2011 MERCEDES-BENZ C-CLASS SALOON key

Outside temperature display
The outside temperature display is in the mul-
tifunction display (Y page 228). G
WARNING
At temperatures just above freezing point, the
street may be icy, especially in wooded areas
or on bridges. If you do not adapt your driving
style to the conditions ,the vehicle could skid.
For this reason, adapt your driving style and
speed to the weather conditions.
Changes in the outside temperature are dis-
played after a short delay. Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
Cruise control (Y page 178) activated:
The segments light up from the stored speed
to the maximum speed.
Variable SPEEDTRONIC (Y page 180) activa-
ted:
The segments light up from the start of the
scale to the selected limit speed.
DISTRONIC PLUS (Y page 183) activated:
One or two segments in the set speed range
light up.
DISTRONIC PLUS detects a vehicle in front:
The segments between the speed of the vehi-
cle in front and the stored speed light up. Operating the on-board computer
Overview The on-board computer is activated as soon
as you turn the key to position 1in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel. :
Multifunction display
; Switches on LINGUATRONIC; see the sep-
arate operating instructions
= Right control panel
? Left control panel
A Back button
Left control panel =
; R
Calls up the menu and menu bar 9
:
Press briefly:
R
Scrolls through lists
R Selects a submenu or function
R In the Audio menu: selects a
stored station, an audio track or
a video scene
R In the Tel (telephone) menu:
switches to the phone book and
selects a name or telephone
number Displays and operation (12-button multifunction steering wheel)
227On-board computer and displays Z

_
symbol in the multifunction display
are shown in red.
X Press the abutton to save the setting.
Activating/deactivating the surround
lighting and exterior lighting delayed
switch-off
If you have activated the Surround light‐ing function and the light switch is set to
Ã, the following functions are activated
when it is dark:
R Surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the key. The exterior lighting switches
off when you open the driver's door.
R Exterior 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 Surround lighting func-
tion, the following light up depending on the
vehicle's equipment:
R the side lamps
R the foglamps
R the daytime driving lights
R the surround lighting in the exterior mirrors
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Surround lighting function.
When the Surround lighting function is
activated, the light cone and the area
around the vehicle are displayed in red in
the multifunction display.
X Press the abutton to save the setting. Deactivating delayed switch-off of the exte-
rior lighting temporarily:
X
Before leaving the vehicle, turn the key to
position 0in the ignition lock.
X Turn the key to position 2in 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 light-
ing delayed switch-off
If you activate the Light. delay function,
the interior lighting remains on for 20 sec-
onds after you remove the key from the igni-
tion lock.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Light. delay function.
When the Light. delay function is acti-
vated, the vehicle interior is displayed in
red in the multifunction display.
X Press the abutton to save the setting.
Vehicle Setting permanent SPEEDTRONIC
You can set permanent SPEEDTRONIC
(Y
page 183) using the Limit speed (win‐ ter tyres) function.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Vehicle submenu.
X Press the abutton to confirm.
X Press :or9 to select the Limit speed (winter tyres): function.
You will see the current setting. Displays and operation (12-button multifunction steering wheel)
241On-board computer and displays Z

G
WARNING
The steering wheel moves when the EASY-
ENTRY/EXIT feature is active. There is a risk
of occupants becoming trapped. Before acti-
vating the EASY-ENTRY/EXIT feature, make
sure that nobody can become trapped.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system. The children could open the
driver's door and thereby unintentionally acti-
vate the EASY-ENTRY/EXIT feature and
become trapped.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Convenience submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Easy Entry/Exit function.
If the Easy Entry/Exit function is activa-
ted, the vehicle steering wheel is displayed
in red in the multifunction display.
X Press the abutton to save the setting.
Switching the belta djustmenton/off
For further information on belt adjustment,
see (Y page 55).
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Convenience submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Belt adjustment function.
When the Belt adjustment function is
activated, the vehicle seat belt is displayed
in red in the multifunction display.
X Press the abutton to save the setting.
Switching the fold in mirrors when lock-
ing function on/off
If you switch on the Auto. fold in function,
the exterior mirrors fold 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 mirror
sinusing the button
on the door (Y page 113), 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 steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Convenience submenu.
X Press the abutton to confirm.
X Press the :or9 to select the
Auto. fold in function.
If the Auto. fold in function is activated,
the vehicle's exterior mirror is displayed in
red in the multifunction display.
X Press the abutton to save the setting.
Resetting to factory settings For safety reasons, not all functions are reset:
the Limit Speed (winter tyres) function
in permanent SPEEDTRONIC can only be set
in the Vehicle submenu. If you want to reset
the Daytime driving lights function in
the Light submenu, you must turn the key in
the ignition lock to position 1.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Factory setting submenu.
X Press the abutton to confirm.
The Reset all settings? message
appears.
X Press the :or9 button to select
No or
Yes .
X Press the abutton to confirm the selec-
tion.
If you select Yes , the multifunction display
shows a confirmation message. 244
Displays and operation (12-button multifunction steering wheel)On-board computer and displays

AMG men
uin AMG vehicles
AMG displays X
Press =or; on the steering wheel
to select the AMG menu.
:
Digital speedometer
; Gear indicator
= Upshift indicator
? Engine oil temperature
A Coolant temperature
Upshift indicator UP =
indicates that the
engine has reached the overrevving range
when in the manual gearshift program.
Upshift indicator UP =
fades out other mes-
sages until you have shifted up.
When the engine oil temperature is below
80 †, the oil temperature is shown in blue.
Avoid driving at full engine output during this
time.
SETUP SETUP shows the drive program, the ESP
®
(Electronic Stability Program) mode and the
SPORT handling mode.
X Press =or; on the steering wheel
to select the AMG menu.
X Press the 9button repeatedly until
SETUP is displayed. :
Drive program (C/S/S+/M)
; ESP ®
mode (ON /OFF ) or SPORT handling
mode (SPORT )
RACETIMER Displaying and starting the RACETIMER
You can use the RACETIMER to store lap
times.
X
Press =or; on the steering wheel
to select the AMG menu.
X Press the 9button repeatedly until the
RACETIMER is shown.
i If RACETIMER is selected, the menu bar
cannot be called up with the =
and ; buttons. :
Lap
; RACETIMER
You can start the RACETIMER when the
engine is running or if the key is in position
2 in the ignition lock.
X To start: press the abutton to start the
RACETIMER. Displays and operation (12-button multifunction steering wheel)
245On-board computer and displays Z

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

Display messages Possible causes/consequences and
M Solutions
Telephone No
Service Your vehicle is outside the network provider's transmitter/
receiver range.
X
Wait until the mobile phone operational readiness symbol
appears in the multifunction display. ¥
Top
up washer fluid The washer fluid level in th
ewasher fluid reservoir has dropped
below the minimum.
X Top up the washe rfluid (Y page 325). Key (4-button multifunction steering wheel)
Displa
ymessages Possible causes/consequences and
M Solutions
Key does not
belong to vehicle You have put the wrong key in the ignitio
nlock.
X Use the correct key. +
Replace key The key needs to be replaced.
X
Visit a qualified specialist workshop. +
Change battery The batteries of the KEYLESS-GO key are discharged.
X
Change the batteries (Y page 86).Key not detected
(Red display message) The KEYLESS-GO key is not in the vehicle.
Aw
arning tone also sounds.
If the engine is switched off, you can no longer loc kthe vehicle
centrally or start the engine.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the parking brake.
X Locate the KEYLESS-GO key. The KEYLESS-GO key is not detected while the engine is running
because there is interference from a strong source of radio waves.
Aw
arning tone also sounds.
X Pull ove rand stop the vehicle safely as soo nas possible, paying
attention to road and traffic conditions.
X Apply the parking brake.
X Operate the vehicle with the key in the ignition lock if necessary. 288
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
M Solutions
Key not detected
(White display mes-
sage) The KEYLESS-GO key cannot be detected at present.
X
Change the location of th ekey with the KEYLESS-GO functions
in the vehicle.
If the KEYLESS-GO key is still not detected:
X Change the location of the key with the KEYLESS-GO functions
in the vehicle.
X Operate the vehicle with the key in the ignition lock if necessary. +
Key still in vehi‐
cle The KEYLESS-GO key has been detected inside the vehicle during
locking.
X
Remove the KEYLESS-GO key from the vehicle. +
Insert key KEYLESS-GO is temporarily malfunctioning or is defective.
Awarn-
ing tone also sounds.
X Insert the key into the ignition lock and turn it to the desired
position.
X Visi taqualified specialist workshop. Close doors
to lock veh. At least one door is open.
Awarning tone also sounds.
X Close all doors and loc kthe vehicle again. Key (12-button multifunction steering wheel)
Display messages Possible causes/consequences and
M Solutions
Â
Key does not
belong to vehicle You have put the wrong key in the ignition lock.
X
Use the correct key. Â
Replace key The key needs to be replaced.
X Visit a qualified specialist workshop. Â
Change key batter‐
ies The batteries of the KEYLESS-GO key are discharged.
X
Change the batteries (Y page 86). Display messages
289On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
Â
Key not detec‐
ted (red display mes-
sage) The KEYLESS-GO key is not in the vehicle.
Aw
arning tone also sounds.
If the engine is switched off, you can no longer loc kthe vehicle
centrally or start the engine.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the parking brake.
X Locate the KEYLESS-GO key. The KEYLESS-GO key is not detected while the engine is running
because there is interference from a strong source of radio waves.
Aw
arning tone also sounds.
X Pull ove rand stop the vehicle safely as soo nas possible, paying
attention to road and traffic conditions.
X Apply the parking brake.
X Operate the vehicle with the key in the ignition lock if necessary. Â
Key not detected
(White display mes-
sage) The KEYLESS-GO key cannot be detected at present.
X
Change the location of the key with the KEYLESS-GO functions
in the vehicle.
If the KEYLESS-GO key is still not detected:
X Operate the vehicle with the key in the ignition lock if necessary. Â
Key still in vehi‐
cle The KEYLESS-GO key has been detected inside the vehicle during
locking.
X
Remove the KEYLESS-GO key from the vehicle. Â
Remove starting
button, then
insert key KEYLESS-GO is temporarily malfunctioning or is defective.
Awarn-
ing tone also sounds.
X Insert the key into the ignition lock and turn it to the desired
position.
X Visi taqualified specialist workshop. Â
Close doors to
lock vehicle At least one door is open.
Awarning tone also sounds.
X Close all doors and loc kthe vehicle again. 290
Display messagesOn-board computer and displays