MERCEDES-BENZ SLC-Class 2017 R172 Owner's Manual

Display messagesPossible causes/consequences andMSolutions
lamp remainslit or goe sout depend sonhow OCS classifies th eoccu-
pant.
If th econditi onsa re no tfulfilled ,the system is no toperating correctly.
XVisit aqualified specialist workshop immediately.
Observ ethe additional information on OCS (
Ypage 45).
Lights
Display messagesPossible causes/consequences and MSolutions
b
CheckLeftLowBeam(Example)
The correspondin gbulb is faulty.
XVisit aqualified specialist workshop .
or
XChec kwhether you are permitte dtoreplace th ebulb yourself
(Ypage 97).
LE Dl igh tsources: th edisplay message for th ecorre spondin glamp
only appear swhen all th eLEDsint helamp hav efailed.
b
Active HeadlampsInoperative
The active ligh tfunction is faulty.
XVisit aqualified specialist workshop .
b
Malfunction SeeOperator'sManual
The exterio rlighting is malfunctioning .
XVisitaqualified specialist workshop .
b
AutoLampF unctionInoperative
The ligh tsensor is defective.
XVisit aqualified specialist workshop .
b
Switch Off Lights
The lights are still switched on when you leav ethe vehicle. Awarning
tone also sounds.
XTurn th eligh tswitch to position Ã.
Adaptive HighbeamAssist CurrentlyUnavailable SeeOperator'sManual
Adaptive Highbea mAssistisd eactivated and temporarily inoperative.
Possibl ecauses are:
Rthew indshield in th ecamera' sfield of vision is dirty
Rvisibilit yisimpaire ddue to heav yrain ,sno worf og
XClean th ewindshield.
If th esystem detects that th ecamera is full yoperational again ,the
Adaptive
HighbeamAssistNowAvailablemessage is displayed.
Adaptive Highbea mAssistiso perational again .
Adaptive HighbeamAssist InoperativeAdaptive Highbea mAssistisf aulty.
XVisit aqualified specialist workshop .
Display messages189
On-boardc omputer andd isplays
Z

Engine
Display messagesPossible causes/consequences andMSolutions
?
CheckCoolantLevelSee Operator'sMan‐ual
The coolant levelistoolow.
!Avoid making longj ourneys with to olittle coolant in th eengine
cooling system. The engine will otherwise be damaged.
XAdd coolant ,observing th ewarning note sbefore doings o
(Ypage 233).
XIf you nee dtoadd coolant mor eoften than usual, have th eengine
coolant system checked at aqualified specialist workshop.
?The fan motor is faulty.
XIf th ecoolant temperatur egauge is below the Hmarking
(Ypage 164), driv eontothenex tqualified specialist workshop.
XAvoid heavyl oads on theengine as you do so, e.g .driving in moun-
tainous terrain and stop-and-go traffic.
?
CoolantT oo HotStopVehicleT urnEngine Off
The coolant is to ohot.
Aw arning tone also sounds.
GWARNING
Do no tdrivew hen your engine is overheated. This can caus esome
fluids whichm ay have leaked int othe engine compartmen ttocatch
fire.
Steam from th eoverheate dengine can also caus eserious burn swhich
can occur jus tbyopening th ehood.
Thereisar isk of injury.
XPull overand stop th evehicle safely and switch off th eengine ,pay-
ing attention to road and traffic conditions.
XSecure th evehicle against rolling away (Ypage 131).
XLeavet hevehicle and keep asafe distanc efromt hevehicle until the
engine has cooled down.
XMakes ure that th eair supply to th eengine radiator is no tblocked,
e.g .bys now, slush or ice.
XDo no tstart th eengine again until th edisplay message goes out and
th ec oolant temperatur egauge is below the Hmarking
(
Ypage 164). Otherwise, th eengine coul dbedamaged.
XPay attention to th ecoolant temperatur egauge, observing the
warning note s(Ypage 233).
XIf thetem peratur eincreases again,v isitaq ualified specialist work-
shop immediately.
Under normal operatin gconditionsa nd at thecorrec tcoolant level,
th ec oolant temperatur egauge may rise to the Hmarking
(
Ypage 164).
190Displa ymessages
On-boardc omputer and displays

Display messagesPossible causes/consequences andMSolutions
#
See Operator'sMan‐ual
The battery is no tbein gcharged.
Aw arning tone also sounds.
Possibl ecauses are:
Rafault yalternato r
Ratornp oly-V-belt
Ram alfunction in th eelectronics
!Do no tcontinue driving. 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 ethe vehicl eagainst rollin gaway (Ypage 131).
XConsult aqualified specialist workshop .
#
StopVehicl eSeeOperator' sManual
The battery is no longer bein gcharged and th econditi on of charg eis
to ol ow.
Aw arning tone also sounds.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 131).
XObserv ethe instruction sinthedisplay message #See Oper‐ator's Manual.
XConsult aqualified specialist workshop .
4
CheckEngineOilAtNextRefueling
The engin eoil level has dropped to th eminimum level.
Aw arning tone also sounds.
!Avoid lon gjou rneys wit htoo littl eengineo il. The engin ewill oth-
erwise be damaged.
XChec kthe oil level when next refueling, at th elatest (Ypage 232).
XIf necessary, add engin eoil(Ypage 232).
XHav ethe engin echecked ataq ualified specialist workshop if you
need to add engin eoil mor eoften than usual.
Information on approve dengineo ils can be obtained from aqualified
specialist workshop or on th eInterne tath ttp:// bevo.mercedes -
benz.com.
4
Check Engine OilLevel (Ad d1quart)
Mercedes-Ben zSLC 43 AMG:
The engin eoil level is to olow.
!Avoid lon gjou rneys wit htoo littl eengineo il. The engin ewill oth-
erwise be damaged.
XChec kthe oil level when next refueling, at th elatest (Ypage 232).
XIf necessary, add engin eoil(Ypage 232).
XHav ethe engin echecked ataq ualified specialist workshop if you
need to add engin eoil mor eoften than usual.
Information on approve dengineo ils can be obtained from aqualified
specialist workshop or on th eInterne tath ttp:// bevo.mercedes -
benz.com.
Display messages19 1
On-boardc omputer andd isplays
Z

Display messagesPossible causes/consequences andMSolutions
4
Engine Oil LevelLow StopVehicl eTurnEngine Off
Mercedes-Ben zSLC 43 AMG:
The engin eoil level is to olow.
There is ariskofe ngined amage.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 131).
XChec kthe engin eoil level (Ypage 232).
XIf necessary, add engin eoil(Ypage 232).
8
Fue lLevel Low
The fuel level has dropped int othe reserv erange.
XRefue lattheneares tgas station .
CThere is only averys mall amount of fuel in th efuel tank.
XRefue lattheneares tgas station without fail .
8
Close Gas Cap
The fuel filler cap is no tclosed correctl yorthefuel system is leaking .
XCheckthatthe fuel filler cap is correctl yclosed .
If th efuelfiller cap is not correctl yclosed :
XClosethe fuel filler cap .
If th efuelfiller cap is correctl yclosed :
XVisitaqualified specialist workshop .
Driving systems
Display messagesPossible causes/consequences and MSolutions
À
Attention Assist:TakeaB reak!
Based on certain criteria, ATTENTION ASSIST has detecte dfatigue or
al ack of concentration on th epart of th edriver .Aw arning tone also
sounds.
XIf necessary, tak eabreak.
During lon gjou rneys, tak eregular breaks in goo dtimesoy ou get
enough rest.
À
Attention AssistInoperative
ATTENTION ASSIST is inoperative.
XVisit aqualified specialist workshop .
ë
Off
The HOLD function is deactivated. th evehicl eiss kidding.
Aw arning tone also sounds.
XReactivat ethe HOLD function later (Ypage 148).
192Display messages
On-boardcomputer andd isplays

Display messagesPossible causes/consequences andMSolutions
LaneKeepin gAssistCurrently Unavaila‐ble See Operator' sManual
LaneKeepin gAssistisd eactivated and temporarily inoperative.
Possibl ecauses are:
Rthew indshield in th ecamera' sfield of vision is dirty
Rvisibilit yisimpaire ddue to heav yrain ,sno worf og
Rthere hav ebeen no lan emarking sfor an extended period
Rthel an em arking sare worn, dark or covered, e.g. by dir torsnow
Whe nthe causes state dabov enol onger apply, th edisplay message
disappears.
Lan eKeepin gAssistiso perational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo naspossible, payin g
attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 131).
XClean th ewindshield.
Lan eKeepin gAssistInoperativeLaneKeepin gAssistisf aulty.
XVisit aqualified specialist workshop .
Blind SpotAssistCurrently Unavaila‐ble See Operator' sManual
Blind Spot Assististemporarily inoperative.
Possibl ecauses are:
Rfunction is impaire ddue to heav yrain or snow
Rther adar sensor system is outside th eoperating temperature range
Rther adar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sofelectromagneti cradiation
The yellow 9indicator lamp salso ligh tupint heexterio rmirrors.
Whe nthe causes state dabov enol onger apply, th edisplay message
disappears.
Blind Spot Assis tisoperational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo naspossible, payin g
attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 131).
XClean th esensor s(Ypage 240).
XRestart th eengine.
Blind Spo tAssistInoperativeBlind Spot Assis tisfaulty.
The yellow 9indicator lamp salso ligh tupint heexterio rmirrors.
XVisit aqualified specialist workshop .
ParkingGuidanceInoperativeParking Guidance is malfunctioning (Ypage 152).
XRestart theengine.
If th emultifunction display still shows th edisplay message :
XVisitaqualified specialist workshop .
Display messages193
On-boardc omputer andd isplays
Z

Display messagesPossible causes/consequences andMSolutions
ParkingGuidanceCanceledParking Guidance is deactivated.
Possibl ecauses are:
Rthev ehicl eiss kidding.
Rth es ensor sare dirty.
Ram alfunction has occurred .
Aw arning tone also sounds.
XReactivat eParking Guidance later (Ypage 152).
If th emultifunction display does no tsho wt he parking spac esymbol at
speeds belo w19mph (30 km/h):
XClean th esensor s(Ypage 240).
XRestart th eengine.
If th emultifunction display still does no tsho wt he parking spac esym-
bol at speeds belo w19mph (30 km/h):
XVisitaqualified specialist workshop .
Parking Guidance has been deactivated because you are no longer
followingthe recommended path.
XPark again and ,while doin gso, observ ethe display message sinthe
multifunction display.
Parkin gGuidanceFinishedThe vehicl eisparked. Awarning tone also sounds.
The display message disappear sautomatically.
Distance Pilot OffDistanc ePilotD ISTR ONICisd eactivated (Ypage 140).
If it was deactivated automatically, awarning tone also sounds.
Distance Pilot NowAvailableDistanc ePilotD ISTR ONICiso perational again after having been tem-
porarily unavailable .You can no wreactivat eDistance Pilot
DISTRONI C(
Ypage 140).
Distance Pilot Cur ‐rently UnavailableSee Operator'sMan‐ual
Distanc ePilotD ISTR ONICist emporarily inoperative.
Possibl ecauses are:
Rther adar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sofelectromagneti cradiation
Rthes ystem is outside th eoperating temperature range
Rtheo n-bo ardv oltag eistoolow.
Aw arning tone also sounds.
Whe nthe causes state dabov enol onger apply, th edisplay message
disappears.
Distanc ePilotD ISTR ONICiso perational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo naspossible, payin g
attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 131).
XRestart th eengine.
194Display messages
On-boardc omputer andd isplays

Display messagesPossible causes/consequences andMSolutions
DistancePilotInop‐erativeDistanc ePilotD ISTR ONICisf aulty.
Aw arning tone also sounds.
XVisit aqualified specialist workshop .
Distance Pilot Pas‐siveYou hav edepressed th eaccelerato rpedal .Distance PilotDISTR ONIC
is no longer controllin gthe speed of th evehicle.
XRemove your foo tfromt heaccelerato rpedal .
DistancePilot ---mphAcondition for activating Distance Pilot DISTRONIC has not been met.
XCheck the activation conditions for Distance Pilot DISTRONIC
(Ypage 140).
Cruise Control OffCruise control has been deactivated.
Ifaw arning tone also sounds, cruise control has deactivated auto-
matically (
Ypage 138).
Cruise Control ---mphCruise control cannot be activated, since not all of the activation con-
ditions have been met.
XCheck the activation conditions for cruise control (Ypage 138).
CruiseControlInop‐erativeCruise control is faulty.
Awarning tone also sounds.
XVisit aqualified specialist workshop.
Display messages195
On-board computer and displays
Z

Tires
Display messagesPossible causes/consequencesand MSolutions
CheckTirePressureSoonCanad aonly:
The tire pressure loss warning system hasd etecte das ignificant loss
in pressure.
Aw arning tone also sounds.
Possibl ecauses:
Ryouh avec hange dthe positions of the wheels and tire sorinstalled
new wheels and tires
Rthe tire pressure in one or mor etiresh asdropped
GWARNING
Tire pressures thata retoo lo wposet he following hazards:
Rtheym ayburst, especially as the load and vehicl espeed increase
Rtheym aywear excessivel yand/or unevenly, which mayg reatly
impai rtire traction.
Rthe drivin gcharacteristics, as well as steerin gand braking ,maybe
greatl yimpaired
There is ariskofana ccident.
XStop the vehicl ewithou tmaking any sudden steerin gorbraking
maneuvers. Pa yattentio ntothe trafficc onditions as yo udoso.
XSecure the vehicl eagain st rolling away (Ypage 131).
XCheck the tire sand,ifn ecessary,f ollowthe instructions for aflat
tire (Ypage 241).
XCheck the tire pressures and ,ifnecessary,c orrect the tire pressure.
XRestart the tire pressure loss warning system when the tire pres-
sure is correct (Ypage 262).
CheckTirePressureThenRestar tRunFlatIndicator
Canad aonly:
The tire pressure loss warning system generated adisplay message
and hasn ot been restarted since.
XSet the correct tire pressure in al lfou rtires.
XRestart the tire pressure loss warning system (Ypage 262).
Run Fla tIndicatorInoperativeCanad aonly:
The tire pressure loss warning system is faulty.
XVisitaq ualified specialis tworkshop.
PleaseCorrectTirePressureUSA only:
The tire pressure is too lo winatleastone of the tires, or the tire
pressure differenc ebetween the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 262).
XIf necessary,c orrect the tire pressure.
XRestart the tire pressure monitor (Ypage 264).
196Displaymessages
On-boardc omputer andd isplays

Display messagesPossible causes/consequences andMSolutions
TirePressure Soo nThe tire pressur einoneor mor etires has dropped significantly. The
whee lposition is shown in th emultifunction display.
Aw arning tone also sounds.
GWARNIN G
Tir ep ressures that are to olow pos ethe followin ghazards :
Rthey may burst, especially as th eload and vehicl espeed increas e
Rthey may wear excessivel yand/o runevenly, whic hmay greatl y
impair tire traction .
Rthed rivin gcharacteristics ,aswell as steering and braking ,may be
greatl yimpaire d
There is ariskofana ccident.
XStop thevehicl ewithout making any sudden steering or braking
maneuvers .Pay attention to th etraffic condition sasyou do so.
XSecur ethe vehicl eagainst rollin gaway (Ypage 131).
XChec kthe tires and ,ifneces sary, follow th einstruction sfor aflat
tire (Ypage 241).
XChec kthe tire pressur e(Ypage 262).
XIf necessary, correc tthe tire pressure.
Warnin gTireM al‐functionThe tire pressur einoneor mor etires has dropped suddenly. The whee l
position is shown in th emultifunction display.
GWARNIN G
Drivin gwithaf lat tire poses ariskoft hefollowin ghazards :
Raflat tire affects th eabilit ytos teer or brak ethe vehicl e
Ryou could lose control of th evehicle.
Rcontinued drivin gwithaf lat tire will caus eexces sive heat build-up
and possibl yafire
There is ariskofana ccident.
XStop thevehicl ewithout making any sudden steering or braking
maneuvers .Pay attention to th etraffic condition sasyou do so.
XSecur ethe vehicl eagainst rollin gaway (Ypage 131).
XChec kthe tires and ,ifneces sary, follow th einstruction sfor aflat
tire (Ypage 241).
TirePress.Monito rCurrently Unavaila‐ble
Becausethere is interferenc efromas tron gs ource of radi owaves, no
signals from th etirep ressur esensor sare detected. The tire pressur e
monitor is temporarily malfunctioning .
XDrive on.
The tire pressur emonitor restarts automatically as soo nasthe
problem has been resolved.
TirePress .Sen‐sor(s) Missin gThere is no signal from th etirep ressur esensor of on eorseveral
wheels. The pressur eoftheaffecte dtired oes no tappear in th emul-
tifunction display.
XHav ethe fault ytirep ressur esensor replace dataqualified special -
ist workshop .
Display messages197
On-boardc omputer andd isplays
Z

Display messagesPossible causes/consequences andMSolutions
TirePressure Moni‐tor Inoperative NoWheel Sensor s
The wheels mounte ddonothav eas uitable tire pressur esensor .The
tire pressur emonitor is deactivated.
XMoun twheels wit hsuitable tire pressur esensors.
The tire pressur emonitor is activated automatically after drivin gfor
af ew minutes.
Tir ePress.Monito rInoperativeThe tire pressur emonitor is faulty.
XVisit aqualified specialist workshop .
Vehicle
Display messagesPossible causes/consequences and MSolutions
Shiftto'P'or'N'to Start EngineYou haveattempte dtostart th eenginew itht he transmission in posi-
tion Ror D.
XShift th etransmission to position Por N.
Apply Brake toShift fro m'P'You hav eattempte dtomovet he transmission selector lever to posi-
tion D,Ror Nwithout depressing th ebrak epedal .
XDepress th ebrak epedal .
To Shift out of PorN,DepressBrakeand Start Engine
Withthe engin eswitched off ,you hav eattempte dtoshift th etrans -
mission out of position Por Nint oa nother transmission position .
XDepress thebrak epedal .
XStart th eengine.
Ris kofR ollingAwayVehicl eNotin'P'
The driver's door is no tfully closed and th etransmission is in position
R ,N or D.
Aw arning tone also sounds.
GWARNIN G
The vehicl emay rol laway.
There is ariskofana ccident.
XWhenparking th evehicle, shift th etransmission to position P.
OnlyShift to 'P'whenVehicl eisSta‐tionar y
The vehicl eismoving.
XPull ove rand stop th evehicl esafely as soo naspossible, payin g
attention to roa dand traffic conditions.
XShift th etransmission to position P.
Apply Brake toSelectRYou attempte dtoshift from position Dto position R.
XDepress th ebrak epedal .
XShift th etransmission to position R.
198Display messages
On-boardc omputer andd isplays