2012 Mercedes-benz M Class Owners Manual

button does not light up during self- diagnosis of the system.

Rthe indicator lamp in the SOS button,

F Roadside Assistance button or ï information button continues to be lit red after the system self-diagnosis.

RThe Tele Aid Inoperative or Tele Aid Not Activated message appears in the multifunction display after the system self- test.

If a malfunction is indicated as outlined above, the system may not operate as expected. In the event of an emergency, assistance must be summoned by other means.

Have the system checked at the nearest authorized Mercedes-Benz Center or contact the following service hotlines:

RUSA: Mercedes-Benz Customer Assistance

Center under 1-800-FOR-MERCedes(1-800-367-6372) or 1-888-990-9007

RCanada: Customer Service at

1-888-923-8367

Emergency call

Important safety notes ! A license agreement must exist in order to activate the mbrace service. Ensure that your system is activated and ready for use, and press the ï MB Info call button to register. If any of the steps mentioned is not carried out, the system may not be activated.

If you have questions about the activation, contact one of the following telephone assistance services:

RUSA: Mercedes-Benz Customer

Assistance Center under 1-800-FOR-MERCedes (1-800-367-6372) or 1-888-990-9007

RCanada: Customer Service at

1-888-923-8367

An emergency call is dialed automatically if an air bag or Emergency Tensioning Device is triggered.

i An mbrace emergency call that has been

initiated automatically cannot be terminated by the customer.

An emergency call can also be initiated manually.

As soon as the emergency call has been initiated, the indicator lamp in the SOS button flashes. The Connecting Call message appears on the multifunction display.

The audio output is muted.

Once a connection has been established, the Call Connected message appears in the multifunction display.

All important information on the emergency is transmitted, for example:

Rcurrent location of the vehicle (as

determined by the GPS system)

Rvehicle identification number

Rinformation on the type of emergency

Shortly after the emergency call has been initiated, a voice connection is automatically established between the Mercedes-Benz Customer Assistance Center and the vehicle occupants. If the vehicle occupants respond, the Mercedes-Benz Customer Assistance Center attempts to get more information on the emergency.

i If no vehicle occupant answers, an

ambulance is immediately sent to the vehicle.

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301

Mercedes-Benz Customer Assistance Center will automatically contact local emergency officials with the vehicle's approximate location if they receive an automatic SOS signal and cannot make voice contact with the vehicle occupants.

Roadside Assistance button

G WARNING If the indicator lamp in the SOS button is flashing continuously and no voice connection to the Mercedes-Benz Customer Assistance Center was established, then the mbrace system could not initiate an emergency call (e.g. the relevant cellular phone network is not available).

The message Call Failed appears in the multifunction display for approximately 10 seconds.

Should this occur, assistance must be summoned by other means.

Making an emergency call

X To initiate an emergency call

manually: press cover : briefly to open it.

X Press SOS button ; briefly.

The indicator lamp in SOS button ; flashes until the emergency call is concluded.

X Wait for a voice connection to the

Mercedes-Benz Customer Assistance Center.

X After the emergency call is ended, close

cover :.

G WARNING If you feel in any way in jeopardy when in the vehicle (e.g. smoke or fire in the vehicle, vehicle in a dangerous road location), please do not wait for voice contact after you have pressed the SOS button. Carefully leave the vehicle and move to a safe location. The

X Press and hold Roadside Assistance

button : for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assistance Center. The indicator lamp in Roadside Assistance button : flashes while the call is active. The Connecting Call message appears in the multifunction display. The audio output is muted.

If a connection can be established, the Call Connected message appears in the multifunction display.

If a cellular phone network is available and there is sufficient GPS reception, the mbrace system transmits data to the Mercedes-Benz Customer Assistance Center, for example:

Rcurrent location of the vehicle

Rvehicle identification number

i The display of the audio system or

COMAND shows that an mbrace call is active. During the call, you can change to the navigation menu by pressing the NAVI button on COMAND, for example.

Voice output is not available.

302 Features

A voice connection is established between the Mercedes-Benz Customer Assistance Center and the vehicle occupants.

X Describe the type of assistance needed.

The Mercedes-Benz Customer Assistance Center either sends a qualified Mercedes- Benz technician or organizes for your vehicle to be transported to the nearest authorized Mercedes-Benz Center. You may be charged for services such as repair work and/or towing. Further details are available in your mbrace manual.

i The mbrace system failed to initiate a

Roadside Assistance call if:

Rthe indicator lamp in Roadside

Assistance button : is flashing continuously.

Rno voice connection to the Mercedes- Benz Customer Assistance Center was established.

This may be because the corresponding mobile phone network is not available. The Call Failed message appears in the multifunction display.

X To end a call: press the~ button on the

multifunction steering wheel.

or

X Press the corresponding button for ending

a phone call on the audio system or on COMAND.

MB Info call button

22 USA only.

X Press and hold MB Info call button : for

more than two seconds. This initiates a call to the Mercedes-Benz Customer Assistance Center. The indicator lamp in MB Info call button : flashes while the connection is being established. The Connecting Call message appears in the multifunction display. The audio output is muted.

If a connection can be established, the Call Connected message appears in the multifunction display.

If a cellular phone network is available and there is sufficient GPS reception, the mbrace system transmits data to the Mercedes-Benz Customer Assistance Center, for example:

Rcurrent location of the vehicle

Rvehicle identification number

i The display of the audio system or

COMAND shows that an mbrace call is active. During the call, you can change to the navigation menu by pressing the NAVI button on COMAND, for example.

Voice output is not available.

A voice connection is established between the Mercedes-Benz Customer Assistance Center and the vehicle occupants. You can obtain information on how to operate your vehicle's systems, on the location of the nearest authorized Mercedes-Benz Center, and on further products and services offered by Mercedes-Benz USA.

Further details on the mbrace system can be found under http://www.mbusa.com22. Log in under "Owners Online".

i The mbrace system failed to initiate an

MB Info call if:

Rthe indicator lamp in MB Info call

button : is flashing continuously.

Rno voice connection to the Mercedes- Benz Customer Assistance Center was established.

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303

This may be because the corresponding mobile phone network is not available. The Call Failed message appears in the multifunction display.

X To end a call: press the~ button on the

multifunction steering wheel.

or

X Press the corresponding button for ending

a phone call on the audio system or on COMAND.

Call priority

When service calls are active, e.g. Roadside Assistance or MB Info calls, an emergency call can still be initiated. In this case, an emergency call will take priority and override all other active calls.

The indicator lamp of the respective button flashes until the call is ended. An emergency call can only be terminated by the Mercedes- Benz Customer Assistance Center. All other calls can be ended by pressing the ~ button on the multifunction steering wheel or the corresponding button for ending a telephone call on the audio system or on COMAND.

i If an mbrace call is initiated, audio output

is muted. The mobile phone is no longer connected to COMAND. However, if you want to use your mobile phone, we recommend that you do this only when the vehicle is stationary and in a safe location.

Downloading destinations

can be downloaded onto the navigation system of your vehicle. If you know the destination, you can download the address or obtain the location of points of interest (POIs)/important destinations in the surrounding area.

You are prompted to confirm route guidance to the address entered.

The system calculates the route and subsequently starts the route guidance with the address entered.

i If you select No, the address can be stored

in the address book.

i The Destination Download function is

available if the corresponding mobile phone network is available and data transfer is possible.

Route Assistance

This service is part of the mbrace PLUS Package and cannot be purchased separately.

i You can also use the Route Assistance

function if your vehicle is not equipped with a navigation system.

Within the framework of this service, you receive a professional and reliable form of navigation support without having to leave your vehicle.

The customer service representative determines a suitable driving route based on your current vehicle position and the desired destination and guides you live through the current sections of the route.

i Information on the components and

Search & Send

operating principles of COMAND can be found in the separate COMAND operating instructions.

i You can only use the Destination Download function if the vehicle is equipped with a navigation system.

Destination Download gives you access to a database with over 15 million points of interest (POIs)/important destinations that

"Search & Send" is a destination entry service. You can find further information on "Search & Send" in the separate COMAND operating instructions.

304 Features

Vehicle remote opening

Vehicle remote closing

If you have unintentionally locked your vehicle (e.g. the SmartKey is still in the vehicle) and a replacement SmartKey is not available, the vehicle can be opened by a Mercedes-Benz Customer Assistance Center.

The vehicle can be opened remotely up to four days after the ignition was last switched off.

X Contact the following service hotlines:

RUSA: Mercedes-Benz Customer

Assistance Center under 1-800-FOR- MERCedes(1-800-367-6372) or 1-888-990-9007

If you forget to lock your vehicle but are no longer in the vicinity of the vehicle, it can be locked for you by the Mercedes-Benz Customer Assistance Center.

The vehicle can be locked remotely up to four days after the ignition was last switched off.

X Contact the following service hotlines:

RUSA: Mercedes-Benz Customer

Assistance Center under 1-800-FOR- MERCedes(1-800-367-6372) or 1-888-990-9007

RCanada: Customer Service at

RCanada: Customer Service at

1-888-923-8367

1-888-923-8367

You will be asked for your PIN.

You will be asked for your password.

X Return to your vehicle at the time agreed upon with the Mercedes-Benz Customer Assistance Center.

X Pull the tailgate handle for at least 20

seconds until the indicator lamp in the SOS button (Y page 300) flashes. The Connecting Call message appears on the multifunction display.

Alternatively, the vehicle can also be opened via the Internet or an iPhone in the "Owners Online" section using your ID number and password23.

i Vehicle remote unlocking is only possible if the corresponding mobile phone network is accessible. The SOS button flashes and the Call Connected message appears in the multifunction display to confirm that the command for vehicle remote unlocking has been received.

If you pull the tailgate handle for more than 20 seconds before receiving authorization for remote unlocking from the Mercedes- Benz Customer Assistance Center, you must wait 15 minutes before you can pull the tailgate handle again.

The next time you are in your vehicle and switch on the ignition, the Tele Aid: Doors Locked by Remote message appears in the multifunction display.

Alternatively, the vehicle can also be locked via the Internet or an iPhone in the "Owners Online" section using your ID number and password.

i The vehicle valet locking feature is

available when the relevant mobile phone network is available and data connection is possible.

Service for recovering a stolen vehicle

If your vehicle has been stolen:

X Notify the police.

The police will issue a numbered incident report.

X This number will be forwarded to the Mercedes-Benz Customer Assistance Center together with your PIN. The Mercedes-Benz Customer Assistance Center then attempts to locate the mbrace system. The Mercedes-Benz Customer Assistance Center contacts you and the local law enforcement agency if the vehicle is located. However, only the law

23 USA only.

enforcement agency is informed of the location of the vehicle.

i If the anti-theft alarm system is active for

longer than 30 seconds, mbrace automatically informs the Mercedes-Benz Customer Assistance Center.

Garage door opener

Important safety notes

The HomeLink® garage door opener integrated in the rear-view mirror allows you to operate up to three different door and gate systems.

i Certain garage door drives are

incompatible with the integrated garage door opener. If you have difficulty programming the integrated garage door opener, contact an authorized Mercedes- Benz Center or call one of the following telephone hotlines:

RUSA: Mercedes-Benz Customer

Assistance Center at 1-800-FOR-MERCedes

RCanada: Customer Service at

1-800-387-0100

G WARNING Before programming the integrated remote control to a garage door opener or gate operator, make sure people and objects are out of the way of the device to prevent potential harm or damage. When programming a garage door opener, the door moves up or down. When programming a gate operator, the gate opens or closes.

Do not use the integrated remote control with any garage door opener that lacks safety stop and reverse features as required by U.S. federal safety standards (this includes any garage door opener model manufactured before April 1, 1982). A garage door that cannot detect an object - signaling the door

Features

305

to stop and reverse - does not meet current U.S. federal safety standards.

When programming a garage door opener, park vehicle outside the garage.

Do not run the engine while programming the integrated remote control. 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. All exhaust gas contains carbon monoxide (CO), and inhaling it can cause unconsciousness and possible death.

i USA only:

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. this device must accept 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.

FCC ID: CB2HMIHL4

i Canada only:

This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions:

1. This device may not cause interference, and

2. this device must accept 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.

IC: 279B-HMIHL4

306 Features

Programming the integrated garage

door opener on the rear-view mirror

Programming

G WARNING Only press the transmitter button on the integrated garage door opener if there are no persons or objects present within the sweep of the garage door. People could otherwise be injured by the movement of the door.

Integrated garage door opener on the rear-view mirror

Garage door remote control A is not part of this integrated garage door opener.

i To achieve the best result, insert new batteries in garage door remote control A before programming.

X Before programming for the first time, clear the memory of the integrated garage door opener (Y page 308).

X Turn the SmartKey to position 2 in the

ignition lock.

X Press and hold one of transmitter

buttons ; to ? on the integrated garage door opener. Indicator lamp : starts to flash yellow after a short period.

i Indicator lamp : flashes yellow

immediately after the transmitter button has been stored for the first time. If the transmitter button has already been programmed, indicator lamp : does not flash yellow until 10 seconds have elapsed.

X Release the transmitter button. X Point transmitter button B of garage door remote control A towards the transmitter buttons on the rear-view mirror at a distance of 2 to 8 inches (5 to 20 cm).

i The distance required between garage

door remote control A and the integrated garage door opener depends on the system of the garage door drive. You might require several attempts. You should test every position for at least 25 seconds before trying another position.

X Press and hold transmitter button B on

garage door remote control A until indicator lamp : lights up green. Programming is complete if indicator lamp : lights up or flashes green.

X Release transmitter button ;, = or ? on the integrated garage door opener and the transmitter button on garage door remote control B.

If indicator lamp : lights up red:

X Repeat the programming procedure for the transmitter button. When doing so, vary the distance between the garage door remote control and the rear-view mirror.

i If the indicator lamp flashes green after successful programming, the garage door system is operating on a rolling code. After programming, you must synchronize the garage door opener integrated in the rear- view mirror with the receiver of the garage door system.

Synchronizing the rolling code

Your vehicle must be within range of the garage or gate opener drive. Make sure that neither your vehicle nor any persons/objects are present within the sweep of the door or gate.

Observe the safety notes when performing the rolling code synchronization.

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307

X Turn the SmartKey to position 2 in the

ignition lock.

X Press the programming button of the door

or gate drive (see the door or gate drive operating instructions, e.g. under "Programming of additional remote controls").

i You now normally have 30 seconds to

X Repeat this sequence on transmitter button B of the garage door remote control until indicator lamp : is green. Repeat the process if indicator lamp : turns red.

X Continue with the other programming

steps (see above).

initiate the next step.

Problems when programming

X Press the previously programmed

transmitter button of the HomeLink® integrated garage door opener repeatedly in succession until the door opens. The rolling code synchronization is then complete.

Notes on programming the remote

control

Canadian radio frequency laws require a "break" (or interruption) of the transmission signals after broadcasting for a few seconds. These signals may not therefore last long enough for the integrated garage door opener to recognize the signal during programming. Comparable with Canadian law, some U.S. garage door openers also have a built-in "interruption".

If you live in Canada or have difficulties programming the garage door opener (regardless of where you live) when using the programming steps (see above), proceed as follows:

X Press and hold one of transmitter

buttons ; to ? of the integrated garage door opener. Indicator lamp : starts to flash yellow after a short period.

X Release the transmitter button. X Press transmitter button B of the garage

door remote control and hold for two seconds, then release for two seconds, then press again and hold for two seconds.

If you are experiencing problems programming the integrated garage door opener on the rear-view mirror, take note of the following instructions:

Rcheck the transmission frequency of

garage door remote control A (usually found on the reverse side of the remote control).

The integrated garage door opener is compatible with devices that can be operated with units in a frequency range of 280 to 390 MHz.

Rchange the batteries in garage door remote

control A. This increases the probability that garage door remote control A will send a strong and precise signal to the integrated garage door opener on the rear- view mirror.

Rwhen programming, hold garage door

remote control A at different distances and angles from the transmitter button that you are programming. Try different angles at a distance between 2 and 12 inches (5
to 30 cm) or the same angle at varying distances.

Rif another remote control for the same

garage door drive is available, repeat the same programming steps with this remote control. Before you perform the steps of the operation, make sure that there are new batteries in the garage door remote control.

Rnote that some remote controls only

transmit for a limited amount of time (the indicator lamp on the remote control goes

308 Features

out). Press the remote control button again before it stops transmitting.

Compass

Ralign the antenna cable of the garage door

Calling up the compass

opener unit. This can improve signal reception/transmission.

Information on operating the compass can be found in the separate COMAND operating instructions.

Opening/closing the garage door

Once programmed, the integrated garage door opener will assume the function of the garage door system's remote control. Please also read the operating instructions for the garage door system.

X Turn the SmartKey to position 2 in the

ignition lock.

X Press transmitter button ;, = or ? in the

overhead control panel that you have programmed to operate the garage door. Garage door system with a fixed code: indicator lamp : lights up green.

Floormats

G WARNING Whenever you are using a floormat, make sure there is enough clearance and that the floormat is securely fastened.

The floormat should always be securely fastened using the fastening equipment.

Before driving off, check that the floormat is securely in place and adjust it if necessary. A loose floormat could slip and hinder proper functioning of the pedals.

Garage door system with a rolling code: indicator lamp : flashes green.

Do not place several floormats on top of each other as this may impair pedal movement.

i The transmitter will transmit a signal for as long as the transmitter button is being pressed. After a maximum of ten seconds, transmission is terminated and indicator lamp : flashes yellow. Press the transmitter button again, if necessary.

Clearing the memory of the integrated

garage door opener on the rear-view

mirror

X Turn the SmartKey to position 2 in the

ignition lock.

X Press transmitter buttons ; and ?.

The indicator lamp lights up yellow.

X Press and hold transmitter buttons ;

and ? until the indicator lamp turns green.

i Make sure that you clear the memory of the integrated garage door opener before selling the vehicle.

Floormat on the driver's side (example)

X Driver's seat/front-passenger seat:

slide the respective seat back.

X Rear seats: slide the respective seat

forwards.

X To install: place the floormat in the

footwell.

X Press studs : onto retainers ;.

X To remove: pull the floormat off

retainers ;.

X Remove the floormat.

Infrared reflective windshield

The infrared reflecting glass prevents the vehicle interior from becoming too hot. It also blocks radio waves up into the gigahertz range.

In order to operate radio-controlled equipment, e.g. toll recording systems, areas : on the windshield are permeable to radio waves. In these areas, you can install radio-controlled systems.

These areas can best be seen from outside the vehicle by observing the light reflected off the windshield.

Features

309

310

Useful information ............................ 312

Engine compartment ........................ 312

Maintenance ...................................... 317

Care .................................................... 318

311

312 Engine compartment

Useful information

i This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences are possible. Please note that your vehicle may not be equipped with all features described. This also applies to safety- related systems and functions.

i Please read the information on qualified

specialist workshops (Y page 25).

Engine compartment

Hood

Opening the hood

G WARNING Do not pull the release lever while the vehicle is in motion. Otherwise, the hood could be forced open by passing air flow.

This could cause the hood to come loose and injure you and/or others.

G WARNING Do not open the hood when the engine is overheated. You could be seriously injured. Observe the coolant temperature display to determine whether the engine may be overheated. If you see flames or smoke coming from the engine compartment, move away from the vehicle. Wait until the engine has cooled. If necessary, call the fire department.

G WARNING There is a risk of injury if the hood is open, even if the engine is not running.

Some engine components can become very hot.

To avoid the risk of burns, only touch those components described in the Operator's Manual and observe the relevant safety notes.

G WARNING To help prevent personal injury, stay clear of moving parts when the hood is open and the engine is running.

The radiator fan may continue to run for approximately 30 seconds or may even restart after the engine has been turned off. Stay clear of fan blades.

G WARNING Vehicles with gasoline engine: The engine is equipped with a transistorized ignition system. Because of the high voltage it is dangerous to touch any components (ignition coils, spark plug sockets, diagnostic socket) of the ignition system

Rwith the engine running

Rwhile starting the engine

Rwhen the ignition is switched on and the

engine is turned manually

G WARNING Vehicles with diesel engine: The engine is equipped with a high-voltage electronic control unit for the injection system. Because of the high voltage it is dangerous to touch any components of the injection system (injectors, electrical wires)

Rwith the engine running

Rwhile starting the engine

Rwhen the ignition is switched on

X Make sure that the windshield wipers are

switched off.

G WARNING The windshield wipers and wiper linkage could be set in motion.

When the hood is open, you or others could be injured by the wiper linkage.

Make sure that the windshield wipers are switched off. Remove the SmartKey or make sure that no ignition position has been selected with KEYLESS-GO. All indicator lamps must be off in the instrument cluster.

Engine compartment

313

otherwise come loose while the vehicle is in motion and injure you and/or others.

X Lower the hood and let it fall from a height

of approximately 8 inches (20 cm).

X Check that the hood has engaged properly. If the hood can be raised slightly, it is not properly engaged. Open it again and close it with a little more force.

Radiator

i Vehicles with a diesel engine: do not

cover the radiator, for example with a winter front or bug cover. The readings of the on-board-diagnostic system may otherwise be inaccurate. Some of these readings are required by law and must be accurate at all times.

Engine oil

Notes on the oil level

Depending on the driving style, the vehicle consumes up to 0.9 US qts. (0.8 l) of oil over a distance of 600 miles (1000 km). The oil consumption may be higher than this when the vehicle is new or if you frequently drive at high engine speeds.

Checking the oil level using the oil

dipstick

Example: vehicles with a gasoline engine

X Pull release lever : for the hood.

The hood is released.

! Make sure that the windshield wipers are not folded away from the windshield. You could otherwise damage the windshield wipers or the hood.

X Reach into the gap, pull hood catch

handle ; up and lift the hood.

Once you have lifted the hood about 15 inches (40 cm), it is automatically opened the rest of the way and held open by the gas-filled struts.

Closing the hood

G WARNING When closing the hood, use extreme caution not to catch hands or fingers. Be careful that you do not close the hood on anyone.

Make sure the hood is securely engaged before driving off. Do not continue driving if the hood can no longer engage after an accident, for example. The hood could

314 Engine compartment

Example: vehicles with a diesel engine

X Park the vehicle on a level surface.

To check the oil level with the engine at operating temperature, switch the engine off and wait for approximately five minutes. X Pull oil dipstick : out of the dipstick guide

tube.

X Wipe off oil dipstick :. X Slowly slide oil dipstick : into the guide

tube to the stop, and take it out again. If the level is between MIN mark = and MAX mark ;, the oil level is correct.

X If the fuel level has sunk to MIN mark = or below, add 0.55 to 1.1 US qt (0.5 to 1.0 l) engine oil.

Adding engine oil

G WARNING If engine oil comes into contact with hot engine parts, it may ignite and you could burn yourself. Do not spill any engine oil on hot engine parts.

H Environmental note When adding oil, take care not to spill any. If oil enters the soil or waterways, it is harmful to the environment.

! Use only engine oils and oil filters that

have been approved for vehicles equipped with a service system. A list of the engine oils and oil filters tested and approved in accordance with the Mercedes-Benz Specifications for Service Products can be

called up by visiting http:// www.mbusa.com (USA only). More information about tested and approved engine oils and oil filters is available from any authorized Mercedes-Benz Center.

Damage to the engine or exhaust system is caused by the following:

Rusing engine oils and oil filters which

have not been specifically approved for the service system.

Rreplacing the engine oil or oil filter after the replacement interval required by the service system has elapsed

Rusing engine oil additives.

! Do not add too much oil. If the oil level is above the "max" mark on the dipstick, too much oil has been added. This can lead to damage to the engine or the catalytic converter. Have excess oil siphoned off.

Example: engine oil cap

X Turn cap : counterclockwise and remove

it.

X Add engine oil.

If the oil level is at or below the MIN mark on the oil dipstick, add 0.55 to 1.1 US qt (0.5 to 1.0 l) engine oil.

X Replace cap : on the filler neck and turn

clockwise. Ensure that the cap locks into place securely.

X Check the oil level again with the oil

dipstick (Y page 313).

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315

Further information on engine oil (Y page 388).

Checking and adding other service

products

Checking the coolant level

Only check the coolant level when the vehicle is on a level surface and the engine has cooled down.

X Turn the SmartKey to position

2 (Y page 139) in the ignition lock.

On vehicles with KEYLESS-GO, press the Start/Stop button twice (Y page 139).

X Check the coolant temperature gauge in

the multifunction display. The coolant temperature must be below 158 ‡ (70 †).

G WARNING In order to avoid any potentially serious burns:

Ruse extreme caution when opening the hood if there are any signs of steam or coolant leaking from the cooling system, or if the coolant temperature display indicates that the coolant is overheated.

X Slowly turn cap : half a turn counter- clockwise and allow excess pressure to escape.

X Turn cap : further counter-clockwise and

remove it. If the coolant is at the level of marker bar = in the filler neck when cold, there is enough coolant in coolant expansion tank ;.

If the coolant is approximately 0.6 in (1.5 cm) above marker bar = in the filler neck when warm, there is enough coolant in coolant expansion tank ;.

X If necessary, add coolant that has been tested and approved by Mercedes-Benz.

X Replace cap : and turn it clockwise as far

Rdo not remove the pressure cap on the

as it will go.

coolant reservoir if the coolant temperature is above 158 ‡ (70 †). Allow the engine to cool down before removing the cap. The coolant reservoir contains hot fluid and is under pressure.

Rusing a rag, slowly turn the cap

approximately 1/2 turn to relieve excess pressure. If opened immediately, scalding hot fluid and steam will be blown out under pressure.

Rdo not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn if it comes into contact with hot engine parts.

For further information on coolant, see (Y page 389).

Windshield washer system and

headlamp cleaning system

The washer fluid reservoir is used for both the windshield washer system and the headlamp cleaning system.

i Vehicle components and their service

products must match. You should, therefore, only use products that have been tested and approved by Mercedes-Benz.

Information on tested and approved products can be obtained at any authorized Mercedes-Benz Center or on the Internet at http://www.mbusa.com (USA only).

316 Engine compartment

G WARNING Washer solvent/antifreeze is highly flammable. Do not spill washer solvent/ antifreeze on hot engine parts, because it may ignite and burn. You could be seriously burned.

! At temperatures below freezing: always fill the washer fluid reservoir with a mix of water and windshield washer concentrate (e.g. MB WinterFit). There is otherwise a risk of damaging the windshield washer system/headlamp cleaning system.

! Only use washer fluid concentrate which

is suitable for plastic lenses. Unsuitable washer fluid concentrate could damage the plastic lenses of the headlamps.

! Do not add distilled or de-ionized water to the washer fluid container. Otherwise, the level sensor may be damaged.

i Add windshield washer concentrate, e.g. MB SummerFit, to the washer fluid all year round.

outside temperature. For information on the mixing ratio (Y page 390).

X To open: pull cap : upwards by the tab.

X Add the premixed washer fluid. X To close: press cap : onto the filler neck

until it engages.

Brake fluid level

! If you notice that the brake fluid level in the brake fluid reservoir has fallen to the MIN mark or less, check the brake system immediately for leaks. Also check the thickness of the brake linings. Contact a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center immediately.

Do not add brake fluid. This does not correct the error.

Only check the brake fluid level when the vehicle is stationary and on a level surface.

In order to check the brake fluid level, the cover above the brake fluid reservoir must be removed.

X Remove seal ; in the area around

cover : in the direction of the arrow.

Example: washer fluid reservoir

X Mix the windshield washer fluid in a

container beforehand.

X At temperatures above freezing: fill the washer fluid reservoir with a mix of water and windshield washer concentrate (e.g. MB SummerFit).

X At temperatures below freezing: fill the washer fluid reservoir with a mix of water and windshield washer concentrate (e.g. MB WinterFit). Adapt the mixing ratio to the

Maintenance 317

Due in .. Days

The multifunction display shows a service message for several seconds, e.g.: Next Service A Service A Due Service A Exceeded by ... Days The letter indicates which service is due. A stands for a minor service and B for a major service. A number or another letter may be displayed after the letter. This figure indicates any necessary additional maintenance work to be performed.

You can obtain further information from an authorized Mercedes-Benz Center.

The service interval display does not take into account any periods of time during which the battery is disconnected.

Maintaining the time-dependent service schedule:

X Note down the service due date displayed

in the multifunction display before disconnecting the battery.

or

X Subtract the battery disconnection periods from the service date shown on the display after reconnecting the battery.

i The service interval display does not provide any information regarding the engine's oil level. Observe the notes on the engine oil level (Y page 313).

Hiding a service message

X Raise cover : at the front. X Pull out cover : in the direction of the

arrow.

The brake fluid level is correct if it is between MIN marking ? and MAX marking = on the brake fluid reservoir. Cover : is installed in the reverse order. When doing so, make sure that the guides of cover : engage in the slots in the bulkhead.

Maintenance

X Press the % or a button on the

Service interval display

Service messages

Information on the type of service and service intervals (see separate Service Booklet).

You can obtain further information from an authorized Mercedes-Benz Center or at http://www.mbusa.com (USA only).

The service interval message informs you of the next service due date.

steering wheel.

Displaying service messages

X Switch on the ignition. X Press = or ; on the steering wheel

to select the Serv. menu.

X Press 9 or : to select the ASSYST

PLUS submenu and press a to confirm. The service due date appears in the multifunction display.

318 Care

Please bear the following in mind

! For cleaning your vehicle, do not use any

Resetting the service interval display

A qualified specialist workshop, e.g. an authorized Mercedes-Benz Center, will reset the service interval display after the necessary service work has been carried out.

Further information, on maintenance for example, can be obtained at an authorized Mercedes-Benz Center or directly from Mercedes-Benz.

! If the service interval display has been

reset unintentionally, have the setting corrected at a Mercedes-Benz Center.

Have service work carried out as described in the Service Booklet. This may otherwise lead to increased wear and damage to the major assemblies or the vehicle.

Driving abroad

An extensive Mercedes-Benz Service network is also available in other countries. You can obtain further information from any authorized Mercedes-Benz Center.

Care

Notes on care

of the following:

Rdry, rough or hard cloths

Rabrasive cleaning agents

Rsolvents

Rcleaning agents containing solvents

Do not scrub.

Do not touch the surfaces or protective films with hard objects, e.g. a ring or ice scraper. You could otherwise scratch or damage the surfaces and protective film.

H Environmental note Dispose of empty packaging and cleaning cloths in an environmentally responsible manner.

! Do not park the vehicle for an extended period straight after cleaning it, particularly after having cleaned the wheels with wheel cleaner. Wheel cleaners could cause increased corrosion of the brake discs and brake pads/linings. For this reason, you should drive for a few minutes after cleaning. Braking heats the brake discs and the brake pads/linings, thus drying them. The vehicle can then be parked.

Regular care of your vehicle is a condition for retaining the quality in the long term.

Use care products and cleaning agents recommended and approved by Mercedes- Benz.

G WARNING Many cleaning products can be hazardous. Some are poisonous, others are flammable. Always follow the instructions on the particular container. Always open your vehicle's doors or windows when cleaning the inside.

Never use fluids or solvents that are not designed for cleaning your vehicle.

Always lock away cleaning products and keep them out of reach of children.

Exterior care

Automatic car wash

G WARNING Braking efficiency is reduced after washing the vehicle. This could cause an accident. For this reason, you must drive particularly carefully after washing the vehicle until the brakes have dried.

You can wash the vehicle in an automatic car wash from the very start.

! Never clean your vehicle in a Touchless Automatic Car Wash as these use special cleaning agents. These cleaning agents can damage the paintwork or plastic parts.

Care 319

If the vehicle is very dirty, pre-wash it before cleaning it in an automatic car wash.

! In car washes with a towing mechanism, make sure that the automatic transmission is in transmission position N, otherwise the vehicle could be damaged.

Rthe side windows and the sliding sunroof

are fully closed.

Rthe ventilation/heating is switched off

(the OFF button has been pressed).

Rthe windshield wiper switch is in position

0.

RVehicles with a SmartKey:

Otherwise, the vehicle might be damaged.

Do not remove the SmartKey from the ignition lock. Do not open the driver's door or front-passenger door when the engine is switched off. Otherwise, the automatic transmission selects park position P automatically and locks the wheels. You can prevent this by shifting the automatic transmission to N beforehand.

RVehicles with KEYLESS-GO:

Do not open the driver's door or front- passenger door when the engine is switched off. Otherwise, the automatic transmission selects park position P automatically and locks the wheels.

Observe the following to make sure that the automatic transmission stays in position N:

X Make sure the vehicle is stationary and the

ignition is switched off.

X Turn the SmartKey to position

2 (Y page 139) in the ignition lock. Use the SmartKey instead of the Start/ Stop button on vehicles with KEYLESS-GO.

X Depress and hold the brake pedal.

X Shift the automatic transmission to

position N.

X Release the brake pedal.

X Release the electric parking brake.

X Switch off the ignition and leave the

SmartKey in the ignition lock.

After using an automatic car wash, wipe off wax from the windshield and the wiper blades. This will prevent smears and reduce wiping noises caused by residue on the windshield.

Washing by hand

In some countries, washing by hand is only allowed at specially equipped washing bays. Observe the legal requirements in all countries concerned.

X Do not use hot water and do not wash the

vehicle in direct sunlight.

X Use a soft sponge to clean.

X Use a mild cleaning agent, such as a car

shampoo approved by Mercedes-Benz.

X Thoroughly hose down the vehicle with a

gentle jet of water.

X Do not point the water jet directly towards

the air inlet.

X Use plenty of water and rinse out the

sponge frequently.

X Rinse the vehicle with clean water and dry

thoroughly with a chamois.

X Do not let the cleaning agent dry on the

paintwork.

When using the vehicle in winter, remove all traces of road salt deposits carefully and as soon as possible.

! Make sure that:

Power washers

G WARNING Do not use power washers with circular-jet nozzles (dirt grinders) to clean your vehicle, in particular the tires. You could otherwise damage the tires and cause an accident.

320 Care

! Always maintain a distance of at least

X Remove impurities immediately, where

11.8 in (30 cm) between the vehicle and the power washer nozzle. Information about the correct distance is available from the equipment manufacturer.

Move the power washer nozzle around when cleaning your vehicle.

Do not aim directly at any of the following:

Rtires

Rdoor gaps, roof gaps, joints etc.

Relectrical components

Rbattery

Rconnectors

Rlights

Rseals

Rtrim elements

Rventilation slots

Damaged seals or electrical components can lead to leaks or failures.

Cleaning the wheels

! Do not use acidic wheel cleaning products to remove brake dust. This could damage wheel bolts and brake components.

! Do not park the vehicle for an extended period straight after cleaning it, particularly after having cleaned the wheels with wheel cleaner. Wheel cleaners could cause increased corrosion of the brake discs and brake pads/linings. For this reason, you should drive for a few minutes after cleaning. Braking heats the brake discs and the brake pads/linings, thus drying them. The vehicle can then be parked.

Cleaning the paintwork

Scratches, corrosive deposits, areas affected by corrosion and damage caused by inadequate care cannot always be completely repaired. In such cases, visit a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.

possible, whilst avoiding rubbing too hard.

X Soak insect remains with insect remover

and rinse off the treated areas afterwards.

X Soak bird droppings with water and rinse

off the treated areas afterwards.

X Remove coolant, brake fluid, tree resin, oils, fuels and greases by rubbing gently with a cloth soaked in petroleum ether or lighter fluid.

X Use tar remover to remove tar stains.

X Use silicone remover to remove wax.

! Do not affix:

Rstickers

Rfilms

Rmagnetic plates or similar items

to painted surfaces. You could otherwise damage the paintwork.

If water no longer forms "beads" on the paint surface, use the paint care products recommended and approved by Mercedes- Benz. This is the case approximately every three to five months, depending on the climate conditions and the care product used.

If dirt has penetrated the paint surface or the paint has become dull, the paint cleaner recommended and approved by Mercedes- Benz should be used.

Do not use these care products in the sun or on the hood while the hood is hot.

X Use a suitable touch-up stick, e.g. MB

Touch-Up Stick, to correct smaller areas of paint damage quickly and provisionally.

Matte finish care

If your vehicle has a clear matte finish, observe the following instructions in order to avoid damage to the paintwork due to incorrect care.

These notes also apply to light alloy wheels with a clear matte finish.

Care 321

! Never polish the vehicle or the light alloy

! Do not use dry cloths, abrasive products,

wheels. Polishing causes the finish to shine.

! The following may cause the paint to

become shiny and thus reduce the matte effect:

RVigorous rubbing with unsuitable

materials.

RFrequent use of car washes.

RWashing the vehicle in direct sunlight.

! Never use paint cleaner, buffing or

polishing products, or gloss preserver, e.g. wax. These products are only suitable for high-gloss surfaces. Their use on vehicles with matte finish leads to considerable surface damage (shiny, spotted areas).

Always have paintwork repairs performed at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.

! Do not use wash programs with a hot wax

treatment under any circumstances.

i The vehicle should preferably be washed by hand using a soft sponge, car shampoo and plenty of water.

solvents or cleaning agents containing solvents to clean the inside of the windows. Do not touch the insides of the windows with hard objects, e.g. an ice scraper or ring. There is otherwise a risk of damaging the windows.

! Clean the water drainage channels of the windshield and the rear window at regular intervals. Deposits such as leaves, petals and pollen may under certain circumstances prevent water from draining away. This can lead to corrosion damage and damage to electronic components.

Cleaning the wiper blades

G WARNING Before cleaning the windshield or wiper blades, switch off the windshield wipers and remove the SmartKey from the ignition lock. On vehicles with KEYLESS-GO, press the Start/Stop button repeatedly until all indicator lamps in the instrument cluster have gone out. The windshield wipers could otherwise move and injure you.

i Use only insect remover and car shampoo

! Do not pull the wiper blade. Otherwise,

from the range of recommended and approved Mercedes-Benz care products.

Cleaning the windows

G WARNING Before cleaning the windshield or wiper blades, switch off the windshield wipers and remove the SmartKey from the ignition lock. On vehicles with KEYLESS-GO, press the Start/Stop button repeatedly until all indicator lamps in the instrument cluster have gone out. The windshield wipers could otherwise move and injure you.

X Clean the inside and outside of the

windows with a damp cloth and a cleaning agent that is recommended and approved by Mercedes-Benz.

the wiper blade could be damaged.

! Do not clean wiper blades too often and do not rub them too hard. Otherwise, the graphite coating could be damaged. This could cause wiper noise.

X Fold the wiper arms away from the

windshield.

X Carefully clean the wiper blades with a

damp cloth.

X Fold the windshield wipers back again

before switching on the ignition.

! Hold the wiper arm securely when folding back. The windshield could be damaged if the wiper arm smacks against it suddenly.

322 Care

Cleaning the exterior lighting

Cleaning the rear view camera

X Clean the plastic lenses of the exterior

lights with a wet sponge and a mild cleaning agent, e.g. Mercedes-Benz car shampoo or cleaning cloths.

! Only use cleaning agents or cleaning

cloths which are suitable for plastic light lenses. Unsuitable cleaning agents or cleaning cloths could scratch or damage the plastic light lenses.

Cleaning the sensors

X Use clear water and a soft cloth to clean