2018 MERCEDES-BENZ CLA COUPE Owner's Manual

Display messagesPossible causes/consequences andMSolutions
çThere is onlyaverys mall amount of fuel in th efuel tank.
XRefue lattheneares tgas station without fail .
æ
Gas Cap Loose
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. The vehicl eisskidding.
Aw arning tone also sounds.
XReactivat ethe HOLD function later (Ypage 157).
The HOLD function is deactivated. Whe nthe brak epedal is firmly
depressed, an activation condition is no tfulfilled .
Aw arning tone also sounds.
XChec kthe activation condition sfor th eHOLDf unction
(Ypage 157).
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On-boardc omputer andd isplays
Z

Display messagesPossible causes/consequences andMSolutions
LaneKeepin gAssistCurrently Unavaila‐ble See Operator' sManual
LaneKeepin gAssistisd eactivated and temporarily inoperative.
Possibl ecauses are:
RThe windshield 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
RThe lan emarking sare wor naway, dark or covered up, e.g. by dir tor
snow
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 141).
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:
RThe radar sensor system is temporarily inoperative, e.g. due to
electromagneti cradiation emitted by nearby TV or radi ostation sor
other source sofelectromagneti cradiation .
RThe radar sensor system is outside th eoperating temperature
range.
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 141).
XRestart th eengine.
Blind Spo tAssistInoperativeBlind Spot Assis tisfaulty.
The yellow 9indicator lamp salso ligh tupint heexterio rmirrors.
XVisit aqualified specialist workshop .
ParkingPilot Can ‐celedThe driver's door is open and th edriver's seat belt has no tbeen fas -
tened.
XRepeat th eparking process wit hthe seat belt fastene dand th e
driver's door closed .
208Display messages
On-boardcomputer andd isplays

Display messagesPossible causes/consequences andMSolutions
You haveinadvertentl ytou ched th emultifunction steering whee lwhile
steering intervention was active .
XWhilesteering intervention is active ,makes uret hatthe multifunc-
tion steering whee lisnottouched unintentionally.
The vehicl ehas started to skid and ES P®has intervened.
XUse Parking Pilotagain later (Ypage 164).
ParkingPilot Inop‐erativ eYou hav ejustc arrie doutalarg enumber of turnin gorparking maneu-
vers.
Parking Pilo twill become available again after approximately te n
minute s(
Ypage 164).
XPull ove rand stop th evehicl esafely as soo naspossible, payin g
attention to roa dand traffic conditions.
XSwitc hoff and restar tthe engine.
If th emultifunction display still shows th edisplay message :
XVisitaqualified specialist workshop .
Parking AssistPAR KTRONI Cismalfunctioning .
XVisitaqualified specialist workshop .
ParkingPilot Fin ‐ishedThe vehicl eisparked. Awarning tone also sounds.
The display message disappear sautomatically.
Distance Pilot OffDistanc ePilotD ISTR ONICisd eactivated (Ypage 155).
If it was no tdeactivated by th edriver ,aw arning 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 152).
Distance Pilot Cur ‐rently UnavailableSee Operator'sMan‐ual
Distanc ePilotD ISTR ONICist emporarily 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 sofelectromagneti cradiation .
RThe system is outside th eoperating temperature range.
RThe on-boar dvoltag 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 141).
XRestart th eengine.
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On-boardc omputer andd isplays
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Display messagesPossible causes/consequences andMSolutions
DistancePilotInop‐erativeDistanc ePilotD ISTR ONICism alfunctioning .Situation-dependen t
braking assistanc emay also hav efailed.
Aw arning tone also sounds.
XVisit aqualified specialist workshop .
Distance Pilot Sus‐pendedYou havedepressed th eaccelerato rpedal .Distance PilotDISTR ONIC
is no longer controllin gthe speed of th evehicle.
XRemove your foo tfromt heaccelerato rpedal .
Distance Pilot
---m ph
Aconditi on for activating Distanc ePilotD ISTR ONIChas no tbeen met .
XCheckthe activation condition sfor Distanc ePilotD ISTR ONIC
(Ypage 152).
CruiseContro lInop‐erativeCruisecontro lismalfunctioning .
Aw arning tone also sounds.
XVisit aqualified specialist workshop .
Cruise Control
---mph
RAconditi on for activating cruise control has no tbeen fulfilled .
You hav etried to store aspeed belo w20mph (30 km/h), for exam-
ple.
RES P®is deactivated. The yellow ES P®OFFw arning lamp is lit .
XIf conditionspermit ,drive faste rtha n2 0m ph (30 km/h )and store
th es peed.
or
XChec kthe activation condition sfor cruise control (Ypage 150).
or
XReactivat eESP®(Ypage 185).
210Display messages
On-boardc omputer andd isplays

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 141).
XCheck the tire sand,ifn ecessary,f ollowthe instructions for aflat
tire (Ypage 271).
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 294).
CheckTirePressureThenRestartR unFlatIndicator
Canadaonly:
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 294).
Run FlatI ndicatorInoperativeCanadaonly:
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 294).
XIf necessary,c orrect the tire pressure.
XRestart the tire pressure monitor (Ypage 297).
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On-boardc omputer andd isplays
Z

Display messagesPossible causes/consequences andMSolutions
Check TiresUSAo nly:
The tire pressur einoneor mor etires has dropped significantly. The
whee lposition appear sinthemultifunction 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 increase.
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 yimpaired.
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 141).
XChec kthe tires and ,ifneces sary, follow th einstruction sfor aflat
tire (Ypage 271).
XChec kthe tire pressur e(Ypage 294).
XIf necessary, correc tthe tire pressure.
Warnin gTireM al‐functionUS Ao nly:
The tire pressur einoneor mor etires has dropped suddenly. The whee l
position appear sinthemultifunction 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 evehicl e
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 141).
XChec kthe tires and ,ifneces sary, follow th einstruction sfor aflat
tire (Ypage 271).
TirePress.Monito rCurrently Unavaila‐ble
USAo nly:
Becaus ethere 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.
212Display messages
On-boardc omputer andd isplays

Display messagesPossible causes/consequences andMSolutions
TirePress.Sen‐sor(s) Missin gUSAo nly:
There is no signal from th etirep ressur esensor of on eorseveral tires .
The pressur eoftheaffecte dtired oes no tappear in th emultifunction
display.
XHav ethe fault ytirep ressur esensor replace dataqualified special -
ist workshop .
TirePressure Moni‐tor Inoperative NoWheel Sensor s
USAo nly:
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 rInoperativeUSAo nly:
The tire pressur emonitor is faulty.
XVisit aqualified specialist workshop .
Vehicle
Display messagesPossible causes/consequences and MSolutions
DepressBrake toStart EngineYou hav eattempte dtostart th eenginew itht he transmission in posi-
tion Nwithout depressing th ebrak epedal .
XDepress th ebrak epedal .
ToDeselect PorN,DepressBrake andStart Engine
You hav eattempte dtoshift th etransmission to position Ror Dwith-
out starting th eengine.
XStart th eengine.
XDepress th ebrak epedal .
iIt is only possibl etoshift th etransmission from position Pto th e
desire dposition if you depress th ebrak epedal .Onlyt henc an th e
parking loc kbedeactivated. If you do no tdepress th ebrak epedal ,
th eD IRECT SELECT lever can still be moved but th eparking loc k
remain sengaged.
iAt transmission fluid temperatures belo wÒ4‡ (Ò20 †) you can
only shift out of position Pint oa nother transmission position when
th ee ngineisr unning.
Apply Brake toShift fro m'P'You hav eattempte dtoshift th etransmission to position R,N or D
without depressing th ebrak epedal .
XDepress th ebrak epedal .
Display messages213
On-boardc omputer andd isplays
Z

Display messagesPossible causes/consequences andMSolutions
TransmissionNotinPRiskofV ehicleRollin gAway
The driver's door is open or no tfull yc losed 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.
XShift thetransmission to position P.
XSecurethe vehicl eagainst rollin gaway (Ypage 141).
XClosethe driver's door completely.
Servic eRequiredDoNot Shift GearsVisit Dealer
You canno tchang et he transmission position due to amalfunction .
Aw arning tone also sounds.
If transmission position Dis selected:
XDrive to aqualified specialist workshop without shifting th etrans -
mission from position D.
If transmission position R,N or Pis selected:
XSecur ethe vehicl eagainst rollin gaway (Ypage 141).
XNotify aqualified specialist workshop or breakdown service.
Onl yShift 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.
To Engage Trans‐miss. PositionRFirst DepresstheBrake
You hav eattempte dtoshift from position Dor Nto transmission
position R.
XShift th etransmission to position Rwhile depressing th ebrak e
pedal .
ReversingNotPossi‐bleServic eRequiredThe automatic transmission is malfunctioning .You canno tbacku p.
XVisit aqualified specialist workshop .
Transmission Mal‐functionThe automatic transmission is malfunctioning .
XVisitaqualified specialist workshop .
Transmission Mal‐function StopThe automatic transmission is malfunctioning .
XPull overand stop th evehicl esafely as soo naspossible, payin g
attention to roa dand traffic conditions.
XSecur ethe vehicl eagainst rollin gaway (Ypage 141).
XConsult aqualified specialist workshop .
214Display messages
On-boardcomputer andd isplays