2010 Mercedes-benz M Class Owners Manual

b Foglamp Rear Left

Possible causes/consequences and M Solutions The left or right front parking lamp is malfunctioning. A substitute bulb is being used. X Replace the bulb as soon as possible (Y page 311).

The left or right high-beam lamp is malfunctioning. X Halogen headlamp: Replace the bulb as soon as possible

(Y page 311).

X Bi-Xenon headlamp: Contact an authorized Mercedes-

Benz Center as soon as possible.

The left or right license plate lamp is malfunctioning. X Replace the bulb as soon as possible (Y page 311).

The light sensor is malfunctioning. The headlamps come on automatically. X Contact an authorized Mercedes-Benz Center as soon as

possible.

To switch off the headlamps (U.S. vehicles only): X In the control system, set daytime running lamp mode to

X Switch off the headlamps using the exterior lamp switch

manual (Y page 133).

(Y page 93).

The left or right low-beam lamp is malfunctioning. X Halogen headlamp: Replace the bulb as soon as possible

(Y page 311).

X Bi-Xenon headlamp: Contact an authorized Mercedes-

Benz Center as soon as possible.

The rear fog lamp is malfunctioning. Rear lamps with LEDs: A substitute bulb is being used. X Replace the bulb as soon as possible (Y page 311).

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Vehicle status messages in the multifunction display

295

Display messages b Switch

Possible causes/consequences and M Solutions

Off Lights You have removed the SmartKey from the starter switch, opened the driver’s door and left the headlamps on or removed the SmartKey with KEYLESS-GO from the vehicle and left the headlamps on. X Turn the exterior lamp switch to $ or Ã

b Tail Lamp Left orTail Lamp Right

(Y page 93).

or X With the rear fog lamp switched on: Push in the exterior

lamp switch to its stop.

The left or right tail lamp is malfunctioning. Rear lamps with bulbs: A substitute bulb is being used. Rear lamps with LEDs: This message will only appear if all LEDs have stopped working. X Rear lamps with bulbs: Replace the bulb as soon as

possible (Y page 311).

X Rear lamps with LEDs: Contact an authorized Mercedes-

Benz Center as soon as possible.

possible.

The left or right corner-illuminating front fog lamp is malfunctioning. X Contact an authorized Mercedes-Benz Center as soon as

b Cornering Lamp Left orCornering Lamp Right b Trailer Brake Lamp The left or right trailer brake lamp is malfunctioning. X Replace the bulb as soon as possible. b Trailer The left or right trailer tail lamp is malfunctioning. Tail Lamp Left X Replace the bulb as soon as possible. orTrailer Tail Lamp Right b Trailer Turn Signal Left orTrailer Turn Signal Right

The left or right trailer turn signal lamp is malfunctioning. X Replace the bulb as soon as possible.

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296 Vehicle status messages in the multifunction display

Display messages b Turn Signal Rear Left orTurn Signal Rear Right b Turn Signal Front Left orTurn Signal Front Right b Turn Signal Left Mirror orTurn Signal Right Mirror

Tires

Display messages h Tire pressure(s ) Please Correct

h Tire Pressure Caution: Tire Defect

Possible causes/consequences and M Solutions The left or right rear turn signal lamp is malfunctioning. A substitute bulb is being used. X Rear lamps with bulbs: Replace the bulb as soon as

possible (Y page 311).

X Rear lamps with LEDs: Contact an authorized Mercedes-

Benz Center as soon as possible.

The left or right front turn signal lamp is malfunctioning. A substitute bulb is being used. X Replace the bulb as soon as possible (Y page 311).

The turn signal in the left or right exterior rear view mirror is malfunctioning. This message will only appear if all LEDs have stopped working. X Contact an authorized Mercedes-Benz Center as soon as

possible.

Possible causes/consequences and M Solutions The tire inflation pressure is too low in at least one tire. or The tire inflation pressure of the individual tires differ from each other significantly. X Check and correct tire inflation pressure as required

(Y page 221).

At least one tire is deflating. X Carefully bring the vehicle to a halt, avoiding abrupt

steering and braking maneuvers.

X If necessary, change the wheel (Y page 319).

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Display messages h Tire Pressure Check Tires

Possible causes/consequences and M Solutions The tire inflation pressure in at least one tire is significantly below the reference value. X Carefully bring the vehicle to a halt, avoiding abrupt

steering and braking maneuvers.

X Check and adjust tire inflation pressure as required. X If necessary, change the wheel (Y page 319).

G Warning! Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You may lose control of the vehicle. Continued driving with a flat tire will cause excessive heat build-up and possibly a fire.

G Warning! 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.

What to do if … Lamps in instrument cluster Notes If any of the following lamps in the instrument cluster fails to come on during the bulb self- check when switching on the ignition, have the respective bulb checked and replaced if necessary.

When you switch on the ignition, all lamps (except low-beam headlamp indicator lamp, high-beam headlamp indicator lamp, and turn signal indicator lamps unless activated) in the instrument cluster come on. If a lamp in the instrument cluster fails to come on when the ignition is switched on, have it checked and replaced if necessary.

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Brake

Problem ! The yellow ABS indicator lamp comes on while the engine is running.

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Possible causes/consequences and M Solutions The ABS has detected a malfunction and switched off. The BAS, the ESP® and the PRE-SAFE® are also switched off. The brake system is still functioning normally but without the systems specified above available. If the ABS control unit is malfunctioning, other systems such as the navigation system or the automatic transmission may also be malfunctioning. X Continue driving with added caution. Wheels may lock during

hard braking, reducing steering capability.

X Read and observe messages that may appear in the

multifunction display (Y page 272).

X Have the system checked at an authorized Mercedes-Benz

Center as soon as possible.

Failure to follow these instructions increases the risk of an accident. The ABS has switched off due to insufficient power supply. The battery might not be charged sufficiently. When the voltage is above the required value again, the ABS is operational again. The ABS indicator lamp should go out. X If the ABS indicator lamp does not go out: Have the alternator

and the battery checked.

The self-diagnosis has not been completed yet. The indicator lamp will go out after driving a short distance at a vehicle speed of above 12 mph (20 km/h).

! The yellow ABS indicator lamp comes on while the engine is running.

! The yellow ABS indicator lamp comes on while the engine is running.

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Problem $ (USA only) J (Canada only) The red brake warning lamp comes on while driving. In addition, the yellow ABS malfunction indicator lamp, and the yellow ESP® warning lamp come on and an acoustic warning sounds. $ (USA only) J (Canada only) The red brake warning lamp comes on while driving and an acoustic warning sounds. $ (USA only) J (Canada only) The red brake warning lamp comes on while the engine is running and an acoustic warning sounds.

What to do if … 299

Possible causes/consequences and M Solutions The Electronic Brake Proportioning (EBP) switched off due to a malfunction. The ABS, the BAS, the ESP® and PRE-SAFE® are also switched off. X Have the system checked at an authorized Mercedes-Benz

Center as soon as possible.

Failure to follow these instructions increases the risk of an accident.

You are driving with the parking brake engaged. X Release the parking brake.

There is insufficient brake fluid in the reservoir. Risk of accident! X Do not drive any further. Stop the vehicle in a safe location as

soon as it is safe to do so. X Engage the parking brake. X Read and observe messages that may appear in the

multifunction display (Y page 272).

X Contact an authorized Mercedes-Benz Center. Do not add brake fluid! This will not solve the problem.

G Warning! Driving with the brake warning lamp illuminated can result in an accident. Have your brake system checked immediately if the brake warning lamp stays on. Do not add brake fluid before checking the brake system. Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts and

the brake fluid catching fire. You can be seriously burned.

! If you find that the brake fluid in the brake

fluid reservoir has fallen to the minimum mark or below, have the brake system checked for brake pad thickness and leaks.

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Safety systems

Problem 7 The red seat belt

telltale comes on for a maximum of 6 seconds after starting the engine.

7 The red seat belt

telltale comes on. In addition you hear a warning chime for a maximum of 6 seconds after starting the engine.

7 The red seat belt

telltale comes on while the vehicle is standing still and the engine is running or while driving.

7 The red seat belt

telltale flashes while driving. In addition, an intermittent warning chime sounds with increasing intensity.

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Possible causes/consequences and M Solutions The seat belt telltale reminds you and your passengers to fasten your seat belts before driving off. X Fasten your seat belts. Regardless of whether the seat belts are fastened or not, the seat belt telltale always comes on and remains lit for 6 seconds after starting the engine.

You have forgotten to fasten your seat belt. X Fasten your seat belt.

The warning chime stops sounding.

You and/or your front passenger have forgotten to fasten your seat belts. X Fasten your seat belts.

The seat belt telltale goes out.

There are items placed on the front passenger seat and therefore the system senses the front passenger seat as being occupied. X Remove the items from the front passenger seat and put them

in a safe place. The seat belt telltale goes out.

The vehicle’s speed once exceeded 15 mph (25 km/h) and you and/or your front passenger have forgotten to fasten your seat belts. X Fasten your seat belts.

The seat belt telltale goes out and the warning chime stops sounding.

There are items placed on the front passenger seat and therefore the system senses the front passenger seat as being occupied. X Remove the items from the front passenger seat and put them

in a safe place. The seat belt telltale goes out and the warning chime stops sounding.

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i After 60 seconds with an unfastened seat belt the warning chime stops sounding and the seat belt telltale illuminates continuously. The seat belt telltale will only go out if both, the driver and front passenger’s seat belt are fastened, or the vehicle is standing still and a front door is opened. Problem + The red SRS

Possible causes/consequences and M Solutions There is a malfunction in the restraint systems. The air bags or Emergency Tensioning Devices (ETDs) could deploy unexpectedly or fail to activate in an accident. X Drive with added caution to the nearest authorized Mercedes-

indicator lamp comes on while driving.

Benz Center.

G Warning! In the event a malfunction of the SRS is indicated as outlined above, the SRS may not be operational. For your safety, we strongly recommend that you contact an authorized Mercedes-Benz

Center immediately to have the system checked. Otherwise the SRS may not be activated when needed in an accident, which could result in serious or fatal injury, or it might deploy unexpectedly and unnecessarily which could also result in injury.

Problem d The yellow ESP®

warning lamp comes on while the engine is running.

d The yellow ESP®

warning lamp comes on while the engine is running.

Possible causes/consequences and M Solutions The ESP® has been switched off. Risk of accident! When the ESP® is switched off it will not stabilize the vehicle if the system recognizes that the vehicle starts to skid or that a wheel is spinning. X Switch the ESP® back on. Exceptions: (Y page 64).

X If leaving the ESP® switched off, adapt your speed and driving

to the prevailing road and weather conditions.

X If the ESP® cannot be switched back on: Have the system

checked at an authorized Mercedes-Benz Center as soon as possible.

The ESP® is not operational due to a malfunction. Risk of accident! X Read and observe additional messages that may appear in the

multifunction display.

X Continue driving with added caution. X Adapt your speed and driving to the prevailing road and weather

conditions.

X Have the system checked at an authorized Mercedes-Benz

Center as soon as possible.

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Problem d The yellow ESP®

warning lamp flashes while driving.

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Possible causes/consequences and M Solutions The ESP® or the ETS/4-ETS has come into operation because of detected traction loss in at least one tire. The cruise control is deactivated. X When driving off, apply as little throttle as possible. X While driving, ease up on the accelerator pedal. X Adapt your speed and driving to the prevailing road and weather

conditions.

X Do not deactivate the ESP®.

Exceptions: (Y page 64).

Failure to follow these instructions increases the risk of an accident. At least one wheel is spinning and the Electronic Traction System (ETS/4-ETS) has switched off to prevent overheating of the drive wheel brakes. X Read and observe additional messages that may appear in the

multifunction display.

As soon as the brakes have cooled off, the Electronic Traction System (ETS/4-ETS) switches on again. The message in the multifunction display disappears and the ESP® warning lamp d goes out.

Driving systems

Problem · The red distance

warning lamp comes on while driving.

Possible causes/consequences and M Solutions You are too close to the vehicle in front of you to maintain selected speed. X Apply the brakes immediately to increase the following

distance.

· The red distance

warning lamp comes on while driving and an acoustic warning sounds.

You are gaining too rapidly on the vehicle ahead of you or the distance warning system has recognized a stationary obstacle on your probable line of travel. X Apply the brakes immediately. X Carefully observe the traffic situation. You may need to brake

or maneuver to avoid hitting an obstacle.

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Vehicle

Problem The yellow fuel tank reserve warning lamp in the fuel gauge comes on while driving.

Engine

Problem ! (USA only) ; (Canada only) The yellow engine malfunction indicator lamp comes on when the engine is running.

Possible causes/consequences and M Solutions The fuel level has gone below the reserve mark. X Refuel at the next gas station.

Possible causes/consequences and M Solutions There may be a malfunction in Rthe fuel management system Rthe ignition system Rthe emission control system Rsystems which affect emissions Such malfunctions may result in excessive emissions values and may switch the engine to limp-home (emergency operation) mode. X Have the vehicle checked as soon as possible at an authorized

Mercedes-Benz Center.

i Some states may by law require you to visit a workshop as

soon as the engine malfunction indicator lamp comes on. Check local requirements.

! (USA only) ; (Canada only) The yellow engine malfunction indicator lamp comes on when the engine is running.

A loss of pressure has been detected in the fuel system. The fuel cap may not be closed properly or the fuel system may be leaky. X Check the fuel cap (Y page 210). X If it is not closed properly: Close the fuel cap. X If it is closed properly: Have the fuel system checked by an

authorized Mercedes-Benz Center.

Diesel engine: Your fuel tank was driven empty. X After refueling, start, turn off and restart the engine three or four

times in succession. The limp-home mode is canceled. You do not need to have your vehicle checked.

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Tires

Problem h USA only:

Combination low tire pressure telltale/TPMS malfunction telltale for the Advanced TPMS illuminates continuously.

h USA only:

Combination low tire pressure telltale/TPMS malfunction telltale for the Advanced TPMS flashes 60
seconds and then stays illuminated.

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Possible causes/consequences and M Solutions The Advanced TPMS detects a loss of pressure in at least one tire. X Carefully bring the vehicle to a halt, avoiding abrupt steering and

braking maneuvers. Observe the traffic situation around you.

X Read and observe messages in the multifunction display

(Y page 272).

If the tire inflation pressure in the respective tire(s) has (have) been corrected, the combination low tire pressure/TPMS malfunction telltale goes out after a few minutes of driving.

There is a malfunction in the Advanced TPMS. X Read and observe messages in the multifunction display

(Y page 272).

Benz Center.

X Have the Advanced TPMS checked at an authorized Mercedes-

After the malfunction has been remedied, the combination low tire pressure/TPMS malfunction telltale goes out after a few minutes of driving.

G Warning! Each tire, including the spare (if provided), should be checked at least once a month when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the Tire and Loading Information placard on the driver’s door B- pillar or the tire inflation pressure label on the inside of the fuel filler flap. If your vehicle has tires of a different size than the size indicated on the Tire and Loading Information placard or the tire inflation pressure label, you should determine the proper tire inflation pressure for those tires. As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires are significantly underinflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check

your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly underinflated tire causes the tire to overheat and can lead to tire failure. Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even if underinflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale. Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately 1 minute and then remain continuously illuminated. This

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sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of incompatible replacement or alternate tires

or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly.

Possible causes/consequences and M Solutions A BabySmartTM child seat is installed on the front passenger seat. Therefore the front passenger front air bag is switched off.

The system is malfunctioning when there is no BabySmartTM child seat installed on the front passenger seat. X Have the system checked as soon as possible at an authorized

Mercedes-Benz Center.

The system is malfunctioning. X Make sure there is nothing between seat cushion and child seat. X Check installation of the child seat (Y page 58). If the front passenger front air bag off indicator lamp remains out: X Have the system checked as soon as possible at an authorized

Mercedes-Benz Center.

Do not use the BabySmartTM restraint to transport children on the front passenger seat until the system has been repaired.

The system is malfunctioning. X Have the system checked as soon as possible at an authorized

Mercedes-Benz Center.

X Read and observe messages in the multifunction display and

follow corrective steps (Y page 272).

Lamp in center console Problem Canada only: 42
The front passenger front air bag off indicator lamp illuminates and remains illuminated (Y page 47). Canada only: 42
The front passenger front air bag off indicator lamp does not illuminate or does not remain illuminated with a BabySmartTM child seat properly installed on the passenger seat. USA only: 42
The front passenger front air bag off indicator lamp illuminates and remains illuminated with the weight of a typical adult or someone larger than a small individual on the front passenger seat.

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306 Unlocking/locking manually

G Warning! If the 42 indicator lamp illuminates and remains illuminated with the weight of a typical adult or someone larger

than a small individual on the front passenger seat, do not have any passenger use the front passenger seat until the system has been repaired.

Problem USA only: 42
The front passenger front air bag off indicator lamp does not illuminate and/or does not remain illuminated with the weight of a typical 12-month-old child in a standard child restraint or less on the front passenger seat.

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

and check installation of the child seat.

X Make sure no objects applying supplemental weight onto the

seat are present.

X Make sure no objects which apply forces to the seat are present

(e.g. objects such as books, briefcases etc. lodged behind or around the seat, head restraints pushing against roof etc.). The system may recognize such forces as supplemental weight.

X If the front passenger front air bag off indicator lamp remains

out, have the system checked as soon as possible at an authorized Mercedes-Benz Center. Do not transport a child on the front passenger seat until the system has been repaired. X Read and observe messages in the multifunction display and

follow corrective steps (Y page 272).

G Warning! If the 42 indicator lamp does not illuminate or remains out with the weight of a typical 12-month-old child in a standard child restraint or less on the front passenger seat, do not transport a child on the front passenger seat until the system has been repaired.

and

Ropen the driver’s door To cancel the alarm, insert the SmartKey into the starter switch.

Removing the mechanical key

Unlocking/locking manually Unlocking the vehicle If you cannot unlock the vehicle with the SmartKey or with KEYLESS-GO, unlock the driver’s door using the mechanical key. The anti-theft alarm system will trigger when you Runlocking the driver’s door with the

mechanical key

SmartKey

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Unlocking/locking manually

307

Locking the vehicle If you cannot lock the vehicle with the SmartKey or with KEYLESS-GO, lock it as follows: X Close the front passenger door, the right

rear door, and the tailgate.

X Open the driver’s door and the rear left

door.

SmartKey with KEYLESS-GO X Move locking tab : in the direction of

arrow.

X Slide mechanical key ; out of the housing.

Unlocking the driver’s door

X Insert mechanical key ; into the driver’s

door lock.

X Turn mechanical key ; counterclockwise

to position 1.

X Pull the door handle past the resistance point until the locking knob moves up. The driver’s door is unlocked.

X Pull the door handle once more to open the

driver’s door.

X Turn mechanical key ; back and remove

it from the driver’s door lock.

X Press the central locking switch

(Y page 75). The locking knobs of the front passenger door and the rear doors move down.

X If the vehicle battery is disconnected or drained: Press down the locking knobs on the front passenger door and the rear doors.

X Exit the vehicle. X Close the driver’s door. X Enter the vehicle through the rear left door. X Press down the locking knob of the driver’s

door.

! To prevent inadvertent lockout, make

sure to have the SmartKey with you before proceeding with the next step. The next step will lock the vehicle.

X Exit the vehicle. X Close the rear left door.

The vehicle is locked.

i This procedure does not arm the anti-

theft alarm system, nor does it lock the fuel filler flap.

Unlocking and opening the tailgate If the tailgate can no longer be unlocked and opened using button F on the SmartKey or the KEYLESS-GO function, use the emergency release lever to unlock and open the tailgate. The emergency release lever is located on the inside of the tailgate.

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308 Unlocking/locking manually

A minimum height clearance of 7.2 ft (2.20 m) is required to open the tailgate.

X Remove cover ; from the trim on the

tailgate.

X Push emergency release lever : all the

way to the left.

! The tailgate swings open upwards

automatically. Always make sure there is sufficient overhead clearance.

X Open the tailgate. i If the vehicle has previously been locked

from the outside using the SmartKey or KEYLESS-GO, opening the tailgate from the inside using the emergency release lever will trigger the anti-theft alarm system. To cancel the alarm, do one of the following: RInsert the SmartKey into the starter

switch.

Fuel filler flap G Warning! HYBRID vehicles: It is imperative that you read the HYBRID Supplemental Operating Instructions included in your vehicle literature portfolio. You may otherwise not recognize potential danger. G Warning! Avoid contact with the vehicle walls as they may contain sharp edges. Otherwise, you could injure yourself while releasing the fuel filler flap. In case the central locking system does not release the fuel filler flap, you can open it manually. The fuel filler flap release is located on the passenger side in the cargo compartment behind the cover. X Open the tailgate (Y page 75). X Open the cover on the passenger-side trim

panel (Y page 316).

RPress button % or & on the

SmartKey.

In vehicles with KEYLESS-GO: RPull an outside door handle.

The SmartKey must be within 3 ft (1 m) of the vehicle.

RPress the KEYLESS-GO start/stop

button. The SmartKey must be inside the vehicle.

X Reinstall cover ;.

X Pull yellow fuel filler flap release : in

direction of arrow. The fuel filler flap is unlocked.

X Open the fuel filler flap (Y page 210). X Close the cover. X Close the tailgate.

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Resetting activated NECK-PRO active front head restraints

If the NECK-PRO active front head restraints have been triggered in a rear-end collision, they must be reset. You can tell that the NECK-PRO active front head restraints have been triggered when they have been moved forward and cannot be adjusted. G Warning! For safety reasons, have the NECK-PRO active front head restraints checked at an authorized Mercedes-Benz Center after a rear-end collision. G Warning! When pushing back the head restraint cushion, make sure your fingers do not become caught between the head restraint cushion and the cover. Failing to do so may lead to injury.

i Pressing the head restraint cushion back

requires high force. If you encounter difficulties when pushing the head restraint back, please have the procedure performed at an authorized Mercedes-Benz Center.

X Pull the top of the head restraint cushion in

direction of arrow : as far as it will go.

X Adjust the head restraint cushion

downward in direction of arrow ; as far as it will go.

Replacing SmartKey batteries

309

X Firmly press the top of the head restraint cushion towards the head restraint cover in direction of arrow = until it engages.

X Repeat this procedure on the NECK-PRO active front head restraint for the second front seat.

For information on NECK-PRO active front head restraints, see “NECK-PRO active front head restraints” (Y page 53).

Replacing SmartKey batteries

If the batteries in the SmartKey are discharged, the vehicle can no longer be locked or unlocked. It is recommended to have the batteries replaced at an authorized Mercedes-Benz Center. G Warning! Batteries contain poisonous and corrosive substances. Therefore, keep the batteries out of reach of children. If a battery is swallowed, seek medical help immediately. G Warning! SmartKey batteries contain perchlorate material, which may require special handling and regard for the environment. Check with your local government’s disposal guidelines. California residents, see www.dtsc.ca.gov/ HazardousWaste/Perchlorate/ index.cfm. Batteries contain materials that can harm the environment if disposed of improperly. Recycling of batteries is the preferred method of disposal. Many states (USA only) or provinces (Canada only) require sellers of batteries to accept old batteries for recycling. When inserting the batteries, make sure they are clean and free of lint. When replacing batteries, always replace both batteries.

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310 Replacing SmartKey batteries

i The required replacement batteries are

available at any authorized Mercedes-Benz Center.

Replacement batteries: Lithium, type CR 2025 or equivalent. X Remove the mechanical key from the

SmartKey (Y page 306).

X Slide mechanical key : back into the

SmartKey.

X Check the operation of the SmartKey.

SmartKey with KEYLESS-GO

SmartKey

X Press mechanical key ; into the SmartKey

opening until battery compartment cover : opens. Do not keep the cover shut.

X Insert mechanical key : into opening. X Press mechanical key : in direction of

arrow. Battery compartment ; is unlatched. X Pull battery compartment ; out of the

SmartKey housing.

X Remove the battery compartment cover. X Pat the SmartKey against the palm of your

hand until battery = falls out.

X Insert the new battery with the positive

terminal (+) facing up. Use a lint-free cloth. X Insert the tabs of the battery compartment cover into the housing and press the cover closed.

X Pull out batteries =. X Insert new batteries = under contact

springs ? with the positive terminal (+) side facing up.

X Return battery compartment ; into

SmartKey housing until it locks into place.

X Slide mechanical key : back into the

SmartKey.

X Check the operation of the SmartKey as

well as the KEYLESS-GO function.

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Replacing bulbs

311

Wear eye and hand protection. Because of high voltage in Xenon lamps, it is dangerous to replace the bulb or repair the lamp and its components. We recommend that you have such work done by a qualified technician.

i Since replacing bulbs is a technically

highly demanding process, we recommend to have them replaced at an authorized Mercedes-Benz Center.

i If the headlamps or front fog lamps are fogged up on the inside as a result of high humidity, driving the vehicle a distance with the lights on should clear up the fogging.

Replacing bulbs Safety notes Safe vehicle operation depends on proper exterior lighting and signaling to a large degree. Correct headlamp adjustment is extremely important. Have headlamps checked and readjusted at regular intervals and when a bulb has been replaced. Contact an authorized Mercedes-Benz Center for headlamp adjustment. G Warning! Bulbs and bulb sockets can be very hot. Allow the lamp to cool down before changing a bulb. Keep bulbs out of reach of children. Halogen lamps contain pressurized gas. A bulb can explode if you Rtouch or move it when hot Rdrop the bulb Rscratch the bulb

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312 Replacing bulbs

Bulbs You can replace the following bulbs yourself: Halogen headlamps

Bi-Xenon headlamps

Standard rear lamps

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Type : Low-beam lamp: H7 55 W ; High-beam lamp/High-beam flasher

lamp: H7 55 W

= Parking and standing lamp: W 5 W ? Turn signal lamp: 3457A A Side marker lamp: WY 5 W

Type : High-beam flasher lamp/High-beam

flasher spot lamp: H7 55 W

; Parking and standing lamp: W 5 W = Turn signal lamp: 3457A ? Side marker lamp: WY 5 W

Type : Brake lamp: P 21 W ; Backup lamp: P 21 W = Tail lamp, parking and standing lamp,

rear foglamp (driver’s side only): P 21 W

? Side marker lamp: P 21 W A Turn signal lamp: PY 21 W

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LED rear lamps

Replacing bulbs

313

Type : Backup lamp: W 16 W ; Rear foglamp (driver’s side only):

W 16 W

= Rear foglamp (driver’s side only):

W 16 W

License plate lamps

Type : License plate lamps: C 5 W

i Mercedes-Benz recommends using

Longlife (LL) bulbs.

Replacing bulbs for front lamps Before you start to replace a bulb for a front lamp, do the following: X Switch off the ignition. X Turn the exterior lamp switch to position

$.

X Open the hood (Y page 212).

Notes on bulb replacement ! Do not replace LEDs or bulbs not described in this section. You could otherwise damage the LEDs, the bulbs or parts of the vehicle. Only have the LEDs and bulbs replaced at an authorized Mercedes- Benz Center.

ROnly use 12-volt bulbs of the same type and

with the specified watt rating.

RSwitch the lights off before changing a bulb

to prevent short circuits.

RAlways use a clean lint-free cloth when

handling bulbs.

RYour hands should be dry and free of oil and

grease.

RIf the newly installed bulb does not come on, contact an authorized Mercedes-Benz Center.

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314 Replacing bulbs

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X Turn housing cover : counterclockwise

and remove it.

X Turn bulb socket B with the bulb counterclockwise and remove it.

Example illustration: Driver’s side headlamp : Housing cover for low-beam halogen or Bi-

Xenon headlamp

; Housing cover for high-beam halogen

bulb (high beam and high-beam flasher) = Bulb socket for parking and standing lamp

bulb

? Bulb socket for front turn signal lamp bulb A Bulb socket for side marker lamp bulb G Warning! Do not remove the cover for the Bi-Xenon headlamp. Because of high voltage in Xenon lamps, it is dangerous to replace the bulb or repair the lamp and its components. It is recommended to have such work done by a qualified technician.

Low-beam bulb (halogen headlamps only)

X Pull bulb E out of bulb socket B. i Do not remove clip D from bulb socket

B.

X Gently press the new bulb into bulb socket

B.

X Place bulb socket B back into the housing

and turn it clockwise until it engages.

X Align housing cover : and turn it

clockwise until it engages.

High-beam and high-beam flasher bulb (halogen headlamps only)/high-beam flasher bulb (Bi-Xenon headlamps only)

B Bulb socket for low-beam headlamp

C Bulb socket for high-beam headlamp

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X Turn housing cover ; counterclockwise

and remove it.

X Turn bulb socket C with the bulb counterclockwise and remove it.

X Pull the bulb out of bulb socket C. X Gently press the new bulb into bulb socket

C.

X Place bulb socket C back into the housing

and turn it clockwise until it engages.

X Align housing cover ; and turn it

clockwise until it engages.

Parking and standing lamp bulb, front turn signal lamp bulb, side marker lamp bulb X Turn respective bulb socket =, ? or A

(Y page 314) with the bulb counterclockwise and remove it.

X Pull the bulb out of the bulb socket. X Gently press the new bulb into the bulb

socket.

X Place bulb socket =, ? or A back into the housing and turn it clockwise until it engages.

Replacing bulbs for rear lamps Before you start to replace a bulb for a rear lamp, do the following: X Switch off the ignition. X Turn the exterior lamp switch to position

$.

Tail lamp unit To access the tail lamp units, you first have to remove the cover in the corresponding side trim panel of the cargo compartment. X Open the tailgate.

Replacing bulbs

315

Opening the driver’s side trim panel

X Turn lock : counterclockwise by 90°. X Remove cover ;.

Removing storage compartment

Example illustration: Storage compartment without sound system X Remove everything from storage

compartment ;.

X Insert a suitable object such as a coin into

the slot of lock :.

X Turn lock : by 90° in direction of the

arrow.

X Remove storage compartment ;.

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316 Replacing bulbs

Opening the passenger-side trim panel

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X Insert a suitable object such as a coin into

the slot of lock :.

X Turn lock : by 90° in direction of the

arrow.

X Remove cover ;.

Replacing bulbs

Example illustration: Standard rear lamp driver’s side : Brake lamp bulb socket ; Rear turn signal lamp bulb socket = Side marker lamp bulb socket ? Tail lamp, parking and standing lamp and

rear fog lamp (driver’s side only) bulb socket

A Backup lamp bulb socket

Example illustration: LED rear lamp driver’s side : Backup lamp bulb socket ; Rear fog lamp bulb sockets (driver’s side

only)

X Depending on which bulb needs to be

replaced, turn the respective bulb socket counterclockwise.

X Pull the bulb socket out of the housing. X Standard rear lamp: Gently press onto the bulb and turn it counterclockwise out of its bulb socket. LED rear lamp: Pull the bulb out of its bulb socket.

X Standard rear lamp: Gently press the new

bulb into its bulb socket and turn it clockwise until it engages. LED rear lamp: Gently press the new bulb into its bulb socket.

X Align the bulb socket and turn it clockwise. X Make sure the bulb socket is attached

properly.

X Close the respective cover in the cargo

compartment.

X Close the tailgate.

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License plate lamps

X Loosen screws : of lamp cover to be

removed.

X Remove lamp cover ;. X Replace the bulb. X Reinstall lamp cover ;. X Retighten screws :.

Adjusting headlamp aim

: V Vertical centerline ; H Horizontal mounting height, measured

from the center

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317

Correct headlamp adjustment is extremely important. High beam adjustments simultaneously aim the low beam. To check and readjust a headlamp, follow the steps described: X Park the vehicle on a level surface 25 feet (7.6 m) from a vertical test screen or wall. X Make sure the vehicle has a normal tailgate

load.

X Switch on the low beam headlamps L. If the beam does not show a beam pattern as indicated in the figure left, then follow the steps below: X Open the hood (Y page 212).

The adjustment screws are located under the cover panel. X Insert a suitable tool into the openings in the panel cover. The direction of arrows = and ? indicate the angle in which the tool has to be inserted in oder to access the adjustment screws.

X Always turn the adjustment screws equally for vertical adjustment until the headlamp is adjusted as shown in :. Turn clockwise for upward movement and counterclockwise for downward movement. Graduations: RScrew at arrow =: 0.67° pitch RScrew at arrow ?: 0.50° pitch The left and right headlamps must be adjusted individually.

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318 Replacing wiper blades

i If it is not possible to obtain a proper headlamp adjustment, have the system checked at an authorized Mercedes-Benz Center.

Replacing wiper blades Safety notes G Warning! For safety reasons, switch off the wipers and remove the SmartKey from the starter switch (vehicles with KEYLESS-GO: Make sure the vehicle’s on-board electronics have status 0) before replacing a wiper blade. Otherwise, the wiper motor could suddenly turn on and cause injury. G Warning! Wiper blades are components that are subject to wear and tear. Replace the wiper blades twice a year, preferably in the spring and fall. Otherwise the windows will not be wiped properly. As a result, you may not be able to observe surrounding traffic conditions and could cause an accident.

! Never open the hood when a front wiper

arm is folded forward. Hold on to the wiper when folding a wiper arm back. If released, the force of the impact from the tensioning spring could crack the windshield or the rear window. Do not allow a wiper arm to contact the windshield glass or the rear window without a wiper blade inserted. Mercedes-Benz recommends that you have this work carried out at an authorized Mercedes-Benz Center.

X Remove the SmartKey from the starter

switch.

Vehicles with KEYLESS-GO: X Make sure the vehicle’s on-board

electronics have status 0 (Y page 80).

Removing wiper blades Front wiper blades ! Do not pull on the wiper blade inserts.

They could tear.

X Fold the wiper arms forward until they

engage.

X Press tabs ; together. X Tilt wiper blade : away from wiper arm

=.

X Take off wiper blade : in direction of

arrow.

Rear wiper blade ! Do not pull on the wiper blade insert. It

could tear.

X Fold wiper arm : away from the rear

window until it engages.

X Turn wiper blade ; as far as it will go.

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Flat tire 319

X Hold wiper arm : and disengage wiper

blade ; by carefully sliding it in direction of arrow.

X Remove wiper blade ;.

Rear wiper blade

Installing wiper blades Front wiper blades

X With guide tab = sliding into opening ?,

place wiper blade : onto wiper arm in direction of arrow.

X Fold wiper blade : towards wiper arm. Tabs ; (Y page 318) must engage into both recesses of attachment ;.

X Check whether the wiper blade is securely

fastened.

X Fold the wiper arm backward to rest on the

windshield. Make sure you hold on to the wiper arm when folding it back.

! Make sure the wiper blades are installed properly. Improperly installed wiper blades may cause windshield damage.

X Insert wiper blade ; into wiper arm :. X Hold wiper arm : and engage wiper

blade ; by pushing it in direction of arrow until it locks into place.

X Check whether the wiper blade is securely

fastened.

X Fold wiper arm : to rest on the rear

window. Make sure to hold on to the wiper when folding the wiper arm back.

! Make sure the wiper blade is installed properly. An improperly installed wiper blade may cause rear window damage.

Flat tire Safety notes Your vehicle may be equipped with: Ra Minispare wheel Ra spare wheel with collapsible tire Ran MOExtended system (your vehicle does

not have a spare wheel or a TIREFIT kit)

Ra TIREFIT kit30 (your vehicle does not have

a spare wheel)

For information on your vehicle’s equipment, see “Rims and tires” (Y page 352).

30 Canada only.

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320 Flat tire

G Warning! The dimensions of the spare wheel are different from those of the road wheels. As a result, the vehicle handling characteristics change when driving with a spare wheel mounted. Adapt your driving style accordingly. The spare wheel is for temporary use only. When driving with a spare wheel mounted, ensure proper tire inflation pressure and do not exceed a vehicle speed of 50 mph (80 km/h). Contact the nearest authorized Mercedes- Benz Center as soon as possible to have the spare wheel replaced with a regular road wheel. Never operate the vehicle with more than one spare wheel mounted. Do not switch off the ESP® when a spare wheel is mounted. G Warning! Vehicles with air suspension program: Do not open or close any doors or the tailgate while mounting a spare wheel. The vehicle could rise or lower to a previously selected level. You or others could be injured as a result.