2009 Mercedes-benz M Class Owners Manual

winter performance. Make sure the tires you use show M+S and the mountain/ snowflake.marking on the tire sidewall. These tires meet specific snow traction performance requirements of the Rubber Manufacturers Association (RMA) and the Rubber Association of Canada (RAC) and have been designed specifically for use in snow conditions.

An electronic speed limiter prevents your vehicle from exceeding a speed of: RAll models except ML 63 AMG:

130 mph (210 km/h)

RML 63 AMG:

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Tires and wheels

155 mph (250 km/h)

RML 63 AMG with increased top speed:

171 mph (275 km/h)

The factory equipped tires on your vehicle may have a tire speed rating above the maximum speed permitted by the electronic speed limiter. Make sure your tires have the required tire speed rating as specified for your vehicle in the “Technical data” section (Y page 401), for example when purchasing new tires. If you are uncertain about the correct reading of the information given on a tire’s sidewall, any authorized Mercedes-Benz Center will be glad to assist you.

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RLight Load: designates a light load tire. RC, D, E: designates load range associated with the maximum load a tire can carry at a specified pressure.

DOT, Tire Identification Number (TIN) U.S. tire regulations require each new tire manufacturer or tire retreader to mold a TIN into or onto a sidewall of each tire produced. The TIN is a unique identifier which facilitates efforts by tire manufactures to notify purchasers in recall situations or other safety matters concerning tires and gives purchasers the means to easily identify such tires. The TIN is comprised of “Manufacturer’s identification mark”, “Tire size”, “Tire type code” and “Date of manufacture”.

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Tires and wheels Load identification

1 Load identification

i For illustration purposes only. Actual data

on tires are specific to each vehicle and may vary from data shown in above illustration.

In addition to tire load rating, special load identification 1 may be molded into the tire sidewall following the letter designating the tire speed rating 6 (Y page 259). RNo specification given: absence of any text

(like in above example) indicates a standard load (SL) tire.

RXL or Extra Load: designates an extra load

(or reinforced) tire.

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1 DOT 2 Manufacturer’s identification mark 3 Tire size 4 Tire type code (at the option of the tire

manufacturer)

5 Date of manufacture

i For illustration purposes only. Actual data

on tires are specific to each vehicle and may vary from data shown in above illustration.

DOT (Department of Transportation) Tire branding symbol 1 denotes that the tire meets requirements of the U.S. Department of Transportation.

Manufacturer’s identification mark Manufacturer’s identification mark 2
denotes the tire manufacturer. New tires have a mark with two symbols. Retreaded tires have a mark with four symbols. For more information on retreaded tires, see (Y page 245).

Tire size Code 3 indicates the tire size.

Tire type code Tire type code 4 may, at the option of the manufacturer, be used as a descriptive code for identifying significant characteristics of the tire.

Date of manufacture The date of manufacture 5 identifies the week and year of manufacture. The first two figures identify the week, starting with “01” to represent the first full week of the calendar year. The second two figures represent the year. For example, “3202” represents the 32nd week of 2002.

Maximum tire load G Warning! Do not overload the tires by exceeding the specified load limit as indicated on the Tire and Loading Information placard on the driver’s door B-pillar. Overloading the tires can overheat them, possibly causing a blowout. Overloading the tires can also result in handling or steering problems, or brake failure.

1 Maximum tire load rating

i For illustration purposes only. Actual data

on tires are specific to each vehicle and may vary from data shown in above illustration.

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The maximum tire load is the maximum weight the tires are designed to support. For more information on tire load rating, see (Y page 260). For information on calculating total and cargo load capacities, see (Y page 249).

Maximum tire inflation pressure G Warning! Never exceed the maximum tire inflation pressure. Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated. Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes etc.

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Tires and wheels

1 Maximum permissible tire inflation

pressure

i For illustration purposes only. Actual data

on tires are specific to each vehicle and may vary from data shown in above illustration.

This is the maximum permissible tire inflation pressure for the tire. Always follow the recommended tire inflation pressure (Y page 251) for proper tire inflation.

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Uniform Tire Quality Grading Standards The Uniform Tire Quality Grading is a U.S. Government requirement designed to give drivers consistent and reliable information regarding tire performance. Tire manufacturers are required to grade tires based on three performance factors: treadwear, traction, and temperature resistance. Although not a Government of Canada requirement, all tires made for sale in North America have these grades branded on the sidewall.

1 Treadwear 2 Traction 3 Temperature resistance

i For illustration purposes only. Actual data

on tires are specific to each vehicle and may vary from data shown in above illustration.

Quality grades can be found, where applicable, on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear

Temperature

Traction

200

AA

All passenger car tires must conform to federal safety requirements in addition to these grades.

Treadwear The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified U.S. Government test course. For example, a tire graded 150 would wear one and one-half (1 1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits,

service practices and differences in road characteristics and climate.

Traction G Warning! The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics. The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. G Warning! If ice has formed on the road, tire traction will be substantially reduced. Under such weather conditions, drive, steer and brake with extreme caution. The safe speed on a wet, snow covered or icy road is always lower than on a dry road. You should pay particular attention to the condition of the road whenever the outside temperature is close to the freezing point.

Mercedes-Benz recommends winter tires (Y page 269) with a minimum tread depth of approximately 1/6 in (4 mm) on all four wheels for the winter season to ensure normal balanced handling characteristics. On packed snow, they can reduce your stopping distance compared to summer tires. Stopping distance, however, is still considerably greater than when the road is not covered with snow or ice. Exercise appropriate caution. ! Avoid spinning of a drive wheel. This may

cause serious damage to the drivetrain which is not covered by the Mercedes-Benz Limited Warranty.

Temperature G Warning! The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause excessive heat build-up and possible tire failure. The temperature grades are A (the highest), B, and C, representing the tire’s resistance to

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Tires and wheels

the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.

Tire ply material

1 Plies in sidewall 2 Plies under tread

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Tires and wheels i For illustration purposes only. Actual data

on tires are specific to each vehicle and may vary from data shown in above illustration.

This marking tells you about the type of cord and number of plies in the sidewall and under the tread.

Tire and loading terminology

Accessory weight The combined weight (in excess of those standard items which may be replaced) of automatic transmission, power steering, power brakes, power windows, power seats, radio, and heater, to the extent that these items are available as factory-installed equipment (whether installed or not).

Air pressure The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in pounds per square inch (psi), or kilopascal (kPa) or bar.

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Aspect ratio Dimensional relationship between tire section height and section width expressed in percentage.

DOT (Department of Transportation) A tire branding symbol which denotes the tire meets requirements of the U.S. Department of Transportation.

Bar Another metric unit for air pressure. There are 14.5038 pounds per square inch (psi) to 1 bar; there are 100 kilopascals (kPa) to 1 bar.

Bead The tire bead contains steel wires wrapped by steel cords that hold the tire onto the rim.

Cold tire inflation pressure Tire inflation pressure when your vehicle has been sitting for at least 3 hours or driven no more than 1 mile (1.6 km).

Curb weight The weight of a motor vehicle with standard equipment including the maximum capacity of fuel, oil, and coolant, and, if so equipped, air conditioning and additional optional equipment, but without passengers and cargo.

GAWR (Gross Axle Weight Rating) The GAWR is the maximum permissible axle weight. The gross vehicle weight on each axle must never exceed the GAWR for the front and rear axle indicated on the certification label located on the driver’s door B-pillar.

GTW (Gross Trailer Weight) The GTW is the weight of the trailer plus the weight of all cargo, equipment, luggage etc. loaded on the trailer.

GVW (Gross Vehicle Weight) The GVW comprises the weight of the vehicle including fuel, tools, spare wheel, installed accessories, passengers and cargo and, if applicable, trailer tongue load. The GVW must never exceed the GVWR indicated on the certification label located on the driver’s door B-pillar.

GVWR (Gross Vehicle Weight Rating) This is the maximum permissible vehicle weight of the fully loaded vehicle (weight of the vehicle including all options, passengers, fuel, and cargo and, if applicable, trailer tongue load). It is indicated on certification label located on the driver’s door B-pillar.

Kilopascal (kPa) The metric unit for air pressure. There are 6.9 kPa to 1 psi; another metric unit for air pressure is bar. There are 100 kilopascals (kPa) to 1 bar.

Maximum load rating The maximum load in kilograms and pounds that can be carried by the tire.

Maximum loaded vehicle weight The sum of curb weight, accessory weight, total load limit, and production options weight.

Maximum permissible tire inflation pressure This number is the greatest amount of air pressure that should ever be put in the tire.

Normal occupant weight The number of occupants the vehicle is designed to seat, multiplied by 68 kilograms (150 lb).

Occupant distribution The distribution of occupants in a vehicle at their designated seating positions.

Production options weight The combined weight of those installed regular production options weighing over 5 lbs (2.3 kilograms) in excess of those standard items which they replace, not previously considered in curb weight or accessory weight, including heavy duty brakes, ride levelers, roof rack, heavy duty battery, and special trim.

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Tires and wheels

PSI (Pounds per square inch) A standard unit of measure for air pressure.

Recommended tire inflation pressure The recommended tire inflation pressure for normal driving conditions is listed on the Tire and Loading Information placard located on the driver’s door B-pillar and provides best handling, tread life and riding comfort. If so equipped, supplemental information pertaining to special driving situations can be found on the tire inflation pressure label on the inside of the fuel filler flap.

Rim A metal support for a tire or a tire and tube assembly upon which the tire beads are seated.

Sidewall The portion of a tire between the tread and the bead.

TIN (Tire Identification Number) Unique identifier which facilitates efforts by tire manufacturers to notify purchasers in

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Tires and wheels recall situations or other safety matters concerning tires and gives purchasers the means to easily identify such tires. The TIN is comprised of “Manufacturer’s identification mark”, “Tire size”, “Tire type code” and “Date of manufacture”.

Tire load rating Numerical code associated with the maximum load a tire can support.

Tire ply composition and material used This indicates the number of plies or the number of layers of rubber-coated fabric in the tire tread and sidewall. Tire manufacturers also must indicate the ply materials in the tire and sidewall, which include steel, nylon, polyester, and others.

Tire speed rating Part of tire designation; indicates the speed range for which a tire is approved.

Total load limit Rated cargo and luggage load plus 68 kilograms (150 lb) times the vehicle’s designated seating capacity.

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Traction Force exerted by the vehicle on the road via the tires. The amount of grip provided.

Tread The portion of a tire that comes into contact with the road.

Treadwear indicators Narrow bands, sometimes called “wear bars” that show across the tread of a tire when only 1/16 in (1.6 mm) of tread remains.

TWR (Tongue Weight Rating) Maximum permissible weight on trailer tongue.

Uniform Tire Quality Grading Standards A tire information system that provides consumers with ratings for a tire’s traction, temperature and treadwear. Ratings are determined by tire manufacturers using U.S. government testing procedures. The ratings are molded into the sidewall of the tire.

Vehicle maximum load on the tire Load on an individual tire that is determined by distributing to each axle its share of the maximum loaded vehicle weight and dividing it by two.

Rotating tires G Warning! Rotate front and rear wheels only if the tires are of the same dimension. If your vehicle is equipped with mixed-size tires (different tire dimensions front vs. rear), tire rotation is not possible. G Warning! Have the tightening torque checked after changing a wheel. The wheels could come loose if they are not tightened to a torque of 110 lb-ft (150 Nm). Only use genuine Mercedes-Benz wheel bolts specified for your vehicle’s rims. Tire rotation can be performed on vehicles with tires of the same dimension all around. If your vehicle is equipped with tires of the same dimension all around, tires can be rotated, observing a front-to-rear rotation pattern that will maintain the intended

rotation (spinning) direction of the tire (Y page 247). In some cases, such as when your vehicle is equipped with mixed-size tires (different tire dimension front vs. rear), tire rotation is not possible. If applicable to your vehicle’s tire configuration, tires can be rotated according to the tire manufacturer’s recommended intervals in the tire manufacturer’s warranty pamphlet located in your vehicle literature portfolio. If none is available, tires should be rotated every 3 000 to 6 000 miles (5 000 to 10 000 km), or sooner if necessary, according to the degree of tire wear. The same rotation (spinning) direction must be maintained. Rotate tires before the characteristic tire wear pattern becomes visible (shoulder wear on front tires and tread center wear on rear tires). Thoroughly clean the mounting face of wheels and brake disks, i.e. the inner side of the wheels/tires, during each rotation. Check for and ensure proper tire inflation pressure. For information on wheel change, see “Flat tire” (Y page 366).

Winter driving General information Have your vehicle winterized at an authorized Mercedes-Benz Center.

Winter tires G Warning! Winter tires with a tread depth of less than 1/6 in (4 mm) must be replaced. They are no longer suitable for winter operation. G Warning! If you use your spare wheel when winter tires are fitted on the other wheels, be aware that the difference in tire characteristics may very well impair turning stability and that overall driving stability may be reduced. Adapt your driving style accordingly. Have the spare wheel replaced by regular road wheel with a winter tire at the nearest authorized Mercedes-Benz Center. Always use winter tires at temperatures below 45‡ (7†) and whenever wintry road conditions prevail. Not all M+S rated tires provide special winter performance. Make

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Winter driving sure the tires you use show the mountain/ snowflake.marking on the tire sidewall. These tires meet specific snow traction performance requirements of the Rubber Manufacturers Association (RMA) and the Rubber Association of Canada (RAC) and have been designed specifically for use in snow conditions. Use of winter tires is the only way to achieve the maximum effectiveness of your vehicle’s driving safety systems such as the ABS and the ESP® in winter operation. For safe handling, make sure all mounted winter tires are of the same make and have the same tread design. For information on winter tires for your vehicle model, see the “Technical data” section (Y page 401). Always observe the speed rating of the winter tires installed on your vehicle. If the maximum speed for which your tires are rated is below the speed rating of your vehicle, you must place a notice to this effect where it will be seen by the driver. Such notices are available at your tire dealer or any authorized Mercedes-Benz Center.

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Winter driving Snow chains ! Vehicles with Adaptive Damping System

(ADS): When driving with snow chains, do not select SPORT mode as this may result in damage to your vehicle.

! Some tire sizes do not leave adequate clearance for snow chains. To help avoid serious damage to your vehicle or tires, make sure the use of snow chains is permissible as specified in the “Technical data” section of this Operator’s Manual.

Snow chains should only be driven on snow- covered roads at speeds not to exceed 30 mph (50 km/h). Remove chains as soon as possible when driving on roads without snow. Observe the following guidelines when using snow chains: RUse of snow chains is not permissible with all wheel/tire combinations (Y page 401).

RUse snow chains in pairs and on rear

wheels only. Follow the manufacturer’s mounting instructions.

! If snow chains are mounted to the front wheels, they may scrape against the body

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or axle components. The tires or the vehicle could be damaged as a result.

ROnly use snow chains that are approved by Mercedes-Benz. Any authorized Mercedes- Benz Center will be glad to advise you on this subject.

RUse of snow chains may be prohibited

depending on location. Always check local and state laws before installing snow chains.

RDo not use snow chains on the spare wheel.

i When driving with snow chains, you may

wish to switch off the ESP® (Y page 77) before setting the vehicle in motion. This will improve the vehicle’s traction.

Winter driving instructions G Warning! If the vehicle becomes stuck in snow, make sure snow is kept clear of the exhaust pipe and from around the vehicle with the engine running. Otherwise, deadly carbon monoxide (CO) gases may enter vehicle interior resulting in unconsciousness and death. To assure sufficient fresh air ventilation, open a window slightly on the side of the vehicle not facing the wind. G Warning! The outside temperature indicator is not designed to serve as an ice-warning device and is therefore unsuitable for that purpose. Indicated temperatures just above the freezing point do not guarantee that the road surface is free of ice. The road may still be icy, especially in wooded areas or on bridges. G Warning! On slippery road surfaces, never downshift in order to obtain braking action. This could result in drive wheel slip and reduced

G Warning! Make sure not to endanger any other road users when carrying out these braking maneuvers.

vehicle control. Your vehicle’s ABS will not prevent this type of loss of control. The most important rule for slippery or icy roads is to drive sensibly and to avoid abrupt acceleration, braking and steering maneuvers. Do not use the cruise control system under such conditions. When the vehicle is in danger of skidding, shift the automatic transmission to neutral position N. Try to keep the vehicle under control by corrective steering action. i For information on driving with snow

chains, see “Snow chains” (Y page 270).

Road salts and chemicals can adversely affect braking efficiency. Increased pedal force may become necessary to produce the normal brake effect. Depressing the brake pedal periodically when traveling at length on salt-strewn roads can bring road-salt-impaired braking efficiency back to normal. If the vehicle is parked after being driven on salt-treated roads, the braking efficiency should be tested as soon as possible after driving is resumed.

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Driving instructions

Driving instructions Drive sensibly – save fuel To save fuel you should: RKeep tires at the recommended inflation

pressures.

RRemove unnecessary loads. RRemove carriers when not in use. RAllow engine to warm up under low load

use.

RAvoid frequent acceleration and

deceleration.

RHave all maintenance work performed at the intervals specified in the Maintenance Booklet and as required by the Maintenance system. Contact an authorized Mercedes-Benz Center.

Fuel consumption is also increased by driving in cold weather, in stop-and-go traffic, on short trips and in mountainous areas.

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Driving instructions Drinking and driving G Warning! Drinking and driving and/or taking drugs and driving are very dangerous combinations. Even a small amount of alcohol or drugs can affect your reflexes, perceptions and judgment. The possibility of a serious or even fatal accident are greatly increased when you drink or take drugs and drive. Do not drink or take drugs and drive or allow anyone to drive who has been drinking or taking drugs.

Pedals G Warning! Make sure absolutely no objects are obstructing the pedals’ range of movement. Keep the driver’s footwell clear of all obstacles. If there are any floormats or carpets in the footwell, make sure that the pedals still have sufficient clearance. During sudden driving or braking maneuvers, the objects could get caught between the pedals. You could then no

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longer brake or accelerate. This could lead to accidents and injury.

Power assistance G Warning! There is no power assistance for the steering and the service brake when the engine is not running. Steering and braking requires significantly more effort and you could lose control of the vehicle and cause an accident as a result. Do not turn off the engine while the vehicle is in motion.

Brakes

Downhill grades ! When driving down long and steep

grades, relieve the load on the brakes by shifting into a lower gear to use the engine’s braking power. This helps prevent overheating of the brakes and reduces wear. When using the engine’s braking power, a drive wheel may not spin for an extended period of time, e.g. on slippery road surfaces. This may cause serious damage to the drivetrain which is not covered by the Mercedes-Benz Limited Warranty.

Continuous or hard braking G Warning! Resting your foot on the brake pedal will cause excessive and premature wear of the brake pads. It can also result in the brakes overheating, thereby significantly reducing their effectiveness. It may not be possible to stop the vehicle in sufficient time to avoid an accident.

After hard braking, it is advisable to drive on for some time, rather than immediately park, so that the air stream will cool down the brakes faster.

Wet roads G Warning! After driving in heavy rain for some time without applying the brakes or through water deep enough to wet brake components, the first braking action may be somewhat reduced and increased pedal pressure may be necessary to obtain expected brake effect. Maintain a safe distance from vehicles in front. To help prevent brake disk corrosion after driving on wet or salt-covered roads, it is advisable to brake the vehicle with considerable force prior to parking. The heat generated serves to dry the brakes.

Salt-covered roads G Warning! A layer of salt on the brake discs and the brake linings may cause a delay in the braking effect, resulting in a significantly

increased braking distance, which could lead to an accident. To avoid this danger, you should: Roccasionally brake carefully when you

are driving on salt-covered roads, so that any layer of salt that may have built up on the brake discs and the brake linings is removed without putting other road users at risk

Rmaintain a greater distance to the vehicle

ahead and drive with particular care

Rcarefully apply the brakes at the end of a trip and immediately after commencing a new trip, so that salt residues are removed from the brake disc

Brake service ! The brake fluid level in the reservoir may be too low if the brake warning lamp in the instrument cluster comes on and an acoustic warning sounds although the parking brake is released. Observe additional messages in the multifunction display that may appear.

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Driving instructions Brake pad wear or a leak in the system may be the reason for low brake fluid in the reservoir. Have the brake system inspected immediately. Contact an authorized Mercedes-Benz Center.

All checks and service work on the brake system should be carried out by qualified technicians only. Contact an authorized Mercedes-Benz Center. Only install brake pads and use brake fluid recommended by Mercedes-Benz. G Warning! If other than recommended brake pads are installed, or other than recommended brake fluid is used, the braking properties of the vehicle can be degraded to an extent that safe braking is substantially impaired. This could result in an accident.

! Only conduct operational or performance tests on a two-axle dynamometer. If such tests are necessary, contact an authorized Mercedes-Benz Center. You could otherwise seriously damage the brake system or the transfer case which is not covered by the Mercedes-Benz Limited Warranty.

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Driving instructions ! Because the ESP® operates

automatically, the engine and ignition must be shut off (SmartKey in starter switch position 0 or 1 or KEYLESS-GO start/stop button in position 0 or 1) when the parking brake is being tested on a brake test dynamometer. Such testing should be no longer than 10 seconds. Active braking action through the ESP® may otherwise seriously damage the brake system which is not covered by the Mercedes-Benz Limited Warranty. If your brake system is normally only subjected to moderate loads, you should occasionally test the effectiveness of the brakes by applying above-normal braking pressure at higher speeds. This will also enhance the grip of the brake pads. G Warning! Make sure not to endanger any other road users when carrying out these braking maneuvers. Refer to the description of the Brake Assist System (BAS) (Y page 77).

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High-performance brake system The high-performance brake system is only available on ML 63 AMG. G Warning! New vehicle brake pads and discs, and replacement brake pads and discs may take several hundred miles of driving until they provide optimum braking efficiency. Until that time, you may need to use increased brake pedal pressure while braking. Please be aware of this and adjust your driving and braking accordingly during this break-in period. Excessive high-demand braking will cause correspondingly high brake wear. Please be attentive to the brake warning lamp in the instrument cluster and brake condition messages in the multifunction display. Especially for high performance driving, it is important to maintain and have the brake system checked regularly. The high-performance brake system is designed to operate under the extremely high operating demands required to accommodate the performance capabilities of the vehicle.

The brakes may produce a squeaking-type noise depending on the Rvehicle speed Rbrake force applied Rambient conditions, e.g. temperature and

humidity

As with any brake system, the wear of individual brake system components such as brake pads or disks strongly depends on your driving style and the conditions under which you operate the vehicle. Thus, a driving style calling for high demand braking will cause your vehicle’s brakes to wear more quickly.

Parking brake When driving on wet roads or dirt covered surfaces, road salt and/or dirt can get into the parking brake. To prevent corrosion and a reduction in the braking power of the parking brake, observe the following: X From time to time, lightly engage the

parking brake before driving off.

X Drive a distance of approximately 110 yds

(100 m) at a maximum speed of 12 mph (20 km/h).

G Warning! While performing this procedure please assure that the vehicle is stopped before applying the parking brake. Otherwise the rear wheels could lock up. You could lose control of the vehicle and cause an accident. In addition, the vehicle’s brake lights do not light up when the parking brake is engaged. Make sure not to endanger any other road users when you engage the parking brake.

Driving off Warm up the engine smoothly. Do not place full load on the engine until the operating temperature has been reached. ! When driving off on a slippery surface, do

not allow a drive wheel to spin for an extended period with the ESP® switched off. Doing so may cause serious damage to the drivetrain which is not covered by the Mercedes-Benz Limited Warranty.

! Simultaneously depressing the

accelerator pedal and applying the brakes reduces engine performance and causes premature brake and drivetrain wear which

is not covered by the Mercedes-Benz Limited Warranty.

Hydroplaning Depending on the depth of the water layer on the road, hydroplaning may occur, even at low speeds and with new tires. X Reduce vehicle speed. X Avoid track grooves in the road. X Brakes cautiously in the rain.

Standing water ! Do not drive through flooded areas.

Before driving through water, determine its depth. If you must drive through standing water, drive slowly to prevent water from entering the passenger compartment or the engine compartment. Water in these areas could cause damage to electrical components or wiring of the engine or transmission, or could result in water being ingested by the engine through the air intake causing severe internal engine damage. Any such damage is not covered by the Mercedes- Benz Limited Warranty.

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Driving instructions

i Vehicles with air suspension program:

Select the raised level (Y page 171) before driving through standing water.

For more information, see “Driving through water” (Y page 279).

Off-road driving G Warning! Do not load items on the basic carrier bars. It may cause instability during some maneuvers which could result in an accident. Drive slowly in unknown terrain. This will make it easier to recognize unexpected obstacles and avoid damage to the vehicle. To help avoid the vehicle rolling over, never turn it around on steep inclines. If the vehicle cannot complete the attempted climb, back it down in reverse gear. Do not drive along the side of a slope. The vehicle might otherwise rollover. If in doing so the vehicle begins to show a tendency to roll, immediately steer into a line of gravity (straight up or downhill). Never let the vehicle roll backwards in idle. You may lose control of the vehicle if you

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Driving instructions use only the service brake. For information on driving downhill, see “Driving downhill”. G Warning! Sand, dirt, mud and other material having friction property can cause exceptional wear and tear as well as brake failure. Have the brakes checked for dirt build-up and cleaned. There is otherwise a risk that full braking power may not be available in an emergency. G Warning! Vehicles with air suspension program: Please be aware that by raising the vehicle level, the center of gravity also rises. Therefore, always ensure that the vehicle level is as low as possible. With higher ride height the ESP® may activate earlier in certain situations. Read this chapter carefully before you begin off-road travel. Familiarize yourself with the vehicle characteristics and gear changing before you attempt any difficult terrain off-road driving. We recommend that you start out with easy off-road travel.

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Special driving features for off-road driving The following driving features are available for specific kind of operation: ROff-road ABS (Y page 77) ROff-road ESP® (Y page 79) ROff-road 4-ETS (Y page 78) RHill start assist system (Y page 133) RDownhill Speed Regulation (DSR)

(Y page 166)

ROff-road driving program (Y page 169) RAir suspension program (Y page 170)

Off-road driving rules REngage the off-road driving program

(Y page 169) before driving under off-road conditions.

RVehicles with air suspension program:

Make sure you select a vehicle level (Y page 171) appropriate to the topographical conditions. Always make sure the vehicle has enough ground clearance.

RFasten items being carried as securely as

possible (Y page 208).

RAlways navigate gradients with the engine on and with the transmission engaged in a gear. Switch on the DSR (Y page 166) to help maintain a preset speed.

! Observe the following during off-road

driving: RKeep doors, tailgate, windows, and tilt/ sliding sunroof closed whenever driving off-road.

RAdjust vehicle speed to condition of terrain. The more uneven, rutty and steeper the terrain, the lower the speed should be. Drive through water slowly at an even speed, avoiding a bow wave. RBe especially careful when driving in

unknown territory. It may be necessary to get out of the vehicle and scout the path you intend to take.

RWatch out for obstacles, such as rocks,

holes, tree stumps and ruts.

RBefore driving through water, determine

its depth.

RDo not stop vehicle while immersed in water, and do not shut off the engine.

RIn sandy soil, drive at a steady speed as

allowed by conditions. This helps overcome the vehicle rolling resistance and reduces the likelihood of the vehicle sinking into the ground.

RDo not initiate jumps with the vehicle. It interrupts the forward momentum of the vehicle.

RAlways drive onto slopes with the engine

running and the vehicle in gear.

RDo not shift automatic transmission into

neutral position N.

G Warning! Do not reduce the tire inflation pressure before driving through sand. However, if you do so, remember to correct the tire inflation pressure before continuing your trip. Driving with reduced tire inflation pressure increases the risk of losing control of the vehicle and rolling over.

Checklist before off-road driving Engine oil level RCheck the engine oil level (Y page 241).

Only with a proper oil level can the vehicle obtain a trouble-free oil supply, even on steep gradients.

! If the engine oil level warning lamp comes on while driving, stop the vehicle in a safe location or as soon at is safe to do so. Check the engine oil level. The engine oil level warnings should not be ignored. Extended driving with the symbol displayed could result in serious engine damage that is not covered by the Mercedes-Benz Limited Warranty.

Tires RCheck the tread depth and maintain

specified tire inflation pressure (a placard with the recommended tire inflation pressures is located on the driver’s door B- pillar (Y page 248)).

RCheck tires for possible damage and

remove foreign objects.

RReplace missing valve caps.

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Driving instructions

Rims RDented or bent rims can cause tire inflation pressure loss and damage the tire beads. For this reason, check and, if necessary, change rims before driving off-road.

Vehicle tool kit RCheck if the vehicle jack (Y page 301) is

functional.

RIn all cases take the vehicle tool kit, a

strong tow rope, a shovel and a small plank (to put under the vehicle jack on sandy soil) with you.

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Operation

Driving instructions Driving in steep terrain

Slope angle 1 Overhang angle, front 2 Overhang angle, rear Vehicles with steel suspension

117 2

27°

22°

26°

17 Vehicles with AMG Sport-Package 278

Vehicles with air suspension program

117 2

Raised level

Highway

31°

25°

ML 63 AMG

Raised level

Highway

25°

18°

25°

20°

29°

24°

27°

22°

RComply with the warnings (Y page 275) and

rules for off-road driving (Y page 276).

RDriving on embankments, slopes and other steep inclines should only be done straight up or downhill, i. e. in the line of gravity. Maximum vehicle climbing ability is a 100% grade which is equivalent to a slope angle of 45°. Keep in mind that the climbing ability of the vehicle depends on terrain conditions.

RShift automatic transmission into gear

range 1 (Y page 133).

RDrive slowly.

RAvoid excessive engine speeds – drive with moderate engine speeds (max. 3 000 rpm).

RUtilize the engine’s braking power when descending a slope, observe the engine speed (do not overrev the engine). Apply the service brake as needed.

i For maximum engine speed, see

“Instrument cluster” (Y page 32) and see “Engine” (Y page 399).

RCheck the brakes after a lengthy

downgrade drive. G Warning! Never turn the vehicle around on steep inclines. The vehicle might roll over. If the vehicle cannot complete the attempted climb, back it down in reverse gear.

i The hill start assist system supports you

when driving uphill. For more information, see “Hill start assist system” (Y page 133).

Traction in steep terrain The maximum vehicle climbing ability is a 100% grade which is equivalent to a slope angle of 45°. Keep in mind that the climbing

ability of the vehicle depends on terrain conditions. Be easy on the accelerator and watch for continuous wheel traction when driving in steep terrain. i The 4-ETS helps greatly when starting out

on a steep incline when the front wheels have then the tendency to slip due to the weight shifting towards the rear axle. The 4-ETS recognizes the situation and limits the torque for the front wheels by braking them. Simultaneously the torque for the rear wheels is increased.

Driving across a hilltop Decelerate just ahead of a hilltop (do not shift automatic transmission into neutral position N), to prevent the vehicle from speeding up too much after climbing a hill. Use the momentum of the vehicle to drive across the hilltop. After climbing a hill, driving in this manner prevents the vehicle from: Rlosing ground contact when cresting hills Rlosing its forward momentum Rspeeding up too much after climbing the hill

Driving downhill RDrive slowly. RDo not drive at an angle to the incline. Steer

into the line of gravity and drive with the front wheels pointing straight downhill. Otherwise, the vehicle may slide sideways off the path and roll over.

RShift automatic transmission into gear

range 1 (Y page 133).

ROn steep inclines, use the Downhill Speed

Regulation (Y page 166).

RUtilize the engine’s braking power to

reduce vehicle speed. If this is insufficient, apply the brakes gently. Make sure the vehicle is moving in the line of gravity.

RCheck the brakes after a lengthy

downgrade drive.

i The special Off-road ABS (Y page 77)

setting allows for precise and brief (cyclical) blocking of the front wheels, permitting them to dig into loose ground. Remember that, when stopped, the front wheels slide across a surface and thus lose their ability to steer the vehicle.

Operation

Driving instructions

Driving through water

1 Fording depth Vehicles with steel suspension or air suspension program (raised level)

Vehicles with BlueTEC

14 in (35 cm)

All other vehicles

20 in (50 cm)

RBefore driving through water, determine its

depth.

! The water depth must not exceed the respective value listed in the table. The

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otherwise enter the vehicle interior and damage the vehicle’s electronics, as well as the interior equipment.

RThere is a very high level of driving

resistance in water. The surface is slippery and may not be firm, making pulling away in water difficult and dangerous.

RMake sure that only small bow waves are formed when driving the vehicle through water.

RClean mud off the tire tread after driving

through water.

RTo dry the brakes, apply pressure to the brake pedal several times while driving after leaving the water.

Crossing obstacles

Operation

Driving instructions

ground under the water might not be firm which could result the water being deeper than expected when driving the vehicle through it. Please note that the water level is correspondingly lower for flowing water.

RVehicles with air suspension program:

Select the highest vehicle level possible (Y page 171).

RSwitch to off-road driving program

(Y page 169) before driving through water.

RShift automatic transmission into gear

range 1 or 2 (Y page 133). RAvoid high engine speeds. REnter and leave the water only at a shallow

spot, driving at walking speed.

! Never accelerate before driving into the water. The bow wave could force water into the engine and auxiliary equipment, thus damaging them.

RDrive through the water slowly and at a

constant speed.

RDo not stop vehicle while immersed in water, and do not shut off the engine.

! Do not open any of the vehicle’s doors while driving through water. Water could

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! Obstacles can damage the vehicle

underbody or suspension components. If possible use the assistance of a second person outside the vehicle to scout the path you intend to take and check for adequate ground clearance when you cross obstacles with your vehicle. The person assisting you outside the vehicle should always be a safe distance away from the vehicle and positioned so that he or she cannot get hurt in case of any unexpected vehicle movement. After off-road driving or crossing obstacles, inspect vehicle for any damage, especially vehicle underbody and suspension components. Failure to do so can adversely affect the vehicle’s future performance, including increased chance of an accident. When driving over tree stumps, big rocks and other obstacles, observe the following rules: RMake sure the off-road driving program

(Y page 169) is switched on.

RAvoid high engine speeds. RShift automatic transmission into gear

range 1 (Y page 133).

RCheck the vehicle clearance before

crossing obstacles.

RCross obstacles (e. g. tree stumps or big

rocks) very slowly by aiming one of the front wheels at the center of the obstacle, and repeat same with the rear wheel.

! Special attention is needed when you

cross obstacles on a steep incline. The vehicle could slide sideways as a result of its possible slanted position which in turn may result in the vehicle tipping or rolling over.

Set the raised level (Y page 171).

RAvoid high engine speeds. RShift automatic transmission into a gear range that is appropriate for the terrain. RIn sandy soil, drive at a steady speed as

conditions permit. This helps overcome the vehicle rolling resistance and reduce the likelihood of the vehicle sinking into the ground.

RDrive in tracks of other vehicles if they are

not too deep and you have sufficient clearance.

Driving on sand G Warning! Do not reduce the tire inflation pressure before driving through sand. However, if you do so, remember to correct the tire inflation pressure before continuing your trip. Driving with reduced tire inflation pressure increases the risk of losing control of the vehicle and rolling over. When driving on sand, observe the following rules: RVehicles with air suspension program:

Ruts A number of off-road tracks or other byways have deep ruts which can cause the underbody to come in contact with the ground. RMake sure the off-road driving program

(Y page 169) is switched on.

RVehicles with air suspension program:

Set the raised level (Y page 171).

Operation

Driving instructions ! Check that the ruts are not too deep and

your vehicle’s clearance is sufficient. Otherwise: Ryour vehicle may be damaged Rthe underbody of the vehicle may come in contact with the ground and you may get stuck

RAvoid high engine speeds. RShift automatic transmission into gear

range 1 (Y page 133).

RDrive next to the ruts rather than through

them if at all possible.

RIf the ruts are too deep to drive in, drive with one side of the vehicle on the grassy center strip if the route permits.

Returning from off-road driving G Warning! If you feel a sudden significant vibration or ride disturbance, or you suspect that possible damage to your vehicle has occurred, you should turn on the hazard warning flashers, carefully slow down, and drive with caution to an area which is a safe distance from the road.

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Operation

Driving instructions Inspect the tires and the vehicle underbody for possible damage. If the vehicle or tires appear unsafe, have the vehicle towed to the nearest authorized Mercedes-Benz Center or tire dealer for repairs. Off-road driving increases strain on the vehicle. We recommend that you inspect the vehicle for possible damage after each off-road trip. Recognizing any damage and a subsequent timely repair reduces the chance of a possible breakdown or accident later on. Proceed as follows: RSwitch off the off-road driving program

(Y page 170).

RSwitch off the DSR (Y page 167). RVehicles with air suspension program:

Lower the vehicle back to a level suitable for road conditions, e. g. highway/high- speed level (Y page 171).

RClean all exterior lamps and check for

possible damage.

RClean the front and rear license plate. RRemove excessive dirt from tires, wheels,

wheel housings, and underbody. For instance, after driving in mud, clean the radiator, chassis, engine, brakes, and

282

wheels from extreme dirt using a strong jet of water.

RCheck tires for possible damage. RInspect vehicle underbody, oil pan, brake hoses, etc., as well as vehicle underbody for possible damage.

RCheck for brush or branches caught in the

underbody.

! Brush or branches could increase the

possibility of a fire, as well as cut fuel and/ or brake lines, puncture rubber bellows of the axles or drive shafts.

RAfter continued operation in mud, sand, water or other dirty conditions clean the brake discs, wheels, brake pads and check and clean axle joints. RConduct a brake test.

Trailer towing G Warning! Failure to use proper equipment and driving technique can result in a loss of vehicle control when towing a trailer. Improper towing or failure to follow the instructions in this manual can result in vehicle damage and/or serious personal injury. Follow the guidelines below carefully to assure safe trailer operation. Contact an authorized Mercedes-Benz Center should you require an explanation of information contained in this manual.

Trailer hitch ROnly install a trailer hitch receiver approved

for your vehicle. For information on availability and installation, contact an authorized Mercedes-Benz Center.

RThe bumpers on your vehicle are not

designed for use with clamp-type hitches.

Do not attach rental hitches or other bumper-type hitches to them.

RTo reduce the possibility of damage,

remove the hitch ball adapter from the receiver when not in use.

Electrical connections The vehicle is prewired to accept the seven- wire harness included in the Mercedes-Benz approved trailer hitch receiver kit. i A four-pole conversion plug is available

from your authorized Mercedes-Benz Center as a spare part.

For further information, contact an authorized Mercedes-Benz Center.

Vehicle and trailer weights and ratings The Gross Trailer Weight (GTW) is the weight of the trailer plus the weight of all cargo, equipment, luggage, etc. loaded on the trailer. The maximum permissible gross trailer weight to be towed: 7 200 lb (3 265 kg). Trailer Tongue Weight Rating (TWR) is the maximum permissible weight on the trailer tongue: 576 lb (261 kg) limit for Mercedes- Benz approved hitch receiver.

Loading a trailer RWhen loading a trailer, you should observe that neither the permissible GTW, nor the Gross Vehicle Weight Rating (GVWR) are exceeded. The GVWR is indicated on the certification label located on the driver’s door B-pillar (Y page 248). Maximum permissible values are listed on the safety compliance certification labels for the vehicle and for the trailer to be towed. The lowest value listed must be selected when determining how the vehicle and trailer are loaded.

RThe Tongue Weight (TW) at the hitch ball

must be added to the Gross Vehicle Weight (GVW) to prevent exceeding your Mercedes-Benz tow vehicle’s rear Gross Axle Weight Rating (GAWR). The GVW and GAWR are indicated on the certification label located on the driver’s door B-pillar (Y page 248).

i Mercedes-Benz recommend loading the trailer in such a manner that it has a TW between 8 % and 15 % of the GTW.

i Maximum trailer weight ratings are calculated assuming the vehicle, plus

Operation

Driving instructions

driver. The weight of other accessories, passengers and cargo will reduce the maximum trailer weight and TW your vehicle can tow.

Checking weights of vehicle and trailer RTo assure that the towing vehicle and trailer

are in compliance with the maximum permissible weight limits, have the loaded rig (towing vehicle including driver, passengers and cargo, trailer fully loaded) weighed on a commercial scale.

RCheck the vehicle’s front and rear Gross

Axle Weight (GAW), the Gross Trailer Weight (GTW) and Tongue Weight (TW). The values as measured must not exceed the weight limits listed under “Vehicle and trailer weights and ratings” (Y page 283).

Coupling a trailer G Warning! Vehicles with air suspension program: While you are coupling or decoupling a trailer, make sure nobody locks or unlocks the vehicle and/or opens or closes doors or the tailgate.

283

Operation

Driving instructions The vehicle’s level could change and you could endanger yourself and/or others as a result. Make sure that you do not operate the ADS switch or the vehicle level control system when coupling/decoupling the trailer. Observe maximum permitted trailer dimensions (width and length). Most states and all Canadian provinces require Rsafety chains between the towing vehicle

and the trailer The chains should be criss-crossed under the trailer tongue. They must be attached to the hitch receiver, and not to the vehicle’s bumper or axle. Make sure to leave enough slack in the chains to permit turning corners.

Ra separate brake system at various trailer

weights

Ra break-away switch on trailers with a

separate brake system. Check with your local state laws for specific requirements. The switch activates the trailer brakes in the possible event that the trailer might separate from the tow vehicle.

284

! Do not connect a trailer brake system (if

trailer is so equipped) directly to the vehicle’s hydraulic brake system, as your vehicle is equipped with antilock brakes. If you do, neither the vehicle’s brakes nor the trailer’s brakes will function properly.

i The provided vehicle electrical wiring

harness for trailer towing has a brake signal wire for hook-up to a brake controller.

X Make sure the automatic transmission is in

park position P (Y page 130).

X Engage the parking brake for the vehicle

(Y page 127).

X Start the engine (Y page 122). X Vehicles with air suspension program:

Set the vehicle level to highway (Y page 171).

X Vehicles with air suspension program:

Set the ADS to AUTO or COMF (Y page 170).

X Turn off the engine (Y page 127). X Close all doors and the tailgate. X Attach the trailer. X Plug in all electrical connectors.

i Vehicles with air suspension program:

When you are towing a trailer, the vehicle level always remains in the highway setting. The following applies additionally when towing a trailer: RThe vehicle is lowered to the highway

level when it reaches a speed of 5 mph (8 km/h) if not set to highway level. RThe highspeed level is not available. The restrictions that apply to towing also apply when using accessories that are connected to the trailer power socket, such as a bicycle rack.

Towing a trailer There are many different laws, including speed limit restrictions, having to do with trailer towing. Make sure your rig will be legal, not only for where you reside, but also for where you will be driving. A good source for this information can be the police or local authorities. Note the following, when driving with a trailer: RIn order to gain skill and an understanding

of the vehicle’s behavior, you should

practice turning, stopping and backing up in an area which is free from traffic.

RBefore you start driving check the

trailer hitch

- break-away switch - safety chains - electrical connections

lighting tires

RAdjust the mirrors (Y page 106) to permit unobstructed view beyond rear of trailer. RIf the trailer has electric brakes, start your vehicle and trailer moving slowly, and then apply only the trailer brake controller by hand to make sure the brakes are working properly.

RAlways secure items in the trailer to

prevent load shifts while driving.

RWhen towing a trailer, check occasionally to make sure the load is secure, and that lighting and trailer brakes (if so equipped) are functioning properly.

RTake into consideration that when towing a

trailer, the handling characteristics are

Operation

Driving instructions

1, switch on off-road driving program (Y page 169).

RWhen going down an incline, shift into a lower gear and use the engine’s braking effect. Avoid riding the brakes, thus overheating the vehicle and trailer brakes (if so equipped).

RIf the engine coolant rises to an extremely high temperature when the air conditioning is on, turn off the air conditioning system. Engine coolant heat can be additionally vented by opening the windows, switching the climate control fan speed to high and setting the temperature control to the maximum.

RExtreme care must be exercised since your vehicle with a trailer will require additional passing distance ahead than when driving without a trailer. Because your vehicle and trailer is longer than your vehicle alone, you will also need to go much farther ahead of the passed vehicle before you can return to your lane.

different and less stable from those when operating the vehicle without a trailer. It is important to avoid sudden maneuvers.

RThe vehicle and trailer combination is

heavier, and therefore is limited in acceleration and climbing ability, and requires longer stopping distances. It is more prone to reacting to cross wind gusts, and requires more sensitive steering input.

RIf possible, do not brake abruptly, but

rather engage the brake slightly at first to permit the trailer to activate its brake. Then increase the braking force.

! If the trailer should begin to sway, reduce

the vehicle’s speed immediately. Do not attempt to straighten out the tow vehicle and trailer by increasing the speed. RIf the transmission shifts between gears on

inclines repeatedly, shift to a lower gear range manually (Y page 133). Select 4, 3, 2 or 1. A lower gear and reduction of speed reduces the chance of engine overloading and/or overheating.

ROn very steep inclines, not manageable

with automatic transmission in gear range

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Operation

Driving instructions Decoupling the trailer G Warning! Vehicles with air suspension program: While you are coupling or decoupling a trailer, make sure nobody locks or unlocks the vehicle and/or opens or closes doors or the tailgate. The vehicle’s level could change and you could endanger yourself and/or others as a result. Make sure that you do not operate the ADS switch or the vehicle level control system when coupling/decoupling the trailer.

X Make sure the automatic transmission is in

park position P (Y page 130).

X Engage the parking brake for the vehicle

(Y page 127).

X Start the engine (Y page 122). X Close all doors and the tailgate. X Engage the parking brake for the trailer. G Warning! Vehicles with air suspension program: As soon as you disconnect the electrical connection between the trailer and the

18 Observe all legal requirements. 286

vehicle, the vehicle will lower. To help avoid personal injury, make sure no one is near the wheel housing or underneath the vehicle before the electrical connection is disconnected. When you decouple the trailer, the vehicle is temporarily raised because the springs are relieved of load. Be especially careful during this process, as you could otherwise injure yourself and/or others. Make sure that any persons remaining in the vehicle do not press the switches for vehicle level control or the ADS.

X Disconnect all electrical plug connectors. X Decouple the trailer. X Make sure that the trailer coupling is free

of load.

X Turn off the engine (Y page 127).

Driving abroad If you plan to drive the vehicle outside the U.S. or Canada, you should request dealer network information for your destination from any authorized Mercedes-Benz Center.

Control and operation of radio transmitter

Safety notes G Warning! Please do not forget that your primary responsibility is to drive the vehicle safely. Only operate the COMAND (Cockpit Management and Data system), radio or telephone18 if road, weather and traffic conditions permit. Otherwise, you may not be able to observe traffic conditions and could endanger yourself and others. Bear in mind that at a speed of just 30 mph (approximately 50 km/h), your vehicle is covering a distance of 44 feet (approximately 14 m) every second.

Telephones and two-way radios G Warning! Never operate radio transmitters equipped with a built-in or attached antenna, such as a portable telephone or a citizens band unit, from inside the vehicle while the engine is running. Doing so could lead to a malfunction of the vehicle’s electronic system, possibly resulting in an accident and/or serious personal injury. Radio transmitters should only be used inside the vehicle if they are connected to an antenna that is installed on the outside of the vehicle. G Warning! Please do not forget that your primary responsibility is to drive the vehicle. A driver’s attention to the road must always be his/her primary focus when driving. For your safety and the safety of others, we recommend that you pull over to a safe location and stop before placing or taking a telephone call. If you choose to use the telephone19 while driving, please use the hands-free device and only use the telephone when road,

19 Observe all legal requirements

weather and traffic conditions permit. Some jurisdictions prohibit the driver from using a mobile telephone while driving a vehicle. Only operate the COMAND19 (Cockpit Management and Data System) if road, weather and traffic conditions permit. Bear in mind that at a speed of just 30 mph (approximately 50 km/h), your vehicle is covering a distance of 44 feet (approximately 14 m) every second. Refer to the radio transmitter operation instructions regarding use of an external antenna.

Emission control Certain systems of the engine serve to keep the toxic components of the exhaust gases within permissible limits required by law. These systems will function properly only when maintained strictly according to factory specifications. Any adjustments on the engine should, therefore, be carried out only by qualified Mercedes-Benz Center authorized technicians.

Operation

Driving instructions Engine adjustments should not be altered in any way. Moreover, the specified service procedures must be carried out regularly according to Mercedes-Benz servicing requirements. For details refer to the Maintenance Booklet. G Warning! Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains carbon monoxide (CO), and inhaling it can cause unconsciousness and possible death. Do not run the engine in confined areas (such as a garage) which are not properly ventilated. If you think that exhaust gas fumes are entering the vehicle while driving, have the cause determined and corrected immediately. If you must drive under these conditions, drive only with at least one window fully open at all times.

287

Operation

Maintenance Maintenance Notes The Maintenance System in your vehicle tracks distance driven and the time elapsed since the last maintenance service, calculates other maintenance service work required, and calls for the next maintenance service accordingly. We strongly recommend that you have your vehicle serviced at an authorized Mercedes- Benz Center, in accordance with the Maintenance Booklet at the times called for by the maintenance service indicator. i Failure to have the vehicle maintained in accordance with the Maintenance Booklet and maintenance service indicator at the designated times/mileage will result in vehicle damage not covered by the Mercedes-Benz Limited Warranty.

Maintenance service indicator message The maintenance service indicator message will notify you when the next maintenance service is due. Starting approximately 1 month before the next maintenance service is due, one of the following messages will appear in the multifunction display while you are driving or when you switch on the ignition (example service A): Service A In XXXX Miles (km) Service A In XXX Days Service A In X Day Service A Due Now

to

(approximately 1 hour) Service H (approximately 8 hours)

Refer to Maintenance Booklet for a listing of maintenance services and intervals they need to be performed at.

Clearing the maintenance service indicator message The maintenance service indicator message is cleared automatically Rafter approximately 10 seconds when you

switch on the ignition

Rafter approximately 10 seconds when

reaching the service threshold while driving Rafter approximately 30 seconds, once the suggested maintenance service term has passed

The maintenance services will be indicated by showing a service type A through type H in the multifunction display. Types A through H are classified based on estimated time needed to perform the maintenance service, ranging: from Service A

288

In addition, a signal sounds when the message appears. Any authorized Mercedes-Benz Center will reset the maintenance service indicator following a completed maintenance service.

Calling up the maintenance service indicator display i The menu overview can be found on

(Y page 143).

You can call up the maintenance service indicator display at any time to check when the next maintenance service is due. X Switch on the ignition. X Press button è or ÿ on the

multifunction steering wheel repeatedly until the standard display (Y page 144) appears in the multifunction display.

X Press button k or j on the

multifunction steering wheel until the maintenance service indicator display with the service symbol 9 and the maintenance service deadline appears in the multifunction display.

i If the battery is disconnected, the days of

disconnection will not be included in the

Operation

Maintenance count shown by the maintenance service indicator. To arrive at the true maintenance service deadline, you will need to subtract these days from the days shown in the maintenance service indicator message or maintenance service indicator display. Do not confuse the maintenance service indicator with the engine oil level indicator N.

Resetting the maintenance service indicator In the event that the maintenance service on your vehicle is not carried out at an authorized Mercedes-Benz Center, you can have the maintenance service indicator reset.