steering MERCEDES-BENZ C-CLASS SALOON 2014 Manual Online

Displaying the coolant temperature
The coolant temperature is also shown in the
instrument cluster in the rev counter.
Observe the notes on coolant temperature
(Y page 293).
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Service Servicemenu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Coolant Coolant
submenu.
X Press ato confirm your selection.
The coolant temperature is shown in a bar
display.
Displaying AdBlue ®
level and range This menu is only available in BlueTEC vehi-
cles.
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Service
Service menu.
X Confirm by pressing aon the steering
wheel.
X Select the AdBlue AdBluesubmenu using :or
9.
X Press ato confirm your selection.
The range and AdBlue ®
level appear in a bar
graph in the multifunction display.
Observe the information and notes on "Refu- elling" (Y page 204). Settings menu
Introduction In the
Settings
Settings menu, you have the following
options:
R Changing assistance settings
(Y page 307)
R Changing head-up display settings
(Y page 310)
R Changing the light settings (Y page 311)
R Changing the instrument cluster settings
(Y page 312)
R Changing the vehicle settings
(Y page 313)
R Restoring the factory settings
(Y page 313)
Assistance submenu Deactivating/activating ESP
®
Observe the "Important safety notes" section
in the description of ESP ®
(Y page 80). G
WARNING
If you deactivate ESP ®
, ESP ®
no longer sta-
bilises the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP ®
in the situations descri-
bed in the following. Menus and submenus
307On-boardcompu ter and displays Z

It may be best to deactivate ESP
®
in the fol-
lowing situations:
R when using snow chains
R in deep snow
R on sand or gravel
For further information about ESP ®
, see
(Y page 80).
X Start the engine.
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Assis‐
Assis‐
tance
tance submenu.
X Press ato confirm.
X Press the :or9 button to select
ESP
ESP.
X Press ato confirm.
The current selection is displayed.
X To activate/deactivate: press thea
button again.
If the å warning lamp in the instrument
cluster lights up when the vehicle is ready
to drive, ESP ®
is deactivated.
If the ÷ andå warning lamps light up
continuously, ESP ®
is not available due to a
malfunction.
Observe the information on warning lamps
(Y page 357).
Observe the information on display messages
(Y page 315).
Activating/deactivating the message dis-
play for Traffic Sign Assist
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel. X
Use : or9 to select the Assis‐ Assis‐
tance tance submenu.
X Press ato confirm.
X Press the :or9 button to select
Traffic Sign Assist
Traffic Sign Assist.
X Press the abutton.
The current selection is displayed.
X To activate or deactivate: pressa.
When the display is activated, recognised
traffic signs are displayed in the multifunc- tion display for five seconds.
For further information about Traffic Sign
Assist, see (Y page 256).
Activating/deactivating COLLISION PRE-
VENTION ASSIST PLUS
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Assis‐ Assis‐
tance
tance submenu.
X Press ato confirm.
X Use 9 or: to select Collision
Collision
Prevention
Prevention.
X Press ato confirm.
The current selection is displayed.
X To activate/deactivate: press thea
button again.
When COLLISION PREVENTION ASSIST
PLUS is deactivated, the æsymbol
appears in the multifunction display in the
Assistance graphic Assistance graphic menu.
For further information about COLLISION
PREVENTION ASSIST PLUS, see (Y page 77).308
Menus and submenusOn-board computer and displays

Activating/deactivating PRE-SAFE
®
Brake
PRE ‑SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Assis‐ Assis‐
tance
tance submenu.
X Press ato confirm.
X Press the :or9 button to select
PRE-SAFE Brake
PRE-SAFE Brake.
X Press ato confirm.
The current selection is displayed.
X To activate/deactivate: press thea
button again.
When PRE-SAFE ®
Brake is deactivated, the
æ symbol appears in the Assistance
Assistance
graphic
graphic menu in the multifunction dis-
play.
For more information on PRE‑SAFE ®
Brake,
see (Y page 82).
Activating/deactivating Blind Spot Assist
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Assis‐ Assis‐
tance
tance submenu.
X Press ato confirm.
X Press the :or9 button to select
Blind Spot Assist
Blind Spot Assist .
X Press ato confirm.
The current selection is displayed.
X To activate/deactivate: press thea
button again.
When Blind Spot Assist or Active Blind Spot Assist is activated, grey radar waves prop- agating backwards appear next to the vehi-
cle in the Assistance graphic Assistance graphic menu in
the multifunction display.
For further information about Blind Spot
Assist, see (Y page 259).
For further information about Active Blind
Spot Assist, see (Y page 263).
Setting ATTENTION ASSIST X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings Settingsmenu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Assis‐
Assis‐
tance
tance submenu.
X Press ato confirm.
X Press the :or9 button to select
Attention Assist
Attention Assist .
X Press ato confirm.
X Press the :or9 button to set Off
Off,
Standard
Standard orSensitive
Sensitive .
X Press the abutton to confirm the selec-
tion.
When ATTENTION ASSIST is deactivated,
the é symbol appears in the Assis‐ Assis‐
tance graphic
tance graphic menu in the multifunction
display when the ignition is on.
For further information about ATTENTION
ASSIST, see (Y page 255).
Setting Lane Keeping Assist
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings Settingsmenu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select the Assis‐
Assis‐
tance
tance submenu.
X Press ato confirm.
X Press :or9 to select Lane Keep‐
Lane Keep‐
ing Assist
ing Assist . Menus and submenus
309On-board computer and displays Z

X
Press ato confirm.
The current selection Standard StandardorAdap‐ Adap‐
tive
tive is displayed.
X To change the setting: pressaagain.
For further information about Lane Keeping
Assist; see (Y page 261).
For further information about Active Lane
Keeping Assist; see (Y page 266).
Head-up display submenu Switching other displays on/off
This function is only available if the vehicle is
equipped with Navigation and/or Traffic Sign
Assist.
In the on-board computer, you can select
which contents are shown on the windscreen when the head-up display is activated
(Y page 295).
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings Settingsmenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Head-up display
Head-up display submenu.
X Press ato confirm.
X Press the :or9 buttons to select
Display content
Display content.
X Press ato confirm.
Switching the Traffic Sign Assist display
on/off
X Press the abutton to save the setting.
When you activate the Traffic Sign
Traffic Sign
Assist
Assist display, recognised traffic signs are
shown on the windscreen when the head-
up display is activated. Switching the navigation messages dis-
play on/off
X Vehicles with Traffic Sign Assist:
press :to select Navigation mes‐ Navigation mes‐
sages sages.
X Press the abutton to save the setting.
When you switch on the Navigation
Navigationmes‐
mes‐
sages
sages display, navigation messages are
shown on the windscreen when the head-
up display is activated.
For more information on navigation, see the
separate operating instructions.
Further information on Traffic Sign Assist
(Y page 256).
Setting the position
You can adjust the position of the displayed
contents on the windscreen. X Switch on the Head-up display
(Y page 296).
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Head-up display Head-up display submenu.
X Press ato confirm.
X Use the :or9 button to select the
Position
Position function.
X Press the abutton to save the setting.
X Use the :or9 button to set the
position from Level +5
Level +5toLevel -5
Level -5.
X Press the aor% button to save the
setting.
Using the Memory function, you can save and
call up the position of the head-up display as a single memory preset (Y page 130).
Adjusting the brightness
You can adjust the brightness of the displayed
contents on the windscreen. 310
Menus and submenusOn-board computer and displays

X
Switch on the head-up display
(Y page 296).
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Head-up display
Head-up display submenu.
X Press ato confirm.
X Press the :or9 button to select the
Brightness
Brightness function.
X Press the abutton to save the setting.
X Press the :or9 button to set the
brightness from Level +5
Level +5(bright) to
Level -5
Level -5 (dark).
X Press the aor% button to save the
setting.
Light submenu Switching the Intelligent Light System
on/off
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Lights
Lights submenu.
X Press ato confirm.
X Press the :or9 button to select the
Intelligent Light System
Intelligent Light System function.
If the Intelligent Light System
Intelligent Light System func-
tion has been switched on, the cone of light
and the Lsymbol in the multifunction
display are shown in white.
X Press the abutton to save the setting.
When you activate the Intelligent
IntelligentLight
Light
System
System , you activate the following functions:
R Motorway mode
R Active light function R
Cornering light function
R Extended range foglamps
If you set the dipped-beam headlamps for
driving on the right/left, the multifunction
display shows the Inactive for left-
Inactive for left-
side traffic side traffic orInactive for right-
Inactive for right-
side traffic
side traffic display message instead of
the Intelligent
Intelligent Light
LightSystem
System function in
the Lights
Lights submenu (Y page 311). This dis-
play message will only appear if the setting for
driving on the left/right is set opposite to your
vehicle's country version.
Further information on the Intelligent Light
System (Y page 138).
Setting the dipped-beam headlamps for
driving on the left/right
This function is only available on vehicles with
the Intelligent Light System.
You can use this function to switch between
symmetrical and asymmetrical dipped beam
(Y page 134).
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings Settingsmenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Lights
Lights submenu.
X Press ato confirm.
X Press :or9 to select the Dipped
Dipped
beams Setting for
beams Setting for function.
You will see the selected setting: right-
right-
side traffic
side traffic orleft-side traffic
left-side traffic.
X Press the abutton to save the setting.
If you change the setting, conversion does
not take place until the next time the vehi-
cle is stationary.
If you set the dipped-beam headlamps for
driving on the right/left, then motorway
mode and the extended range foglamps are
unavailable. These are only deactivated if the setting for driving on the left/right is set
opposite to your vehicle's country version. Menus and submenus
311On-board computer and displays Z

A qualified specialist workshop can set the
dipped-beam headlamps for driving on the
left/right.
Instrument cluster submenu Selecting the unit of measurement for dis-
tance
The Display unit Speed-/odometer:
Display unit Speed-/odometer:
function allows you to choose whether cer-
tain displays appear in kilometres or miles in the multifunction display.
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings Settingsmenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Instrument cluster
Instrument cluster submenu.
X Press ato confirm.
X Press the :or9 button to select the
Display unit Speed-/odometer
Display unit Speed-/odometer func-
tion.
You will see the selected setting: km kmor
Miles
Miles.
X Press the abutton to save the setting.
The selected unit of measurement for dis-
tance applies to:
R digital speedometer in the Trip
Tripmenu
R total distance recorder and the trip meter
R trip computer
R current consumption and the range
R navigation instructions in the Navi
Navi menu
R cruise control
R SPEEDTRONIC
R DISTRONIC PLUS
R ASSYST PLUS service interval display
Selecting the permanent display function
Using the Permanent display
Permanent display function you
can enable outside temperature and addi-
tional speedometer displays in the status
area of the multifunction display. X
Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Instrument cluster Instrument cluster submenu.
X Press ato confirm.
X Press :or9 to select the Perma‐
Perma‐
nent display
nent display function.
X Press ato confirm.
The current selection Outside tempera‐
Outside tempera‐
ture
ture orAdditional speedometer
Additional speedometer is dis-
played.
X To change the setting: pressaagain.
Switching the additional speedometer
on/off
United Kingdom only:
The speed is shown continuously in mph mphas a
digital display in the status area. The addi-
tional speedometer cannot be switched on or off.
Use the Digital Digital speedo
speedofunction to choose
whether the status area in the multifunction
display shows the speed digitally. The unit in
the additional speedometer is always inverse to the speedometer unit.
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings Settingsmenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Instrument cluster
Instrument cluster submenu.
X Press ato confirm.
X Use : or9 to select the Digital
Digital
speedo
speedo function.
The current selection is displayed.
X To switch on/off: press theabutton
again. 312
Menus and submenusOn-board computer and displays

Vehicle submenu
Setting permanent SPEEDTRONIC
X Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settings menu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Vehicle
Vehicle submenu.
X Press ato confirm.
X Press the :or9 button to select the
Limit speed (winter tyres)
Limit speed (winter tyres) function.
You will see the current setting.
X Press ato confirm.
X Press the :or9 button to adjust
permanent SPEEDTRONIC in increments of
ten ( 240 km/h
240 km/h to160 km/h
160 km/h). The Off
Offset-
ting switches permanent SPEEDTRONIC
off.
X Press the abutton to store the entry.
For further information on permanent SPEED-
TRONIC (Y page 221).
Restoring the factory settings X
Use ò on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Settings
Settingsmenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Factory settings
Factory settings submenu.
X Press ato confirm.
The Reset all settings?
Reset all settings? message
appears.
X Press the :or9 button to select No
No
or Yes
Yes .
X Press the abutton to confirm the selec-
tion.
If you have selected Yes
Yes , the multifunction
display shows a confirmation message. For safety reasons, not all functions are reset:
the Limit Limit speed
speed(winter
(winter tyres)
tyres)function
in permanent SPEEDTRONIC can only be set
in the Vehicle Vehicle submenu. Menus and submenus
313On-board computer and displays Z

Display messages
Introduction
General notes Display messages appear in the multifunction display.
Display messages with graphic symbols are simplified in the Owner's Manual and may differ
from the symbols in the multifunction display.
Please respond in accordance with the display messages and follow the additional notes in this Owner's Manual.
With certain display messages, you will also hear a warning tone.
You can hide the display messages. The display messages are then stored in the message
memory. Rectify the cause of a display message as soon as possible.
When you stop and park the vehicle, please observe the notes on:
R HOLD function (Y page 232)
R Parking (Y page 207)
Hides display messages X
Press the aor% 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. Some high-priority dis- play messages cannot be hidden.
The multifunction display shows these messages continuously until the causes for the mes-
sages have been remedied.
Message memory The on-board computer saves certain display messages in the
message memory. You can call
up the display messages:
X Use ò on the steering wheel to call up the list of menus.
X Press the :or9 button on the steering wheel to select the Service
Service menu.
X Confirm by pressing aon the steering wheel.
X Press :or9 to select the message memory.
If there are no display messages, you will see No messages
No messages in the multifunction display.
If there are display messages, the number of messages stored is shown.
X Press ato confirm.
X Press the :or9 button to scroll through the display messages. 314
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions AIRMATIC is faulty. A warning tone also sounds.
X Do not drive at speeds above 80 km/h.
X Make only slight steering movements. Otherwise, the front
wings or the tyres could be damaged if the steering movement
is too great.
X Listen for scraping sounds.
X Pull over and stop the vehicle safely, paying attention to road
and traffic conditions, and select a higher vehicle level.
Depending on the malfunction, it may be possible to raise the
vehicle.
X Visit a qualified specialist workshop. ¨
Malfunction Malfunction The AIRMATIC function is restricted. The vehicle's handling char-
acteristics may be affected.
X Do not drive at speeds above 80 km/h.
X Visit a qualified specialist workshop. Lane Keeping
Lane Keeping
Assist currently Assist currently
unavailable See unavailable See
Owner's Manual Owner's Manual
or
Active Lane Keep‐
Active Lane Keep‐
ing Assist cur‐ ing Assist cur‐
rently rently unavailable
unavailable
See Owner's Manual
See Owner's Manual Lane Keeping Assist or Active Lane Keeping Assist is deactivated
and temporarily inoperative. Possible causes:
R the windscreen is dirty in the camera's field of vision
R visibility is impaired due to heavy rain, snow or fog
R there are no lane markings for a long or extended period
R the lane markings are worn, dark or covered, e.g. by dirt or snow
Once the causes listed above no longer apply, the display message goes out.
Lane Keeping Assist or Active Lane Keeping Assist is operational
again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle to prevent it from rolling away (Y page 207).
X Clean the windscreen. Lane Keeping Lane Keeping
Assist inopera‐ Assist inopera‐
tive tive
orActive
Active
Lane Keeping
Lane Keeping
Assist inoperative Assist inoperative Lane Keeping Assist or Active Lane Keeping Assist is faulty.
X Visit a qualified specialist workshop. 338
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Blind Spot Assist
Blind Spot Assist
currently unavail‐ currently unavail‐
able See Owner's able See Owner's
Manual Manual
orActive
Active
Blind Spot Assist
Blind Spot Assist
currently unavail‐ currently unavail‐
able See Owner's able See Owner's
Manual Manual Blind Spot Assist or Active Blind Spot Assist is temporarily inop-
erative. Possible causes:
R the function is 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
Once the causes listed above no longer apply, the display message goes out.
Blind Spot Assist or Active Blind Spot Assist is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle to prevent it from rolling away (Y page 207).
X Restart the engine. Blind Spot Assist Blind Spot Assist
not not
available
available when
when
towing a trailer
towing a trailer
See See Owner's
Owner's Manual
Manual
or Active Blind
Active Blind
Spot Assist not
Spot Assist not
available available when
whentow‐
tow‐
ing a trailer See
ing a trailer See
Owner's Manual Owner's Manual Blind Spot Assist or Active Blind Spot Assist is deactivated while
towing a trailer.
You have established the electrical connection between the trailer
and your vehicle.
X Press aon the steering wheel to confirm the display mes-
sage. Blind Spot Assist Blind Spot Assist
inoperative inoperative
or
Active Blind Spot
Active Blind Spot
Assist inoperative Assist inoperative Blind Spot Assist or Active Blind Spot Assist is faulty.
X Visit a qualified specialist workshop. Park
Park
Assist
Assist cancel‐
cancel‐
led
led The driver's door is open.
X Repeat the parking gap measurement and parking process with
the driver's door closed. You touched the multifunction steering wheel while steering inter-
vention was active.
X While steering intervention is active, make sure not to touch the
multifunction steering wheel. The vehicle has started to skid and ESP
®
has intervened.
X Use Active Parking Assist again later (Y page 239). Display
messages
339On-board computer and displays Z