2012 Mercedes-benz M Class Owners Manual

: New lane during a change of direction

; Uninterrupted lane

Other status indicators of the

navigation system

RO : you have reached the destination or

an intermediate destination.

RNew Route... or Calculating Route: a

new route is being calculated.

: Waveband ; Station18

X To select a stored station: briefly press

the 9 or : button.

X To select a station from the station

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

X To select a station using station

search19: press and briefly hold the 9
or : button.

18 If the station has been stored, the memory position will also be displayed. 19 Only if no station list is received.

230 Menus and submenus

Operating audio player or audio media

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

X Switch on COMAND and select the audio

device or medium (see the separate operating instructions).

X Press the = or ; button on the

DVD changer display (example) : Current DVD in the DVD changer

steering wheel to select the Audio menu.

; Current scene

CD changer display (example) : Current CD in the CD changer

; 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 you press and hold the 9 or : button, the rapid scrolling speed is increased. Not all audio devices or media support this function.

If track information is stored on the audio device 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).

Operating video DVD

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.

X To select the next or previous scene:

briefly press the 9 or : 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® connection 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 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. RTelephone No Service: no network is

available, or the mobile phone is searching for a network.

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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231

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 the6 ora 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 the9 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 ~ or % button.

X Press the 6 button on the steering

Redialing

wheel to accept an incoming call.

If you are not in the Tel menu, you can still accept a call.

Rejecting or ending a call

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

X Press the ~ button on the steering

redial memory.

X Press the9 or: button to select the

desired name or number.

X Press the 6 or a button to start

dialing.

or

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

the ~ or % button.

wheel.

If you are not in the Tel menu, you can still reject or end a call.

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 COMAND at any time. X Press the = or ; button on the steering wheel to select the Tel menu.

X Press the9,: ora button to call

up the phone book.

X Press the9 or: button to select the

desired name. To start scrolling rapidly, press and hold the 9 or : button for longer than one

232 Menus and submenus

Assistance menu

Introduction

In the DriveAssist. menu you can:

Rshow the distance display

Ractivate/deactivate PRE-SAFE® Brake

Ractivate/deactivate ATTENTION ASSIST

X Press a.

The current selection is displayed.

X To activate/deactivate: press a

again.

When PRE-SAFE® Brake (Y page 65) is activated, the multifunction display shows the Ä symbol as long as the HOLD function is not activated (Y page 179).

Vehicles with Active Parking Assist: if PARKTRONIC is activated and you are driving at a speed under 22 mph (35 km/h), the j Active Parking Assist symbol will be displayed instead of the Ä symbol.

Ractivate/deactivate Blind Spot Assist or

Activating/deactivating ATTENTION

Active Blind Spot Assist

ASSIST

Ractivate/deactivate Lane Keeping Assist or

Active Lane Keeping Assist

Showing the distance display

This function is only available with DISTRONIC PLUS. X Press the = or ; button on the

steering wheel to select the DriveAssist menu.

X Press the 9 or : button to select

Distance Display.

X Press a.

The DISTRONIC PLUS distance display (Y page 173) appears in the multifunction display.

Activating/deactivating PRE-SAFE® Brake

PRE-SAFE® Brake is only available in vehicles with DISTRONIC PLUS. X Press the = or ; button on the

steering wheel to select the DriveAssist menu.

X Press the = or ; button on the

steering wheel to select the DriveAssist menu.

X Press the 9 or : button to select

Attention Asst..

X Press a.

The current selection is displayed.

X To activate/deactivate: press a

again.

When ATTENTION ASSIST (Y page 194) is activated, the À symbol appears in the multifunction display when the ignition is on.

Activating/deactivating Blind Spot

Assist

You can use the Blind Spot Asst. function to activate or deactivate Blind Spot Assist (Y page 198) or Active Blind Spot Assist (Y page 202). X Press = or ; on the steering wheel

to select the DriveAssist menu.

X Press9 or: to select Blind Spot

Asst..

X Press 9 or : to select PRE-SAFE

X Press a.

Brake.

The current selection is displayed.

X To activate/deactivate: press a

again.

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233

Activating/deactivating Lane Keeping

Settings menu

Assist

You can use the Lane Keep. Asst. function to activate/deactivate Lane Keeping Assist (Y page 200) or Active Lane Keeping Assist (Y page 205). X Press the = or ; button on the

steering wheel to select the DriveAssist menu.

X Press the 9 or : button to select

Lane Keep. Asst..

X Press a.

The current selection is displayed. X Press the a button to confirm. X Press the : or 9 button to set Off,

Standard or Adaptive.

X Press the a button to save the setting.

If Lane Keeping Assist or Active Lane keeping Assist is activated, the multifunction display shows the à symbol when the ignition is switched on.

Service menu

In the Serv. menu you can:

Rcall up display messages (Y page 238)

Rrestart the tire pressure loss warning

system (Canada only) (Y page 357)

Rcheck the tire pressure electronically

(Y page 359)

Rcall up the service due date (Y page 317)

Introduction

The Sett. menu can be used for:

Rchanging the instrument cluster settings

Rchanging the light 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 kilometers or miles.

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 current consumption and the range Rthe navigation instruction in the Navi menu

RDISTRONIC PLUS

RASSYST PLUS service interval display X Press the = or ; button on the steering wheel to select the Settings menu.

X Press the: or9 button to select the

Instr. cluster submenu.

X Press the a button to confirm.

234 Menus and submenus

X Press the: or9 button to select the

X Press the = or ; button on the

Display Unit Speed-/Odometer function. You will see the selected setting: km or miles.

X Press the a button to save the setting.

Selecting the permanent display 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: or9 button to select the

Instr. cluster submenu.

X Press the a button to confirm. X Press the: or9 button 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.

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 c or à position, the daytime running lamps are switched on automatically during the day 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

steering wheel to select the Sett. menu. X Press the: or9 button to select the

Lights submenu.

X Press the a button to confirm. X Press the: or9 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.

Switching Adaptive Highbeam Assist on/

off X Press the = or ; button on the

steering wheel to select the Sett. menu. X Press the: or9 button to select the

Lights submenu.

X Press the a button to confirm. X Press : or 9 to select the

Adaptive Highbeam Assist: function. You will see the selected setting: Enabled or Disabled.

X Press the a button to save the setting.

Setting the brightness of the ambient

lighting X Press the = or ; button on the steering wheel to select the Settings menu.

X Press the: or9 button to select the

Lights submenu.

X Press the : or 9 button to select

Ambient light. You will see the selected setting. X Press the a button to confirm. X Press the: or9 button to adjust the brightness to any level from Off to Level 5 (bright).

X Press the a or % button to save the

setting.

Setting the ambient lighting color X Press the = or ; button on the steering wheel to select the Settings menu.

X Press the: or9 button to select the

Light submenu.

X Press the a button to confirm. X Press the: or9 button to select the

Ambient light color function. X Press the a button to confirm. X Press the : or 9 button to set the

color to SOLAR, NEUTRAL or POLAR.

X Press the a or % button to save the

setting.

Activating/deactivating surround

lighting and exterior lighting delayed

switch-off If you have activated the Lighting: function and the light switch is in the c or à position, the following functions are active when it is dark:

RSurround lighting: the exterior lighting

remains lit for 40 seconds after unlocking with the key. If you start the engine, the surround lighting is switched off and the automatic headlamp mode is activated (Y page 110).

RExterior lighting delayed switch-off: the exterior lighting remains lit for 60 seconds after the engine has been switched off. If you close all the doors, the exterior lighting goes off after 15 seconds.

If you activate the Lighting: function, the following light up depending on the vehicle's equipment:

Rthe parking lamps

Rthe daytime running lamps

Rthe side marker lamps

Rthe surround lighting in the exterior mirrors X Press the = or ; button on the

steering wheel to select the Sett. menu. X Press the: or9 button to select the

Lights submenu.

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235

X Press the a button to confirm. X Press the: or9 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.

Deactivating delayed switch-off of the exterior lighting 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 exterior lighting delayed switch-off is deactivated.

Delayed switch-off of the exterior lighting is reactivated the next time you start the engine.

Activating/deactivating the interior

lighting delayed switch-off If you activate the Interior Lighting Delay function, the interior lighting remains on for 20 seconds after you remove the SmartKey from the ignition lock. X Press the = or ; button on the steering wheel to select the Settings menu.

X Press the: or9 button to select the

Lights submenu.

X Press the a button to confirm. X Press the: or9 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.

Vehicle

Activating/deactivating the automatic

door 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).

236 Menus and submenus

i For further information on the automatic

locking feature, see (Y page 79).

X Press the = or ; button on the steering wheel to select the Settings menu.

X Press the: or9 button to select the

Vehicle submenu.

X Press the a button to confirm. X Press the: or9 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 verification signal If you switch on the Acoustic Lock feedback function, an acoustic signal sounds when you lock the vehicle. X Press the = or ; button on the steering wheel to select the Settings menu.

X Press the: or9 button to select the

Vehicle submenu.

X Press the a button to confirm. X Press the: or9 button to select the

Acoustic Lock feedback: function. You will see the selected setting: On or Off.

X Press the a button to save the setting.

Activating/deactivating the radar sensor

system

The following systems are switched off when the radar sensor system is deactivated:

RDISTRONIC PLUS (Y page 169)

RBAS PLUS (Y page 62)

RPRE-SAFE® Brake (Y page 65)

RBlind Spot Assist (Y page 198)

RActive Blind Spot Assist (Y page 202)

i USA only: This device has been approved by the FCC as a "Vehicular Radar System". The radar sensor is intended for use in an

automotive radar system only. Removal, tampering, or altering of the device will void any warranties, and is not permitted by the FCC. Do not tamper with, alter, or use in any non-approved way.

Any unauthorized modification to this device could void the user's authority to operate the equipment.

i Canada only:

This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. this device must accept any interference received, including interference that may cause undesired operation.

Any unauthorized modification to this device could void the user's authority to operate the equipment.

X Press the = or ; button on the steering wheel to select the Settings menu.

X Press the: or9 button to select the

Vehicle submenu.

X Press the a button to confirm. X Press the 9 or : button to select Radar Sensor (See Oper. Manual):. You will see the selected setting: Enabled or Disabled.

X Press the a button to save the setting.

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 102).

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 Sett. menu. X Press the: or9 button to select the

Convenience submenu.

X Press the a button to confirm. X Press the: or9 button to select the

Easy Entry/Exit function. You will see the selected setting: Enabled or Disabled.

X Press the a button to save the setting.

Switching the belt adjustment on/off

For further information on belt adjustment (Y page 52). X Press the = or ; button on the steering wheel to select the Settings menu.

X Press the: or9 button to select the

Convenience submenu.

X Press the a button to confirm. X Press the: or9 button to select the

Belt Adjustment function. 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 If you switch on the Fold Mirrors in when Locking function, the exterior mirrors fold in when you lock the vehicle. If you unlock the vehicle and then open the driver's or front-

Menus and submenus

237

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 103), 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 Sett. menu. X Press the: or9 button to select the

Convenience submenu.

X Press the a button to confirm. X Press the: or9 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 Lights submenu is only reset when the vehicle is stationary. X Press the = or ; button on the steering wheel to select the Settings menu.

X Press the: or9 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 select Yes, the multifunction display shows a confirmation message.

238 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 179) and parking (Y page 155).

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 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 to select the Serv. 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

239

Safety systems

Display messages

Possible causes/consequences and M Solutions

!÷ Currently Unavailable See Operator's Manual

G Risk of accident

ABS (Anti-lock Braking System), ESP® (Electronic Stability Program), BAS (Brake Assist), PRE-SAFE®, the HOLD function, hill start assist and ESP® trailer stabilization are temporarily unvailable.

BAS PLUS and PRE-SAFE® Brake may also have failed. In addition, the ÷, å and ! warning lamps light up in the instrument cluster.

The self-diagnosis function might not be complete, for example.

ATTENTION ASSIST is deactivated.

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, PRE-SAFE®, the HOLD function, hill start assist and ESP® trailer stabilization 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.

For example, the on-board voltage may be insufficient.

ATTENTION ASSIST is deactivated.

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.

240 Display messages

Display messages

Possible causes/consequences and M Solutions

!÷ Inoperative See Operator's Manual

÷ Currently Unavailable See Operator's Manual

G Risk of accident

ABS, ESP®, BAS, PRE-SAFE®, the HOLD function, hill start assist and ESP® trailer stabilization 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.

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 Drive on carefully.

X Visit a qualified specialist workshop immediately.

G Risk of accident

ESP®, BAS, PRE-SAFE®, the HOLD function, hill start assist and ESP® trailer stabilization 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.

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.

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241

Display messages

Possible causes/consequences and M Solutions

÷ Inoperative See Operator's Manual

T! ÷ Inoperative See Operator's Manual

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

G Risk of accident

ESP®, BAS, PRE-SAFE®, the HOLD function, hill start assist and ESP® trailer stabilization 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.

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

EBD (electronic brake force distribution), ABS, ESP®, BAS, PRE- SAFE®, the HOLD function, hill start assist and ESP® trailer stabilization 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.

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.

The red F (USA only)/ ! (Canada only) indicator lamp flashes and a warning tone sounds. A condition for automatic release of the electric parking brake is not fulfilled (Y page 156).

You are driving with the electric parking brake applied.

X Release the electric parking brake manually.

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 156).

242 Display messages

Display messages

Possible causes/consequences and M Solutions

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

The yellow ! warning lamp lights up.

The electric parking brake is malfunctioning.

To apply:

X Switch off the ignition.

X Press the electric parking brake handle for at least 10 seconds.

X Shift the transmission to P.

X Consult a qualified specialist workshop.

The yellow ! warning lamp and the red F (USA only)/ ! (Canada only) indicator lamp light up.

The electric parking brake is malfunctioning.

To release:

X Switch off the ignition and turn it back on.

X Release the electric parking brake manually.

or

X Release the electric parking brake automatically (Y page 156).

If the yellow ! warning lamp remains lit or continues to flash:

X Do not drive on.

X Consult a qualified specialist workshop.

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

The electric parking brake is malfunctioning.

To release:

X Switch off the ignition and turn it back on.

X Release the electric parking brake manually.

To apply:

X Switch off the ignition and turn it back on.

X Apply the electric parking brake manually.

If the red F (USA only)/ ! (Canada only) indicator lamp continues to flash:

X Do not drive on.

X Secure the vehicle against rolling away (Y page 334).

X Shift the transmission to P.

X Turn the front wheels towards the curb.

X Consult a qualified specialist workshop.

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243

Display messages

Possible causes/consequences and M Solutions

The yellow ! warning lamp lights up. The red F (USA only)/ ! (Canada only) indicator lamp flashes for approximately 10 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 off the ignition and turn it back on.

X Engage the electric parking brake.

If it is not possible to engage the electric parking brake:

X Shift the transmission to P.

X Visit a qualified specialist workshop.

If it is not possible to release the electric parking brake:

X Release the electric parking brake automatically (Y page 156).

If the electric parking brake still cannot be released:

X Consult a qualified specialist workshop.

The yellow! warning lamp lights up. When you release or apply the electric parking brake manually, the red F (USA only)/ ! (Canada only) indicator lamp flashes.

The electric parking brake is malfunctioning. It is not possible to apply the electric parking brake manually.

X Shift the transmission to P.

X Visit a qualified specialist workshop.

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

The yellow ! warning lamp lights up. The red F (USA only)/ ! (Canada only) indicator lamp flashes for approximately 10 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 Remove the cause for the overvoltage or undervoltage, e.g. by

charging the battery or restarting the engine.

X Engage or release the electric parking brake.

If it remains impossible to apply or release the electric parking brake:

X Switch off the ignition and turn it back on.

X Engage or release the electric parking brake.

If the electric parking brake still cannot be released:

X Consult a qualified specialist workshop.

244 Display messages

Display messages

Possible causes/consequences and M Solutions

F(USA only)!(Canada only) Turn On the Ignition to Release the Parking Brake $(USA only)J(Canada only) Check Brake Fluid Level

The display message is only shown while the vehicle is in motion. The yellow ! warning lamp lights up and the red F (USA only)/ ! (Canada only) indicator lamp flashes.

It is not possible to apply the electric parking brake manually.

X Shift the transmission to P.

X Visit a qualified specialist workshop.

The redF (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.

G Risk of accident

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.

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.

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

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.

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245

Display messages

Possible causes/consequences and M Solutions

Tele Aid Inoperative

PRE-SAFE Inoperative See Operator's Manual

PRE-SAFE Function Currently Limited See Oper. Manual

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.

G Risk of injury

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.

G Risk of accident

PRE-SAFE® Brake is temporarily inoperative if:

Rthe DISTRONIC PLUS cover in the radiator grill is dirty.

Rthe sensors in the bumpers are dirty.

Rits function is impaired due to heavy rain or snow.

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.

PRE-SAFE® Brake 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 322).

X Clean the bumpers (Y page 322).

X Restart the engine.

X Wait until the battery is sufficiently charged.

246 Display messages

Display messages

Possible causes/consequences and M Solutions

PRE-SAFE Functions Limited See Operator's Manual

SRS Malfunction Service Required

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

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

G Risk of accident

PRE-SAFE® Brake is defective. BAS PLUS or the distance warning signal may also have failed.

X Visit aqu alified 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.

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. The6 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.

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247

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.

248 Display messages

Display messages

Possible causes/consequences and M Solutions

Front Passenger Airbag Enabled See Operator's Manual

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.

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 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 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 45(Y page 44) indicator lamp and the multifunction display and check the following:

Seat unoccupied and ignition switched on:

Rthe45 indicator lamp must light up and remain lit. When the indicator lamp is on, OCS (Y page 44) has deactivated the front-passenger air bag.

Rthe Front Passenger Airbag Enabled See Operator's

Manual or Front Passenger Airbag Disabl'd See Operator's Manual display messages must not appear in the multifunction display. Wait for a period of 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 fulfilled, the front-passenger seat can be occupied again. Whether the45 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.

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249

Display messages

Possible causes/consequences and M Solutions

X Visit a qualified specialist workshop immediately.

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

Possible causes/consequences and M Solutions

Front Passenger Airbag Disabl'd See Operator's Manual

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

switch on the ignition.

Observe the 45(Y page 44) indicator lamp and the multifunction display and check the following:

Seat unoccupied and ignition switched on:

Rthe45 indicator lamp must light up and remain lit. When the indicator lamp is on, OCS (Y page 44) 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. Wait for a period of 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 fulfilled, the front-passenger seat can be occupied again. Whether the45 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.

250 Display messages

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.

Lights

i Display messages about LEDs:

This display message will only appear if all LEDs have failed.

Display messages

Possible causes/consequences and M Solutions

Check Left Cornering Light or Check Right Cornering Light Check Left Low Beam or Check Right Low Beam

Check Trailer Left Tail Lamp or Check Trailer Right Tail Lamp Check Trailer Left Turn Signal or Check Trailer Right Turn Signal Check Trailer Brake Lamp

The left or right-hand cornering light is defective.

X Check whether you are permitted to change the bulb yourself

(Y page 114).

or

X Visit a qualified specialist workshop.

The left or right-hand low-beam headlamp is defective.

X Check whether you are permitted to change the bulb yourself

(Y page 114).

or

X Visit a qualified specialist workshop.

The left or right-hand trailer tail lamp is faulty.

X Check whether you are permitted to change the bulb yourself.

or