2011 MERCEDES-BENZ C-CLASS COUPE radio

:
Waveband
; Station 11
X To select astore dstation: 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 astation using station
search 12
:press and briefly hold the 9
or : button.
i DAB radio mode ( DigitalAudioBroadcast-
ing); see the separate operating instruc-
tions.
Audio player or audio media operation Audio data from various audi
odevices or
media can be played, depending on the equip-
ment fitted in the vehicle.
X Switch on the audio system or COMAND
Online and select the audio device or
medium (see the separate operating
instructions).
X Press the =or; button on the steer-
ing wheel to select the Audio menu.
CD changer display (example)
:
Current track X
To select the next/previous track:
briefly press the 9or: 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 9or: but-
ton, 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 curren ttrack does not appear in audio
AUX mode (Auxiliary audio mode: external
audio source connected).
Video DVD operation X
Switch on COMAND Online and select
video DVD (see the separate operating
instructions).
X Press the =or; button on the steer-
ing wheel to select the Audio menu.
DVD changer display (example)
:
Current scene
X To selectt he next or previous scene:
briefly press the 9or: button.
X To selectas cene from the scene list
(rapid scrolling): press and hold the
9 or: buttonuntil the desired
scene has been reached.
11 If the statio nhas been stored, the memory position will also be displayed.
12 Only if no statio nlist is received. 218
Displays and operation (12-button multifunction steering wheel)On-board computer and displays

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 curren tsetting.
X Press the abutton to confirm.
X Press :or9 to adjust permanent
SPEEDTRONIC in increments of 10
(230 km/h to
160 km/h ). The
Off setting
switches permanent SPEEDTRONIC off.
X Press the abutton to store the entry.
Switching the automatic locking feature
on/off
If you select the Automatic door lock func-
tion, the vehicle is centrally locked above a
speed of around 15 km/h.
i For further information on the automatic
locking feature, see (Y page 84).
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 the :or9 button to select the
Automatic door lock function.
When the Automatic door locks func-
tion is activated, the vehicle doors are dis-
played in red in the multifunction display.
X Press the abutton to save the setting.
Activating/deactivating the acoustic
locking confirmation
If you activate the Acoustic Lock function,
an audible signal sounds when the vehicle is
locked or unlocked. When unlocking, the sig-
nal sounds once. When locking, it sounds
three times. 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 the :or9 button to select the
Acoustic Lock function.
If the Acoustic Lock function is activated,
the & symbol in the multifunction dis-
play lights up red.
X Press the abutton to save the setting.
Activating/deactivating the radar sensor
system
i You must deactivate the radar sensor sys-
tem in certain countries and near radio
telescope facilities. For further informa-
tion, see (Y page 363).
When you are close to radio telescope facili-
ties, the radar sensor system will be deacti-
vated automatically.
The following systems are switched off when
the radar sensor system is deactivated:
R DISTRONIC PLUS (Y page 164)
R BAS PLUS (Y page 66)
R PRE-SAFE ®
Brake (Y page 71)
R Blind Spot Assist (Y page 190)
R Active Blind Spot Assist (Y page 194)
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 the 9or: button to select
Radar sensor (See Owner's Man.): .
You will see the selected setting: on or
off .
X Press the abutton to save the setting. 226
Displays and operation (12-button multifunction steering wheel)On-board computer and displays

Display messages Possible causes/consequences and
M Solutions
PRE-SAFE
Functions cur‐
rently limited See
Owner's Manual G
Risk of accident
PRE-SAFE ®
Brake is temporarily inoperative if:
R the DISTRONIC PLUS cover in the radiator grille is dirty.
R the sensors in the bumpers are dirty.
R its function is impaired due to heavy rain or snow.
R the rada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
R AMG vehicles only: you switch off ESP ®
R the system is outside the operating temperature range.
R the on-board voltage is too low.
PRE-SAFE ®
Brake is operational again and the display message
disappears if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system detects that the sensors are fully available again.
R AMG vehicles only: you reactivate ESP ®
R the system is within the operating temperature range.
If the display message continues to be displayed:
X Clean the DISTRONIC PLUS cover in the radiator grille
(Y page 309).
X Clean the bumpers (Y page 309).
X Restart the engine.
X Wait until the battery is sufficiently charged. PRE-SAFE
Functions limited
See Owner's Manual G
Risk of accident
PRE-SAFE ®
Brake is faulty. BASP LUS or the distance warning sig-
nal may also have failed.
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 54). 242
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
M Solutions
Speed Limit Assist
currently unavail‐
able See Owner's
Manual Speed Limit Assis
tis deactivated and temporarily inoperative if:
R the windscreen is dirty in the camera's field of vision.
R visibility is impaired due to heavy rain, snow or fog.
Speed Limit Assist is operational againa nd the display message
disappears if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system detects tha tthe camera is fully operational again.
If the display message continues to be displayed:
X Cleant he windscreen. Speed Limit Assist:
Unavailable in
this country Speed Limit Assist is only available in certain countries.
X
Drive on.
Speed Limit Assist is available again when you drive in a country
in which its use is approved. Speed Limit Assist
inoperative Speed Limit Assist is faulty.
X
Visit a qualified specialist workshop. HOLD
Off The HOLD function is deactivated. The vehicle is skidding.
Aw
arning tone also sounds.
X Reactivate the HOLD function later (Y page 177). The HOLD function is deactivated. When the brak
epedal is firmly
depressed, an activation condition is not fulfilled.
Aw arning tone also sounds.
X Check the activation conditions for the HOLD function
(Y page 177). Radar sensor
deactivated autom.
See Owner's Manual Vehicles with a navigation system: the vehicle is close to a radio
telescope facility and is therefore prohibited from transmitting any
radar signals. The radar sensor system has switched off automat-
ically (Y
page 363).
DISTRONI CPLUS (Y page 164) is deactivated automatically if it is
activated. Awarning tone also sounds.
Blind Spo tAssist (Y page 190) or Active Blind Spot Assist
(Y page 194) is deactivated automatically if it is activated. The
yellow 9indicator lamps also light up in the exterior mirrors.
BAS PLUS (Brake Assist PLUS) (Y page 66) and PRE-SAFE®
Brake
(Y page 71) are then also not available.
X Drive on.
Once you have moved far enough away from the radio telescope,
the above functions are available again. Display messages
257On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
Blind Spot Assist
currently unavail‐
able See Owner's
Manual or
Active Blind Spot Assist
currently unavail‐
able See Owner's
Manual Blind Spot Assis
torActive Blind Spot Assist is temporarily inop-
erative if:
R you have established the electrical connection between the
traile rand your vehicle.
R the sensors are dirty.
R its functio nis impaired due to heavy rain or snow.
R the radar sensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
The yellow 9indicator lamps also light up in the exterior mir-
rors.
X When towing a trailer, confirm the display message with a.
When driving without a trailer:
Blind Spot Assist or Active Blind Spot Assist is operational again
and the display message disappears if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system detects that the sensors are fully available again.
R the radar sensor system is back within the operating tempera-
ture range.
If the display message continues to be displayed:
X Cleant he sensors (Y page 309).
X Restart the engine. Blind Spot Assist
inoperative or
Active Blind Spot Assist inoperative Blind Spot Assist or Active Blind Spot Assist is faulty.
The yellow
9indicator lamps also light up in the exterior mir-
rors.
X Visit a qualified specialist workshop. Parking Guidance
inoperative Parking Guidance is malfunctioning (Y
page 183).
X Restart the engine.
If the display message continues to be displayed:
X Visit a qualified specialist workshop. Display messages
259On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
DISTRONIC PLUS
currently unavail‐
able See Owner's
Manual DISTRONIC PLU
Sis deactivated and is temporarily inoperative if:
R the DISTRONIC PLUS cover in the radiator grille is dirty.
R the sensors in the bumpers are dirty.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
R its function is impaired due to heavy rain or snow.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
Aw arning tone also sounds.
DISTRONIC PLU Sis operational againa nd the display message
disappears if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system detects tha tthe sensors are fully available again.
R the system is within the operating temperature range.
If the display message continues to be displayed:
X Clean the DISTRONIC PLUS cover in the radiator grille
(Y page 309).
X Cleant he bumpers (Y page 309).
X Restart the engine. DISTRONIC PLUS
inoperative DISTRONIC PLUS is faulty. BAS PLUS and PRE-SAFE
®
Brake may
also have failed.
Aw arning tone also sounds.
X Visi taqualified specialist workshop. DISTRONIC PLUS
suspended You have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.
X
Take your foot off the accelerator pedal. DISTRONIC PLUS
--- km/h An activation condition for DISTRONIC PLUS is not fulfilled.
X
Check the activation conditions for DISTRONIC PLUS
(Y page 164). DISTRONIC PLUS and
SPEEDTRONIC
inoperative DISTRONIC PLUS and SPEEDTRONIC are faulty. A warning tone
also sounds.
X
Visit a qualified specialist workshop. Cruise control and
SPEEDTRONIC
inoperative Cruise control and SPEEDTRONIC are malfunctioning.
Aw
arning tone also sounds.
X Visi taqualified specialist workshop. Display messages
261On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
Check
tyre(s) G
Risk of accident
The tyre pressure in one or more tyres has dropped significantly.
The wheel position is displayed in the multifunction display.
Aw arning tone also sounds.
X Stop the vehicle without making any sudde nsteering or braking
manoeuvres .Pay attentio nto the traffic conditions as you do
so.
X Correct the tyre pressure (Y page 342).
X If necessary, change a wheel (Y page 344).Caution,
tyre defect G
Risk of accident
The tyre pressure in one or more tyres has dropped suddenly. The
wheel position is displayed in the multifunction display.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do
so.
X If necessary, change a wheel (Y page 344).Rectify
tyre pressure The tyre pressure is too low in at least one of the tyres or the tyre
pressure difference between the wheels is too great.
X
Check the tyre pressures at the next opportunity. If necessary,
correct the tyre pressure (Y page 342).Wheel sensor(s)
missing There is no signal from the tyre pressure sensor of one or several
wheels. The pressure of the affected tyre is not displayed in the
multifunction display.
X
Have the faulty tyre pressure sensor replaced at a qualified spe-
cialist workshop. Tyre press. monitor
currently unavail‐
able Due to a source of radio interference, no signals can be received
from the wheel sensors. The tyre pressure monitor is temporarily
malfunctioning.
X
Drive on.
The tyre pressure monitor restarts automatically as soon as the
problem has been solved. 264
Display messagesOn-board computer and displays

Key (4-button multifunction steering wheel)
Display messages Possible causes/consequences and
M Solutions
Key does not
belong to vehicle You have put the wrong key in the ignition lock.
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 ( Ypage 80). 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. 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 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. 270
Display messagesOn-board computer and displays