2018 MERCEDES-BENZ C-CLASS SEDAN engine

XPress:or9 to select the AdBluesubmenu.
XPressato confirm your selection.
The range and DEF level appear in a bar graph
in the multifunction display.
Observe the information and notes on "Refuel-
ing" (
Ypage 158).
Settings menu
Introduction
Depending on the equipment installed in the
vehicle, you have the following options in the
Settings
menu:
RChanging assistance settings (Ypage 222).
RChanging head-up display settings
(Ypage 224).
RChanging the light settings (Ypage 225).
RChanging the instrument cluster settings
(Ypage 225).
RRestoring the factory settings (Ypage 226).
Assistance submenu
Deactivating/activating ESP®
Observe the "Important safety notes" section in
the description of ESP®(Ypage 69).
GWARNING
If you deactivate ESP
®, ESP®no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
It may be best to deactivate ESP
®in the follow-
ing situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
Deactivating/activating ESP®in Mercedes-
AMG vehicles (Ypage 71).
For further information about ESP®, see
(Ypage 69).
XStart the engine.
XPress the òbutton on 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 DriveAs‐sistsubmenu.
XPressato confirm.
XSelect ESPby pressing :or9.
XPress ato confirm.
The current selection appears.
XTo activate/deactivate: press theabut-
ton 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 mal-
function.
Observe the information on warning lamps
(
Ypage 261).
Observe the information on display messages
(
Ypage 231).
Traffic Sign Assist
You can activate or deactivate the warning func-
tion of Traffic Sign Assist in the TrafficSignAssistmenu. When the function is activated,
detected traffic signs and information appear in
the multifunction display for five seconds.
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.
XPress :or9 to select the DriveAs‐sistsubmenu.
XPressato confirm.
XPress :or9 to select TrafficSignAssist.
XPressato confirm.
The current selection appears.
XActivate or deactivate the warning func-
tion: press aagain.
For further information about Traffic Sign Assist,
see (
Ypage 200).
222Menus and submenus
On-board computer and displays

Restoring the factory settings
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 FactorySettingssubmenu.
XPressato confirm.
The Reset All Settings?function
appears.
XPress :or9 to select NoorYes.
XPress ato confirm the selection.
If you have selected Yes, the multifunction
display shows a confirmation message.
For safety reasons, the Daytime Running
Lightsfunction in theLightssubmenu is only
reset when the vehicle is stationary.
AMG menu (Mercedes-AMG vehicles)
Warm-up
:Digital speedometer
;Gear indicator
=Charge-air pressure
?Engine oil temperature
ATransmission oil temperature
XPress the òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the AMGmenu.
XConfirm by pressing aon the steering
wheel.
Engine and transmission oil tempera-
tures: when the engine and transmission are
at normal operating temperature, oil temper- atures
?and Aare displayed in white in the
multifunction display.
If the multifunction display shows oil temper-
ature ?orA in blue, the engine or the
transmission are not yet at normal operating
temperature. Avoid driving at full engine out-
put during this time.
Traffic Sign Assist display
XSwitch on the display function for notes and
traffic signs (Ypage 222).
XPress the òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the AMGmenu.
XConfirm by pressing aon the steering
wheel.
XPress the 9button repeatedly until the
Traffic Sign Assist display appears.
G-Meter
While the vehicle is in motion, the G-Meter
shows the forces that are exerted on the driver
both laterally and in the direction of travel.
The maximum values are indicated in red in the
guideline system.
226Menus and submenus
On-board computer and displays

RACE TIMER
Displaying and starting RACETIMER
:Lap
;RACETIMER
The RACETIMER is only intended for use on a
closed race circuit. Do not use the function on
public roads.
You can start the RACETIMER when the engine is
running or the ignition is switched on.
XUse ò on the steering wheel to call up the
list of menus.
XPress the :or9 button on the steering
wheel to select the AMGmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 repeatedly until the
RACETIMER appears.
XTo start: press the abutton to start the
RACETIMER.
Starting a new lap
:Lap
;RACETIMER
=Quickest lap time
XPress the :or9 button to select NewLap.
XPressato confirm.
A maximum of 32 laps may be stored.
Stopping the RACETIMER
XPress :or9 to select Stop.
XPressato confirm.
Continuing the RACETIMER
XPress :or9 to select Continue.
XPressato confirm.
Resetting the RACETIMER
228Menus and submenus
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dor released. It then
goe sout or remain slit .
The electric parking brak eis malfunctioning .
XSwitchoff th eignition and tur nit bac kon .
XApply th eelectric parking brake.
If it is no tpossibl eto engage th eelectric parking brake:
XShift th etransmission to position j.
XVisitaqualified specialist workshop .
If it is no tpossibl eto release th eelectric parking brak emanually:
XReleas eth eelectric parking brak eautomatically (Ypage 163).
If th eelectric parking brak estill canno tbe released:
XConsult aqualified specialist workshop .
The yellow!warning lamp lights up. If you manually apply or
release th eelectric parking brake, th ered F (USAonly) or !
(Canada only) indicator lamp flashes .
The electric parking brak eis malfunctioning .It is no tpossibl eto apply
th eelectric parking brak emanually.
XShift th etransmission to position j,as th eelectric parking brak e
is no tapplie dautomatically.
XVisit aqualified specialist workshop .
If it is no tpossibl eto release th eelectric parking brak emanually:
XReleas eth eelectric parking brak eautomatically (Ypage 163).
F(USA
only)
!(Canada
only)
Parkin gBrake Inop‐
erativ e
The yellow !warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dor released. It then
goe sout or remain slit .
The electric parking brak eis malfunctioning ,e.g. because of over-
voltag eor undervoltage.
XRemove th ecaus efor th eovervoltage or undervoltage, e.g. by
charging th ebattery or restarting th eengine.
XEngage or release th eelectric parking brake.
If it remain simpossible to apply or release th eelectric parking brake:
XSwitc hoff th eignition and tur nit bac kon .
XEngage or release th eelectric parking brake.
If th eelectric parking brak estill canno tbe released:
XConsult aqualified specialist workshop .
If th eelectric parking brak estill canno tbe applied:
XVisit aqualified specialist workshop .
Display messages235
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up and th ered F (USAonly)
or ! (Canada only) indicator lamp flashes .
It is no tpossibl eto apply th eelectric parking brak emanually.
XShift th etransmission to position j.
XVisitaqualified specialist workshop .
$(USAonly)
J(Canada only)
Check Brake Fluid
Level
There is no tenough brak efluid in th ebrak efluid reservoir .
In addition ,th e$ (USAonly) or J(Canada only) warning lamp
lights up in th einstrumen tcluste rand awarning tone sounds.
GWARNIN G
The braking effec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinu edrivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 161).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrec tth emalfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
US Aonly: th e$ red brak esystem warning lamp is lit while th e
engin eis running.
XVisit aqualified specialist workshop .
G
Inoperative
Oneor mor emain features of th embrace system are malfunctioning .
XVisitaqualified specialist workshop .
ActiveBrakeAssistFunctionsCurrentlyLimitedSee Opera‐tor's Manual
Active Brake Assis tis temporarily inoperative.
Possibl ecauses are:
RThe radar sensor system is temporarily inoperative, e.g. due to
electromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation .
RThe system is outside th eoperating temperature range.
RThe on-boar dvoltag eis to olow.
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Active Brake Assis tis operational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 161).
XRestart th eengine.
236Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
ActiveBrakeAssistFunctions LimitedSee Operator'sMan ‐ual
Active Brake Assis tis unavailable due to amalfunction .Adaptive
Brake Assis tmay also hav efailed.
XVisit aqualified specialist workshop immediately.
PRE-SAFE Inopera‐tiv eSeeOperator' sManual
Importantfunction sof PRE-SAF E®havefailed. Al lother occupant
safet ysystems ,e.g. air bags ,remain available.
XVisit aqualified specialist workshop immediately.
ActiveBrakeAssistFunctionsCurrentlyLimite dSee Opera‐tor's Manual
Active Brake Assis twit hcross-traffic function is temporarily inopera-
tive.
Possibl ecauses are:
RFunction is impaire ddue to heav yrain or snow.
RThe radar sensor system is temporarily inoperative, e.g. due to
electromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation .
RMercedes-AMG vehicles: ES P®is deactivated
RThe system is outside theoperating temperature range.
RThe on-boar dvoltag eis to olow.
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Active Brake Assis twit hcross-traffic function is operational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 161).
XRestart th eengine.
XMercedes-AMG vehicles: switch ES P®on again(Ypage 71).
ActiveBrakeAssistFunctions Limite dSee Operator'sMan ‐ual
Active Brake Assis twit hcross-traffic function is unavailable due to a
malfunction .
XVisitaqualified specialist workshop immediately.
Display messages23 7
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
RadarSensorsDirtySee Operator' sMan ‐ual
The radar sensor system is malfunctioning .
Possibl ecauses are:
RDirt on sensor s
RHeavy rain or snow
RWhendrivin gon inter-urban roads without traffic or infrastructure,
e.g. in desert-like area s
At least on edrivin gsystem or drivin gsafet ysystem is malfunctioning
or is temporarily unavailable :
RActive Brake Assistwit hcross-traffic function
RActive Brake Assis t
RActive LaneKeepin gAssis t
RActive Blind Spot Assis t
RDistancePilo tDISTRONI Cwit hSteering Pilo t
If th eradar sensor system in fron tis dirty, Active Blind Spot Assis twill
no tperfor m acourse-correcting brak eapplication .
Once th ecaus eof th eproblem is no longer present, th edrivin gand
drive safet ysystems will be available again .The display message dis-
appears.
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 161).
XSwitchoff th eengine.
XClean all sensor s (Ypage 312).
XRestart theengine.
The display message disappears.
6
SRSMalfunctionSer ‐viceRequired
The 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.
Fo rfurther information about th erestrain tsystem, see (
Ypage 44).
6
Front Lef tMalfunc‐tio nServic eRequiredorFrontRight MalfunctionServic eRequired
The restrain tsystem is malfunctioning at th efron ton th elef tor right .
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.
238Display messages
On-board computer and displays

Engine
Display messagesPossible causes/consequences andMSolutions
+
CheckCoolantLevelSee Operator's Man‐ual
The coolant level is too low.
!Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
XAdd coolant, observing the warning notes before doing so
(Ypage 306).
If you have to add coolant frequently:
XContact a qualified specialist workshop and have the engine cooling
system checked.
?The fan motor is malfunctioning.
XIf the coolant temperature is below the red marking in the coolant
temperature gauge, drive to the nearest qualified specialist work-
shop.
XAvoid heavy loads on the engine as you do so, e.g. driving in moun-
tainous terrain and stop-and-go traffic.
?
Coolant Too HotStop Vehicle TurnEngine Off
The coolant is too hot.
A warning tone also sounds.
GWARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to catch
fire.
Steam from the overheated engine can also cause serious burns which
can occur just by opening the hood.
There is a risk of injury.
XPull over and stop the vehicle safely and switch off the engine, pay- ing attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 161).
XWait until the engine has cooled down.
XMake sure that the air supply to the engine radiator is not blocked,
e.g. by snow, slush or ice.
XDo not start the engine again until the display message goes out and
the coolant temperature gauge is below the red marking. Other-
wise, the engine could be damaged.
XPay attention to the coolant temperature gauge.
If the temperature increases again:
XVisit a qualified specialist workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature gauge may rise to the red marking.
Display messages243
On-board computer and displays
Z