2011 Mercedes-benz C Class Owners Manual

lane recommendation Lane recommendations are only displayed if the relevant data is available on the digital map.

: Lap ; Lap time = Average lap speed ? Lap length A Top speed during lap X Press 9 or : to select a different lap

evaluation.

Navigation menu Displaying navigation instructions In the Navi menu, the multifunction display shows navigation instructions. For more information, see the separate operating instructions. X Switch on COMAND (see the separate

operating instructions). X Press the = or ; button on the steering wheel to select the Navi menu.

Route guidance inactive

: Direction of travel ; Current road

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Audio menu Selecting a radio station i SIRIUS XM satellite radio acts like a

normal radio. For more information on satellite radio operation, see the separate operating instructions.

You can only change the waveband and store new stations using the audio system or COMAND. X Switch on the audio system or COMAND

and select Radio (see the separate operating instructions). X Press the = or ; button on the steering wheel to select the Audio menu.

: Road into which the change of direction

leads

; Distance to change of direction and visual

distance display

= Lane recommendation ? Symbol for change of direction On multi-lane roads, lane recommendation = may be shown for the next change of direction. Lanes may be added during a change of direction.

Lane recommendation display (example) : Uninterrupted lane ; New lane during a change of direction = Lane recommended for the change of

direction

Other status indicators of the navigation system RO: you have reached the destination. RNew Route... or Calculating Route: a new route is being calculated. ROff Map or Off Mapped Road: the vehicle position is outside the area of the digital map (off-map position). RNo Route: no route could be calculated to the selected destination.

: Waveband20
; Station X To select a stored channel: briefly press

the 9 or : button.

X To select a channel from the channel

list: press and briefly hold the 9
or : button.

X To select a station using the station

search21: press and briefly hold the 9
or : button.

Audio player or audio media operation Audio data from various audio devices or media can be played, depending on the equipment installed in the vehicle.

20 When station ; has been stored, the memory position will also be displayed. 21 Only if no station list is received.

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X Switch on the audio system or COMAND and select the audio drive or medium (see the separate operating instructions). X Press the = or ; button on the steering wheel to select the Audio menu.

CD player display (example) : Current track X To select the next/previous track: briefly press the 9 or : button. X To select a track from the track list

(rapid scrolling): press and hold the 9 or : button until the desired track has been reached.

If track information is stored on the audio player or medium, the multifunction display will show the number and name of the track. The current track does not appear in audio AUX mode (Auxiliary audio mode: external audio source connected).

Video DVD operation X Switch on COMAND and select video DVD (see the separate operating instructions). X Press the = or ; button on the steering wheel to select the Audio menu.

: Current scene X To select the next or previous scene:

briefly press the 9 or the : button.

X To select a scene from the scene list

(rapid scrolling): press and hold the

9 or : button until the desired scene has been reached.

Telephone menu Introduction You can establish a Bluetooth® wireless connection to the audio system or to COMAND (see the separate operating instructions). G Warning A driver's attention to the road must always be his/her primary focus when driving. For your safety and the safety of others, we recommend that you pull over to a safe location and stop before placing or taking a telephone call. If you choose to use the telephone while driving, please use the hands- free device and only use the telephone when weather, road and traffic conditions permit. Some jurisdictions prohibit the driver from using a mobile phone while driving a vehicle. Bear in mind that at a speed of just 30 mph (approximately 50 km/h ), your vehicle is covering a distance of 44 feet (approximately 14 m) every second.

X Switch on the mobile phone and audio system or COMAND (see the separate operating instructions). X Press the = or ; button on the steering wheel to select the Tel menu. You will see one of the following display messages in the multifunction display: RTelephone Ready or the name of the network provider: the mobile phone has found a network and is ready to receive. RNo Service: No network is available. Accepting a call If someone calls you when you are in the Tel menu, a display message appears in the multifunction display, for example:

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X Press 6 on the steering wheel to accept

an incoming call. You can accept a call even if you are not in the Tel menu. Rejecting or ending a call X Press the ~ button on the steering

wheel. You can end or reject a call even if you are not in the Tel menu. Dialing a number from the phone book If your mobile phone is able to receive calls, you can search for and dial a number from the phone book in the audio system or COMAND at any time. X Copy the telephone book of the mobile

phone into the audio system or to COMAND (see the separate operating instructions). X Press the = or ; button on the steering wheel to select the Tel menu. X Press the 9, : or a button to call

up the phone book.

X Press 9 or : to select the name you

are searching for. To start scrolling rapidly, press and hold the 9 or : button for longer than one second. After a short time, the rapid scroll speeds up. Rapid scrolling stops when you release the button or reach the end of the list.

X If only one telephone number is stored for a name: press the 6 or a button to start dialing.

or X If there is more than one number for a particular name: press the 6 or a button to display the numbers.

X Press the 9 or : button to select the

number you want to dial.

X Press the 6 or a button to start

dialing.

or X If you do not want to make a call: press

the ~ button.

Redialing The on-board computer saves the last names or numbers dialed in the redial memory. X Press the = or ; button on the steering wheel to select the Tel menu. X Press the 6 button to switch to the

redial memory.

X Press the 9 or : button to select the

desired name or number.

X Press the 6 or a button to start

dialing.

Assistance menu Deactivating/activating ESP® G Warning! Never switch off the ESP when you see the ESP warning lamp ä flashing in the instrument cluster. In this case proceed as follows: RWhen driving off, apply as little throttle as

possible.

RWhile driving, ease up on the accelerator

pedal.

RAdapt your speed and driving style to the

prevailing road conditions.

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Failure to observe these guidelines could cause the vehicle to skid. The ESP cannot prevent accidents resulting from excessive speed.

Further information about ESP®(Y page 63). This function is not available in AMG vehicles. X Start the engine. X Press the = or ; button on the steering wheel to select the DriveAssist menu. X Press 9 or : to select ESP. X Press a. X To deactivate: press a again.

The å warning lamp in the instrument cluster comes on. G Warning When the å ESP OFF warning lamp lights up, ESP is switched off. When the ä ESP warning lamp and the å ESP OFF warning lamp are on continuously, ESP is not operational due to a malfunction. When ESP is switched off or not operational, the vehicle's stability during standard driving maneuvers is reduced. Adapt your driving style to suit the prevailing road conditions/weather conditions and to the non-operating status of ESP.

X To activate: press a again.

The å warning lamp in the instrument cluster goes out.

Maintenance menu

In the Service menu you can: Rcall up display messages (Y page 183) Rrestart the tire pressure loss warning

system (Canada only) (Y page 275)

Rcheck the tire pressure electronically (USA

only) (Y page 277)

Rcall up the service due date (Y page 243)

Settings menu Introduction

In the Settings menu, you have the following options: RChanging the instrument cluster settings RChanging the time/date settings22
RChanging the lighting settings RChanging the vehicle settings RChanging the convenience settings RRestoring the factory settings

Instrument cluster Selecting the unit of measurement for distance The Display Unit Speed-/Odometer: function allows you to choose whether certain displays appear in km/h or mph in the multifunction display. The selected unit of measurement for distance applies to: Rthe digital speedometer in the Trip menu Rthe odometer and the trip odometer Rthe trip computer Rthe navigation instructions in the Navi menu

22 This function is not available in vehicles with COMAND.

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X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Instr. Cluster submenu. X Press the a button to confirm. X Press the : or 9 button to select the Display Unit Speed-/Odometer. function. You will see the selected setting: km or miles. X Press the a button to save the setting.

Switching the additional speedometer on/off Only vehicles with manual transmission have this function. The Additional Speedometer: function allows you to choose whether the multifunction display also shows the speed in km/h (USA) or mph (Canada). X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Instr. Cluster submenu. X Press the a button to confirm. X Press the : or 9 button to select the Additional Speedometer function. You will see the selected setting: On or Off. X Press the a button to save the setting.

Selecting the permanent display function Only vehicles with automatic transmission have this function. The Permanent Display: function allows you to choose whether the multifunction display always shows the outside temperature or the speed in km/h (USA) or mph (Canada).

X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Instr. Cluster submenu. X Press the a button to confirm. X Press : or 9 to select the Permanent Display: function. You will see the selected setting Outside Temperature or Speedometer [km/h]:. X Press the a button to save the setting.

Time/date This submenu is only available on vehicles with Audio 20. To set the time and date on vehicles with COMAND, see the separate operating instructions. In the Time/date submenu, you can set the time and date. X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Time/date submenu. X Press the a button to confirm. X Press the : or 9 button to select Time: or Date:. The current time or date set is displayed.

X Press a to change the setting. X Press the = or ; button to select the display you want to change: hour, minute, day, month, year.

X Press the : or 9 button to set the

selected display.

X Press the a button to store the entry.

Lights Switching the daytime running lamps on/ off This function is not available in Canada. If you have activated the Daytime Running Lights: function and the light switch is in the

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c position the daytime running lamps are switched on automatically when the engine is running. In the dark, the following also light up: Rthe low-beam headlamps Rthe parking lamps Rthe tail lamps Rthe license plate lamp Rthe side marker lamps X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Lights submenu. X Press the a button to confirm. X Press the : or 9 button to select the Daytime Running Lights: function. You will see the selected setting: Enabled or Disabled. X Press the a button to save the setting.

Activating/deactivating surround lighting and exterior lighting delayed switch-off If you switch on the Locator Lighting: function and the light switch is set to c, Rthe exterior lighting switches on when it is

dark after unlocking the vehicle with the SmartKey. The exterior lighting switches off when you open the driver’s door.

Rthe exterior lighting remains on for 15

seconds when it is dark after closing the doors. If the engine is switched off and then none of the doors are opened, or if an open door is not closed, the exterior lighting goes out after 60 seconds. If you activate the Locator Lighting: function, the following light up:

23 Only for vehicles with front fog lamps. 24 Only for vehicles without front fog lamps.

Rthe parking lamps Rthe tail lamps Rthe fog lamps23
Rthe low-beam headlamps24
Rthe license plate lamp Rthe side marker lamps X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Lights submenu. X Press the a button to confirm. X Press the : or 9 button to select the Locator Lighting: function. You will see the selected setting: Enabled or Disabled. X Press the a button to save the setting. To deactivate the delayed shut-off temporarily: X Before leaving the vehicle, turn the

SmartKey to position 0 in the ignition lock.

X Turn the SmartKey to position 2 in the

ignition lock and back to position 0. The delayed shut-off is deactivated.

The delayed shut-off is reactivated the next time you start the engine. Activating/deactivating the interior lighting delayed switch-off If the Interior Lighting Delay: function is activated and you pull the SmartKey out of the ignition lock, the interior lighting remains on for around 10 seconds. X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Lights submenu. X Press the a button to confirm.

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X Press the : or 9 button to select the Interior Lighting Delay: function. You will see the selected setting: Enabled or Disabled. X Press the a button to save the setting.

X Press the : or 9 button to select the Acoustic Lock Feedback: function. You will see the selected setting: Enabled or Disabled. X Press the a button to save the setting.

Vehicle Activating/deactivating the automatic locking feature If you select the Automatic Door Lock: function, the vehicle is centrally locked above a speed of around 9 mph (15 km/h). i Further information on the automatic

locking feature (Y page 78). X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Vehicle submenu. X Press the a button to confirm. X Press the : or 9 button to select the Automatic Door Lock: function. You will see the selected setting: Enabled or Disabled. X Press the a button to save the setting.

Activating/deactivating the acoustic locking confirmation If you switch on the Acoustic Lock Feedback: function, an acoustic signal sounds when you lock or unlock the vehicle. When unlocking, the signal sounds once. When locking, it sounds three times. X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Vehicle submenu. X Press the a button to confirm.

Convenience Activating/deactivating the EASY- ENTRY/EXIT feature You can use the Easy Entry/Exit: function to activate or deactivate the easy-entry/exit feature (Y page 99). G Warning! You must make sure no one can become trapped or injured by the moving steering wheel when the easy-entry/exit feature is activated. To stop steering wheel movement, move steering wheel adjustment lever or press one of the memory position buttons. Do not leave children unattended in the vehicle, or with access to an unlocked vehicle. Children could open the driver's door and unintentionally activate the easy-entry/exit feature, which could result in an accident and/or serious personal injury.

X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Convenience submenu. X Press the a button to confirm. X Press the : or 9 button to select the Easy Entry/Exit: feature. You will see the selected setting: Enabled or Disabled. X Press the a button to save the setting.

Switching the fold in mirrors when locking function on/off This function is only available in Canada. If you switch on the Fold Mirrors In when Locking: function, the exterior mirrors fold

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in when you lock the vehicle. When you unlock the vehicle and then open the driver's or front-passenger door, the exterior mirrors fold out again. If you have switched the function on and you fold the exterior mirrors in using the button on the door (Y page 100), they will not fold out automatically. The exterior mirrors can then only be folded out using the button on the door. X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Convenience submenu. X Press the a button to confirm. X Press the : or 9 button to select the Fold Mirrors in when Locking: function. You will see the selected setting: Enabled or Disabled. X Press the a button to save the setting.

Resetting to factory settings For safety reasons, the Daytime Running Lights: function in the Light submenu is only reset if the vehicle is stationary. X Press the = or ; button on the steering wheel to select the Settings menu. X Press the : or 9 button to select the Factory Setting submenu. X Press the a button to confirm. The Reset All Settings? message appears. X Press the : or 9 button to select No or Yes. X Press the a button to confirm the selection. If you have selected Yes, the multifunction display shows a confirmation message.

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Display messages Hiding display messages 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. X Press the a or % button on the steering wheel to hide the display message.

The display message is cleared.

The multifunction display shows high-priority display messages 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. Certain display messages are accompanied by an audible warning tone or a continuous tone. Please respond in accordance with the display messages and follow the additional notes in this Operator's Manual.

Message memory You can read the display messages in the message memory. X Press = or ; on the steering wheel to select the Service menu. If there are display messages, the multifunction display shows 2 messages, for example. 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.

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Safety systems Display messages ÷ Inoperative See Operator's Manual

÷ ESC Currently Unavailable See Operator's Manual

Possible causes/consequences and M Solutions G Risk of accident ESP® (Electronic Stability Program), BAS (Brake Assist) and hill start assist are not available due to a malfunction. In addition, the ä and å warning lamps light up in the instrument cluster. The brake system continues to function normally, but without the functions listed above. X Drive on carefully. X Visit a qualified specialist workshop. G Risk of accident ESP®, BAS and hill start assist are temporarily unavailable. In addition, the ä and å warning lamps light up in the instrument cluster. The self-diagnosis function might not be complete, for example. The brake system continues to function normally, but without the functions listed above. 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 Risk of accident ESP®, BAS and hill start assist are temporarily unavailable. In addition, the ä and å warning lamps light up in the instrument cluster. The on-board voltage may be insufficient, for example. The brake system continues to function normally, but without the functions listed above. 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 Visit a qualified specialist workshop.

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Possible causes/consequences and M Solutions G Risk of accident If the display message is shown and the ä warning lamp flashes at the same time, ETS (Electronic Traction System) is deactivated. The brakes on the drive wheels could otherwise overheat. X Let the brakes cool down until the display message disappears

and the ä warning lamp goes out. ETS is active again.

USA only: one or more main functions in the mbrace system are malfunctioning. Canada only: one or more of the main functions of the TELEAID system is 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. G Risk of injury Vehicles with BabySmart™ (Canada only): The BabySmart™ child seat is positioned incorrectly. X Install the child seat in the correct position. G Risk of injury Vehicles with BabySmart™ (Canada only): The sensor for automatic child seat recognition is faulty. X Visit a qualified specialist workshop. G Risk of injury There is a malfunction in the SRS (Supplemental Restraint System). The 6 warning lamp also lights up in the instrument cluster. X Visit a qualified specialist workshop. G Risk of injury SRS has malfunctioned at the front on the left or right. The 6
warning lamp also lights up in the instrument cluster. X Visit a qualified specialist workshop.

Display messages

Tele Aid Inoperative

Check Child Seat Pos. See Operator's Manual

SRS Malfunction Service Required

Front Left SRS Malfunction Service Required orFront Right SRS Malfunction Service Required

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Display messages Rear Left SRS Malfunction Service Required orRear Right SRS Malfunction Service Required Rear Center SRS Malfunction Service Required Left Side Curtain Airbag Malfunction Service Required orRight Side Curtain Airbag Malfunction Service Required

Possible causes/consequences and M Solutions G Risk of injury SRS has malfunctioned at the rear on the left or right. The 6
warning lamp also lights up in the instrument cluster. X Visit a qualified specialist workshop.

G Risk of injury SRS has malfunctioned at the rear center. The 6 warning lamp also lights up in the instrument cluster. X Visit a qualified specialist workshop. G Risk of injury There is a malfunction in the left-hand and/or right-hand window curtain air bag. The 6 warning lamp also lights up in the instrument cluster. X Visit a qualified specialist workshop.

G Warning In the event a malfunction of the SRS is indicated as outlined above, the SRS may not be operational. For your safety, we strongly recommend that you contact an authorized Mercedes-Benz Center immediately to have the system checked. Otherwise the SRS may not be activated when needed in an accident, which could result in serious or fatal injury, or it might deploy unexpectedly and unnecessarily which could also result in injury.

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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, although: Rthere is a child, a small adult or an object weighing less than the

system's weight threshold on the front-passenger seat.

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

attention to road and traffic conditions.

X Engage the parking brake. X Switch off the ignition. 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 adding to the weight applied

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

X Make sure that the seat is unoccupied and has no objects placed on it, close the front-passenger door, and switch on the ignition.

Observe the 45(Y page 41) indicator lamps and the multifunction display and check the following: Seat unoccupied and ignition switched on: Rthe 45 indicator lamp must light up and remain lit. When the indicator lamp is on, OCS (Y page 41) 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. Wait for at least 60 seconds until the necessary system checks have been completed and to make sure that the display messages do not appear in the multifunction display.

If these conditions are met, the front-passenger seat can be occupied again. Whether the 45 indicator lamp remains lit or goes out depends on how OCS classifies the occupant. If the conditions are not met, the system is not operating correctly. X Visit a qualified specialist workshop immediately.

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G Warning If the 45 indicator lamp remains off 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.

Display messages Front Passenger Airbag Disabled See Operator's Manual

Possible causes/consequences and M Solutions The front-passenger air bag is deactivated during the journey even though an adult or a 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 Engage the parking brake. X Switch off the ignition. X Have the occupant get out of the vehicle. X Make sure that the seat is unoccupied and has no objects placed on it, close the front-passenger door, and switch on the ignition.

Observe the 45(Y page 41) indicator lamps and the multifunction display and check the following: Seat unoccupied and ignition switched on: Rthe 45 indicator lamp must light up and remain lit. When the indicator lamp is on, OCS (Y page 41) 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. Wait for at least 60 seconds until the necessary system checks have been completed and to make sure that the display messages do not appear in the multifunction display.

If these conditions are met, the front-passenger seat can be occupied again. Whether the 45 indicator lamp remains lit or goes out depends on how OCS classifies the occupant. If the conditions are not met, the system is not operating correctly. X Visit a qualified specialist workshop immediately.

G Warning If the 45 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.

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Brakes Display messages $(USA only) J(Canada only) ABS and ESC Currently Unavailable See Operator's Manual

Possible causes/consequences and M Solutions G Risk of accident ABS (Anti-lock Braking System), ESP® (Electronic Stability Program), BAS (Brake Assist) and hill start assist are temporarily unavailable. The self-diagnosis might not be finished, for example. In addition, the ä, å and ! warning lamps light up in the instrument cluster. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. 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 Risk of accident ABS, ESP®, BAS and hill start assist are temporarily unavailable. The on-board voltage may be insufficient, for example. In addition, the ä, å and ! warning lamps light up in the instrument cluster. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. 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.

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Display messages $(USA only) J(Canada only) ABS and ESC Inoperative See Operator's Manual

$(USA only) J(Canada only) EBD, ABS, and ESC Inoperative See Operator's Manual

Check Brake Pad Wear $(USA only) J(Canada only) Release Park. Brake $(USA only) J(Canada only) Check Brake Fluid Level

Possible causes/consequences and M Solutions G Risk of accident ABS, ESP®, BAS and hill start assist are unavailable due to a malfunction. In addition, the ä, å and ! warning lamps light up in the instrument cluster. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. X Drive on carefully. X Visit a qualified specialist workshop. G Risk of accident EBD (Electronic Brake force Distribution), ABS, ESP®, BAS and hill start assist are unavailable due to a malfunction. In addition, the ä, å and ! warning lamps in the instrument cluster light up and a warning tone sounds. The brake system continues to function normally, but without the functions listed above. The wheels could therefore lock if you brake hard, for example. 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.

You are driving with the parking brake engaged. A warning tone also sounds. X Release the parking brake.

G Risk of accident There is insufficient 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. 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 parking brake. X Consult a qualified specialist workshop. X Do not add brake fluid. This will not rectify the malfunction.

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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.

Lights i Display messages about LEDs:

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

or X Visit a qualified specialist workshop.

(Y page 111).

(Y page 111).

This display message will only appear if all LEDs have failed. Display messages Check Left Cornering Light orCheck Right Cornering Light Check Left Low Beam orCheck Right Low Beam Check Rear Left Turn Signal orCheck Rear Right Turn Signal Check Front Left Turn Signal orCheck Front Right Turn Signal

(Y page 111).

(Y page 111).

or X Visit a qualified specialist workshop.

or X Visit a qualified specialist workshop.

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

or X Visit a qualified specialist workshop. The rear left-hand or rear right-hand turn signal is faulty. X Check whether you are permitted to change the bulb yourself

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

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Display messages Check Left Mirror Turn Signal orCheck Right Mirror Turn Signal Check Center Brake Lamp

Check Left Brake Lamp orCheck Right Brake Lamp Check Left Tail and Brake Lamps orCheck Right Tail and Brake Lamps Check Left Tail Lamp orCheck Right Tail Lamp Check Left High Beam orCheck Right High Beam

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

(Y page 111).

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 111).

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

(Y page 111).

or X Visit a qualified specialist workshop.

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

(Y page 111).

or X Visit a qualified specialist workshop.

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

(Y page 111).

or X Visit a qualified specialist workshop.

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

(Y page 111).

or X Visit a qualified specialist workshop.

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Display messages Check Left License Plate Lamp orCheck Right License Plate Lamp Check Left Fog Lamp orCheck Front Fog Lamp Check Rear Left Fog Lamp orCheck Rear Right Fog Lamp Check Front Left Parking Lamp orCheck Front Right Parking Lamp Check Left Reverse Lamp orCheck Right Reverse Lamp Check Front Left Sidemarker Lamp orCheck Front Right Sidemarker Lamp

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

(Y page 111).

or X Visit a qualified specialist workshop. X Visit a qualified specialist workshop. The left-hand or right-hand front fog lamp is faulty. X Check whether you are permitted to change the bulb yourself

(Y page 111).

or X Visit a qualified specialist workshop. The left-hand or right-hand rear fog lamp is faulty. X Check whether you are permitted to change the bulb yourself

(Y page 111).

or X Visit a qualified specialist workshop.

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

(Y page 111).

or X Visit a qualified specialist workshop.

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

(Y page 111).

or X Visit a qualified specialist workshop.

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

(Y page 111).

or X Visit a qualified specialist workshop.

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Display messages Check Rear Left Sidemarker Lamp orCheck Rear Right Sidemarker Lamp Check Left Daytime Running Light orCheck Right Daytime Running Light Active Headlamps Inoperative Malfunction See Operator's Manual Auto Lamp Function Inoperative Switch Off Lights

Engine Display messages Check Coolant Level See Operator's Manual

Possible causes/consequences and M Solutions The rear left or right side marker lamp is faulty. X Check whether you are permitted to change the bulb yourself

(Y page 111).

or X Visit a qualified specialist workshop.

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

(Y page 111).

or X Visit a qualified specialist workshop.

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

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

The light sensor is faulty. X Visit a qualified specialist workshop.

The lights are still switched on when you leave the vehicle. A warning tone also sounds. X Turn the light switch to c.

Possible causes/consequences and M Solutions The coolant level is too low. X Add coolant, observing the warning notes when doing so

(Y page 240).

X If coolant needs adding more often than usual, have the engine

coolant system checked at a qualified specialist workshop.

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

! The coolant level is too low. Avoid making long journeys with too little coolant in the cooling

system. The engine will otherwise be damaged. The display messages and the corresponding symbol that indicate that the coolant level is too low must not be ignored. Display messages Coolant Level Low Stop Vehicle Turn Engine Off

Possible causes/consequences and M Solutions The coolant is too hot. X Pull over and stop the vehicle safely as soon as possible, paying

X Make sure that the air supply to the radiator is not blocked, e.g.

attention to road and traffic conditions.

by snow, slush or ice.

X Wait until the display message disappears before restarting the

engine. There is otherwise a risk of engine damage.

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

workshop immediately.

The poly-V-belt may have torn. X Pull over and stop the vehicle safely as soon as possible, 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 OK: X Wait until the display message disappears before restarting the

engine. There is otherwise a risk of engine damage.

X Pay attention to the coolant temperature display. X Visit a qualified specialist workshop.

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.

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! If the coolant temperature exceeds 248 ‡(120 †) do not continue driving. The engine will

otherwise be damaged. Display messages ? The engine fan is faulty.

Possible causes/consequences and M Solutions

X At coolant temperatures below 248 ‡ (120 †), continue driving

to the next qualified specialist workshop.

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

mountainous terrain, and stop-start driving.

# The battery is not being charged.

Possible causes are: Ra faulty 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 OK: X Visit a qualified specialist workshop. The engine oil level has dropped to a critical level. A warning tone also sounds. X Check the oil level (Y page 239). X If necessary, add the engine oil (Y page 240). X Have the engine checked for leaks if engine oil has to be added

more often than usual.

Check Engine Oil At Next RefuelingCheck Engine Oil at Next Refueling

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

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Display messages Possible causes/consequences and M Solutions C There is only a small amount of fuel in the fuel tank.

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

Fuel Level Low Gas Cap Loose

Driving systems Display messages Cruise Control Inoperative

Cruise Control --- mph

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. 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.

Possible causes/consequences and M Solutions Cruise control is faulty. A warning tone also sounds. X Visit a qualified specialist workshop. A condition for activating cruise control has not been met. 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 156).