2009 Mercedes-benz M Class Owners Manual

Front Passenger Airbag Disabled See Operator’s Manual

USA only: The front passenger front air bag is deactivated while driving even though an adult or someone larger than a small individual is occupying the front passenger seat. Forces acting on the seat may make the system sense a decrease in weight.

Possible solution

X Stop the vehicle in a safe location as soon as

possible.

X Engage the parking brake. X Switch off the ignition. X Have the front passenger vacate the seat and

exit the vehicle.

X Adjust the seat height to a higher position

(Y page 97).

X Make sure no objects which apply forces to the seat are present (e.g. objects such as books, briefcases etc. lodged underneath, behind or around the seat). Such forces may cause the system to sense that an occupant of a lesser weight than actually present is on the front passenger seat.

X Keep the seat unoccupied, close the front passenger door and switch on the ignition.

Monitor the 59 indicator lamp in the center console (Y page 56) and the multifunction display in the instrument cluster (Y page 32) for the following:

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Display messages

Possible cause/consequence

Possible solution

Vehicle status messages in the multifunction display

Practical hints

With the seat unoccupied and the ignition switched on, Rthe 59 indicator lamp in the

center console should illuminate and remain illuminated, indicating that the OCS (Y page 53) has deactivated the front passenger front air bag.

Rthe message Front Passenger Airbag

Enabled See Operator’s Manual or the message Front Passenger Airbag Disabled See Operator’s Manual should not appear in the multifunction display at any time the seat is unoccupied. Wait at least 60 seconds for the system to complete the necessary check cycles and to make sure neither message appears in the multifunction display.

If above conditions are met, you can occupy the front passenger seat again. Depending on the front passenger classification sensed by the OCS, the 59 indicator lamp will remain illuminated or go out. If above conditions are not met, the system is not working properly. Have the system checked as

311

Practical hints

Vehicle status messages in the multifunction display Display messages

Possible cause/consequence

Possible solution soon as possible at an authorized Mercedes-Benz Center.

G Warning! If the 59 indicator lamp remains illuminated with an adult occupant on the front passenger seat even after performing the above corrective steps, do not have any passenger use the front passenger seat until the system has been repaired.

Driving systems

Display messages

Possible cause/consequence

Possible solution

Cruise Control

Inoperative

The cruise control is malfunctioning.

X Have cruise control checked at an authorized

Mercedes-Benz Center.

Cruise Control

- - - MPH (USA only) - - - Km/h (Canada only)

One of the activation conditions for cruise control has not been fulfilled. For example, you have attempted to set a speed below 20 mph (30 km/h).

X Drive faster than 20 mph (30 km/h), if the

situation allows, and set the speed.

X Check the activation conditions for cruise

control (Y page 164).

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Vehicle status messages in the multifunction display

Practical hints

Vehicle

Display messages

Possible cause/consequence

Possible solution

Depress brake

to shift out of P.

You have attempted to shift the automatic transmission into drive position D, reverse gear R or neutral position N without depressing the brake pedal.

X Depress the brake pedal.

Door Open

Vehicle Not In Park You have opened the driver’s door and the

automatic transmission is still in drive position D, reverse gear R or neutral position N.

X Before you leave the vehicle, make sure the automatic transmission is in park position P and the parking brake is engaged.

Drive to workshop

without shifting gears.

The automatic transmission cannot be shifted out of the current transmission position because of a malfunction.

If the automatic transmission is in drive position D: X Without shifting the automatic transmission out of drive position D, drive to an authorized Mercedes-Benz Center.

If the automatic transmission is set to position neutral position N, reverse gear R or park position P: X Do not drive. X Contact an authorized Mercedes-Benz Center

or call Roadside Assistance.

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Practical hints

Vehicle status messages in the multifunction display Display messages

Possible cause/consequence

You have attempted to shift the automatic transmission into park position P although the vehicle was still in motion.

Possible solution

X Stop the vehicle.

Shift to P or N to start engine.

You have attempted to start the engine with the KEYLESS-GO start/stop button while the automatic transmission was in reverse gear R or drive position D.

X Shift the automatic transmission into park

position P or neutral position N. Make sure the brake pedal is depressed.

Possible cause/consequence

Possible solution

then restart Run Flat Indicator.

There has been a warning message about a loss in the tire inflation pressure and the Run Flat Indicator was not restarted yet.

X Make sure the correct tire inflation pressure is

set for each tire.

X Then restart the Run Flat Indicator

(Y page 254).

The Run Flat Indicator is malfunctioning. X Have the Run Flat Indicator checked at an

authorized Mercedes-Benz Center.

Only shift to P when vehicle is at a standstill.

Tires

Display messages

Check tires,

Run Flat Indicator Inoperative

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Display messages

Possible cause/consequence

Possible solution

Vehicle status messages in the multifunction display

Practical hints

Tire Pressure

Check Tires

The Run Flat Indicator indicates that the pressure is too low in one or more tires.

Tire Pressure Monitor

Inoperative

The TPMS is malfunctioning.

X Carefully bring the vehicle to a halt, avoiding

abrupt steering and braking maneuvers. Observe the traffic situation around you.

X Check and adjust tire inflation pressure as

required (Y page 253).

X If necessary, change the wheel (Y page 366). X Restart the Run Flat Indicator after adjusting

the tire inflation pressure values (Y page 254).

X Have the TPMS checked at an authorized

Mercedes-Benz Center.

Tire Pressure Monitor

Inoperative No Wheel Sensors

There are wheels without appropriate wheel sensors mounted (e.g. winter tires).

X Have the TPMS checked at an authorized

Mercedes-Benz Center.

Tire Pressure Monitor

Currently Unavailable

The TPMS is unable to monitor the tire inflation pressure due to a nearby radio interference source or insufficient power supply.

X Have the appropriate wheel sensors installed

at an authorized Mercedes-Benz Center.

As soon as the causes of the malfunction have been removed, the TPMS becomes active again automatically after a few minutes driving.

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Practical hints

Vehicle status messages in the multifunction display 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.

Symbol messages

Brake

Display messages 2 Brake Wear

Possible cause/consequence

Possible solution

The brake pads have reached their wear limit.

X Have the brake pads replaced as soon as

possible.

! Brake pad thickness must be visually inspected by a qualified technician at the intervals specified in the Maintenance Booklet.

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Display messages

Possible cause/consequence

Possible solution

Vehicle status messages in the multifunction display

Practical hints

(USA only) (Canada only)

(USA only) (Canada only)

(USA only) (Canada only)

EBV, ABS, ESP Inoperative See Operator’s Manual

The brake system is still functioning normally but due to a malfunction, the ABS, the BAS, the EBP and the ESP® are unavailable.

X Continue driving with added caution. Wheels

may lock during hard braking, reducing steering capability.

X Adjust driving to be consistent with reduced

braking responsiveness.

X Have the system checked at an authorized Mercedes-Benz Center as soon as possible.

Release Parking Brake

You are driving with the parking brake engaged.

X Release the parking brake.

Check Brake Fluid Level

There is insufficient brake fluid in the reservoir.

Risk of accident! X Stop the vehicle in a safe location or as soon

as it is safe to do so.

X Do not drive any further. X Contact an authorized Mercedes-Benz Center

or call Roadside Assistance.

Do not add brake fluid! This will not solve the problem.

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Practical hints

Vehicle status messages in the multifunction display G Warning! Driving with the message Check Brake Fluid Level displayed can result in an accident. Have your brake system checked immediately. 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.

Safety systems

Display messages L Tele Aid

Inoperative

1 Restraint Sys.

Malfunction Service Required

Possible cause/consequence

Possible solution

One or more main functions of the Tele Aid system are malfunctioning.

X Have the Tele Aid system checked at an

authorized Mercedes-Benz Center.

The system is malfunctioning.

X Drive with added caution to the nearest

authorized Mercedes-Benz Center and have the system checked immediately.

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.

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Driving systems

Display messages n Level Selection

Not Permitted

n Malfunction

Vehicle status messages in the multifunction display

Practical hints

Possible cause/consequence

Possible solution

The selected vehicle level cannot adjusted, because Ryou are driving too fast for the desired

vehicle level

Ryou are towing a trailer Ryou are using accessories that are

connected to the trailer power socket, e.g. a bicycle rack

The air suspension is malfunctioning.

X Reduce vehicle speed and set the desired

vehicle level again (Y page 171).

X Observe the notes on trailer towing

(Y page 282).

X Do not drive faster than 50 mph (80 km/h). X Have the system checked at an authorized

Mercedes-Benz Center.

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Practical hints

Vehicle status messages in the multifunction display Display messages n Compressor Cooling

Down

Possible cause/consequence

You have selected a higher vehicle level. Due to frequent level changes within a short period, the compressor must cool down first. ! When the message Compressor

Cooling Down appears in the multifunction display, driving is still possible. Keep in mind that the ride height of the vehicle is not yet reached, so you can damage the underbody of the vehicle.

Possible solution

X Let the compressor cool down until the

message disappears. The selected level will be set once the compressor has cooled down.

{ Inoperative

Downhill Speed Regulation is malfunctioning.

X Have the Downhill Speed Regulation checked

at an authorized Mercedes-Benz Center.

Vehicle

Display messages

320

Possible cause/consequence

Possible solution

You are driving with the hood or the tailgate open.

You are trying to lock the vehicle with the KEYLESS-GO function with a door or the tailgate open.

X Close the hood or the tailgate.

X Close all doors and/or the tailgate.

Vehicle status messages in the multifunction display

Practical hints

Display messages

Possible cause/consequence

You are driving with at least one door open.

Possible solution

X Close all doors.

I Key Detected In

Vehicle

I Don’t Forget Your

Key

I Remove Key

A SmartKey with KEYLESS-GO left in the vehicle was recognized while trying to lock the vehicle from the outside.

This display appears for a maximum of 60 seconds if the driver’s door is opened with the engine turned off and no SmartKey in the starter switch. This message is only a reminder.

You have forgotten to remove the SmartKey.

I You need a new key. The SmartKey is malfunctioning. I Key Does Not Belong

The SmartKey in the starter switch does not belong to the vehicle.

to Vehicle

I Change Key Batteries

The batteries in the SmartKey with KEYLESS-GO are discharged.

X Take the SmartKey out of the vehicle.

X Take the SmartKey with you when leaving the

vehicle.

X Remove the SmartKey from the starter switch.

X Contact an authorized Mercedes-Benz Center.

X Find the SmartKey that belongs to the vehicle

to operate the vehicle.

X Replace the batteries (Y page 353).

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Practical hints

Vehicle status messages in the multifunction display Display messages I Key Not Detected

Possible cause/consequence

The SmartKey with KEYLESS-GO is not detected while the engine is running because the SmartKey is not in the vehicle.

I Key Not Detected

The SmartKey with KEYLESS-GO is not detected while the engine is running because there is strong radio-frequency interference.

I Key Not Detected

The SmartKey with KEYLESS-GO is momentarily not detected.

I Pull starting

button out then insert key.

t Bluetooth Ready

The SmartKey with KEYLESS-GO is permanently not detected.

The telephone has not yet been connected to the COMAND system via Bluetooth®.

322

Possible solution

X Stop the vehicle as soon as it is safe to do so. X Engage the parking brake. X Search for the SmartKey.

The vehicle cannot be locked centrally nor can the engine be started again after the engine is stopped.

X Stop the vehicle as soon as it is safe to do so. X Engage the parking brake. X Operate the vehicle with the SmartKey in the

starter switch.

X Change the position of the SmartKey in the

vehicle.

X Operate the vehicle with the SmartKey in the

starter switch if necessary.

X Operate the vehicle with the SmartKey in the

starter switch.

X Contact an authorized Mercedes-Benz Center.

X Connect the telephone to the COMAND system

via Bluetooth®.

Vehicle status messages in the multifunction display

Practical hints

Display messages Possible cause/consequence W Top Up Washer Fluid The fluid level has dropped to

approximately 1/3 of total reservoir capacity.

Possible solution X Add washer fluid (Y page 244).

Engine

Display messages B Top Up Coolant See Operator’s Manual

Possible cause/consequence

The coolant level is too low.

Possible solution X Add coolant (Y page 243). X If you have to add coolant frequently, have the

cooling system checked at an authorized Mercedes-Benz Center.

G Warning! Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn if it comes into contact with hot engine parts. You could be seriously burned.

! Do not ignore the low engine coolant level warning. Extended driving with the message and symbol displayed may cause serious engine

damage not covered by the Mercedes-Benz Limited Warranty. Do not drive without sufficient amount of coolant in the cooling system. The engine will overheat causing major engine damage.

323

Practical hints

Vehicle status messages in the multifunction display Display messages Ì Coolant

The coolant is too hot.

Possible cause/consequence

Stop car, switch engine off.

Possible solution

X Stop the vehicle immediately as soon as it is

safe to do so.

X Turn off the engine immediately. X Engage the parking brake. X Only start the engine again after the message disappears. You could otherwise damage the engine.

X Observe the coolant temperature in the

multifunction display.

X If the temperature rises again: Contact an

authorized Mercedes-Benz Center immediately.

During severe operation conditions and stop- and-go city traffic, the coolant temperature may rise close to 248‡ (120†).

G Warning! Driving when your engine is overheated can cause some fluids which may have leaked into the engine compartment to catch fire. You could be seriously burned. Steam from an overheated engine can cause serious burns which can occur just by opening the engine hood. Stay away from the engine if you see or hear steam coming from it. Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of the vehicle and do not stand near the vehicle until the engine has cooled down.

324

Vehicle status messages in the multifunction display ! The engine should not be operated with the coolant temperature above 248‡ (120†). Doing so may cause serious damage which is not

covered by the Mercedes-Benz Limited Warranty.

Practical hints

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Practical hints

Vehicle status messages in the multifunction display Display messages Ì Coolant

Possible cause/consequence

The poly-V-belt could be broken.

Stop car, switch engine off.

Possible solution

X Stop the vehicle immediately as soon as it is

safe to do so.

X Turn off the engine immediately. X Check the poly-V-belt. X If it is broken: Do not continue to drive.

Otherwise the engine will overheat due to an inoperative water pump which may result in damage to the engine. Contact an authorized Mercedes-Benz Center.

X If it is intact: Do not continue to drive the

vehicle with this message displayed. Doing so could result in serious engine damage that is not covered by the Mercedes-Benz Limited Warranty.

X Observe the coolant temperature in the

multifunction display.

X Drive to the nearest authorized Mercedes-Benz

Center immediately.

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Display messages Ì

Vehicle status messages in the multifunction display

Practical hints

Possible cause/consequence

Possible solution

The cooling fan for the coolant is malfunctioning.

The battery is no longer charging. Possible causes: Ralternator malfunctioning Rbroken poly-V-belt Ra malfunction in the electronic system

X Observe the coolant temperature in the

multifunction display. If the coolant temperature is below 248‡ (120†), you may continue driving to an authorized Mercedes-Benz Center.

X Avoid placing heavy loads on the engine (e.g. by driving uphill) as well as stop-and-go traffic.

X Have the fan replaced as soon as possible.

X Stop immediately in a safe location or as soon as it is safe to do so and check the poly-V-belt.

X If it is broken: Do not continue to drive.

Otherwise the engine will overheat due to an inoperative water pump which may result in damage to the engine. Contact an authorized Mercedes-Benz Center.

X If it is intact: Drive to the nearest authorized

Mercedes-Benz Center immediately. Adjust driving to be consistent with reduced braking responsiveness.

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Practical hints

Vehicle status messages in the multifunction display Display messages # Battery/Alternator

The battery is defective.

Possible cause/consequence

Stop Vehicle

N Check engine oil

level at next refueling.

The engine oil level is too low.

Possible solution

X Stop the vehicle in a safe location or as soon

as it is safe to do so.

X Engage the parking brake. X Do not continue to drive. X Contact an authorized Mercedes-Benz Center.

X Check the engine oil level (Y page 241) and add

engine oil as required (Y page 242).

X If you must add engine oil frequently, have the

engine checked for possible leaks.

If the message Check engine oil level at next refueling. appears while the engine is running and at operating temperature, the engine oil level has dropped to approximately the minimum level. The message will be stored in the vehicle status message memory after you have cleared it from the multifunction display.

Visually check for oil leaks. If there are no obvious oil leaks, drive to the nearest service station to refill your engine oil to the required level. For information on approved engine oils contact an authorized Mercedes-Benz Center or visit www.mbusa.com (USA only).

! Engine oil level warnings should not be

ignored. Extended driving with the symbol displayed could result in serious engine damage that is not covered by the Mercedes-Benz Limited Warranty.

328

Vehicle status messages in the multifunction display

Practical hints

Display messages

¿

Possible cause/consequence

Possible solution

The fuel level is low.

X Refuel at the next gas station.

4 Reserve Fuel

4 Ultra Low-sulfur Diesel Fuel Only

The fuel level has dropped below the reserve mark.

Vehicles with diesel engine only: The fuel level has dropped below the reserve mark.

4 Gas Cap Open

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.

ò Replace air filter

The air filter is clogged.

] Clean Fuel Filter

There is water in the fuel filter.

û Check Additive See Operator's Manual

The AdBlue® supply is almost depleted.

X Refuel at the next gas station.

X Refuel at the next gas station. X Only use commercially available vehicular

ULTRA-LOW SULFUR DIESEL FUEL (15 ppm SULFUR MAXIMUM).

X Check the fuel cap (Y page 237). X If it is not closed properly: Close the fuel cap. X If it is closed properly: Have the fuel system

checked at an authorized Mercedes-Benz Center.

X Have the air filter checked at an authorized

Mercedes-Benz Center.

X Have the water drained at an authorized

Mercedes-Benz Center as soon as possible.

X Have the AdBlue® tank refilled as soon as

possible (Y page 380). Contact an authorized Mercedes-Benz Center.

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Practical hints

Vehicle status messages in the multifunction display Display messages û Remaining Starts: 20

Possible cause/consequence

The AdBlue® supply has dropped to the minimum level.

Possible solution

X Have the AdBlue® tank refilled immediately

(Y page 380). Contact an authorized Mercedes-Benz Center.

i When the message Remaining

Starts: 20 appears in the multifunction display, you can start the engine 20 more times. If you do not add AdBlue®, the

engine cannot be started beyond that point. Therefore, fill the AdBlue® tank with approximately 1 gal (3.79 l) AdBlue® (corresponds to approximately 2 refill

containers AdBlue®) or have the AdBlue® tank filled at an authorized Mercedes-Benz Center. After AdBlue® was refilled, the engine can be started again.

Lamps

Display messages . Active Headlamps

Inoperative

. Reverse Lamp Left or Reverse Lamp Right

Possible cause/consequence

Possible solution

The active Bi-Xenon headlamp system is malfunctioning.

X Contact an authorized Mercedes-Benz Center

as soon as possible.

The left or right backup lamp is malfunctioning.

X Replace the bulb as soon as possible

(Y page 354).

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Vehicle status messages in the multifunction display

Practical hints

Possible cause/consequence

The left or right brake 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.

The high-mounted brake lamp is malfunctioning. This message will only appear if all LEDs have stopped working.

Possible solution X Rear lamps with bulbs: Replace the bulb as

soon as possible (Y page 354).

X Rear lamps with LEDs: Contact an authorized

Mercedes-Benz Center as soon as possible.

X Contact an authorized Mercedes-Benz Center

as soon as possible.

The left or right front fog lamp is malfunctioning.

X Replace the bulb as soon as possible

(Y page 354).

The front left side or right side marker lamp is malfunctioning.

X Replace the bulb as soon as possible

(Y page 354).

Display messages . Brake Lamp Left or Brake Lamp Right

. 3rd Brake Lamp

. Front Foglamp Left

or Front Foglamp Right

. Marker Lamp Front

Left or Marker Lamp Front Right

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Practical hints

Vehicle status messages in the multifunction display Display messages . Parking Lamp Front

Possible cause/consequence

The left or right front parking lamp is malfunctioning. A substitute bulb is being used.

Left or Parking Lamp Front Right

Possible solution

X Replace the bulb as soon as possible

(Y page 354).

. High Beam Left or High Beam Right

The left or right high-beam lamp is malfunctioning.

X Halogen headlamp: Replace the bulb as soon

as possible (Y page 357).

X Bi-Xenon headlamp: Contact an authorized Mercedes-Benz Center as soon as possible.

. License Plate Lamp

Left or License Plate Lamp Right

The left or right license plate lamp is malfunctioning.

X Replace the bulb as soon as possible

(Y page 354).

. AUTO Light Inoperative

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 manual (Y page 155).

X Switch off the headlamps using the exterior

lamp switch (Y page 109).

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Vehicle status messages in the multifunction display

Practical hints

Display messages . Low Beam Left or Low Beam Right

Possible cause/consequence

The left or right low-beam lamp is malfunctioning.

. Foglamp Rear Left

. Switch Off Lights

. Tail Lamp Left or Tail Lamp Right

The rear fog lamp is malfunctioning. Rear lamps with LEDs: A substitute bulb is being used.

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.

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.

Possible solution X Halogen headlamp: Replace the bulb as soon

as possible (Y page 354).

X Bi-Xenon headlamp: Contact an authorized Mercedes-Benz Center as soon as possible.

X Replace the bulb as soon as possible

(Y page 354).

X Turn the exterior lamp switch to M or

U (Y page 109).

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

the exterior lamp switch to its stop.

X Rear lamps with bulbs: Replace the bulb as

soon as possible (Y page 354).

X Rear lamps with LEDs: Contact an authorized

Mercedes-Benz Center as soon as possible.

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Practical hints

Vehicle status messages in the multifunction display Display messages . Cornering Lamp

Possible cause/consequence

The left or right corner-illuminating front fog lamp is malfunctioning.

Left or Cornering Lamp Right

Possible solution

X Replace the bulb as soon as possible

(Y page 354).

The left or right trailer brake lamp is malfunctioning.

The left or right trailer tail lamp is malfunctioning.

X Replace the bulb as soon as possible.

X Replace the bulb as soon as possible.

The left or right trailer turn signal lamp is malfunctioning.

X Replace the bulb as soon as possible.

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 354).

X Rear lamps with LEDs: Contact an authorized

Mercedes-Benz Center as soon as possible.

. Trailer Brake Lamp

. Trailer Tail Lamp

Left or Trailer Tail Lamp Right

. Trailer Turn Signal Left or Trailer Turn Signal Right

. Turn Signal Rear

Left or Turn Signal Rear Right

334

Display messages . Turn Signal Front

Left or Turn Signal Front Right

. Turn Signal Left

Mirror or Turn Signal Right Mirror

Tires

Display messages H Tire pressure(s)

Please Correct

H Tire Pressure Caution: Tire Defect

Vehicle status messages in the multifunction display

Practical hints

Possible cause/consequence

Possible solution

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 357).

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 cause/consequence

Possible solution

The tire pressure is too low in one or more tires. or The tire pressure of the individual tires differ from each other significantly.

One or more tires are deflating.

X Check and correct tire inflation pressure as

required (Y page 253).

X Carefully bring the vehicle to a halt, avoiding

abrupt steering and braking maneuvers.

X If necessary, change the wheel (Y page 366).

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Practical hints

Vehicle status messages in the multifunction display Display messages H Tire Pressure

Check Tires

Possible cause/consequence

The tire pressure in one or more tires is already below the minimum value.

Possible solution

X Carefully bring the vehicle to a halt, avoiding

abrupt steering and braking maneuvers.

X Check and adjust tire pressure as required. X If necessary, change the wheel (Y page 366).

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.

336

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 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.

Practical hints

What to do if …

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Practical hints

What to do if … Brake

Problem

Possible cause/consequence

Suggested solutions

The ABS has detected a malfunction and switched off. The BAS, ESP®, EBP and Electronic Traction System (4-ETS) are also switched off (see messages in multifunction display). 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.

The ABS has switched off due to insufficient power supply. The battery might not be charged sufficiently.

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

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

338

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 302).

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.

When the voltage is above the required value again, the ABS is operational again and the ABS indicator lamp should go out. X If the ABS indicator lamp does not go out: Have the alternator and

the battery checked.

Problem

Possible cause/consequence

Suggested solutions

Practical hints

What to do if …

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

; (USA only) 3 (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) 3 (Canada only) The red brake warning lamp comes on while driving and you hear a warning sound.

The self-diagnosis has not yet 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 Electronic Brake Proportioning (EBP) switched off due to a malfunction. The ABS, the BAS, and the ESP® 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.

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Practical hints

What to do if … Problem

; (USA only) 3 (Canada only) The red brake warning lamp comes on while the engine is running and you hear a warning sound.

Possible cause/consequence

Suggested solutions

There is insufficient brake fluid in the reservoir.

X Risk of accident! 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 302).

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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Practical hints

What to do if …

Safety systems

Problem

< The red seat belt telltale comes on for a maximum of 6 seconds after starting the engine.

< You hear a warning chime

for a maximum of 6 seconds after starting the engine.

< The red seat belt telltale

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

Possible cause/consequence

Suggested 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.

There are items placed on the front passenger seat and therefore the system senses the front passenger seat as being occupied.

X Fasten your seat belts.

The seat belt telltale goes out.

X Remove the items from the front passenger seat and put them in

a safe place. The seat belt telltale goes out.

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Practical hints

What to do if … Problem

< During driving the red seat

belt telltale flashes and you additionally hear an intermittent warning chime with increasing intensity.

Possible cause/consequence

Suggested solutions

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.

There are items placed on the front passenger seat and therefore the system senses the front passenger seat as being occupied.

X Fasten your seat belts.

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

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.

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

Possible cause/consequence

Suggested solutions

1 The red SRS indicator lamp comes on while driving.

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-Benz

Center.

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Practical hints

What to do if …

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

Possible cause/consequence

Suggested solutions

v The yellow ESP® warning lamp comes on while the engine is running.

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.

v The yellow ESP® warning lamp comes on while the engine is running.

The ESP® is not operational due to a malfunction. Risk of accident!

X Switch the ESP® back on. Exceptions: (Y page 78).

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.

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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Possible cause/consequence

Suggested solutions

The ESP® or Electronic Traction System (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 78).

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

Possible cause/consequence

Suggested solutions

The fuel level has gone below the reserve mark.

X Refuel at the next gas station.

Practical hints

What to do if … Problem

v The yellow ESP® warning lamp flashes while driving.

Vehicle

Problem

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

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Engine

Problem

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

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

Practical hints

What to do if …

Possible cause/consequence

Suggested 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.

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.

Diesel engine: Your fuel tank was driven empty.

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.

X Check the fuel cap (Y page 237). 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.

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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Practical hints

What to do if … Tires

Problem

H USA only:

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

H USA only:

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

Possible cause/consequence

Suggested solutions

The 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 302).

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 TPMS.

X Read and observe messages in the multifunction display

(Y page 302).

X Have the TPMS checked by an authorized Mercedes-Benz Center. 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 every other week 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, if available,

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, if available, 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

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Practical hints

What to do if …

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 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, 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. Lamp in center console

Problem

Possible cause/consequence

Suggested solutions

Canada only: 59
The indicator lamp illuminates and remains illuminated (Y page 58).

A BabySmartTM child seat is installed on the 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 passenger seat.

X Have the system checked as soon as possible at an authorized

Mercedes-Benz Center.

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Practical hints

What to do if … Problem

Canada only: 59
The indicator lamp does not illuminate or does not remain illuminated with a BabySmartTM child seat properly installed on the passenger seat.

USA only: 59
The 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.

Possible cause/consequence

Suggested solutions

The system is malfunctioning.

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 71). 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.

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 302).

G Warning! If the 59 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.

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Practical hints

What to do if …

Problem

Possible cause/consequence

Suggested solutions

USA only: 59
The 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.

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 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 302).

G Warning! If the 59 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.

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Practical hints

Unlocking/locking manually 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. i Unlocking the vehicle with the

mechanical key and opening the driver’s door will trigger the anti-theft alarm system. To cancel the alarm, insert the SmartKey in the starter switch.

Removing the mechanical key

1 Mechanical key locking tab 2 Mechanical key

350

X Move locking tab 1 in direction of arrow. X Slide mechanical key 2 out of the housing.

Unlocking the driver’s door

$ Unlocking 2 Mechanical key X Insert mechanical key 2 into the driver’s

door lock until it stops.

X Turn mechanical key 2 counterclockwise

to position $ and hold it there.

X Pull the door handle 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.

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.

X Press the central locking switch

(Y page 89). 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 of the front passenger door and the rear doors manually.

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 k 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.

2 Cover A minimum height clearance of 7.2 ft (2.20 m) is required to open the tailgate. ! Always make sure there is sufficient

overhead clearance.

X Remove cover 2 from the trim on the

tailgate.

X Push release lever 1 all the way to the left. X Lift the tailgate.

i If the vehicle has previously been locked