brake pedal. X If ABS intervenes: continue to depress the

brake pedal with force until the braking situation is over.

X To make a full brake application:

depress the brake pedal with full force.

The pulsating brake pedal can be an indication of hazardous road conditions and functions as a reminder to take extra care while driving. G Warning If the ABS malfunctions, other driving systems such as the BAS or the ESP® are also switched off. Observe indicator and warning lamps that may come on as well as messages in the multifunction display that may appear. If the ABS malfunctions, the wheels may lock during hard braking, reducing the steering capability and extending the braking distance.

Off-road ABS If the LOW shift range (Y page 126) is selected on the transfer case, an ABS system specifically suited to off-road terrain is activated. At speeds below 37 mph(60 km/h), the front wheels lock periodically when braking. The digging-in effect achieved in the process reduces the stopping distance on off-road terrain. This limits steering capability.

BAS (Brake Assist) G Warning Observe "Important safety notes" (Y page 55). BAS operates in emergency braking situations. If you depress the brake pedal quickly, BAS automatically boosts the braking force, thus shortening the stopping distance.

X Keep the brake pedal firmly depressed until

the emergency braking situation is over. ABS prevents the wheels from locking. The brakes will function as usual once you release the brake pedal. BAS is deactivated. G Warning If the BAS malfunctions, the brake system still functions, but without the additional brake boost available that the BAS would normally provide in an emergency braking maneuver. Therefore, the braking distance may increase.

ESP® (Electronic Stability Program) Important safety notes G Warning Observe "Important safety notes" (Y page 55).

ESP® monitors driving stability and traction. Traction is the power transmission between the tires and the road surface. If ESP® detects that the vehicle is deviating from the direction desired by the driver, one or more wheels are braked to stabilize the vehicle. If necessary, the engine output is also modified to keep the vehicle on the desired course within physical limits. ESP® assists the driver when pulling away on wet or slippery roads. ESP® can also stabilize the vehicle during braking. If ESP® intervenes, the ÷ warning lamp flashes in the instrument cluster.

Driving safety systems

57

G Warning Under no circumstances should you deactivate ESP® when the ÷ ESP® warning lamp in the instrument cluster flashes. Proceed as follows: Rwhen driving off, apply as little throttle as

possible.

Rwhile driving, ease up on the accelerator

pedal.

Radapt your speed to suit the prevailing road

and weather conditions.

failure to observe these guidelines could cause the vehicle to skid. ESP® cannot prevent accidents resulting from excessive speed.

! Switch the ignition off when:

Rthe parking brake is being tested using a

dynamometer

Rthe vehicle is being towed with the front/

rear axle raised

Application of the brakes by ESP® may otherwise destroy the brake system.

! Only operate the vehicle for a maximum

of ten seconds on a brake test dynamometer. Switch off the ignition. Application of the brakes by ESP® may otherwise destroy the brake system.

! Function or performance tests may only be performed on a 2-axle dynamometer. If you wish to operate the vehicle on such a dynamometer, please consult an authorized Mercedes-Benz Center beforehand. You could otherwise damage the drive train or the brake system.

i Only use wheels with the recommended

tire sizes. Only then will ESP® function properly.

i If differential locks are switched on, ABS,

BAS and ESP® switch themselves off automatically.

58 Driving safety systems

4ETS (Electronic Traction System) G Warning Observe "Important safety notes" (Y page 55).

Traction control is part of ESP®. Traction control brakes the drive wheels individually if they spin. This enables you to pull away and accelerate on slippery surfaces, for example if the road surface is slippery on one side. In addition, more drive torque is transferred to the wheel or wheels with traction. Traction control remains active if you deactivate ESP®. Traction control is no longer active at speeds above approximately 37 mph (60 km/h).

Activating/deactivating ESP® G Warning! The ESP® should not be switched off during normal driving other than in the circumstances described below. Disabling the system will reduce vehicle stability in driving maneuvers.

ESP® is activated automatically when the engine is started. It may be best to deactivate ESP® in the following situations: Rwhen using snow chains Rin deep snow Ron sand or gravel G Warning Switch on ESP® immediately if one of the previously stated conditions is longer met. Otherwise, ESP® cannot stabilize the vehicle if it begins to lurch or when a wheel spins.

When you deactivate ESP®: RESP® no longer improves driving stability. Rthe engine's torque is no longer limited and the drive wheels can spin. The spinning of

the wheels results in a cutting action, which provides better grip.

Rtraction control is still activated. RESP® still provides support when you

brake.

Rand drive over 37 mph (60 km/h), ESP®

intervenes when the grip limit of a wheel is reached, even if it is deactivated.

If ESP® is deactivated and one or more wheels start to spin, the ÷ warning lamp in the instrument cluster flashes. In such situations, ESP® will not stabilize the vehicle. If you have deactivated ESP®, it is automatically reactivated if you exceed a speed of 37 mph (60 km/h) or a certain lateral acceleration.

X To deactivate: press button : until the

å warning lamp lights up in the instrument cluster. G Warning When the å ESP® OFF warning lamp is lit, ESP® is deactivated. If the ÷ ESP® warning lamp and the å ESP® OFF warning lamp remain lit, ESP® is not available due to a malfunction. When ESP® is deactivated or not operational, vehicle stability in standard driving maneuvers is reduced. Adapt your speed and driving to the prevailing road conditions and to the non-operating status of the ESP®.

! Avoid spinning a drive wheel for an

extended period with ESP® switched off. This could cause serious damage to the drive train.

X To activate: press button : until the

å warning lamp goes out in the instrument cluster.

EBD (Electronic Brake force Distribution) G Warning Observe "Important safety notes" (Y page 55). EBD monitors and controls the brake pressure on the rear wheels to improve driving stability while braking. G Warning! If the EBD malfunctions, the brake system will still function with full brake boost. However, the rear wheels could lock up during emergency braking situations, for example. You could lose control of the vehicle and cause an accident. Adapt your driving style to the changed driving characteristics.

Anti-theft systems Immobilizer The immobilizer prevents your vehicle from being started without the correct key. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be started by anyone with a valid SmartKey that is left inside the vehicle. X To activate: remove the SmartKey from

the ignition lock.

X To deactivate: switch on the ignition. i The immobilizer is always deactivated

when you start the engine.

Anti-theft systems

59

In the event that the engine cannot be started when the starter battery is fully charged, the immobilizer may be faulty. Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in USA) or 1-800-387-0100 (in Canada).

ATA (Anti-Theft Alarm system) A visual and audible alarm is triggered if the alarm system is armed and you open: Ra door Ra door using the mechanical key Rthe rear door Rthe hood The alarm is also triggered if: Rthe position of the vehicle is changed. Ra window is smashed. The alarm is not switched off, even if you close the open door that has triggered it, for example. i If the alarm stays on for more than 30

seconds, the emergency call system mbrace (USA only) or TELEAID (Canada only) initiates a call to the Customer Assistance Center automatically. The emergency call system initiates the call provided that: Ryou have subscribed to the mbrace/

TELEAID service.

Rthe mbrace/TELEAID service has been

activated properly.

Rthe required mobile phone, power supply

and GPS are available.

60

Anti-theft systems

X To arm: lock the vehicle with the

SmartKey. Indicator lamp : flashes. The alarm system is armed after approximately 15
seconds.

X To deactivate: unlock the vehicle with the

SmartKey.

To prevent a false alarm, deactivate the tow- away alarm manually if your vehicle: Ris being transported Ris being loaded onto a ferry or car

transporter, for example

Ris parked on a movable surface, e.g. in a

split-level garage