2009 Mercedes-benz G Class Owners Manual

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Display messages SRS

Restraint System Malfunctio n Service Required

SRS

Restraint System Service Required

Possible causes/consequences and X Solutions There is a malfunction in the Supplemental Restraint Systems (SRS). The air bags or the 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 and have the system checked immediately.

There is a malfunction in the Supplemental Restraint Systems (SRS). The air bags or the 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 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.

Driving systems

Display messages AAS

Service Required

Inoperativ

Cruise Cont. And SPEEDTRONI

Possible causes/consequences and X Solutions On inclines, the vehicle may start to roll down upon releasing the accelerator pedal. X Continue driving with added caution. 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 cruise control is malfunctioning. X Have the cruise control checked at an authorized

Mercedes-Benz Center.

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Tires

Display messages Tire pressure displayed only

after driving for a few minutes.

Possible causes/consequences and X Solutions The tire inflation pressure is being checked. X Drive the vehicle for a few minutes.

Tire Pres. Monitor

Tire Pres. Monitor Inoperativ

Inoperativ

The Advanced TPMS is malfunctioning. X Have the Advanced TPMS checked at an authorized

Mercedes-Benz Center.

No Wheel Sensors

There are wheels without appropriate wheel sensors mounted (e.g. winter tires). X Have the Advanced TPMS checked at an authorized

Mercedes-Benz Center.

X Have the appropriate wheel sensors installed at an

authorized Mercedes-Benz Center.

Wheel Sensor

Missing

One or more sensors are defect (e.g. battery is empty). The respective tire is indicated by – – instead of the tire inflation pressure in the multifunction display. X Have the Advanced TPMS checked at an authorized

Mercedes-Benz Center.

X Have the wheel sensors installed at an authorized

Mercedes-Benz Center.

One or more wheels without appropriate wheel sensors mounted (e.g. spare tire). The respective tire is indicated by – – instead of the tire inflation pressure in the multifunction display. X Have the Advanced TPMS checked at an authorized

Mercedes-Benz Center.

X Have the wheel sensors installed at an authorized

Mercedes-Benz Center.

Tire Pres. Monitor

Currently Unavailabl

The Advanced TPMS is unable to monitor the tire inflation pressure due to a nearby radio interference source or insufficient power supply. As soon as the causes of the malfunction have been removed, the Advanced TPMS becomes active again automatically after a few minutes of driving.

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Display messages Correct The Tire Pres.

Caution Tire defect

Check Tires

Possible causes/consequences and X Solutions The tire pressure is too low in one or more tires. or The tire pressures of the individual tires differ from each other significantly. The tire pressure values are shown in the multifunction display. X Check and correct tire inflation pressure as required

(Y page 156).

One or more tires are deflating. The respective tire is indicated in the multifunction display. X Carefully bring the vehicle to a halt, avoiding abrupt

steering and braking maneuvers.

X If necessary, change the wheel (Y page 232). The tire pressure in one or more tires is already below the minimum value. The respective tire is indicated in the multifunction display. 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 232).

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.

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Symbol messages Brake

Display messages # Brake Wear

Possible causes/consequences and X Solutions 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.

Release Parking Brake

Display messages (USA only) (Canada only) (USA only) (Canada only)

Check Brake Fluid Level

Possible causes/consequences and X Solutions You are driving with the parking brake engaged. In addition an acoustic warning sounds. X Release the parking brake.

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 Engage the parking brake 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.

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.

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Safety systems

Display messages G Tele Aid Inoperativ

Driving systems

Display messages © Transfer Case Service Required

© TC Shift Procedure Canceled

© TC Shift Conditions Not Fulfilled

© TC In Neutral

Possible causes/consequences and X Solutions 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.

Possible causes/consequences and X Solutions The transfer case is malfunctioning. X Do not switch the transfer case on. X Contact an authorized Mercedes-Benz Center as soon as

possible.

The shift process in the transfer case was canceled because of a malfunction. X Repeat the shift process (Y page 91). You have not met the shift conditions for a selection process in the transfer case. X Repeat the shift process (Y page 91).

No gear has been selected in the transfer case, it is in Neutral. X Engage transfer case to gear position HIGH or LOW

(Y page 91).

G Warning! If the transfer case is in Neutral, the park position P of the automatic transmission will

not hold the vehicle. The parking brake must be engaged to hold the vehicle in place.

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Vehicle

Display messages

¡

Possible causes/consequences and X Solutions The tailgate is open. X Close the tailgate (Y page 61). You are driving with the hood open. X Stop the vehicle in a safe location as soon as it is safe to

do so.

X Close the hood (Y page 149). There is otherwise danger of an accident. You are driving with at least one door open. X Close all doors.

+ Remove Key You have forgotten to remove the SmartKey.

+ Get a new

key.

~ Bluetooth

Ready

X Remove the SmartKey from the starter switch. The SmartKey is malfunctioning. X Contact an authorized Mercedes-Benz Center. The telephone has not yet been connected to the COMAND system via Bluetooth®. X Connect the telephone to the COMAND system via

Bluetooth®.

¥ Top Up Washer Fluid

The fluid level has dropped to approximately 1/3 of total reservoir capacity. X Add washer fluid (Y page 153).

Engine

Display messages

+ Top Up Coolant See Operator's Manual

Possible causes/consequences and X Solutions Certain electronic systems are unable to relay information to the control system. The coolant temperature gauge or the tachometer may have failed. X Have the electronic systems checked at an authorized

Mercedes-Benz Center.

The coolant level is too low. X Add coolant (Y page 152). X If you have to add coolant frequently, have the cooling

system checked at an authorized Mercedes-Benz Center.

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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.

Display messages ? Coolant

Stop, Turn Engine Off

Possible causes/consequences and X Solutions The coolant is too hot. 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 gauge in the instrument

cluster.

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.

! 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.

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Display messages ? Coolant

Stop, Turn Engine Off

Possible causes/consequences and X Solutions The poly-V-belt could be broken. 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 gauge in the instrument

cluster.

X Drive to the nearest authorized Mercedes-Benz Center

immediately.

The cooling fan for the coolant is malfunctioning. X Observe the coolant temperature gauge in the instrument

cluster. 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. The battery is no longer charging. Possible causes: Ralternator malfunctioning Rbroken poly-V-belt 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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Possible causes/consequences and X Solutions The battery has insufficient voltage. X Turn off unnecessary electrical consumers. X Have the battery and the alternator checked at an

authorized Mercedes-Benz Center as soon as possible.

The battery was charged with a battery charger or jump started. X Have the battery and the alternator checked at an

authorized Mercedes-Benz Center as soon as possible.

The engine oil has dropped to a critical level. X Check the engine oil level (Y page 149) and add engine oil

as required (Y page 151).

X If you must add engine oil frequently, have the engine

checked for possible leaks.

You have added too much engine oil. There is a risk of damaging the engine or the catalytic converter. X Have oil siphoned or drained off. Observe all legal

requirements with respect to its disposal.

It may be that there is water in the engine oil. X Have the engine oil at an authorized Mercedes-Benz Center. The measuring system is malfunctioning. X Have the measuring system checked at an authorized

Mercedes-Benz Center.

The engine oil level is too low. X Add engine oil (Y page 151) and check the engine oil level

(Y page 149).

X If you must add engine oil frequently, have the engine

checked for possible leaks.

Display messages

4 Engine Oil Level Service Required

4 At next gas station add 1.0 qt engine oil. (USA only) At next gas station add 1.0 liter engine oil. (Canada only)

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If the message At next gas station add 1 qt. (Canada: 1 liter) engine oil. 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 Display messages 4 Engine Oil Level Stop, Turn Engine Off

to do so.

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.

Possible causes/consequences and X Solutions There is no oil in the engine. There is a danger of engine damage. X Stop the vehicle in a safe location or as soon as it is safe

X Turn off the engine. X Engage the parking brake. X Add engine oil (Y page 151) and check the engine oil level

(Y page 149).

8 Reserve

Fuel

8 Gas cap is open.

The fuel level has dropped below the reserve mark. X Refuel at the next gas station. 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 147). 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.

´ Clean Fuel Filter

There is water in the fuel filter. X Have the water drained at an authorized Mercedes-Benz

Center as soon as possible.

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Lamps

Display messages b Reverse

Lamp Right

b Brake

Lamp Left or Brake Lamp Right b 3rd Brake

Lamp

b Front

Foglamp Left or Front Foglamp Right b Front Left Side Marker Lamp or Front Right Side Marker Lamp

Possible causes/consequences and X Solutions The right backup lamp is malfunctioning. X Replace the bulb as soon as possible (Y page 226). The left or right brake lamp is malfunctioning. X Replace the bulb as soon as possible (Y page 226).

The high-mounted brake lamp is malfunctioning. This message will only appear if all LEDs have stopped working. 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 226).

The front left side or right side marker lamp is malfunctioning. X Replace the bulb as soon as possible (Y page 226).

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Display messages b Parking

Lamp Front Left Auxiliary Bulb On or Parking Lamp Front Right Auxiliary Bulb On

b High Beam

Left or High Beam Right

b License

Plate Lamp, Left or License Plate Lamp, Right b AUTO- Light Inoperativ

Possible causes/consequences and X Solutions The left or right front parking lamp is malfunctioning. A substitute bulb is being used. X Contact an authorized Mercedes-Benz Center as soon as

possible.

The left or right high-beam lamp is malfunctioning. X 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 226).

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 106).

(Y page 72).

b Low Beam

Left or Low Beam Right

The left or right low-beam lamp is malfunctioning. X Contact an authorized Mercedes-Benz Center as soon as

possible.

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Display messages b Rear

Foglamp Auxiliary Bulb On b Switch

Off Lights

b Turn off lights or remove key

b Tail Lamp, Left Auxiliary Bulb On or Tail Lamp, Right Auxiliary Bulb On

b Turn

Signal Rear Left Auxiliary Bulb On or Turn Signal Rear Right Auxiliary Bulb On

Possible causes/consequences and X Solutions The rear fog lamp is malfunctioning. A substitute bulb is being used. X Replace the bulb as soon as possible (Y page 226).

You have removed the SmartKey from the starter switch, opened the driver’s door and left the headlamps on. X Turn the exterior lamp switch to $ or Ã

(Y page 72).

The exterior lamp switch is set to à and you have forgotten to remove the SmartKey from the starter switch. The parking lamps remain switched on. X Remove the SmartKey from the starter switch. or X Switch off the headlamps. The left or right tail lamp is malfunctioning. A substitute bulb is being used. X Replace the bulb as soon as possible (Y page 226).

The left or right rear turn signal lamp is malfunctioning. A substitute bulb is being used. X Replace the bulb as soon as possible (Y page 226).

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212 Vehicle status messages in the multifunction display

Display messages b Turn Signal Front Left Auxiliary Bulb On or Turn Signal Front Right Auxiliary Bulb On

b Turn Signal In Left Mirror or Turn Signal In Right Mirror

Tires

Display messages h Correct The Tire Pres.

Possible causes/consequences and X Solutions 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 226).

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 X Solutions The tire pressure is too low in one or more tires. or The tire pressure of the individual tires differ from each other significantly. X Check and correct tire inflation pressure as required

(Y page 156).

h Tire Pres. Caution Tire Defect

One or more tires are deflating. X Carefully bring the vehicle to a halt, avoiding abrupt

steering and braking maneuvers.

X If necessary, change the wheel (Y page 232).

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Display messages h Tire Pres. Check Tires

Possible causes/consequences and X Solutions The tire pressure in one or more tires is already below the minimum value. 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 232).

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 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 X Solutions The ABS has detected a malfunction and switched off. The BAS, the EBB, the ESP® and the 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. 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 196).

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 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.

X If necessary, have the alternator and battery checked. You have engaged the differential locks. The ABS, the BAS, the EBB, the ESP® and the 4-ETS are switched off. X The driving systems will switch on again after the differential

locks have been disengaged.

! 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 and the yellow ABS malfunction indicator lamp comes on while driving and an acoustic warning sounds for approximately 5
seconds. $ (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.

What to do if … 215

Possible causes/consequences and X Solutions The EBB switched off due to a malfunction. X Continue driving with added caution. 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. 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 196).

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.

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Possible causes/consequences and X Solutions The seat belt telltale reminds you and your passengers to fasten your seat belts before driving off. X Fasten your seat belts.

Problem + The red SRS

indicator lamp comes on while driving.

Possible causes/consequences and X 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-

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.

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What to do if … 217

Problem d The yellow ESP®

warning lamp comes on while the engine is running.

d The yellow ESP®

warning lamp flashes while driving.

Possible causes/consequences and X 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. The cruise control is deactivated and cannot be switched on. X Switch the ESP® back on. Exceptions: (Y page 53).

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.

You have engaged the differential locks. The ABS, BAS, EBB, ESP® and 4-ETS are switched off. X The driving systems will switch on again after the differential

locks have been disengaged.

The ESP® or the 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 53).

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

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Vehicle

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

Engine

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

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

The fuel cap is not closed properly. X Close the fuel cap.

Possible causes/consequences and X 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.

= (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 146). 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.

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Tires

Problem h USA only:

Combination low tire pressure telltale/TPMS malfunction telltale for the Advanced TPMS illuminates continuously. Canada only: Low tire pressure 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.

Possible causes/consequences and X 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 196).

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 196).

Benz Center.

X Have the Advanced TPMS checked by 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 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 vehicle 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

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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. USA only: 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 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.

Lamp in center console Problem

4/ The front passenger front air bag off indicator lamp illuminates and remains illuminated (Y page 38).

Possible causes/consequences and X Solutions 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.

4/ 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.

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 47). 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.

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221

X Insert mechanical key ; into the lock

cylinder.

X Turn mechanical key ; counterclockwise to position 1 until the locking knob moves up. The driver’s door is unlocked. X Remove mechanical key ;. X Press lock cylinder and pull on door handle

to open the driver’s door.

Unlocking the tailgate G Warning! The tailgate swings open to one side. Always make sure there is sufficient clearance for the tailgate. Make sure the tailgate is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter vehicle interior resulting in unconsciousness and death.

Unlocking/locking manually Unlocking the vehicle If you cannot unlock the vehicle with the SmartKey, unlock the driver’s door and the tailgate using the mechanical key. i Unlocking and opening the driver’s door or the tailgate with the mechanical key will trigger the anti-theft alarm system. To cancel the alarm, insert the SmartKey in the starter switch.

Removing the mechanical key

X Move locking tab : in direction of arrow. X Slide mechanical key ; out of the housing.

Unlocking the driver’s door

X Insert mechanical key = into the lock

cylinder.

X Turn mechanical key = counterclockwise

to position 2.

X Remove mechanical key =. X Press lock cylinder and pull on door

handle : to open the tailgate.

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222 Unlocking/locking manually

Locking the vehicle If you cannot lock the vehicle with the SmartKey, lock it as follows: X Close the front passenger door, the rear

doors, and the tailgate. X Open the driver’s door. X Press the central locking switch

(Y page 60). The locking knobs of the front passenger door, the rear doors, and the tailgate move down.

X If the vehicle battery is disconnected or drained: Press down the locking knobs on the front passenger door, the rear doors, and the tailgate. X Exit the vehicle. X Close the driver’s door.

X Remove mechanical key ; from the

SmartKey (Y page 221).

X Insert mechanical key ; into the lock

cylinder.

X Turn mechanical key ; clockwise to

position 1. The vehicle is locked.

X Turn mechanical key ; back and remove

it from the lock cylinder.

X Check if the tailgate is locked. X If necessary, lock the tailgate with the

mechanical key (Y page 61).

i This procedure does not arm the anti-

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

Manually unlocking the gear selector lever If the vehicle’s electrical system is malfunctioning, the gear selector lever could remain locked in park position P. In this case the gear selector lever can be unlocked manually, e.g. to tow the vehicle. X Engage the parking brake.

X Insert suitable tool : (e.g. a ball point pen)

into the covered opening.

X Simultaneously push tool : downward and move the gear selector lever out of park position P. X Remove tool :.

The gear selector lever is unlocked.

The cover returns to its closed position after moving the gear selector lever to the positions D+ and D-. i The gear selector lever is locked again as soon as you move it back to park position P.

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Fuel filler flap 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 side trim panel. X Open the tailgate (Y page 61).

X Remove edge protection : in direction of

arrow ;.

i Before removing side trim panel =

completely, the electrical connectors must be disconnected.

X Pull off side trim panel = in direction of arrow ? so the electrical connectors are accessible.

X Disconnect the electrical connectors. X Remove side trim panel = completely.

X Pull fuel filler flap release A upwards in

direction of arrow.

X Open the fuel filler flap (Y page 146). X Connect the electrical connectors. X Reinstall side trim panel = (Y page 224). X Reinstall edge protection :. X Close the tailgate.

Opening/closing manually Power tilt/sliding sunroof You can open or close the power tilt/sliding sunroof manually should an electrical malfunction occur. The power tilt/sliding sunroof drive is located on the driver’s side in the cargo compartment behind the side trim panel. X Open the tailgate (Y page 61).

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X Remove edge protection : in direction of

arrow ;.

i Before removing side trim panel =

completely, the electrical connectors must be disconnected.

X Pull off side trim panel = in direction of arrow ? so the electrical connectors are accessible.

X Disconnect electrical connectors. X Remove side trim panel = completely.

X Connect electrical connectors. X Reinstall side trim panel =.

Shackles B in side trim panel = must be hooked in side wall C.

X Reinstall edge protection :. X Close the tailgate. X Store the tool bag with the vehicle tools in

the designated storage compartment.

Brush guard

A Socket wrench X Take the tool bag out of its storage

compartment (Y page 194).

X Take socket wrench A out of the tool bag. X Closing/raising: Turn socket wrench A

clockwise.

X Opening/lowering: Turn socket wrench

A counterclockwise.

G Warning! The brush guard is designed solely to enhance the appearance of the vehicle and help protect grille and headlights from minor mishaps, either on- or off road. Since the safety characteristics are limited in the event of an accident, brush guard are not intended to prevent injury or damage in the event of an accident. Also check state and local regulations on installation and use. Raise and lower brush guard in an open space with plenty of room.

i Only lower brush guard to clean

headlamps.

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225

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/provinces 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. 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 221).

X Insert mechanical key : in direction of

arrow in side opening.

X Using mechanical key :, push slide ; to

unlatch battery compartment =.

X Pull battery compartment = out of the SmartKey housing in direction of arrow.

X Lowering: While holding brush guard

firmly, open quick lock ; using locking and unlocking handle :.

X Gently lower brush guard until it reaches its

fully lowered position.

X Raising and securing: Flip up brush guard

until it contacts end stop joint ?. Quick lock stop pin must engage the cross slot recess in lock =.

X Now turn quick lock ; so that quick lock ; makes contact with end stop joint ?.

X Lock quick lock ; on both sides of brush

guard using locking and unlocking handle :.

! Make sure both quick stop pins are

seated fully in lock.

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!