2012 Mercedes-benz CL Class Owners Manual

Ra torn poly-V-belt Ra malfunction in the electronics X Pull over and stop the vehicle safely and switch off the engine,

paying attention to road and traffic conditions.

X Open the hood. X Check whether the poly-V-belt is torn. If the poly-V-belt is torn: ! Do not continue driving. The engine could otherwise overheat. X Consult a qualified specialist workshop. If the poly-V-belt is not damaged: X Visit a qualified specialist workshop.

Check Engine Oil at Next Refueling

Check Engine Oil Level (Add 1 quart) (USA only)Check Engine Oil Level (Add 1 Liter) (Canada only)

Vehicles with an oil dipstick: the oil level has dropped to the minimum level. X Check the engine oil level at the latest when next refueling

(Y page 409).

X If necessary, add engine oil (Y page 410). X If engine oil needs to be added more often than usual, have the

engine checked at a qualified specialist workshop.

Vehicles without an oil dipstick: the engine oil level is too low. X Check the oil level (Y page 409). X If necessary, add engine oil (Y page 409). X If engine oil needs to be added more often than usual, have the

engine checked at a qualified specialist workshop.

Information on approved engine oils can be obtained from any qualified specialist workshop or on the Internet at http://www.mbusa.com (USA only).

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! The oil level is too low. Avoid long journeys with too little engine oil. There is a risk of

engine damage. The display messages and the corresponding symbol that indicate that the oil level is too low must not be ignored. Display messages Engine Oil Level Low Stop Vehicle Turn Engine Off

Possible causes/consequences and M Solutions Vehicles without an oil dipstick: the engine oil level is too low. There is a risk of engine damage. X Pull over and stop the vehicle safely and switch off the engine,

paying attention to road and traffic conditions.

X Apply the parking brake. X Add engine oil (Y page 410) and check the oil level

(Y page 409).

Engine Oil Level Too High

Vehicles without an oil dipstick: you have added too much engine oil. There is a risk of damage to the engine or to the catalytic converter. X Have the excess oil siphoned off at a qualified specialist

workshop. Observe the legal requirements.

Vehicles without an oil dipstick: the measuring system is defective. X Visit a qualified specialist workshop.

Engine Oil Level Cannot Be Measured Reserve Fuel C There is only a very small amount of fuel in the fuel tank.

The fuel level has dropped into the reserve range. X Refuel at the nearest gas station.

Gas Cap Loose

X Refuel at the nearest gas station without fail. The fuel system pressure is too low. The fuel filler cap is not closed correctly or the fuel system is leaking. X Check that the fuel filler cap is correctly closed. If the fuel filler cap is not correctly closed: X Close the fuel filler cap. If the fuel filler cap is correctly closed: X Visit a qualified specialist workshop.

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Driving systems Display messages À Attention Assist: Pause!

À Attention Assist Inoperative Á Night View Assist Inoperative Á Night View Assist Currently Unavailable

Á Night View Assist Lights Must Be Set to AUTO or ON Á Night View Assist Not In Reverse Gear Á Night View Assist Lights ON or AUTO, Not in R Gear

Possible causes/consequences and M Solutions Based on specific criteria, ATTENTION ASSIST has determined that the driver is tired or paying less attention. A warning tone also sounds. X If necessary, take a break. During long journeys, take regular breaks in good time so you get enough rest.

ATTENTION ASSIST has failed. X Visit a qualified specialist workshop.

Night View Assist Plus is defective. X Visit a qualified specialist workshop.

The temperature of the camera is too high. X Wait until you see the Night View Assist Available Again display message. You can also: X Fold the camera cover down (Y page 419). X Adjust the air distribution of the automatic air conditioning

upwards.

A condition for activating Night View Assist Plus has not been fulfilled. X Turn the light switch to c or L.

A condition for activating Night View Assist Plus has not been fulfilled. X Shift the transmission to P, N or D.

A condition for activating Night View Assist Plus has not been fulfilled. X Turn the light switch to c or L. X Shift the transmission to P, N or D.

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Display messages Á Night View Assist Only When It Is Dark ¨ Vehicle Rising ¨ Vehicle Rising Please Wait Briefly

¨ STOP Car Too Low

¨ Malfunction

Possible causes/consequences and M Solutions You have attempted to activate Night View Assist Plus in the daytime. Night View Assist Plus can only be activated when it is dark.

Your vehicle is adjusting to the level you have selected.

The vehicle level is too low when the vehicle is stationary. A warning tone also sounds. X Do not pull away.

The vehicle level is set when the display message disappears.

You have pulled away while the vehicle level is still too low. AIRMATIC sets the vehicle to the selected level after a short period. X Pull over and stop the vehicle safely as soon as possible, paying

attention to road and traffic conditions.

X Apply the electric parking brake. X Wait until the display message disappears before pulling away. G Risk of accident AIRMATIC is defective. A warning tone also sounds. X Do not drive faster than 50 mph (80 km/h). X Make only slight steering movements. Otherwise, the front

fender or the tires could be damaged if the steering movement is too large.

X Listen for scraping sounds. X Pull over and stop the vehicle safely, paying attention to road

and traffic conditions, and select a higher vehicle level. Depending on the malfunction, it may be possible to raise the vehicle.

X Visit a qualified specialist workshop. G Risk of accident The AIRMATIC function is restricted. The vehicle's handling characteristics may be affected. X Do not drive faster than 50 mph (80 km/h). X Visit a qualified specialist workshop.

368 Display messages

Display messages ABC Malfunction Stop Vehicle

ABC Vehicle Rising Please Wait Briefly ABC Malfunction

HOLD Off

Possible causes/consequences and M Solutions The ABC (Active Body Control) vehicle level is too low. X Pull over and stop the vehicle safely as soon as possible, paying

attention to road and traffic conditions. After a few seconds, the vehicle level is adjusted and the display message disappears.

The vehicle is leaking oil. The display message is shown continuously. X Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions. Do not continue driving under any circumstances.

X Notify a qualified specialist workshop or breakdown service. The display message is shown continuously. ABC is malfunctioning. X Do not drive faster than 50 mph (80 km/h). X Make only slight steering movements. Otherwise, the front

fender or the tires could be damaged if the steering movement is too large.

X Listen for scraping sounds. X Visit a qualified specialist workshop. The ABC vehicle level is too low when the vehicle is stationary. X Do not pull away.

The vehicle level is set when the display message disappears.

The ABC function is restricted. The vehicle's handling characteristics may be affected. X Do not drive faster than 50 mph (80 km/h). X Visit a qualified specialist workshop. The HOLD function is deactivated. The vehicle is skidding. A warning tone also sounds. X Reactivate the HOLD function later (Y page 302).

The HOLD function is deactivated. When the brake pedal is firmly depressed, an activation condition is not fulfilled. A warning tone also sounds. X Check the activation conditions for the HOLD function

(Y page 302).

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Display messages Radar Sensors Deactivated See Oper. Manual Active Lane Keeping Assist Currently Unavailable See Oper. Manual

Active Lane Keeping Assist Inoperative Active Blind Spot Assist Currently Unavailable, See Oper. Manual

Possible causes/consequences and M Solutions The radar sensor system is deactivated. X Switch on the radar sensor system (Y page 344).

Active Lane Keeping Assist is deactivated and temporarily inoperative if: Rthe windshield is dirty in the camera's field of vision. Rvisibility is impaired due to heavy rain, snow or fog. Rthere are no lane markings for a longer period. Rthe lane markings are worn, dark or covered, for example by dirt

or snow.

Active Lane Keeping Assist is operational again and the display message disappears if: Rthe dirt (e.g. slush) drops away while the vehicle is in motion. Rthe system recognizes that the camera is fully operational again. If the display message continues to be displayed: X Clean the windshield.

Active Lane Keeping Assist is defective. X Visit a qualified specialist workshop.

Active Blind Spot Assist is temporarily inoperative if: Rthe sensors are dirty. Rits function is impaired due to heavy rain or snow. Rthe radar sensor system is outside the operating temperature

range.

Rthe radar sensor system is temporarily inoperative, e.g. due to

electromagnetic radiation emitted by nearby TV or radio stations or other sources of electromagnetic radiation.

The yellow 9 indicator lamps also light up in the exterior mirrors. Active Blind Spot Assist is operational again and the display message disappears if: Rthe dirt (e.g. slush) drops away while the vehicle is in motion. Rthe system detects that the sensors are fully available again. Rthe radar sensor system is back within the operating

temperature range.

If the display message continues to be displayed: X Clean the sensors (Y page 418). X Restart the engine.

370 Display messages

Display messages Active Blind Spot Assist Inoperative

Parking Guidance Inoperative

Parking Guidance Canceled

Parking Guidance Finished DISTRONIC PLUS Off DISTRONIC PLUS Available Again

Possible causes/consequences and M Solutions Active Blind Spot Assist is defective. The yellow 9 indicator lamps also light up in the exterior mirrors. X Visit a qualified specialist workshop. Parking Guidance is malfunctioning (Y page 310). X Restart the engine. If the display message continues to be displayed: X Visit a qualified specialist workshop.

Parking Guidance has been deactivated because: Rthe vehicle is skidding. Rthe sensors are dirty. Ra malfunction has occurred. X Reactivate Parking Guidance later (Y page 310). If the parking space symbol is not displayed in the multifunction display when you are driving at a speed of less than 19 mph (30 km/h): X Clean the sensors (Y page 418). X Restart the engine. If the parking space symbol is still not displayed in the multifunction display when you are driving at a speed of less than 19 mph (30 km/h): X Visit a qualified specialist workshop. Parking Guidance has been deactivated because you are no longer following the recommended path. X Park again and, while doing so, observe the display messages

in the multifunction display.

The vehicle is parked. A warning tone also sounds. The display message disappears automatically. DISTRONIC PLUS has been deactivated (Y page 292). If it was deactivated automatically, a warning tone also sounds.

DISTRONIC PLUS is operational again after having been temporarily unavailable. You can now reactivate DISTRONIC PLUS (Y page 292).

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Display messages DISTRONIC PLUS Currently Unavailable See Operator's Manual

DISTRONIC PLUS Inoperative

DISTRONIC PLUS Override

DISTRONIC PLUS --- mph

Possible causes/consequences and M Solutions DISTRONIC PLUS is deactivated and is temporarily inoperative if: Rthe DISTRONIC PLUS cover in the radiator grill is dirty. Rits function is impaired due to heavy rain or snow. Rthe sensors in the bumpers are dirty. Rthe radar sensor system is temporarily inoperative, e.g. due to

electromagnetic radiation emitted by nearby TV or radio stations or other sources of electromagnetic radiation. Rthe system is outside the operating temperature range. Rthe on-board voltage is too low. A warning tone also sounds. DISTRONIC PLUS is operational again and the display message disappears if: Rthe dirt (e.g. slush) drops away while the vehicle is in motion. Rthe system detects that the sensors are fully available again. Rthe system is within the operating temperature range. If the display message continues to be displayed: X Clean the DISTRONIC PLUS cover in the radiator grill

(Y page 418).

X Clean the bumpers (Y page 418). X Restart the engine. DISTRONIC PLUS is defective. BAS PLUS (Brake Assist PLUS) and PRE-SAFE® Brake may be inoperative as well. A warning tone also sounds. X Visit a qualified specialist workshop. You have depressed the accelerator pedal. DISTRONIC PLUS is no longer controlling the speed of the vehicle. X Take your foot off the accelerator pedal. An activation condition for DISTRONIC PLUS is not fulfilled. X Check the activation conditions for DISTRONIC PLUS

(Y page 292).

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Display messages Cruise Control Inoperative

Cruise Control --- mph

Possible causes/consequences and M Solutions Cruise control is defective. A warning tone also sounds. X Visit a qualified specialist workshop.

A condition for activating cruise control has not been fulfilled. You attempted to save a speed of less than 20 mph (30 km/h). X If the situation allows, drive faster than 20 mph (30 km/h) and

save the speed.

X Check the activation conditions for cruise control

(Y page 290).

Tires 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.

Display messages Tire pressures Displayed After Driving A Few Minutes Tire Pressure Monitor Inoperative Tire Pressure Monitor Inoperative No Wheel Sensors

Possible causes/consequences and M Solutions The tire pressure monitor is measuring the tire pressure. X Drive on.

The tire pressures appear in the multifunction display after you have been driving for a few minutes.

The tire pressure monitor is defective. X Visit a qualified specialist workshop.

The wheels mounted do not have a suitable tire pressure sensor. The tire pressure monitor is deactivated. X Mount wheels with suitable tire pressure sensors.

The tire pressure monitor is activated automatically after driving for a few minutes.

Display messages Check Tires

Caution Tire Defect

Tire Pressure Please Rectify

Wheel sensor(s) Missing

Tire Pressure Monitor Currently Unavailable

Tire Press. Warning Caution Tire Malfunction

Display messages

373

Possible causes/consequences and M Solutions G Risk of accident The tire pressure in one or more tires has dropped significantly. The wheel position is displayed in the multifunction display. A warning tone also sounds. X Stop the vehicle without making any sudden steering or braking maneuvers. Pay attention to the traffic conditions as you do so.

X Correct the tire pressure (Y page 449). X If necessary, change a wheel (Y page 465). G Risk of accident The tire pressure in one or more tires has dropped suddenly. The wheel position is displayed in the multifunction display. X Stop the vehicle without making any sudden steering or braking maneuvers. Pay attention to the traffic conditions as you do so.

X If necessary, change a wheel (Y page 465). The tire pressure is too low in at least one of the tires or the tire pressure difference between the wheels is too great. X Check the tire pressures at the next opportunity. If necessary,

correct the tire pressure (Y page 449).

X Restart the tire pressure monitor (Y page 451). There is no signal from the tire pressure sensor of one or several wheels. The pressure of the affected tire is not displayed in the multifunction display. X Have the defective tire pressure sensor replaced at a qualified

specialist workshop.

Due to a source of radio interference, no signals can be received from the wheel sensors. The tire pressure monitor is temporarily malfunctioning. X Drive on.

The tire pressure monitor restarts automatically as soon as the problem has been solved. G Risk of accident The tire pressure in one or more tires has dropped suddenly. A warning tone also sounds. X Stop the vehicle without making any sudden steering or braking maneuvers. Pay attention to the traffic conditions as you do so.

X If necessary, change a wheel (Y page 465).

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Display messages Check Tire Pressure

Correct Tire Pressure

Vehicle Display messages Shift to P or N to Start Engine

Auxiliary Battery Malfunction (White display message) Auxiliary Battery Malfunction (Red display message)

Apply Brake to Shift from 'P'

Possible causes/consequences and M Solutions G Risk of accident The tire pressure in one or more tires has dropped significantly. X Stop the vehicle without making any sudden steering or braking maneuvers. Pay attention to the traffic conditions as you do so.

X If necessary, change a wheel (Y page 465). X Check the tire pressure. If necessary, correct the tire pressure

(Y page 449).

The tire pressure is too low in at least one of the tires or the tire pressure difference between the wheels is too great. X Check the tire pressures at the next opportunity. If necessary,

correct the tire pressure (Y page 449).

Possible causes/consequences and M Solutions You have attempted to start the engine with the transmission in position R or D. X Shift the transmission to position P or N.

The auxiliary battery for the automatic transmission is no longer being charged. X Visit a qualified specialist workshop.

The auxiliary battery for the automatic transmission is discharged. If there is a malfunction in the vehicle's electrical system, you may not be able to change the transmission position. X Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions. Do not continue driving under any circumstances.

X Consult a qualified specialist workshop. You have attempted to move the transmission selector lever to position D, R or N without depressing the brake pedal. X Depress the brake pedal.

Door Open Vehicle Not in Park The driver's door is open and the transmission is in position R, N

or D. X Shift the transmission to position P. X Apply the electric parking brake.

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Display messages Service Required Do Not Shift Gears

Possible causes/consequences and M Solutions You cannot change the transmission position due to a malfunction. A warning tone also sounds. If transmission position D is selected: X Drive to a qualified specialist workshop without shifting the

transmission from position D.

attention to road and traffic conditions.

If transmission position R, N or P is selected: X Notify a qualified specialist workshop or breakdown service. The vehicle is moving. X Pull over and stop the vehicle safely as soon as possible, paying

Only Shift to Position P When Vehicle Is Stationary N The trunk lid is open. X Close the trunk lid. G Risk of accident The hood is open. X Pull over and stop the vehicle safely as soon as possible, paying

X Shift the transmission to position P.

attention to road and traffic conditions.

X Apply the electric parking brake. X Close the hood.

C At least one door is open.

X Close all the doors.

Lock Seat Backrest Front LeftorLock Seat Backrest Front Right

The driver's or front passenger's seat backrest is not engaged. The seat belt will have no effect. X Push the backrest back until it engages.

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Display messages Power Steering Malfunction See Oper. Manual

Possible causes/consequences and M Solutions G Risk of accident The power steering is malfunctioning. You will need to use more force to steer. X Check whether you are able to apply the extra force required. X If you are able to steer safely: carefully drive on to a qualified

specialist workshop.

X If you are unable to steer safely: do not drive on. Contact the

nearest qualified specialist workshop.

¥ Check Washer Fluid

The washer fluid level in the washer fluid reservoir has dropped below the minimum. X Add washer fluid (Y page 412).

SmartKey Display messages  Key Does Not Belong to Vehicle  Take Your Key From Ignition  Obtain a New Key  Replace Key Battery  Don't Forget Your Key

Possible causes/consequences and M Solutions You have put the wrong SmartKey in the ignition lock. X Use the correct SmartKey.

The SmartKey is in the ignition lock. X Remove the SmartKey.

The SmartKey needs to be replaced. X Visit a qualified specialist workshop.

The batteries of the KEYLESS-GO key are discharged. X Change the batteries (Y page 76).

The display message is shown for a maximum of 60 seconds and is only a reminder. You have opened the driver's door with the engine switched off. The KEYLESS-GO key is not in the ignition lock. X Remember to take the KEYLESS-GO key with you when you

leave the vehicle.

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Display messages  Key Not Detected (Red display message)

 Key Not Detected (White display message)

 Key Detected In Vehicle  Remove 'Start' Button and Insert Key  Close Doors to Lock Vehicle

Possible causes/consequences and M Solutions The KEYLESS-GO key is not in the vehicle. A warning tone also sounds. If the engine is switched off, you can no longer lock the vehicle centrally or start the engine. X Pull over and stop the vehicle safely as soon as possible, paying

attention to road and traffic conditions.

X Engage the electric parking brake. X Locate the KEYLESS-GO key. The KEYLESS-GO key is not detected while the engine is running because there is interference from a strong source of radio waves. A warning tone also sounds. X Pull over and stop the vehicle safely as soon as possible, paying

attention to road and traffic conditions.

X Engage the electric parking brake. X Operate the vehicle with the SmartKey in the ignition lock. The KEYLESS-GO key cannot be detected at present. X Change the location of the key with the KEYLESS-GO functions

in the vehicle.

If the KEYLESS-GO key is still not detected: X Operate the vehicle with the SmartKey in the ignition lock. The KEYLESS-GO key has been detected inside the vehicle during locking. X Remove the KEYLESS-GO key from the vehicle.

KEYLESS-GO is temporarily malfunctioning or is defective. X Insert the SmartKey into the ignition lock and turn it to the

desired position.

X Visit a qualified specialist workshop.

At least one door is open. A warning tone also sounds. X Close all doors and lock the vehicle again.

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Warning and indicator lamps in the instrument cluster Seat belt Problem

Possible causes/consequences and M Solutions The seat belt warning lamp reminds the driver and front passenger to fasten their seat belts. X Fasten your seat belt (Y page 51).

After starting the engine, the red seat belt warning lamp lights up for six seconds.

After starting the engine, the red seat belt warning lamp lights up. In addition, a warning tone sounds for up to six seconds.

The red seat belt warning lamp lights up after the engine starts, as soon as the driver's or the front-passenger door is closed.

G Risk of injury The driver's seat belt is not fastened. X Fasten your seat belt (Y page 51).

The warning tone ceases.

G Risk of injury The driver or front passenger has not fastened their seat belt. X Fasten your seat belt (Y page 51).

The warning lamp goes out. G Risk of injury There are objects on the front-passenger seat. X Remove the objects from the front-passenger seat and stow

them in a secure place. The warning lamp goes out.

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Problem

The red seat belt warning lamp flashes and an intermittent audible warning sounds.

Possible causes/consequences and M Solutions G Risk of injury The driver or front passenger has not fastened their seat belt. In addition, you are driving faster than 15 mph (25 km/h) or you have briefly driven faster than 15 mph (25 km/h). X Fasten your seat belt (Y page 51).

The warning lamp goes out and the intermittent warning tone ceases. G Risk of injury There are objects on the front-passenger seat. In addition, you are driving faster than 15 mph (25 km/h) or you have briefly driven faster than 15 mph (25 km/h). X Remove the objects from the front-passenger seat and stow

them in a secure place. The warning lamp goes out and the intermittent warning tone ceases.

Safety systems Problem $ (USA only) J (Canada only) The red brake system warning lamp comes on while the engine is running. A warning tone also sounds.

Possible causes/consequences and M Solutions G Risk of accident There is not enough brake fluid in the brake fluid reservoir. X Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions. Do not continue driving under any circumstances.

X Engage the electric parking brake. X Consult a qualified specialist workshop immediately. X Observe the additional display messages in the multifunction

display.

Do not add brake fluid. This will not rectify the malfunction.

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.

380 Warning and indicator lamps in the instrument cluster

Problem

The yellow ABS warning lamp is lit while the engine is running.

The yellow ABS warning lamp is lit while the engine is running.

Possible causes/consequences and M Solutions G Risk of accident ABS (Anti-lock Brake System) is deactivated due to a malfunction. BAS (Brake Assist), BAS PLUS, ESP® (Electronic Stability Program), PRE-SAFE®, PRE-SAFE® Brake, the HOLD function and hill start assist are therefore also deactivated, for example. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. ATTENTION ASSIST is deactivated. X Observe the additional display messages in the multifunction

display.

X Drive on carefully. X Visit a qualified specialist workshop. G Risk of accident ABS is temporarily unavailable. BAS, BAS PLUS, ESP®, EBD (electronic brake force distribution), PRE-SAFE®, PRE-SAFE® Brake, the HOLD function, hill start assist are therefore also deactivated, for example. Self diagnosis is not yet complete or the on-board voltage may be insufficient, for example. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. ATTENTION ASSIST is deactivated. X Carefully drive a suitable distance making slight steering

movements at a speed above 12 mph (20 km/h). The functions mentioned above are available again when the warning lamp goes out.

If the warning lamp is still on: X Observe the additional display messages in the multifunction

display.

X Drive on carefully. X Visit a qualified specialist workshop.

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Problem

The yellow ABS warning lamp is lit while the engine is running. A warning tone also sounds.

$ (USA only) J (Canada only) ÷å! The red brake warning lamp, the yellow ESP® and ESP® OFF warning lamps and the yellow ABS warning lamp are lit while the engine is running.

÷ The yellow ESP® warning lamp flashes while the vehicle is in motion.

Possible causes/consequences and M Solutions G Risk of accident EBD is faulty. Therefore, ABS, BAS, BAS PLUS, ESP®, PRE-SAFE®, PRE-SAFE® Brake, the HOLD function and hill start assist are also unavailable, for example. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. ATTENTION ASSIST is deactivated. X Observe the additional display messages in the multifunction

display.

X Drive on carefully. X Visit a qualified specialist workshop. G Risk of accident ABS and ESP® are faulty. Other systems, e.g. BAS, BAS PLUS, EBD, PRE-SAFE®, PRE-SAFE® Brake, the HOLD function and hill start assist, are also not available due to a malfunction. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. ATTENTION ASSIST is deactivated. X Observe the additional display messages in the multifunction

display.

X Drive on carefully. X Visit a qualified specialist workshop. G Risk of accident ESP® or traction control has intervened because there is a risk of skidding or at least one wheel has started to spin. Cruise control or DISTRONIC PLUS is deactivated. X Only depress the accelerator pedal as far as necessary when

pulling away.

X Ease off the accelerator pedal while the vehicle is in motion. X Adapt your driving style to suit the road and weather conditions. X Do not deactivate ESP®. Exceptions: (Y page 64).

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Problem

å The yellow ESP® OFF warning lamp is lit while the engine is running.

Possible causes/consequences and M Solutions G Risk of accident ESP® is deactivated. ESP® will not stabilize the vehicle if it starts to skid or if a wheel starts to spin. X Reactivate ESP®.

÷å The yellow ESP® and ESP® OFF warning lamps are lit while the engine is running.

Exceptions: (Y page 64).

X Adapt your driving style to suit the road and weather conditions. If ESP® cannot be activated: X Have ESP® checked at a qualified specialist workshop.

G Risk of accident ESP®, BAS, BAS PLUS, PRE-SAFE®, PRE-SAFE® Brake, the HOLD function and hill start assist are not available due to a malfunction. ESP® will not stabilize the vehicle if it starts to skid or if a wheel starts to spin. The brake system continues to function normally, but without the functions listed above. ATTENTION ASSIST is deactivated. X Observe the additional display messages in the multifunction

display.

X Drive on carefully. X Visit a qualified specialist workshop.

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Problem

÷å The yellow ESP® and ESP® OFF warning lamps are lit while the engine is running.

F (USA only) ! (Canada only) The red indicator lamp for the electric parking brake flashes and/or the yellow warning lamp for the electric parking brake lights up.

The red SRS warning lamp is lit while the engine is running.

Possible causes/consequences and M Solutions G Risk of accident ESP®, BAS, PRE-SAFE®, the HOLD function and hill start assist are temporarily unavailable. BAS PLUS and PRE-SAFE® Brake may also have failed. ESP® will not stabilize the vehicle if it starts to skid or if a wheel starts to spin. Self diagnosis is not yet complete. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. ATTENTION ASSIST is deactivated. X Carefully drive a suitable distance making slight steering

movements at a speed above 12 mph (20 km/h). The functions mentioned above are available again when the warning lamp goes out.

If the warning lamp is still on: X Observe the additional display messages in the multifunction

display.

X Drive on carefully. X Visit a qualified specialist workshop. The electric parking brake is temporarily malfunctioning or defective. X Observe the additional display messages in the multifunction

display.

G Risk of injury The restraint systems are malfunctioning. The air bags or ETDs may either be triggered unintentionally or, in the event of an accident, not be triggered at all. X Drive on carefully. X Visit a qualified specialist workshop immediately.

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

384 Warning and indicator lamps in the instrument cluster

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.

Engine Problem

The yellow Check Engine warning lamp lights up while the engine is running.

The yellow reserve fuel warning lamp flashes while the vehicle is in motion. In addition, the ; yellow Check Engine warning lamp may light up.

The yellow reserve fuel warning lamp lights up while the engine is running.

Possible causes/consequences and M Solutions There may be a malfunction, for example: Rin the engine management Rin the fuel injection system Rin the exhaust system Rin the ignition system Rin the fuel system The emission limit values may be exceeded and the engine may be running in emergency mode. X Have the vehicle checked as soon as possible at a qualified

specialist workshop.

i In some states, you are required by law to immediately visit a

qualified specialist workshop as soon as the yellow Check Engine warning lamp lights up. If in doubt, check whether such legal regulations apply in the state/province in which you are currently driving.

The fuel system pressure is too low. The fuel filler cap is not closed correctly or the fuel system is leaking. X Observe the additional display messages in the multifunction

display.

X Check that the fuel filler cap is correctly closed. X If the fuel filler cap is not correctly closed: close the fuel filler

X If the fuel filler cap is closed: visit a qualified specialist

cap.

workshop.

The fuel level has dropped into the reserve range. X Refuel at the nearest gas station.

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385

Driving systems Problem

· The red distance warning lamp lights up while the vehicle is in motion. A warning tone also sounds.

Tires Problem

USA only: The yellow tire pressure monitor warning lamp (pressure loss/ malfunction) is lit. Canada only: The yellow tire pressure monitor warning lamp (pressure loss) is lit.

USA only: The yellow tire pressure monitor warning lamp (pressure loss/ malfunction) flashes for 60 seconds and then remains lit.

Possible causes/consequences and M Solutions G Risk of accident The warning is issued if you approach a stationary vehicle or a vehicle driving ahead of you at too high a speed. X Be prepared to brake immediately. X Pay careful attention to the traffic situation. You may have to

brake or take evasive action.

More information about DISTRONIC PLUS (Y page 292) and PRE-SAFE® Brake (Y page 66).

Possible causes/consequences and M Solutions G Risk of accident The tire pressure monitor has detected a loss of pressure in at least one of the tires. X Stop the vehicle without making any sudden steering or braking maneuvers. Pay attention to the traffic conditions as you do so. X Observe the additional display messages in the multifunction

display.

X Check the tire pressure. If necessary, correct the tire pressure

(Y page 449).

X If necessary, change a wheel (Y page 465). The tire pressure monitor is faulty. X Observe the additional display messages in the multifunction

display.

X Visit a qualified specialist workshop.

G WARNING Each tire, including the spare (if provided), should be checked at least every two weeks when cold and inflated to the 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 pressure label on the inside of the fuel filler flap. If your vehicle has tires of a different size than the size indicated

386 Warning and indicator lamps in the instrument cluster

on the Tire and Loading Information placard or the tire pressure label, you should determine the proper tire pressure for those tires. As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires are significantly underinflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly underinflated tire causes the tire to overheat and can lead to tire failure. Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if underinflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale. 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 be repeated every time the vehicle is started 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.

387

Useful information ............................ 388
Loading guidelines ............................ 388
Stowage areas .................................. 388
Features ............................................. 391

388 Stowage areas

Useful information

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

i Please read the information on qualified

specialist workshops (Y page 29).

Loading guidelines

G WARNING Always fasten items being carried as securely as possible. Use cargo tie-down rings and fastening materials appropriate for the weight and size of the load. In an accident, during hard braking or sudden maneuvers, loose items will be thrown around inside the vehicle. This can cause injury to vehicle occupants unless the items are securely fastened in the vehicle. To help avoid personal injury during a collision or sudden maneuver, exercise care when transporting cargo. Do not pile luggage or cargo higher than the seat backrests. The trunk is the preferred place to carry objects. Never drive a vehicle with the trunk open. Deadly carbon monoxide (CO) gases may enter vehicle interior resulting in unconsciousness and death.

The handling characteristics of a laden vehicle are dependent on the distribution of the load within the vehicle. For this reason, you should observe the following notes when transporting a load: Rwhen transporting a load, never exceed the maximum permissible gross vehicle weight or the gross axle weight rating of the

vehicle (including occupants). The values are specified on the vehicle identification plate on the driver's door frame.

Rposition heavy loads as far forwards as

possible and as low down in the trunk as possible.

Rthe load must not protrude above the upper

edge of the seat backrests.

Ralways place the load against the rear seat

backrests.

Ralways place the load behind unoccupied

seats if possible.

Rsecure the load with sufficiently strong and wear-resistant tie down. pad sharp edges for protection.

Stowage areas Stowage compartments Important safety notes G WARNING To help avoid personal injury during a collision or sudden maneuver, exercise care when storing objects in the vehicle. Put luggage or cargo in the trunk if possible. Do not pile luggage or cargo higher than the seat backrests. Keep compartment lids closed. This will help to prevent stored objects from being thrown about and injuring vehicle occupants during Rbraking Rvehicle maneuvers Ran accident

Stowage compartments in the front Glove box i Depending on the vehicle's equipment, you will find the following installed in the glove box: an audio and video AUX jack, a USB socket or Media Interface, a universal interface for portable audio equipment, e.g. for an iPod or USB device, and a bracket for

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389

a remote control (see the COMAND section in this Operator's Manual).

i The glove box can be ventilated

(Y page 263).

X To open: press marking :.

Stowage compartment under the armrest i The º Roadside Assistance call button

and (Y page 397) and the E MB Info call button are located (Y page 398) in the stowage compartment under the armrest.

X To open: press button :. X To close: fold the glove box flap upwards

until it engages.

The glove box can only be locked and unlocked using the mechanical key.

X To open the stowage compartment:

press button : and fold the armrest in the direction of arrow : to the left or right. X To open the stowage compartment:

press button ; and fold up the armrest in the direction of arrow ;.

Stowage compartments in the rear Stowage compartment in the rear seat armrest ! Do not sit or lean your bodyweight on the armrests when they are folded out as you could damage them.

! Close the cover of the stowage

compartment before folding the rear seat armrest back into the seat backrest.

1 Glove box unlocked 2 Glove box locked Eyeglasses compartment

390 Stowage areas

X To open: fold down the seat armrest. X Pull handle : and fold the armrests

upwards.

Stowage box between the rear seats

X To open: pull handle : backwards in the

direction of the arrow.

Stowage box in the rear seat backrest ! Do not sit or lean your bodyweight on the armrests when they are folded out as you could damage them.

X To open: fold down the rear seat armrest. X Pull handle : and fold down cover ;.

Stowage pockets G WARNING Storage bags are intended for storing light- weight items only. Heavy objects, objects with sharp edges or fragile objects may not be transported in the storage bag. In an accident, during hard braking, or sudden maneuvers, they could be

thrown around inside the vehicle and cause injury to vehicle occupants. Storage bags cannot protect transported goods in the event of an accident.

Storage bags are located in the rear compartment on the driver's and front- passenger seat backrests.

Parcel nets G WARNING Parcel nets are intended for storing light- weight items only, such as road maps, mail, etc. Heavy objects, objects with sharp edges, or fragile objects may not be transported in the parcel nets. In an accident, during hard braking, or sudden maneuvers, they could be thrown around inside the vehicle and cause injury to vehicle occupants. Parcel nets cannot protect transported goods in the event of an accident.

Parcel nets are located in the front-passenger footwell and on the right-hand side of the trunk.

Securing cargo Cargo tie-down rings Observe the following notes on securing loads: Rsecure the load using the cargo tie down

rings.

Rdo not use elastic straps or nets to secure

a load, as these are only intended as an anti-slip protection for light loads.

Rdo not route tie downs across sharp edges

or corners.

Rpad sharp edges for protection. There are four cargo tie down rings in the trunk.

Features

391