Display messagesPossible causes/consequences andMSolutions
RadarSensorsDirtySee Operator' sMan‐ual
At least on eofthefollowin gdrivin gsystems or drivin gsafet ysystems
is temporarily restricted or inoperative:
RPRE-SAF E®PLUS
RPRE-SAF E®Brake
RCOLLISION PREVENTION ASSIST PLU S
RActive LaneKeepin gAssist
RActive Blind Spot Assis t
RDISTRONICPLUSw ithS teering Assis tand Stop&Go Pilo t
If th eradar sensor system in fron tisdirty, Active Blind Spot Assis twill
no tp erfor mac ourse-correcting brak eapplication .
Possibl ecauses are:
Rthes ensor sintheradiato rtrima nd/o rinthebumpers are dirty
Rthef unction of th edrivin gsystem or drivin gsafet ysystem is
impaire ddue to heav yrain or snow
Aw arning tone also sounds.
Whe nthe causes state dabov enol onger apply, th edisplay message
disappears. Al ldrivin gsystems or drivin gsafet ysystems are operative
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 152).
XSwitc hoff th eengine.
XClean th esensor sinthefollowin glocation s(Ypage 296):
Rin theradiato rtrim
Rin th efront bumper
Rin therear bumper, particularly in th emiddle of th erear bumper
XRestart th eengine.
The display message disappears.
6
SRSMalfunctionSer ‐viceRequired
The restrain tsystem is faulty. The 6warning lamp also lights up in
th ei nstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbetriggered .
There is an increased ris kofinjury.
XVisit aqualified specialist workshop immediately.
Fo rfurther information about th erestrain tsystem, see (
Ypage 41).
Display messages227
On-boardc omputer andd isplays
Z
Display messagesPossible causes/consequences andMSolutions
If theconditi onsa re no tfulfilled ,the system is no toperating correctly.
XVisit aqualified specialist workshop immediately.
Fo rfurther information about th eOccupant Classification System, see
(
Ypage 49).
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 114).
iLE Dl igh tsources: th edisplay message for th ecorre spondin g
lamp 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 defective.
XVisit aqualified specialist workshop .
b
AutoLampF unctionInoperative
The ligh tsensor is faulty.
XVisit aqualified specialist workshop .
b
Switch Off Lights
You leavethe vehicl eand th elights are switched on .Awarning tone
also sounds.
XTurn th eligh tswitch to th eà position .
b
Switch On Headlamps
You are drivin gwithl ow-beam headlamp sswitched off .
XTurn theligh tswitch to th eL orà position .
Display messages231
On-boardc omputer andd isplays
Z
Display messagesPossible causes/consequences andMSolutions
LaneKeepin gAssistCurrently Unavaila‐ble See Operator' sManualorActiveLan eKeepin gAssistCurrently Unavaila‐ble See Operator' sManual
LaneKeepin gAssistorA ctiveLaneK eepin 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 gAssistorA ctiveLaneK eepin 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 152).
XClean th ewindshield.
Lan eKeepin gAssistInoperativeor
ActiveLan eKeepin gAssist Inoperative
LaneKeepin gAssistorA ctiveLaneK eepin gAssistisd efective.
XVisit aqualified specialist workshop .
Blind SpotAssistCurrently Unavaila‐ble See Operator' sManualorActiveBlind Spo tAssistCurrently Unavaila‐ble See Operator' sManual
Blind Spot AssistorActiveBlind Spot Assis tistemporarily inoperative.
Possibl ecauses are:
Rther adar sensor system is outside th eoperating temperature
range.
Rth er 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 .
Whe nthe causes state dabov enol onger apply, th edisplay message
disappears.
Blind Spot Assis torActiveBlind 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 152).
XRestart th eengine.
Blind Spo tAssistInoperativeor
Active Blind Spo t
Assist Inoperative
Blind Spot AssistorActiveBlind Spot Assis tisdefective.
XVisit aqualified specialist workshop .
ParkAssistCanceledThe driver's door is open .
XRepeat theparking gap measuremen tand parking process wit hthe
driver's door closed .
Display messages237
On-boardc omputer andd isplays
Z
Display messagesPossible causes/consequences andMSolutions
DISTRONIC PLUSNowAvailableDISTRONI CPLUSiso perational again after having been temporarily
unavailable .You can no wreactivat eDISTR ONICPLUS(Ypage 162).
DISTRONIC PLU SCur‐rently UnavailableSee Operator' sMan‐ual
DISTRONI CPLUSist emporarily inoperative.
Steering Assis tand Stop&Go Pilo tare temporarily 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.
DISTRONI CPLUSiso 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 152).
XRestart th eengine.
DISTRONICPLU SInop‐erativ eDISTRONI CPLUSisd efective.
The followin gmay hav ealso failed:
RBASP LUSw ithC ross-Traffic Assis t
RPRE-SAFE®Brake
RSteering Assis tand Stop&Go Pilo t
Aw arning tone also sounds.
XVisit aqualified specialist workshop .
DISTRONIC PLUSSus‐pendedYou hav edepressed th eaccelerato rpedal .DISTR ONICPLUSisn o
longer controllin gthe speed of th evehicle.
XRemove your foo tfromt heaccelerato rpedal .
DISTRONIC PLU S---mphAn activation condition for DISTRONI CPLUSisn otfulfilled .
XCheckthe activation condition sfor DISTRONI CPLUS(Ypage 162).
Display messages23 9
On-boardc omputer andd isplays
Z
Display messagesPossible causes/consequences andMSolutions
Check TiresThe tire pressureinoneor mor etires has dropped significantly. The
whee lposition is displayed 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 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 152).
XChec kthe tires and ,ifneces sary, follow th einstruction sfor aflat
tire (Ypage 300).
XChec kthe tire pressur e(Ypage 323).
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 vehicle.
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 152).
XChec kthe tires and ,ifneces sary, follow th einstruction sfor aflat
tire (Ypage 300).
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 dtireisn otdisplayed in th emul-
tifunction display.
XHav ethe fault ytirep ressur esensor replace dataqualified special -
ist workshop .
242Display messages
On-boardcomputer andd isplays
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 .
ToDeselect PorN,DepressBrake andStart 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.
TransmissionNotinPR iskofV ehicleRollin gAway
The driver's door is open or 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.
XShift thetransmission to position P.
XSecurethe vehicl eagainst rollin gaway (Ypage 152).
XClosethe driver's door completely.
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.
Display messages243
On-boardc omputer andd isplays
Z
Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
8NThe yellow reserve fuel warning lamp flashes while the vehicleisinm otion.
In addition, the ;Check Engine warning lamp may light up.
The fuel filler cap is not closed correctly or the fuel system is leaking.
XCheck that the fuel filler cap is correctly closed.
XIf the fuel filler cap is not correctly closed: close the fuel filler cap.
XIf the fuel filler cap is closed:visitaqualified specialist workshop.
?NThe red coolant warning lamp lights up while the engine is running and the
coolant temperature gauge is at the start of the scale.
The temperature sensor for the coolant temperature gage is defective.
The coolant temperature is no longer being monitored .There is arisk of engine
damage if the coolant temperature is too high.
XPul lover and stop the vehicles afelyand switch off the engine, paying attention
to road and traffic conditions. Do not continue driving under any circumstances.
XSecure the vehiclea gainst rolling away(Ypage152).
XConsult aqualified specialist workshop.
Warning and indicator lamps in the instrument cluster253
On-board computer and displays
Z
Cleaning themirror turn signals
!Only use cleanin gagents or cleanin gcloths
that are suitable for plastic lenses.U nsuitable
cleanin gagents or cleanin gcloth scould
scratch or damag ethe plastic lenses of the
mirror tur nsignals.
XClean th eplastic lenses of th emirror tur nsig-
nals in th eexteri or mirror housing usingaw et
sponge and mild cleanin gagent, e.g.
Mercedes-Ben zcar shampoo or cleaning
cloths.
Cleaning th esensors
!If you clean th esensorsw ithapower
washer, mak esure that you keep adistance
of at least 11.8 in (30 cm)between the vehicl e
and th epower washer nozzle. Information
about th ecorrec tdistanc eisavailabl efrom
th ee quipment manufacturer.
XClean sensors :of th edriving systems with
water, car shampoo and asoftc loth.
Cleaning th erearv iew camera and 360°
camera
!Do no tclean th ecamera lensa nd thearea
aroun dthe rear view camera or 360°camera
with ahigh-pressurew aterjet.
XMakes ure that th evehicle is stationar yand
that th eSmartKey is in position 2in th eigni-
tio nlock.
XOpen th ecamera cover for cleanin gvia the
multimedia system (see th eseparate operat-
ing instructions).
XTo clean th ecamera: use clean wate rand a
softc loth to clean camera lens :.
360°camera: if you driveatspeeds above
20 mph (30 km/h) or with th eSma rtKey in posi-
tion 0or 1in th eignition lock, th ecover of the
360° camera closes automatically.
Cleaning th eexhaust pipes
GWARNING
The exhaust tail pipe and tail pipe trim can
become ver yhot.Ify ou com eintoc ontact
with these part softhevehicle ,you coul dburn
yourself. Thereisar isk of injury.
Always be particularly careful aroun dthe
exhaust tail pipe and th etail pipe trim. Allow
these component stocooldown before touch-
ing them.
!Do no tclean th eexhaust pipe with acid-
based cleanin gagents ,suchasb athroom
cleaner or wheel cleaner.
!Mercedes-AM Gvehicle swith black exhaust
pipes:t heblack-chrome tailpipe finishers
shouldn otbe polished with achrom epolish.
They will otherwise lose their black sheen. For
optimal care, th efaceplates shouldber ubbed
with alightly oiled cloth after everyc ar wash.
Commercially availabl eengine and car eoils
are suitable for this.
For heavier soiling, you can apply afinep aint-
work polishw itham icrofiber cloth .Remove
th ee xcess polishr esidue after polishing.
296Care
Maintenance and care