MERCEDES-BENZ GLC COUPE 2018 Owner's Manual

Display messagesPossible causes/consequences andMSolutions
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CoolantToo HotSto pVehicl eTur nEngine Off
The coolan tis to ohot .
A warning tone also sounds.
GWARNIN G
Do no tdrive when your engin eis overheated. This can caus esom e
fluids whic hmay hav eleaked int oth eengin ecompartmen tto catch
fire.
Steam from th eoverheate dengin ecan also caus eserious burn swhic h
can occur jus tby opening th ehood.
There is aris kof injury.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 151).
XWait until th eengin ehas cooled down .
XMakesur ethat th eair supply to th eengin eradiato ris no tblocked,
e.g. by snow, slus hor ice .
XDo no tstart th eengin eagain until th edisplay message goe sout and
th ecoolan ttemperature gage is belo wthered marking .Otherwise ,
th eengin ecould be damaged.
XPay attention to th ecoolan ttemperature gage .
If th etemperatur eincreases again:
XVisit aqualified specialist workshop immediately.
Under normal operating condition sand wit hth especified coolan t
level, th ecoolan ttemperature display may ris eto th ered marking .
#
See Operator' sMan ‐ual
The battery is no tbein gcharged.
A warning tone also sounds.
Possibl ecauses are:
Radefective alternato r
Ratorn poly-V-belt
Ramalfunction in th eelectronics
!Do no tcontinu edriving. The engin ecould otherwise overheat.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 151).
XConsult aqualified specialist workshop .
Display messages239
On-board computer and displays
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Display messagesPossible causes/consequences andMSolutions
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StopVehicl eSeeOperator' sManual
The battery is no longer bein gcharged and th econdition of charg eis
to olow.
A warning tone also sounds.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 151).
XObserv eth einstruction sin th e# See Operator' sManualdisplay message .
XConsultaqualified specialist workshop .
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StopVehicl eLeaveEngine Runnin g
The battery condition of charg eis to olow.
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.
XLeav eth eengin erunning.
XWait until th edisplay message disappear sbefore pullin gaway.
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Start Engine SeeOperator' sManual
The engin eis switched off and th econdition of charg eis to olow.
XSwitc hoff electrical consumer sthat you do no tneed, suc has th e
rear window defroste rand interior lighting .
XLeaveth eengin erunnin gfor afew minute sor drive alon gdistance.
The battery is bein gcharged.
4
CheckEngineOilAtNex tRefueling
The engin eoil level has dropped to th eminimum level.
A warning tone also sounds.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
XChec kth eoil level when next refueling, at th elatest (Ypage 305).
XIf necessary, add engin eoil (Ypage 305).
If you have to ad dengin eoil frequently:
XContac t aqualified specialist workshop and hav eth eengin e
checked.
Information on approve dengin eoils can be obtained from aqualified
specialist workshop or on th eInternet at http://bevo.mercedes -
benz.co m.
240Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
4
Check Engine OilLevel(Add1quart)(USA) Check EngineOil Level (Ad d 1Liter)(Canada)
Mercedes-AMG GLC 63 vehicles:
The engineoil level has dropped to th eminimum level.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
XChec kth eoil level when next refueling, at th elatest (Ypage 305).
XIf necessary, add engin eoil (Ypage 305).
If you have to ad dengin eoil frequently:
XContac t aqualified specialist workshop and hav eth eengin e
checked.
Information on approve dengin eoils can be obtained from aqualified
specialist workshop or on th eInternet at http://bevo.mercedes -
benz.co m.
4
Engine Oil LevelLow Stop VehicleTurn Engine Off
Mercedes-AMG GLC 63 vehicles:
The engine oil level is too low. There is a risk of engine damage.
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 151).
XCheck the engine oil level (Ypage 305).
XIf necessary, add engine oil (Ypage 305).
8
Fuel Level Low
The fuel level has dropped into the reserve range.
XRefuel at the nearest gas station.
CThere is only a very small amount of fuel in the fuel tank.
XRefuel at the nearest gas station without fail.
8
Gas Cap Loose
The fuel filler cap is not closed correctly or the fuel system is leaking.
XCheck that the fuel filler cap is correctly closed.
If the fuel filler cap is not correctly closed:
XClose the fuel filler cap.
If the fuel filler cap is correctly closed:
XVisit a qualified specialist workshop.
Display messages241
On-board computer and displays
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Drivingsystems
Display messagesPossible causes/consequences an dMSolutions
À
ATTENTION ASSIST :Take a Break!
Based on certain criteria, ATTENTION ASSIST has detecte dfatigue or
a lac kof concentration on th epar tof th edriver . Awarnin gtone also
sounds.
XIf necessary, take abreak .
Durin glon gjourneys, take regular break sin goo dtime so you get
enough rest.
À
ATTENTION ASSISTInoperative
ATTENTION ASSIST is inoperative .
XVisitaqualified specialis tworkshop .
Á
VehicleRising
The vehicle is risin gto th elevel you hav eselected.
Á
Vehicl eRisingPlease Wai t
The vehicle level is to olow when th evehicle is stationary. Awarnin g
tone also sounds.
XDo no tpull away.
The vehicle level is set when th edisplay messag edisappears .
Á
StopVehicl eVehi‐cle Too Low
You hav epulle daway whil eth evehicle level is still to olow.
AI RBODY CONTROL set sth evehicle to th eselecte dlevel after ashort
period.
Mercedes-AMG vehicles :th eAM Gsport ssuspensio nbase don AI R
BODY CONTROL set sth evehicle to th eselecte dlevel after ashort
period.
XPull over and stop th evehicle safely as soo nas possible, payin g
attention to road and traffic conditions.
XSecur eth evehicle against rollin gaway (Ypage 151).
XWait until th edisplay messag edisappears befor epulling away.
AI R BODY CONTROL is faulty. Awarnin gtone also sounds.
Mercedes-AMG vehicles :th eAM Gsport ssuspensio nbase don AI R
BODY CONTROL is malfunctioning. Awarnin gtone also sounds.
XDo no tdrive at speeds abov e50 mph (80 km/h).
XMak eonly slight steerin gmovements .Otherwise ,th efron tfender
or th etires could be damaged if th esteerin gmovemen tis to olarge.
XListe nfo rscrapin gsounds.
XPull over and stop th evehicle safely, payin gattention to road and
traffic conditions, and set ahigher vehicle level.
Dependin gon th emalfunction ,it may be possible to rais eth evehi-
cle.
XVisit aqualified specialis tworkshop .
242Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Á
Drive MoreSlowly
You canno tchang eth evehicl elevel. Possibl ecauses are:
RYou are drivin gto ofas tfor th eselected vehicl elevel
RYou are drivin gto ofas twit h a trailer or th etrailer-coupling socke tis
bein gused ,e.g. for abicycle rac k
XDrive moreslowly and then select th edesire dvehicl elevel again
(Ypage 171).
XObserv eth enote son towin g atrailer (Ypage 201).
Á
Compresso rIs Cool‐ing
You hav eselected ahigher vehicl elevel. The compressor first needs
to cool down because of frequen tlevel changes.
XDrive in amanne rappropriat efor th ecurren tvehicl elevel.
XMak esur ethat there is sufficien tground clearance .
XAllow thecompressor to cool down .
Whe nth ecompressor has cooled down ,th edisplay message dis-
appears. The vehicl ethen continues rising to th eselected level.
à
Malfunction
AI R BODY CONTROL is malfunctioning .The vehicle's handlin gchar-
acteristics may be affected.
Mercedes-AMG vehicles: th eAM Gsport ssuspension base don AI R
BODY CONTROL is malfunctioning .The vehicle's handlin gcharacter-
istics may be affected.
XDrive as appropriat efor th ecurren tvehicl elevel, but do no texceed
50 mph (80 km/h).
XMak esur ethat there is sufficien tground clearance .
XVisitaqualified specialist workshop .
LaneKeepin gAssistCurrently Unavaila‐ble See Operator' sManualorActiveLan eKeepin gAssistCurrently Unavaila‐ble See Operator' sManual
LaneKeepin gAssis tor Active Lan eKeepin gAssis tis deactivated and
temporarily inoperative.
Possibl ecauses are:
Rth ewindshield in th ecamera' sfield of vision is dirty
Rvisibilit yis impaire ddue to heav yrain ,snow or fog
Rthere hav ebeen no lan emarking sfor an extended period
Rth elan emarking sare wor naway, dark or covered up, e.g. by dir tor
snow
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Lan eKeepin gAssis tor Active Lan eKeepin gAssis 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 151).
XClean th ewindshield.
Display messages24 3
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
LaneKeepin gAssistInoperativeor
ActiveLan eKeepin gAssist Inoperative
LaneKeepin gAssis tor Active Lan eKeepin gAssis tis malfunctioning .
XVisitaqualified specialist workshop .
Blind SpotAssistCurrently Unavaila‐ble See Operator' sManualorActiveBlind Spo tAssistCurrently Unavaila‐ble See Operator' sManual
Blind Spot Assistor Active Blind Spot Assis tis temporarily inoperative.
Possibl ecauses are:
Rth eradar sensor system is outside th eoperating temperature range
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Blind Spot Assis tor Active Blind Spot 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 151).
XRestart th eengine.
Blind Spo tAssistInoperativeor
Active Blind Spo t
Assist Inoperative
Blind Spot Assistor Active Blind Spot Assis tis malfunctioning .
XVisitaqualified specialist workshop .
ParkingPilot Can ‐celedThe driver's door is open .
XRepeat theparking gap measuremen tand parking process wit hth e
driver's door closed .
You touched themultifunction steering whee lwhile steering inter-
vention was active .
XWhilesteering intervention is active ,mak esur ethat th emultifunc-
tion steering whee lis no ttouched unintentionally.
The vehicl ehas started to skid and ES P®has intervened.
XUse Parking Pilotagain later (Ypage 174).
ParkingPilot Inop‐erativ eParking Pilo tis malfunctioning or defective.
XFollow th einstruction sand helpful hints in th e"Problem swit h
Parking Assis tPARKTRONIC" section (Ypage 180).
If th emultifunction display still shows th edisplay message :
XVisitaqualified specialist workshop .
244Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Parking Pilotis unavailable or malfunctioning .
XSwitchoff th eignition and restar tth eengine.
If Parking Pilo tcontinues to be unavailable (the jsymbol does no t
appear in th emultifunction display):
XVisit aqualified specialist workshop .
ParkingPilot Fin ‐ishedThe vehicleis parked. Awarning tone also sounds.
The display message disappear sautomatically.
Traffi cSignAssistCurrently Unavaila‐ble See Operator' sManual
Traffic SignAssis tis temporarily inoperative.
Possibl ecauses are:
Rth ewindshield in th ecamera' sfield of vision is dirty
Rvisibilit yis impaire ddue to heav yrain ,snow or fog
XClean th ewindshield.
If th esystem detects that th ecamera is full yoperational, th edisplay
message disappears.
Traffic Sig nAssis tis operational again .
TrafficSignAssistInoperativeTraffic Sig nAssis tis malfunctioning .
XVisitaqualified specialist workshop .
ë
Off
The HOLD function is deactivated. The vehicl eis skidding.
A warning tone also sounds.
XReactivat eth eHOLD function later (Ypage 169).
The HOLD function is deactivated. Whe nth ebrak epedal is firmly
depressed, an activation condition is no tfulfilled .
A warning tone also sounds.
XChec kth eactivation condition sfor th eHOLD function
(Ypage 169).
Distance Pilot OffDistanc ePilo tDISTRONI Cis deactivated (Ypage 166).
If it was no tdeactivated by th edriver , awarning tone also sounds.
Distance Pilot NowAvailableDistanc ePilo tDISTRONI Cis operational again after having been tem-
porarily unavailable .You can no wreactivat eDistanc ePilo t
DISTRONI C (
Ypage 162).
Display messages245
On-board computer and displays
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Display messagesPossible causes/consequences andMSolutions
Distance Pilot Cur‐rently UnavailableSee Operator'sMan ‐ual
Distanc ePilo tDISTRONI Cis temporarily inoperative.
Steering Pilo tis also temporarily inoperative.
Possibl ecauses are:
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation
Rth esystem is outside th eoperating temperature range
Rth eon-boar dvoltag eis to olow
A warning tone also sounds.
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Distanc ePilo tDISTRONI Cis 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 151).
XRestart th eengine.
DistancePilotInop‐erativ eDistanc ePilo tDISTRONI Cis malfunctioning .
The followin gmay hav ealso failed:
RActive Brake Assis twit hcross-traffic function
A warning tone also sounds.
XVisit aqualified specialist workshop .
Distance Pilot Sus‐pendedYou havedepressed th eaccelerato rpedal .Distanc ePilo tDISTRONI C
is no longer controllin gth espeed of th evehicle.
XRemove your foo tfrom th eaccelerato rpedal .
Distance Pilot- - - mphAcondition for activating Distanc ePilo tDISTRONI Chas no tbeen met .
XCheckth eactivation condition sfor Distanc ePilo tDISTRONI C
(Ypage 162).
246Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Steering Pilot Cur‐rently UnavailableSee Operator'sMan ‐ual
Steering Pilo tis temporarily inoperative.
Possibl ecauses are:
Rth ewindshield in th ecamera' sfield of vision is dirty
Rvisibilit yis impaire ddue to heav yrain ,snow or fog
Rthere hav ebeen no lan emarking sfor an extended period
Rth elan emarking sare wor naway, dark or covered up, e.g. by dir tor
snow
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Steering Pilo 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 151).
XClean th ewindshield.
SteeringPilotInop‐erativ eSteering Pilo tis malfunctioning .
However, th eDistanc ePilo tDISTRONI Cfunction sare still available.
A warning tone also sounds.
XVisit aqualified specialist workshop .
CruiseControlInop‐erativeCruisecontrol is malfunctioning .
A warning tone also sounds.
XVisit aqualified specialist workshop .
Cruise Control- - -mph
RAcondition for activating cruise control has no tbeen met .
You hav etried to store aspeed belo w20 mph (30 km/h), for exam-
ple.
RES P®is deactivated. The yello wES P®OF Fwarning lamp is lit .
XIf conditionspermit ,drive faste rthan 20 mph (30 km/h )and store
th espeed.
or
XChec kth eactivation condition sfor cruise control (Ypage 159).
or
XReactivat eES P®(Ypage 69) .
or
XReactivat eES P®in Mercedes-AMG vehicles (Ypage 70).
Cruise Contro lOffCruis econtrol has been deactivated.
If awarning tone also sounds, cruise control has deactivated auto -
matically (
Ypage 159).
Display messages247
On-board computer and displays
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Tires
Display messagesPossible causes/consequences andMSolutions
CheckTirePressureSoonCanada only:
The tire pressure loss warning system has detected a significant loss
in pressure.
A warning tone also sounds.
Possible causes:
Ryou have changed the positions of the wheels and tires or installed
new wheels and tires
Rthe tire pressure in one or more tires has dropped significantly
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase.
Rthey may wear excessively and/or unevenly, which may greatly
impair tire traction.
Rthe driving characteristics, as well as steering and braking, may be
greatly impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 151).
XCheck the tires and, if necessary, follow the instructions for a flat
tire (Ypage 318).
XCheck the tire pressures and, if necessary, correct the tire pressure.
XRestart the tire pressure loss warning system when the tire pres-
sure is correct (Ypage 340).
CheckTirePressureThen Restart RunFlat Indicator
Canada only:
The tire pressure loss warning system generated a display message
and has not been restarted since.
XSet the correct tire pressure in all four tires.
XRestart the tire pressure loss warning system (Ypage 340).
Run Flat IndicatorInoperativeCanada only:
The tire pressure loss warning system is faulty.
XVisit a qualified specialist workshop.
PleaseCorrectTirePressureThe tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 342).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 342).
248Displa y messages
On-board computer and displays