2013 Mercedes-benz CL Class Owners Manual

If you have activated the Daytime running lights function and the light switch is in the $ or c position, the daytime running lamps are automatically switched on when the engine is running. Depending on the ambient light, the following will additionally light up: Rparking lamps Rtail lamps Rlicense plate lamp Rside marker lamps If you turn the light switch to a different position, the corresponding lights are switched on. If you switch off the daytime running lamps at night, make sure that the light switch is set to L or c. The factory setting is On. X Press the = or ; button on the steering wheel to select the Settings menu. X Press the 9 or : button to select daytime running lamps. X Press the a button to confirm. X To activate/deactivate: press a

again.

350 Menus and submenus

Switching Adaptive Highbeam Assist on/off X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select Adapt. High-beam Asst.. X Press the a button to confirm. X To activate/deactivate: press a

again.

Switching the additional speedometer on/off An additional digital speedometer can be shown in the multifunction display. Vehicles with a kilometer speedometer: the digital speedometer has mph units. Vehicles with a miles speedometer: the digital speedometer has km/h units. X Press the = or ; button on the steering wheel to select the Settings menu. X Press 9 or : to select Add. Speedometer. X Press the a button to confirm. X Press the a button to save the setting.

Selecting the unit of measurement for distance The Display Unit Speed-/Odometer: function allows you to choose whether certain displays appear in kilometers or miles. The selected unit of measurement for distance applies to: Ranalog speedometers Rdigital speedometers in the Trip menu Rodometer and the trip odometer RTrip computer Rnavigation instructions in the Navi menu RDISTRONIC PLUS RASSYST PLUS service interval display

The digital speedometer shows alternative speed units (Y page 350). X Press the = or ; button on the steering wheel to select the Settings menu. X Press 9 or : to select Units. X Press a to confirm. X Press the a button to save the setting. The unit switches km/h and mph.

Activating/deactivating the acoustic locking verification signal If you activate the Acoustic Lock Feedb. function, an audible signal sounds depending on the vehicle's date of manufacture: Rwhen locking

or

Ronce when unlocking and three times when

locking X Press the = or ; button on the steering wheel to select the Settings menu. X Press the 9 or : button to select Acoustic Lock Feedb. X Press the a button to confirm. X To activate/deactivate: press a

again.

Activating/deactivating the radar sensor system The following systems are switched off when the radar sensor system is deactivated: RDISTRONIC PLUS (Y page 298) RBAS PLUS (Y page 66) RPRE-SAFE® Brake (Y page 68) RActive Blind Spot Assist (Y page 327) X Press the = or ; button on the steering wheel to select the Settings menu. X Press 9 or : to select Radar Sensors.

Menus and submenus

351

X Press a to confirm. X To activate/deactivate: press the a

button again.

352 Display messages

Display messages General notes G WARNING All categories of messages contain important information which should be taken note of and, where a malfunction is indicated, addressed as soon as possible at an authorized Mercedes-Benz Center. Failure to repair the condition noted may cause damage not covered by the Mercedes-Benz Limited Warranty, or result in property damage or personal injury.

Display messages appear in the multifunction display. Display messages with graphic displays may be shown in simplified form in the Operator's Manual and may differ from the messages shown in the multifunction display. Please respond in accordance with the display messages and follow the additional notes in this Operator's Manual. Certain display messages are accompanied by an audible warning tone or a continuous tone. When you stop and park the vehicle, please observe the notes on the HOLD function (Y page 308) and parking (Y page 289).

Hiding display messages You can hide some display messages with a low priority. X Press the a or % button on the steering wheel to hide the display message.

The display message is cleared.

Display messages with a low priority are shown in either yellow or white. Display messages with a high priority are shown in red. You cannot hide display messages of the highest priority. The multifunction display shows these messages continuously until the causes for the messages have been remedied.

Message memory The on-board computer saves certain display messages. You can call up the display messages in the message memory. X Press the = or ; button on the steering wheel and select the Service menu. If there are display messages, the multifunction display shows, for example, 2 messages. X Press the 9 or : button to select the entry, e.g. 2 messages. X Confirm with a. X Press the 9 or : button to scroll through the display messages. When the ignition is switched off, all display messages are deleted, apart from some high- priority display messages. Once the causes of the high-priority display messages have been rectified, the corresponding display messages are also deleted.

Display messages

353

Safety systems Display messages !÷ Currently Unavailable See Operator's Manual

Possible causes/consequences and M Solutions ABS (Anti-lock Braking System), ESP® (Electronic Stability Program), BAS (Brake Assist), PRE-SAFE®, the HOLD function and hill start assist are temporarily unavailable. BAS PLUS and PRE-SAFE® Brake may also have failed. In addition, the ÷, å and ! warning lamps light up in the instrument cluster. ATTENTION ASSIST is deactivated. For example, the on-board voltage may be insufficient. G WARNING The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. The steerability and braking characteristics may be severely affected. The braking distance in an emergency braking situation can increase. If ESP® is not operational, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Carefully drive a suitable distance, making slight steering

movements at a speed above 12 mph (20 km/h). If the display message disappears, the functions mentioned above are available again.

If the display message continues to be displayed: X Drive on carefully. X Visit a qualified specialist workshop.

ABS, ESP®, BAS, PRE-SAFE®, the HOLD function and hill start assist are temporarily unavailable. BAS PLUS and PRE-SAFE® Brake may also have failed. In addition, the ÷, å and ! warning lamps light up in the instrument cluster. ATTENTION ASSIST is deactivated. For example, the on-board voltage may be insufficient. G WARNING The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example.

354 Display messages

Display messages

!÷ Inoperative See Operator's Manual

Possible causes/consequences and M Solutions The steerability and braking characteristics may be severely affected. The braking distance in an emergency braking situation can increase. If ESP® is not operational, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Drive on carefully.

If the display message disappears, the functions mentioned above are available again.

If the display message continues to be displayed: X Drive on carefully. X Visit a qualified specialist workshop.

ABS, ESP®, BAS, PRE-SAFE®, the HOLD function and hill start assist are unavailable due to a malfunction. BAS PLUS and PRE-SAFE® Brake may also have failed. The $ (USA only)/J (Canada only), ÷, å and ! warning lamps in the instrument cluster also light up. ATTENTION ASSIST is deactivated. G WARNING The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. The steerability and braking characteristics may be severely affected. The braking distance in an emergency braking situation can increase. If ESP® is not operational, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Drive on carefully. X Visit a qualified specialist workshop immediately.

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355

Display messages ÷ Currently Unavailable See Operator's Manual

Possible causes/consequences and M Solutions ESP®, BAS, PRE-SAFE®, the HOLD function and hill start assist are temporarily unavailable. BAS PLUS and PRE-SAFE® Brake may also have failed. In addition, the ÷ and å warning lamps light up in the instrument cluster. The self-diagnosis function might not be complete, for example. ATTENTION ASSIST is deactivated. G WARNING The brake system continues to function normally, but without the functions listed above. The braking distance in an emergency braking situation can thus increase. If ESP® is not operational, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Carefully drive a suitable distance, making slight steering

movements at a speed above 12 mph (20 km/h). If the display message disappears, the functions mentioned above are available again.

If the display message continues to be displayed: X Drive on carefully. X Visit a qualified specialist workshop. G WARNING If the display message is shown and the ÷ warning lamp flashes at the same time, the Electronic Traction System is deactivated. Otherwise, the brakes on the drive wheels could overheat. X Let the brakes cool down until the display message disappears

and the ÷ warning lamp goes out. The Electronic Traction System is activated again.

356 Display messages

Display messages ÷ Inoperative See Operator's Manual

å System Inoperative

Possible causes/consequences and M Solutions ESP®, BAS, PRE-SAFE®, the HOLD function and hill start assist are unavailable due to a malfunction. BAS PLUS and PRE-SAFE® Brake may also have failed. In addition, the ÷ and å warning lamps light up in the instrument cluster. The self-diagnosis function might not be complete, for example. ATTENTION ASSIST is deactivated. G WARNING The brake system continues to function normally, but without the functions listed above. The braking distance in an emergency braking situation can thus increase. If ESP® is not operational, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Drive on carefully. X Visit a qualified specialist workshop. G WARNING ESP®, BAS, PRE-SAFE®, the HOLD function and hill start assist are unavailable due to a malfunction. BAS PLUS and PRE-SAFE® Brake may also have failed. In addition, the ÷ and å warning lamps light up in the instrument cluster. ATTENTION ASSIST is deactivated. X Drive on carefully. X Visit a qualified specialist workshop.

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357

Display messages T! ÷ Inoperative See Operator's Manual

Check Brake Pad Wear F(USA only)!(Canada only) Please Release Parking Brake

Possible causes/consequences and M Solutions EBD (electronic brake force distribution), ABS, ESP®, BAS, PRE- SAFE®, the HOLD function and hill start assist are unavailable due to a malfunction. BAS PLUS and PRE-SAFE® Brake may also have failed. In addition, the ÷, å and ! warning lamps light up in the instrument cluster and a warning tone sounds. ATTENTION ASSIST is deactivated. G WARNING The brake system continues to function normally, but without the functions listed above. The front and rear wheels could therefore lock if you brake hard, for example. The steerability and braking characteristics may be severely affected. The braking distance in an emergency braking situation can increase. If ESP® is not operational, ESP® is unable to stabilize the vehicle. There is an increased risk of skidding and an accident. X Drive on carefully. X Visit a qualified specialist workshop immediately.

The brake pads/linings have reached their wear limit. X Visit a qualified specialist workshop.

The red F (USA only)/! (Canada only) indicator lamp flashes and a warning tone sounds. You are driving with the electric parking brake applied. X Release the electric parking brake. or X Pull away carefully (Y page 290).

The red F (USA only)/! (Canada only) indicator lamp flashes and a warning tone sounds. You are making an emergency stop using the electric parking brake (Y page 290). X After the emergency stop: release the electric parking brake

lever.

358 Display messages

Display messages

F(USA only)!(Canada only) Parking Brake See Operator's Manual

Possible causes/consequences and M Solutions The red F (USA only)/! (Canada only) indicator lamp lights up. The yellow F (USA only )/! (Canada only) warning lamp lights up and a warning tone sounds. The electric parking brake is malfunctioning and the braking effect is restricted. While the vehicle is in motion: X Release the electric parking brake handle. While the vehicle is stationary: X Switch off the ignition and turn it back on. X Release the electric parking brake. If the display message continues to be displayed: X Shift the transmission to P. X Use the folding wheel chock (Y page 438) from the vehicle tool

kit to secure the vehicle against rolling away.

X Consult a qualified specialist workshop. The yellow F (USA only)/! (Canada only) warning lamp lights up. Additionally, the red F (USA only)/! (Canada only) indicator lamp may light up. The electric parking brake is malfunctioning. To release: X Pull the electric parking brake handle. or X Pull away carefully. X Visit a qualified specialist workshop. To apply: X Switch the ignition off. X Pull the electric parking brake lever for at least ten seconds,

until the display message disappears.

If the display message continues to be displayed: X Shift the transmission to P. X Use the folding wheel chock (Y page 438) from the vehicle tool

kit to secure the vehicle against rolling away.

X Consult a qualified specialist workshop.

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359

Display messages

Possible causes/consequences and M Solutions The red F (USA only)/! (Canada only) indicator lamp lights up. The power supply for the electric parking brake was interrupted. X Pull the electric parking brake handle. or X Pull away carefully. or X Pull the electric parking brake handle until the display message

disappears.

The red F (USA only)/! (Canada only) indicator lamp lights up. The yellow F (USA only)/! (Canada only) warning lamp lights up. The electric parking brake is malfunctioning. X Switch off the ignition and turn it back on. X Engage or release the electric parking brake. or X Pull away carefully. X Visit a qualified specialist workshop. The yellow F (USA only)/! (Canada only) warning lamp lights up. The red F (USA only)/! (Canada only) indicator lamp flashes for approximately ten seconds after the electric parking brake has been applied or released. It then goes out or remains lit. The electric parking brake is malfunctioning, e.g. because of overvoltage or undervoltage. X Pull away carefully. X Visit a qualified specialist workshop. If there is overvoltage or undervoltage: X Remove the cause for the overvoltage or undervoltage, e.g. by

charging the battery or restarting the engine.

X Switch the ignition off and on, and then engage or release the

electric parking brake.

If this does not release the electric parking brake: X Do not drive on. X Consult a qualified specialist workshop.

360 Display messages

Display messages

F(USA only)!(Canada only) Parking Brake Inoperative

F(USA only)!(Canada only) Turn On the Ignition to Release the Parking Brake

Possible causes/consequences and M Solutions The yellow F (USA only)/! (Canada only) warning lamp lights up. The red F (USA only)/! (Canada only) indicator lamp flashes for approximately ten seconds after the electric parking brake has been applied or released. It then goes out or remains lit. The electric parking brake has overheated. X Allow the vehicle to cool down. Do not engage or release the

electric parking brake during this time.

X Use the folding wheel chock (Y page 438) from the vehicle tool

kit to secure the vehicle against rolling away.

X When the vehicle has cooled down: switch the ignition off and

on again, then engage or release the electric parking brake.

The yellow F (USA only)/ ! (Canada only) warning lamp lights up. The red F (USA only)/! (Canada only) indicator lamp flashes for approximately ten seconds after the electric parking brake has been applied or released. It then goes out or remains lit. The electric parking brake is malfunctioning. X Switch the ignition off and on, and then engage the electric

parking brake.

If it is not possible to engage the electric parking brake: X Shift the transmission to P. X Use the folding wheel chock (Y page 438) from the vehicle tool

kit to secure the vehicle against rolling away.

X Consult a qualified specialist workshop. The red F (USA only)/! (Canada only) indicator lamp lights up. You attempted to release the electric parking brake while the ignition was switched off. X SmartKey: turn the SmartKey to position 1 in the ignition lock. X KEYLESS-GO: switch on the ignition.

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361

Display messages $(USA only)J(Canada only) Service See Operator's Manual $(USA only)J(Canada only) Check Brake Fluid Level

Possible causes/consequences and M Solutions There is a malfunction in the system. The brake system continues to operate normally. X Drive on carefully. X Visit a qualified specialist workshop.

There is not enough brake fluid in the brake fluid reservoir. Additionally, the red $ (USA only)/J (Canada only) warning lamp lights up in the instrument cluster and a warning tone sounds. G WARNING The braking effect may be impaired. There is a risk of an accident. 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 Secure the vehicle against rolling away (Y page 289). X Consult a qualified specialist workshop. X Do not add brake fluid. This does not correct the malfunction.

Display messages Tele Aid Inoperative

PRE-SAFE Inoperative See Operator's Manual

Possible causes/consequences and M Solutions USA only: one or more of the main functions in the mbrace system are malfunctioning. Canada only: one or more of the main functions of the TELEAID system are malfunctioning. X USA only: have the mbrace system checked at a qualified

specialist workshop.

X Canada only: have the TELEAID system checked at a qualified

specialist workshop.

Important functions of PRE-SAFE® have failed. All other occupant safety systems, e.g. air bags, remain available. X Visit a qualified specialist workshop immediately.

362 Display messages

Display messages PRE-SAFE Function Currently Limited See Operator's Manual

PRE-SAFE Function Limited See Operator's Manual SRS Malfunction Service Required

Possible causes/consequences and M Solutions PRE-SAFE® Brake is temporarily inoperative. Possible causes are: Rthe DISTRONIC PLUS cover in the radiator trim is dirty Rfunction 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. If the display message does not disappear: X Pull over and stop the vehicle safely as soon as possible, paying

attention to road and traffic conditions.

X Secure the vehicle against rolling away (Y page 289). X Clean the DISTRONIC PLUS cover in the radiator trim

(Y page 431).

X Clean the bumpers (Y page 431). X Restart the engine. If the system detects that the sensors are fully operational, the display message disappears. PRE-SAFE® Brake is operational again.

PRE-SAFE® Brake is defective. BAS PLUS or the distance warning signal may also have failed. X Visit a qualified specialist workshop.

There is a malfunction in the SRS (Supplemental Restraint System). The 6 warning lamp also lights up in the instrument cluster. G WARNING The air bags or Emergency Tensioning Devices may either be triggered unintentionally or, in the event of an accident, may not be triggered. There is an increased risk of injury. X Visit a qualified specialist workshop.

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363

Display messages Front Left SRS Malfunction Service Required  or Front Right SRS Malfunction Service Required

Rear Left SRS Malfunction Service Required  or Rear Right SRS Malfunction Service Required

Left Side Curtain Airbag Malfunction Service Required  or Right Side Curtain Airbag Malfunction Service Required

Possible causes/consequences and M Solutions SRS has malfunctioned at the front on the left or right. The 6
warning lamp also lights up in the instrument cluster. G WARNING The air bags or Emergency Tensioning Devices may either be triggered unintentionally or, in the event of an accident, may not be triggered. There is an increased risk of injury. X Visit a qualified specialist workshop. SRS has malfunctioned at the rear on the left or right. The 6
warning lamp also lights up in the instrument cluster. G WARNING The air bags or Emergency Tensioning Devices may either be triggered unintentionally or, in the event of an accident, may not be triggered. There is an increased risk of injury. X Visit a qualified specialist workshop. There is a malfunction in the left-hand or right-hand window curtain air bag. The 6 warning lamp also lights up in the instrument cluster. G WARNING The left or right window curtain air bag may either be triggered unintentionally or, in the event of an accident, may not be triggered. There is an increased risk of injury. X Visit a qualified specialist workshop.

364 Display messages

Display messages Front Passenger Airbag Disabled See Operator's Manual

Possible causes/consequences and M Solutions The front-passenger air bag is disabled during the journey, even though: Ran adult

or

Ra person larger than a certain size is occupying the front-

passenger seat

If additional forces are applied to the seat, the system may interpret the occupant's weight as lower than it actually is. X Pull over and stop the vehicle safely as soon as possible, paying

attention to road and traffic conditions.

X Apply the parking brake. X Switch the ignition off. X Have the occupant get out of the vehicle. X Keep the seat unoccupied, close the front-passenger door and

switch on the ignition.

Observe the PASSENGER AIR BAG OFF indicator lamp (Y page 50) and the multifunction display and check the following: Seat unoccupied and ignition switched on: Rthe PASSENGER AIR BAG OFF indicator lamp must light up and

remain lit. If the indicator lamp is on, OCS (Y page 50) has deactivated the front-passenger air bag. RThe Front Passenger Airbag Enabled See Oper. Manual or Front Passenger Airbag Disabled See Oper. Manual display messages must not appear in the multifunction display.

X Wait for a period of at least 60 seconds until the necessary

system checks have been completed.

X Make sure that the display messages do not appear in the

multifunction display.

If these conditions are fulfilled, the front-passenger seat can be occupied again. Whether the PASSENGER AIR BAG OFF indicator lamp remains lit or goes out depends on how OCS classifies the occupant. If the conditions are not fulfilled, the system is not operating correctly. X Visit a qualified specialist workshop immediately.

Display messages

365

G WARNING If the 42 indicator lamp remains lit 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.

366 Display messages

Display messages Front Passenger Airbag Enabled See Operator's Manual

Possible causes/consequences and M Solutions The front-passenger air bag is enabled during the journey, even though: Ra child, a small adult or an object weighing less than the

system's weight threshold is located on the front-passenger seat or

Rthe front-passenger seat is unoccupied The system may detect objects or forces applying additional weight on the seat. X Pull over and stop the vehicle safely as soon as possible, paying

attention to road and traffic conditions.

X Apply the parking brake. X Switch the ignition off. X Open the front-passenger door. X Remove the child and the child restraint system from the front-

passenger seat.

X If necessary, secure the child in a child restraint system on a

suitable rear seat.

X Make sure that there are no objects on the seat adding to the

weight. The system may otherwise detect the additional weight and interpret the seat occupant's weight as greater than it actually is.

X Keep the seat unoccupied, close the front-passenger door and

switch on the ignition.

Observe the PASSENGER AIR BAG OFF indicator lamp (Y page 50) and the multifunction display and check the following: Seat unoccupied and ignition switched on: Rthe PASSENGER AIR BAG OFF indicator lamp must light up and

remain lit. If the indicator lamp is on, OCS (Y page 50) has deactivated the front-passenger air bag. RThe Front Passenger Airbag Enabled See Operator's Manual or Front Passenger Airbag Disabled See Operator's Manual display messages must not appear in the multifunction display.

X Wait for a period of at least 60 seconds until the necessary

system checks have been completed.

X Make sure that the display messages do not appear in the

multifunction display.

If these conditions are fulfilled, the front-passenger seat can be occupied again. Whether the PASSENGER AIR BAG OFF indicator

Display messages

367

Display messages

Possible causes/consequences and M Solutions lamp remains lit or goes out depends on how OCS classifies the occupant. If the conditions are not fulfilled, the system is not operating correctly. X Visit a qualified specialist workshop immediately.

G WARNING If the 42 indicator lamp remains off even after performing the above corrective steps, do not have any children twelve years old and under and other small individuals use the front-passenger seat until the system has been repaired.

Lights i Display messages about LEDs:

Possible causes/consequences and M Solutions The left or right-hand cornering light is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

This display message will only appear if all LEDs have failed. Display messages Check Left Cornering Light or Check Right Cornering Light Check Left Low Beam or Check Right Low Beam

or X Visit a qualified specialist workshop.

or X Visit a qualified specialist workshop.

(Y page 256).

The left or right-hand low-beam headlamp is defective. X Check whether you are permitted to change the bulb yourself

Check Rear Left Turn Signal or Check Rear Right Turn Signal

The rear left-hand or rear right-hand turn signal is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

368 Display messages

Display messages Check Front Left Turn Signal or Check Front Right Turn Signal Check Left Mirror Turn Signal or Check Right Mirror Turn Signal Check Center Brake Lamp

Check Left Tail and Brake Lamp or Check Right Tail and Brake Lamp Check Left High Beam or Check Right High Beam

Check Left License Plate Lamp or Check Right License Plate Lamp

Possible causes/consequences and M Solutions The front left-hand or front right-hand turn signal is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

The turn signal in the left-hand or right-hand exterior mirror is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop. The high-mounted brake lamp is faulty. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

The left or right-hand tail lamp/brake lamp is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

The left or right-hand high beam is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

The left or right-hand license plate lamp is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

Display messages Check Left Fog Lamp or Check Right Fog Lamp

Check Rear Left Fog Lamp or Check Rear Right Fog Lamp

Check Front Left Parking Lamp or Check Front Right Parking Lamp Check Left Reverse Lamp or Check Right Reverse Lamp

Check Front Left Sidemarker Lamp or Check Front Right Sidemarker Lamp Check Rear Left Sidemarker Lamp or Check Rear Right Sidemarker Lamp

Display messages

369

Possible causes/consequences and M Solutions The left-hand or right-hand front fog lamp is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

The left-hand or right-hand rear fog lamp is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

The front left or front right parking or standing lamp is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

The left or right-hand backup lamp is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

The left or right front side marker lamp is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

The rear left or right side marker lamp is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

370 Display messages

Display messages Check Left Daytime Running Light or Check Right Daytime Running Light Active Headlamps Inoperative Malfunction See Oper. Manual AUTO Lamp Function Inoperative

Possible causes/consequences and M Solutions The left or right-hand daytime running lamp is defective. X Check whether you are permitted to change the bulb yourself

(Y page 256).

or X Visit a qualified specialist workshop.

The active light function is defective. X Visit a qualified specialist workshop.

The exterior lighting is defective. X Visit a qualified specialist workshop.

The light sensor is defective. X Visit a qualified specialist workshop. USA only: X Switch off the daytime running lamps in the on-board computer

(Y page 349).

X Switch the lights on and off using the light switch.

Please Switch Off Lights

Adaptive High-beam Assist Inoperative

The lights are still switched on when you leave the vehicle. A warning tone also sounds. X Turn the light switch to $ or c. or X If the rear fog lamp is switched on: press the light switch in to

the stop.

Adaptive Highbeam Assist is faulty. X Visit a qualified specialist workshop.

Display messages

371

Engine Display messages Check Coolant Level See Oper. Manual

Possible causes/consequences and M Solutions The coolant level is too low. ! Avoid making long journeys with too little coolant in the engine

cooling system. The engine will otherwise be damaged.

X Add coolant, observing the warning notes before doing so

(Y page 424).

X If coolant needs to be added more often than usual, have the

engine coolant system checked at a qualified specialist workshop.

372 Display messages

Display messages ? The fan motor is faulty.

Possible causes/consequences and M Solutions

X At coolant temperatures under 248 ‡ (120 †), drive to the next

qualified specialist workshop.

Coolant Low Stop Vehicle Turn Engine Off

X Avoid subjecting the engine to heavy loads, e.g. driving in

mountainous terrain, and stop-and-go traffic.

The coolant is too hot. A warning tone also sounds. G WARNING Do not drive when your engine is overheated. This can cause some fluids which may have leaked into the engine compartment to catch fire. Steam from the overheated engine can also cause serious burns which can occur just by opening the hood. There is a risk of injury. X Pull over and stop the vehicle safely and switch off the engine,

paying attention to road and traffic conditions.

X Secure the vehicle against rolling away (Y page 289). X Leave the vehicle and keep a safe distance from the vehicle until

the engine has cooled down.

X Make sure that the air supply to the engine radiator is not

blocked, e.g. by snow, slush or ice.

X Do not start the engine again until the display message goes out

and the coolant temperature is under 248 ‡ (120 †). Otherwise, the engine could be damaged.

X Pay attention to the coolant temperature display. X If the temperature increases again, visit a qualified specialist

workshop immediately.

Under normal operating conditions and with the specified coolant level, the coolant temperature may rise to 248 ‡ (120 †).

Display messages

373

Display messages # The battery is not being charged.

Possible causes/consequences and M Solutions

Possible causes are: Ra defective alternator 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 oil level when next refueling, at the latest

(Y page 421).

X If necessary, add engine oil (Y page 423). X Have the engine checked at a qualified specialist workshop if

engine oil needs to be added more often than usual.

! Avoid long journeys with too little engine oil. The engine will

otherwise be damaged.

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

Vehicles without an oil dipstick: the engine oil level is too low. X Check the oil level when next refueling, at the latest

(Y page 421).

X If necessary, add engine oil (Y page 423). X Have the engine checked at a qualified specialist workshop if

engine oil needs to be added more often than usual.

! Avoid long journeys with too little engine oil. The engine will

otherwise be damaged.

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

374 Display messages

Display messages Engine Oil Level Low Stop Vehicle Turn Engine Off

Engine Oil Level Too High

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 423) and check the oil level

(Y page 421).

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 measure eng. oil level Reserve fuel level 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.

Fuel filler cap open

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: Drowsiness Detected

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 432). 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 Secure the vehicle against rolling away (Y page 289). X Wait until the display message disappears before pulling away. AIRMATIC is defective. A warning tone also sounds. X Do not drive at speeds above 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. The AIRMATIC function is restricted. The vehicle's handling characteristics may be affected. X Do not drive at speeds above 50 mph (80 km/h). X Visit a qualified specialist workshop.

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Display messages ABC Malfunction Stop Vehicle

ABC Vehicle Rising Please Wait Briefly ABC Malfunction

ë 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.