2018 MERCEDES-BENZ C-CLASS COUPE service

XPress the:or9 button to adjust the
brightness to a level from Level+5(bright) to
Level -5(dark).
XPress the aor% button to save the
setting.
Light submenu
Switching the daytime running lamps on/
off
This function is not available in Canada.
XPress òon the steering wheel to open the
menu list.
XPress :or9 on the steering wheel to
select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the Lightssubmenu.
XPressato confirm.
XUsing :or9, select the DaytimeRunning Lightsfunction.
If the DaytimeRunningLightsfunction has
been switched on, the multifunction display
shows the cone of light and the Wsymbol
in yellow.
XPress the abutton to save the setting.
Further information on daytime running
lampsDaytime
RunningLights(Ypage 108).
Instrument cluster submenu
Selecting the distance unit
The DisplayUnitSpeed-/Odometerfunction
allows you to choose whether certain displays
appear in kilometers or miles in the multifunc-
tion display.
XPress the òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XUse : or9 to select the InstrumentClustersubmenu.
XPressato confirm.
XPress :or9 to select the DisplayUnit Speed-/Odometerfunction.
The current setting kmorMilesappears.
XPress the abutton to save the setting.
The selected unit of measurement for distance
applies to:
RDigital speedometer in the Tripmenu
ROdometer and the trip odometer
RTrip computer
RCurrent consumption and the range
RRange
RNavigation instructions in the Navimenu
RCruise control
RDistance Pilot DISTRONIC with Steering Pilot
RASSYST PLUS service interval display
Switching the additional speedometer
on/off
If the additional speedometer is switched on,
the speed is shown in the status bar in the mul-
tifunction display instead of the outside tem-
perature.
The speed display is inverse to the speedome-
ter.
XPress theòbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XUse : or9 to select the InstrumentClustersubmenu.
XPressato confirm.
XUsing :or9, select the AdditionalSpeedometer [km/h]function.
The current selection appears.
XTo activate/deactivate: press theabut-
ton again.
Restoring the factory settings
XPress the òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XUse : or9 to select the FactorySettingssubmenu.
Menus and submenus211
On-board computer and displays
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Message memory
The on-board computer saves certain display messages in themessage memory. You can call up
the display messages:
XPress the òbutton on the steering wheel to open the menu list.
XPress :or9 on the steering wheel to select the Servicemenu.
XConfirm by pressingaon the steering wheel.
XPress the :or9 button to select the message memory.
If there are no display messages, the No Messagesdisplay appears in the multifunction display.
When there are display messages, the number of stored messages appears.
XPress ato confirm.
XPress the :or9 button to scroll through the display messages.
216Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
6
RearLef tMalfunc‐tio nServic eRequiredorRea rRight MalfunctionServic eRequired
The rear left-han dor right-hand restrain tsystem is malfunctioning .
The 6 warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop immediately.
6
Lef tSid eCurtai nAirbag MalfunctionServiceRequiredor
Right Sid eCurtai n
Airbag MalfunctionServiceRequired
The left-han dor right-hand window curtai nair bag is malfunctioning .
The 6 warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The lef tor right window curtai nair bag may either be triggered unin-
tentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop immediately.
Display messages22 5
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
Driver's DoorOpe n&Transmission Notin PRis kof Vehi‐cle Rollin gAwa y
The driver's door is open or no tfully closed and th etransmission is in
position k,iorh.
A warning tone also sounds.
GWARNIN G
The vehicl emay rol laway.
There is aris kof an accident.
XShift th etransmission to position j.
XSecureth evehicl eagainst rollin gaway (Ypage 147).
XCloseth edriver's door completely.
Onl yShift to 'P'whe nVehicl eisSta‐tionar y
The vehicl eis moving .
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XShift th etransmission to position j.
ServiceRequiredDoNot Shift GearsVisit Dealer
You canno tchang eth etransmission position due to amalfunction .
A warning tone also sounds.
If transmission position his selected:
XDrive to aqualified specialist workshop without shifting th etrans -
mission from position h.
If transmission position k,iorj is selected:
XSecur eth evehicl eagainst rollin gaway (Ypage 147).
XNotify aqualified specialist workshop or breakdown service.
ReversingNotPossi‐bleServic eRequiredYou canno tshift int otransmission position kdue to amalfunction .
The transmission position sj, iorh continu eto be available.
A warning tone also sounds.
XVisit aqualified specialist workshop .
Transmission Mal‐function StopAmalfunction has occurred in th emechanical transmission compo -
nents.
A warning tone also sounds. The transmission automatically shift sto
position i.
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XShift th etransmission to position j.
XSecureth evehicl eagainst rollin gaway (Ypage 147).
XNotify aqualified specialist workshop or breakdown service.
Display messages24 1
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
Phone No ServiceYour vehicleis outside th enetwork provider' stransmitter/receiver
range.
XWait until th emobile phone operational readiness symbol appear s
in th emultifunction display.
¥
Check Washer Fluid
The washer flui dlevel in th ewasher flui dreservoir has dropped belo w
th eminimum .
XAddwasher flui d (Ypage 290).
SmartKey
Display messagesPossible causes/consequences and MSolutions
Â
KeyDoesNotBelongto Vehicl e
You haveput th ewrong SmartKey in th eignition lock.
XUse th ecorrec tSmartKey.
Â
Tak eYou rKey fro mIgnition
The SmartKey is in th eignition lock.
A warning tone sounds
XRemove th eSmartKey.
Â
Obtain aNew Key
The SmartKey needs to be replaced.
XVisit aqualified specialist workshop .
Â
ReplaceKey Batter y
The SmartKey battery is discharged.
XChange thebatterie s (Ypage 78) .
Â
Don't Forget You rKey
The SmartKey is notin th eignition lock. You hav eopened th edriver's
door wit hth eengin eswitched off . Awarning tone sounds
This display message is displayed for amaximum of 60 seconds and is
simply areminder.
XTak eth eSmartKey wit hyou when you leav eth evehicle.
Â
Key Not Detected(whit edisplay message )
The SmartKey is currentl yundetected.
XChange th elocation of th eSmartKey in th evehicle.
If th eSmartKey still canno tbe detected:
XInser tth eSmartKey int oth eignition loc kand tur nit to th edesire d
position .
Display messages243
On-board computer and displays
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The sockets can be used for accessories with a
maximum draw of 180 W (15 A). Accessories
include such items as chargers for mobile
phones.
If you use the sockets for long periods when the
engine is switched off, the battery may dis-
charge.
An emergency cut-out ensures that the on-
board voltage does not drop too low. If the on-
board voltage is too low, the power to the sock-
ets is automatically cut. This ensures that there
is sufficient power to start the engine.
If you have connected a device to the 12 V
socket, leave the cover of the stowage com-
partment open. This prevents the cover from
being blocked.
Socket in the front center console
12 V socket (example)
XTo open:open the stowage compartment
(Ypage 267).
XLift up the cover of socket ;.
XTo close:push cover :of the stowage com-
partment closed.
Socket in the rear compartment center
console
XPull cover ;out by its top edge.
XLift up the cover of socket :.
mbrace
General notes
The mbrace system is only available in the USA.
You must have a license agreement to activate
the mbrace service. Make sure that your system
is activated and operational. To register, press
the ï Info call button. If any of the steps
mentioned are not carried out, the system may
not be activated.
If you have questions about the activation, con-
tact one of the following telephone hotlines:
Mercedes-Benz Customer Assistance Center at 1-800-FOR-MERCedes (1-800-367-6372) or
1-866-990-9007
Shortly after successfully registering with the
mbrace service, a user ID and password will be
sent to you by mail. You can use this password
to log onto the mbrace area under "Owners
Online" at http://www.mbusa.com.
The system is available if:
Rit has been activated and is operational
Rthe corresponding mobile phone network is
available for transmitting data to the Cus-
tomer Center
Ra service subscription is available
Determining the location of the vehicle on a map
is only possible if:
RGPS reception is available
Rthe vehicle position can be forwarded to the
Customer Assistance Center
The mbrace system
To adjust the volume during a call, proceed as
follows:
XPress the WorX button on the multi-
function steering wheel.
or
XUse the multimedia system volume control.
The system offers various services, e.g.:
RAutomatic and manual emergency call
RRoadside Assistance call
RInfo call
Features275
Stowage and features
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You can find information and a description of all
available features under "Owners Online" at
http://www.mbusa.com.
System self-test
After you have switched on the ignition, the sys-
tem carries out a self-diagnosis.
A malfunction in the system has been detected
if one of the following occurs:
RThe indicator lamp in the SOS button does notcome on during the system self-test.
RThe indicator lamp in the FRoadside
Assistance button does not light up during
self-diagnosis of the system.
RThe indicator lamp in the ïInfo call button
does not light up during the system self-diag-
nosis
RThe indicator lamp in one or more of the fol-
lowing buttons continues to light up red after
the system self-diagnosis:
-SOS button
-F Roadside Assistance call button
-Info call button ï
RAfter the system self-diagnosis, the Inoper‐ativeorServiceNotActivatedmessage
appears in the multifunction display.
If a malfunction is indicated as outlined above,
the system may not operate as expected. In the
event of an emergency, help will have to be
summoned by other means.
Have the system checked at the nearest
Mercedes-Benz Service Center or contact the
following service hotlines:
Mercedes-Benz Customer Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372) or
1-866-990-9007
Emergency call
Important safety notes
GWARNING
It can be dangerous to remain in the vehicle,
even if you have pressed the SOS button in an emergency if:
Ryou see smoke inside or outside of the vehi-
cle, e.g. if there is a fire after an accident
Rthe vehicle is on a dangerous section of
road
Rthe vehicle is not visible or cannot easily beseen by other road users, particularly when
dark or in poor visibility conditions
There is a risk of an accident and injury.
Leave the vehicle immediately in this or simi-
lar situations as soon as it is safe to do so.
Move to a safe location along with other vehi-
cle occupants. In such situations, secure the
vehicle in accordance with national regula-
tions, e. g. with a warning triangle.
General notes
Observe the notes on system activation
(Ypage 275).
An emergency call is dialed automatically if an
air bag or Emergency Tensioning Device is trig-
gered. You cannot end an automatically trig-
gered emergency call yourself.
An emergency call can also be initiated man-
ually.
As soon as the emergency call has been initi-
ated, the indicator lamp in the SOS button
flashes. The Connecting Call
message
appears in the multifunction display.
The audio output is muted.
Once the connection has been made, the Call
Connectedmessage appears in the multifunc-
tion display.
All important information on the emergency is
transmitted, for example:
RCurrent location of the vehicle (as determined
by the GPS system)
RVehicle identification number
RInformation on the severity of the accident
Shortly after the emergency call has been initi-
ated, a voice connection is automatically estab-
276Features
Stowage and features

lished between the Customer Assistance Center
and the vehicle occupants.
RIf the vehicle occupants respond, the
Mercedes-Benz Customer Assistance Center
attempts to get more information on the
emergency.
Rif there is no response from the vehicle occu-
pants, an ambulance is immediately sent to
the vehicle.
If no voice connection can be established to the
Mercedes-Benz Customer Assistance Center,
the system has been unable to initiate an emer-
gency call.
This can occur, for example, if the relevant
mobile phone network is not available. The indi-
cator lamp in the SOS button flashes continu-
ously.
The Call Failed
message appears in the mul-
tifunction display and must be confirmed.
In this case, summon assistance by other
means.
Making an emergency call
XTo initiate an emergency call manually:
press cover :briefly to open.
XPress and hold the SOS button for at least one
second ;.
The indicator lamp in SOS button ;flashes
until the emergency call is concluded.
XWait for a voice connection to the Mercedes-
Benz Customer Assistance Center.
XAfter the emergency call, close cover :.
If the mobile phone network is unavailable,
mbrace will not be able to make the emergency
call. If you leave the vehicle immediately after
pressing SOS button ;, you do not know if
mbrace has successfully made the emergency
call. In this case, always summon assistance by
other means.
Roadside Assistance button
XTo call: press Roadside Assistance but-
ton :.
This initiates a call to the Mercedes-Benz Cus-
tomer Assistance Center.
The indicator lamp in Roadside Assistance
button :flashes while the call is active. The
Connecting Call
message appears in the
multifunction display. The audio output is
muted.
If a connection can be made, the Call
Connec‐tedmessage appears in the multifunction dis-
play.
If a mobile phone network and GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
RCurrent location of the vehicle
RVehicle identification number
The multimedia system display indicates that a
call is active. During the call, you can change to
the navigation menu by pressing the NAVI but-
ton on the multimedia system, for example.
Voice output is not available in this case.
A voice connection is established between the
Mercedes-Benz Customer Assistance Center
and the vehicle occupants.
From the remote malfunction diagnosis, the
Mercedes-Benz Customer Assistance Center
can ascertain the nature of the problem
(
Ypage 280).
The Mercedes-Benz Customer Assistance Cen-
ter either sends a qualified Mercedes-Benz tech-
nician or makes arrangements for your vehicle
to be transported to the nearest Mercedes-Benz
Service Center.
You may be charged for services such as repair
work and/or towing.
Features277
Stowage and features
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