2011 MERCEDES-BENZ C-CLASS SALOON Owners Manual

Displaying the intermediate time
X
Press =or; to select Interm. Time .
X Press the abutton to confirm.
The intermediate time is displayed fo rfive
seconds.
Starting a new lap
It is possible to store a maximum of sixteen
laps.
X Press ato confirm New Lap .
:
RACETIMER
; Fastest lap time (best lap)
= Lap
Stopping the RACETIMER
X Press the %button on the steering
wheel. X
Press ato confirm YES .
The RACETIMER interrupts timing when you
stop the vehicle and tur nthe key to position
1 in the ignition lock. When you turn the key
to position 2or 3and then press the ato
confirm Start , timing is continued. Resetting the current lap
X
Stop the RACETIMER.
X Press =or; to select Reset Lap .
X Press ato reset the lap time to "0”.
Deleting all laps
If you switch off the engine, the RACETIMER
is reset to "0" after 30 seconds. All laps are
deleted.
You cannot delete individual stored laps. If
you have stopped 16 laps, the current lap
does not have to be reset.
X Reset the current lap.
X Press ato confirm Reset .
Reset Race Timer? appears in the multi-
function display. X
Press the :button to select Yes and
press the abutton to confirm.
All laps are deleted.
Overall evaluation This function is shown if you have stored at
least one lap and stopped the RACETIMER.
X
Press =or; on the steering wheel
to select the AMG menu.
X Press the 9button repeatedly until the
overall evaluation is shown. :
RACETIMER overall evaluation
; Total time driven 246
Displays and operation (12-button multifunction steering wheel)On-board computer and displays

=
Average speed
? Distance covered
A Top speed
Lap evaluation This functio
nis only available if you have
stored at least two laps and have stopped the
RACETIMER.
X Press =or; on the steering wheel
to select the AMG menu.
X Press the 9button repeatedly until the
lap evaluation is shown.
Each lap is shown in a separate submenu.
The fastest lap is indicated by flashing sym-
bol :. :
Lap
; Lap time
= Average lap speed
? Lap length
A Top speed during lap
X Press the 9or: button to select a
different lap evaluation. Displays and operation (12-button multifunction steering wheel)
247On-board computer and displays Z

Display messages
General notes
Display messages appear in th emultifunction display.
Display messages with graphic displays may be shown in simplified for minthe Owner'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 Owner'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 193) and parking (Y page 174).Hiding display messages
You can hide some display messages with a low priority.
X Vehicles with a4-button multifunction steering wheel: pressCon the steering
wheel to clea rthe display message.
The display message is cleared.
X Vehicles with a12-button multifunction steering wheel: pressaor% on the
steering wheel to clear 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
Vehicles with a4-button multifunction steering wheel The on-board computer save
scertain display messages. You can call up these display mes-
sages in the message memory.
X Press the Vbutton on the steering wheel repeatedly until the message memoryis
shown.
If there are no display messages, you will see No messages .Ift
here are displaym essages,
the multifunction display shows 2 messages , for example.
X Using the Cbutton, scroll through the display messages.
For some display messages, the +symbol appears in the multifunction display. You will
find detailed information about these display messages in the section which follows.
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 correspondin gdisplay messages are also deleted. 248
Display messagesOn-board computer and displays

Vehicles with
a12-button multifunction steering wheel 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 2 messages , for example.
X Press the 9or: button to select the entry, e.g. 2 messages .
X Confirm with a.
X Press the 9or: 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 correspondin gdisplay messages are also deleted. Display messages
249On-board computer and displays Z

Safety systems (4-button multifunction steering wheel)
Display messages Possible causes/consequences and
M Solutions
ABS
curr. unavail. G
Risk of accident
ABS (Anti-lock Braking System), ESP ®
(Electronic Stability Pro-
gram), BAS (Brake Assist), PRE-SAFE ®
, the HOLD function, hill
start assist and ESP ®
trailer stabilisation are temporarily not avail-
able.
The adaptive brake lights may also have failed.
In addition, the ÷,åand! 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. The wheels could therefore lock if you
brake hard, for example.
X Carefully drive on a suitable stretch of road, making slight steer-
ing movements, at a speed above 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 stabilisation are temporarily not available.
The adaptive brake lights may also have failed.
In addition, the ÷,åand! warning lamps light up in
the instrument cluster.
For example, the on-board voltage may be insufficient.
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. 250
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
M Solutions
ABS
inoperative G
Risk of accident
ABS, ESP ®
, BAS, PRE-SAFE ®
, the HOLD function, hill start assist
and ESP ®
trailer stabilisation are no tavailable due to a malfunc-
tion.
The adaptive brake lights may also have failed.
In addition, the ÷,å,!andJ 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 Visi taqualified specialist workshop. EBD and ABS
inoperative G
Risk of accident
EBD (electronic brake force distribution), ABS, ESP ®
, BAS,
PRE-SAFE ®
, hill start assist and ESP ®
trailer stabilisation are not
available due to a malfunction.
The adaptive brake lights may also have failed.
In addition, the ÷,åand! warning lamps light up in
the instrument cluster 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. J
Release parking
brake You are driving with the parking brake applied.
Awarning tone also
sounds.
X Release the parking brake. Display messages
251On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
J
Brake immediately A malfunction has occurred while the HOLD function is active.
or
Vehicles wit
hmanual transmission: with the HOLD function
activated, you have:
R opened the driver's door and released the sea tbelt or
R switched off the engine or
R opened the bonnet
At one may also sound at regular intervals. The tone becomes
louder if you attempt to lock the vehicle.
You cannot start the engine.
X Paying attention to the traffic situation, immediately depress the
brake pedal firmly and hold until the display message disap-
pears.
X Prevent the vehicle from rolling away before you leave it
(Y page 342).
You can restart the engine. J
Check brake fluid
level G
Risk of accident
There is insufficien tbrake fluid in the brake fluid reservoir. In addi-
tion, the red Jwarning 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 Apply the parking brake.
X Consult a qualified specialist workshop.
X Do not top up the brake fluid. This does not correct the error. #
Check brake wear The brake pads/linings have reached their wearl
imit.
X Visit a qualified specialist workshop. PRE-SAFE
inoperative G
Risk of injury
Important function sof PRE-SAFE ®
have failed .All other occupant
safety systems, e.g. airbags, remain available.
X Visit a qualified specialist workshop. ü If the symbol appears in the multifunction display,
aseat belt
tongue has been clipped into a rear seat belt buckle.
For further information on the status indicator for the rear seat
belts: (Y page 56). 252
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
M Solutions
ý G
Risk of injury
If the symbol appears in the multifunction display, aseat belt
tongue has not been clipped into a rear seat belt buckle.
X If necessary, ask the occupants in the rear to fasten their seat
belts.
For further information on the status indicator for the rear seat
belts: (Y page 56). Child seat position
G
Risk of injury
Vehicles with automatic child seat recognition on the front-
passenger seat: the child seat is positioned incorrectly.
X Fit the child seat in the correct position. G
Risk of injury
Vehicles with automatic child seat recognition on the front-
passenger seat: the automatic child seat recognition sensor is
faulty.
X Visit a qualified specialist workshop. 6
Malfunction -Work‐
shop- G
Risk of injury
There is a malfunction in the SRS (Supplemental Restraint Sys-
tem). The 6warning lamp also lights up in the instrument clus-
ter.
X Visit a qualified specialist workshop. 6
FL malfunc. -Work‐
shop- or
FR mal‐ func. -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. 6
RL malfunc. -work‐
shop- or
RR mal‐ func. -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. Display messages
253On-board computer and displays Z