2010 Mercedes-benz CLS Class Owners Manual

Operator’s Manual

PRE-SAFE

Inoperativ e See Operator’s Manual

Possible causes/consequences and X Solutions The brake system is still functioning normally but due to a malfunction, the ABS, the BAS, the ESP®, and the PRE- SAFE® system are unavailable. X Continue driving with added caution. Wheels may lock

during hard braking, reducing steering capability.

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 brake system still functions normally but due to insufficient power supply, the ABS, the BAS, the ESP®, and the PRE-SAFE® system are unavailable. When the voltage is above the required value again, the ABS, the BAS, the ESP®, and the PRE-SAFE® system are operational again and the message should disappear. X If the message does not disappear: Have the system

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

The brake system is still functioning normally but due to a malfunction the BAS, the ESP®, and the PRE-SAFE® system are unavailable. The ABS may not be operational. X Continue driving with added caution. Wheels may lock

during hard braking, reducing steering capability.

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 PRE-SAFE® system has failed. All other occupant safety systems, such as the air bags, are still available. X Contact an authorized Mercedes-Benz Center as soon as

possible.

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Display messages Front Passenger Airbag Enabled See Operator’s Manual

Possible causes/consequences and X Solutions USA only: The front passenger front air bag is activated while driving even though a child, small individual, or object below the system’s weight threshold is on the front passenger seat, or the front passenger seat is empty. Objects on the seat or forces acting on the seat may make the system sense supplemental weight. X Stop the vehicle in a safe location as soon as possible. X Engage the parking brake. X Switch off the ignition. X Open the front passenger door. X Remove child and child restraint from front passenger seat

and properly secure the child in rear seat employing the child restraint if necessary.

X Remove any other items from on and around the front

passenger seat and make sure the storage bag on the back of the front passenger seat is empty.

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 and sense that an occupant on the front passenger seat is of a greater weight than actually present.

X Keep the seat unoccupied, close the front passenger door

and switch on the ignition.

Monitor the 04 indicator lamp in the center console (Y page 44) and the multifunction display in the instrument cluster (Y page 28) for the following: With the seat unoccupied and the ignition switched on, Rthe 04 indicator lamp in the center console should illuminate and remain illuminated, indicating that the OCS (Y page 41) 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.

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Display messages

Possible causes/consequences and X Solutions If above conditions are met, you can occupy the front passenger seat again. Depending on the front passenger classification sensed by the OCS, the 04
indicator lamp will remain illuminated or go out. If above conditions are not met, the system is not working properly. Have the system checked at an authorized Mercedes-Benz Center as soon as possible.

G Warning! If the 04 indicator lamp remains out even after performing the above corrective steps, do not have any children 12 years old and under and other small individuals use the front passenger seat until the system has been repaired.

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Display messages Front Passenger Airbag Disabled See Operator’s Manual

Possible causes/consequences and X Solutions 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. 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 78). 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 04 indicator lamp in the center console (Y page 44) and the multifunction display in the instrument cluster (Y page 28) for the following: With the seat unoccupied and the ignition switched on, Rthe 04 indicator lamp in the center console should illuminate and remain illuminated, indicating that the OCS (Y page 41) 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 04
indicator lamp will remain illuminated or go out. If above conditions are not met, the system is not working properly. Have the system checked at an authorized Mercedes-Benz Center as soon as possible.

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G Warning! If the 04 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 Cruise Control And SPEEDTRONI Cruise Control

Inoperativ

- - - MPH

DISTRONIC

- - - MPH

DISTRONIC

Inoperativ

DISTRONIC

Override

Possible causes/consequences and X Solutions The cruise control is malfunctioning. X Have the cruise control checked at an authorized

Mercedes-Benz Center.

One of the activation conditions for cruise control has not been fulfilled. You may 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 128).

One of the activation conditions for Distronic has not been fulfilled. You may 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 Distronic

(Y page 133).

The Distronic or the display are malfunctioning. X Contact an authorized Mercedes-Benz Center as soon as

possible.

You have accelerated. The Distronic has switched off. X Stop accelerating.

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Display messages DISTRONIC

Currently Unavailabl See Operator’s Manual

DISTRONIC

Currently Unavailabl See Operator’s Manual

Possible causes/consequences and X Solutions Distronic is deactivated because: RThe Distronic cover in the radiator grille is dirty. RThe functionality is impaired by heavy precipitation or fog. RThe system is overheated. X If necessary, clean the Distronic cover in the area of the

radiator grille (Y page 219).

X If necessary, wait until the system has cooled down. X Restart the vehicle. Distronic becomes operational again without the engine being restarted when Rdirt on the radiator grille has fallen off while driving (e.g.

slush or snow)

Rthe system recognizes full sensor availability (due to

lessening rain or the road surface drying)

Rthe message in the multifunction display disappears Rthe speed last stored flashes in the display for 5 seconds You can then operate Distronic as usual again. Distronic is deactivated because the functionality is impaired by external interferences, e.g. high-frequency sources such as toll stations, speed measuring systems etc. X Leave the area of the external interference. X Activate Distronic again (Y page 133) when the message in

the multifunction display disappears.

Distronic is deactivated because the Distronic sensor has not sensed any other vehicles or objects, e.g. road sign or such, for a long time. X Activate Distronic again (Y page 133) when the message in

the multifunction display disappears.

G Warning! Distronic cannot take weather conditions into account. Switch off Distronic or do not turn it on if the sensor is dirty or visibility is diminished as a result of snow, rain or fog. The distance control may be impaired even before

the system is able to detect a dirty sensor. The message DISTRONIC Currently Unavailable See Operator’s Manual will be displayed in the multifunction display and Distronic will be turned off.

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Vehicle

Display messages Gear Selector Lever In P Position

Please Shift To N or P

P/N

Tires

Possible causes/consequences and X Solutions You have opened the driver’s door while the engine was not running and the automatic transmission was not in park position P. X Shift the automatic transmission into park position P. You have attempted to turn off the engine with the KEYLESS- GO start/stop button while the automatic transmission was not in park position P. X Shift the automatic transmission into park position P. 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.

Display messages Check then tires, restart Run Flat Indicator.

Run Flat Indicator

Inoperativ

Possible causes/consequences and X Solutions There has been a warning message about a loss in the tire inflation pressure and the tire pressure loss warning system was not restarted yet. X Make sure the correct tire inflation pressure is set for each

tire.

X Then restart the tire pressure loss warning system

(Y page 186).

The tire pressure loss warning system is malfunctioning. X Have the tire pressure loss warning system checked at an

authorized Mercedes-Benz Center.

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Display messages Check Tire tires Pressure

Possible causes/consequences and X Solutions The tire pressure loss warning system indicates that the tire inflation pressure is too low 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.

Tire pressure

Tire Pressure Monitor

Tire Pressure Monitor

is only displayed after driving for a few minutes. Inoperativ

Inoperativ e No Wheel Sensors

X Check the tires and, if necessary, change the wheel

X Check and adjust tire inflation pressure as required

(Y page 271).

(Y page 185).

X Restart the tire pressure loss warning system after

adjusting the tire inflation pressure values (Y page 186). Vehicles with Advanced TPMS (Canada only): The tire inflation pressure is being checked. X Drive the vehicle for a few minutes.

The TPMS (USA only) or Advanced TPMS (Canada only) is malfunctioning. X Have the TPMS or Advanced TPMS checked at an

authorized Mercedes-Benz Center.

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

authorized Mercedes-Benz Center.

X Have the appropriate wheel sensors installed at an

authorized Mercedes-Benz Center.

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Display messages Tire Pres. Monitor

Wheel Sensor Missing

Tire Pressure Monitor

Currently Unavailabl

Please correct the tire pressure.

Caution Tire Pressure Tire Defect

Possible causes/consequences and X Solutions Vehicles with Advanced TPMS (Canada only): At least one sensor is 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.

At least one wheel without appropriate wheel sensors is mounted (e.g. spare wheel). 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.

The TPMS (USA only) or Advanced TPMS (Canada only) cannot 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 rectified, the TPMS or Advanced TPMS becomes active again automatically after a few minutes of driving. Vehicles with Advanced TPMS (Canada only): The tire inflation pressure is too low in at least one tire. or The tire inflation pressures of the individual tires differ from each other significantly. The tire inflation pressure values are shown in the multifunction display. X Check and correct tire inflation pressure as required

(Y page 185).

X Restart the Advanced TMPS (Y page 192). Vehicles with Advanced TPMS (Canada only): At least one tire is 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 271).

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Display messages Check Tires

Possible causes/consequences and X Solutions Vehicles with Advanced TPMS (Canada only): The tire inflation pressure in at least one tire is significantly below the reference 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 inflation pressure as required. X If necessary, change the wheel (Y page 271).

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 # Brake Wear The brake pads have reached their wear limit.

Possible causes/consequences and X Solutions

X Have the brake pads replaced as soon as possible at an

authorized Mercedes-Benz Center.

! 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 EBV, ABS, ESP Inoperativ (USA only) e See Operator’s (Canada Man. only)

Release Parking Brake

Check Brake Fluid Level

(USA only) (Canada only) (USA only) (Canada only)

Possible causes/consequences and X Solutions The brake system is still functioning normally but due to a malfunction, the ABS, the BAS, the EBP, the ESP®, and the PRE-SAFE® system 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.

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

+ Restraint System Malfunctio Service Required

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.

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.

Driving systems

Display messages ¨ Vehicle Rising ¨ Vehicle Rising Please Wait ¨ STOP Vehicle Too Low

Possible causes/consequences and X Solutions The vehicle is adjusting to your level selection.

The vehicle level is too low. X Wait until the message disappears from the multifunction

display.

The AIRMATIC DC is malfunctioning. X Avoid excessive steering maneuvers. The fenders or tires could otherwise be damaged. Listen for scraping noises.

X Do not drive faster than 50 mph (80 km/h). X Drive to the side of the road and select a higher vehicle level

(Y page 138). Depending on the type of malfunction, this may raise the vehicle’s level.

X Contact an authorized Mercedes-Benz Center as soon as

possible.

There is otherwise danger of an accident.

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Display messages ¨ Malfunctio

Possible causes/consequences and X Solutions The system is functional only to a limited extent. The system display or the system is malfunctioning. X Do not drive faster than 50 mph (80 km/h). X Have the vehicle checked at an authorized Mercedes-Benz

Center.

Vehicle

Display messages

+ Key

Detected In Vehicle + Please don’t forget your key.

Possible causes/consequences and X Solutions The trunk is open. X Close the trunk (Y page 72). 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 179). There is otherwise danger of an accident. You are driving with at least one door open. X Close all doors. A SmartKey with KEYLESS-GO left in the vehicle was recognized while trying to lock the vehicle from the outside. X Take the SmartKey out of the vehicle. This message 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. X Take the SmartKey with you when leaving the vehicle.

+ Remove Key You have forgotten to remove the SmartKey. + Please get a new key. + Change Key Batteries

X Remove the SmartKey from the starter switch. The SmartKey is malfunctioning. X Contact an authorized Mercedes-Benz Center.

The batteries in the SmartKey with KEYLESS-GO are discharged. X Replace the batteries (Y page 264).

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Display messages + Key Not Detected (message appears in red)

+ Key Not Detected (message appears in red)

+ Key Not Detected (message appears in white) Ready

~ Bluetooth

¥ Top Up Washer Fluid

Possible causes/consequences and X Solutions The SmartKey with KEYLESS-GO is not detected while the engine is running because the SmartKey is not in the vehicle. 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.

The SmartKey with KEYLESS-GO is not detected while the engine is running because there is strong radio-frequency interference. 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. The SmartKey with KEYLESS-GO is momentarily not detected. X Change the position of the SmartKey in the vehicle. X Operate the vehicle with the SmartKey in the starter switch

if necessary.

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

Bluetooth®.

The fluid level has dropped to approximately 1/3 of total reservoir capacity. X Add washer fluid (Y page 181).

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Engine

Engine Service

Display messages (USA only) (Canada only)

; Display Malfunctio Service Required + Top Up Coolant See Operator’s Man.

Possible causes/consequences and X Solutions There may be a malfunction in Rthe fuel management system Rthe ignition system Rthe exhaust system Rthe fuel system X Have the engine checkedas soon as possible at an

authorized Mercedes-Benz Center.

Certain electronic systems are unable to relay information to the control system. The coolant temperature display 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 180). 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.

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Display messages ? Coolant Stop Vehicle, 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 indicator 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 Vehicle, 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 indicator in the

instrument cluster.

X Drive to the nearest authorized Mercedes-Benz Center

immediately.

The radiator cooling fan is malfunctioning. X Observe the coolant temperature indicator 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 Ra malfunction in the electronic system 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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Display messages # Low Voltage Start Engine 4 Check oil level at next refueling.

Possible causes/consequences and X Solutions The battery has insufficient voltage. X Start the engine.

The engine oil has dropped to a critical level. X Check the engine oil level (Y page 179) and add engine oil

as required (Y page 180).

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

checked for possible leaks.

If the message Check 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. Display messages 7 Reserve 7 Gas Cap Is Open

Fuel

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 The fuel level is low. X Refuel at the next gas station. 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 leaking. X Check the fuel cap (Y page 177). 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.

¸ Replace

Air Filter The air filter is clogged.

X Have the air filter checked at an authorized Mercedes-Benz

Center.

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Lamps

Display messages b Active

Headlamps Inoperativ b Active Headlamps Auxiliary Bulb On b Reverse Lamp Left orReverse Lamp Right b Brake-/ Tail Lamp Left Auxiliary Bulb On orBrake-/ Tail Lamp Right Auxiliary Bulb On b 3rd Brake Lamp

b Front Foglamp Left orFront Foglamp Right

Possible causes/consequences and X Solutions The active Bi-Xenon headlamp system is malfunctioning. X Contact an authorized Mercedes-Benz Center as soon as

possible.

The active Bi-Xenon headlamps are malfunctioning. Another light is being used. X Contact an authorized Mercedes-Benz Center as soon as

possible.

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

possible.

The left or right brake/tail 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 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 Contact an authorized Mercedes-Benz Center as soon as

possible.

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Display messages b Marker Lamp Front Left orMarker Lamp Front Right b Parking Lamp Front Left Auxiliary Bulb On orParking Lamp Front Right Auxiliary Bulb On b High Beam Left orHigh Beam Right b License Plate Lamp Left orLicense Plate Lamp Right b AUTO- Light Inoperativ

Possible causes/consequences and X Solutions The front left side or right side marker lamp is malfunctioning. X Contact an authorized Mercedes-Benz Center as soon as

possible.

The left or right front parking lamp is malfunctioning. A substitute bulb is being used. X Halogen headlamp: Replace the bulb as soon as possible

(Y page 266).

X Bi-Xenon headlamp: Contact an authorized Mercedes-

Benz Center as soon as possible.

The left or right high-beam lamp is malfunctioning. X Replace the bulb as soon as possible (Y page 266).

The left or right license plate lamp is malfunctioning. X Replace the bulb as soon as possible (Y page 266).

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 121).

(Y page 87).

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249

Display messages b Low Beam Left orLow Beam Right

b Rear Left

Foglamp b Switch

Possible causes/consequences and X Solutions The left or right low-beam lamp is malfunctioning. X Halogen headlamp: Replace the bulb as soon as possible

(Y page 266).

X Bi-Xenon headlamp: Contact an authorized Mercedes-

Benz Center as soon as possible.

The rear fog lamp is malfunctioning. X Contact an authorized Mercedes-Benz Center as soon as

possible.

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

b Tail Lamp Left Auxiliary Bulb On orTail Lamp Right Auxiliary Bulb On b Cornering Lamp Left orCornering Lamp Right b Rear Left Turn Signal orRear Right Turn Signal

(Y page 87).

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

lamp switch to its stop.

The left or right tail lamp is malfunctioning. A substitute bulb is being used. X Contact an authorized Mercedes-Benz Center as soon as

possible.

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

possible.

The left or right rear turn signal lamp is malfunctioning. X Contact an authorized Mercedes-Benz Center as soon as

possible.

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250 Vehicle status messages in the multifunction display

Display messages b Front Left Turn Signal orFront Right Turn Signal b Left Mirror Turn Signal orRight Mirror Turn Signal

Tires

Display messages h Please correct the tire pressure.

h Tire Pressure Caution Tire Defect h Tire Pressure Check Tires

Possible causes/consequences and X Solutions The left or right front turn signal lamp is malfunctioning. X Replace the bulb as soon as possible (Y page 266).

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

(Y page 185).

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

steering and braking maneuvers.

X If necessary, change the wheel (Y page 271).

The tire inflation pressure in at least one tire is significantly below the reference value. X Carefully bring the vehicle to a halt, avoiding abrupt

steering and braking maneuvers.

X Check and adjust tire inflation pressure as required. X If necessary, change the wheel (Y page 271).

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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 in the instrument cluster come on. The low- beam headlamp indicator lamp, high-beam headlamp indicator lamp, and turn signal indicator lamps will only come on if activated. 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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252 What to do if …

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

hard braking, reducing steering capability.

X Adjust driving to be consistent with reduced braking

responsiveness.

X Read and observe messages that may appear in the

multifunction display (Y page 228).

X Have the system checked at an authorized Mercedes-Benz

Center as soon as possible.

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

Failure to follow these instructions increases the risk of an accident. The ABS has switched off due to insufficient power supply. The battery might not be charged sufficiently. When the voltage is above the required value again, the ABS is operational again. The ABS indicator lamp should go out. X 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 Read and observe messages that may appear in the

multifunction display (Y page 228).

X If the ABS indicator lamp does not go out: Have the alternator

and the battery checked.

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

$ (USA only) J (Canada only) The red brake warning lamp comes on while driving and an acoustic warning sounds.

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Problem $ (USA only) J (Canada only) The red brake warning lamp comes on while the engine is running and an acoustic warning sounds.

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

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

multifunction display (Y page 228).

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.

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. 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.

Safety systems

Problem 7 The red seat belt

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

7 The red seat belt

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

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254 What to do if …

Problem 7 The red seat belt

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

7 The red seat belt

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

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

The seat belt telltale goes out.

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

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

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

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

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

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

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

Possible causes/consequences and 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-

indicator lamp comes on while driving.

Benz Center.

G Warning! In the event a malfunction of the SRS is indicated as outlined above, the SRS may not be operational.

For your safety, we strongly recommend that you contact an authorized Mercedes-Benz Center immediately to have the system checked. Otherwise the SRS may not be activated when needed in an accident, which could result in serious or fatal injury, or it

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might deploy unexpectedly and unnecessarily which could also result in injury.

Problem d The yellow ESP®

warning lamp comes on while the engine is running.

d The yellow ESP®

warning lamp comes on while the engine is running.

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. X Switch the ESP® back on. Exceptions: (Y page 60).

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

to the prevailing road and weather conditions.

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

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

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

multifunction display.

X Continue driving with added caution. Wheels may lock during

hard braking, reducing steering capability.

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.

The ESP® or the Electronic Traction System (ETS) has come into operation because of detected traction loss in at least one tire. 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 60).

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

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Driving systems

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Problem · The red distance

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

Possible causes/consequences and X Solutions You are gaining too rapidly on the vehicle ahead of you or the distance warning system has recognized a stationary obstacle on