check engine light MERCEDES-BENZ C CLASS 2019 Owners Manual

If ABS intervenes when braking,you willfeel apulsing inthe brake pedal. The pulsating brakepedal can be an indication of hazardousroadconditions and can serveas aremindertotakeextra care while driving.
System limitationsRABS is active from speeds of approx. 5mph(8 km/h).
RABS may be impaired or may not function if amalfunction has occurred andtheyel‐low%ABSwarning lamp lights up contin‐uously inthe instrument cluster aftertheengine isstarted.
Function ofBAS (Brake Assist System)
\nWARNINGRisk of an accident causedbya malfunction inBAS (Brake AssistSys‐tem)
IfBAS is malfunctioning,the braking distancein an emergency braking situation isincreased.
Depressthe brake pedal with fullforcein emergency braking situations. ABSpreventsthe wheels from locking.
BAS supportsyour emergency braking situationwith additional brakeforce.
Ifyou depressthe brake pedalquickly,BAS isactivated:
RBAS automaticallybooststhe brake pres‐sure.
RBAS can shortenthe braking distance.
RABS preventsthe wheels from locking.
The brakes will function as usual onceyoureleasethe brake pedal.BAS is deactivated.
Function of ESP®(ElectronicStability Pro‐gram)
\nWARNINGRisk of skidding if ESP®ismalfunctioning
If ESP®is malfunctioning, ESP®cannot carryoutvehiclestabilization. In addition,otherdriving safety systems are switched off.
Drive on carefully.
HaveESP®checked at aqualified spe‐cialistworkshop.
\nWARNINGRisk of skidding if ESP®isdeactivated
Ifyou deactivate ESP®, ESP®cannot carryoutvehiclestabilization.
ESP®should onlybe deactivated inthefollowing situations.
Mercedes‑AMGvehicles:always observethenotes inthe Supplement. Otherwise,you mayfailtorecognize dangers.
17 2Driving and parking

Vehicles withTraffic Sign Assist:Detectedinstructions and traffic signs (page217).
Adjusting the instrument lighting
Turnbrightness control1up or down.The lighting ofthe Instrument Display and inthe control elements ofthevehicle interior isadjusted.
Menus and submenus
Functions onthe service menu ofthe on-board computer
On-board computer:
Service
Toselectthe function:swipe upwards ordownwards onthe left-handTouch Control.
Pressthe left-handTouch Control.
Functions ontheServicemenu:
RMessage memory (page 433)
RTires:
-Restartthe tire pressure losswarningsystem (page 398)
-Checkthe tire pressure withthe tire pres‐sure monitor (page 396)
-Restartthe tire pressure monitor(page 397)
RASSYST PLUS: calls upthe service due date(page 351)
RVehicles with aWidescreen Cockpit:Cool-ant: coolanttemperature display
REngine Oil Level: engine oil level
Calling upthe assistancegraphic
On-board computer:
Assistance
Thefollowing displaysareavailable onthe assis‐tance graphic menu:
RAssistancegraphic
RAttention level (page215)
Toswitch betweenthe displays:swipeupwards or downwards onthe left-handTouch Control.
Instrument Display and on-board computer231

Push handle1ofthe hood catch upwardsand liftthe hoodbyapproximately15in(40 cm).Toclose:lowerthe hood and let itfall from aheight of approximately 8 in (20 cm).
Ifthe hood canstill be lifted slightly,openthe hood again and close it with a little moreforce until it engages correctly.
Engine oil
Checkingthe engine oil level usingthe oildipstick
\nWARNINGRisk of burns from hot com‐ponent parts inthe engine compartment
Certain components inthe engine compart‐ment can beveryhot, e.g.the engine,theradiator and parts oftheexhaust system.
Allowthe enginetocool down and onlytouch component parts described inthefollowing.
Requirements:RThe engine must havean oil dipstick.If not,the engine oil level can bechecked only withthe on-board computer (page 355).
Depending onthe engine,the oil dipstick may beinstalled inthe engine compartment in differentlocations.
Thewaiting time beforecheckingthe oil levelwhenthe engine is at normal operatingtempera‐ture isfiveminutes.
Parkthevehicle on a level surface.
Pull oil dipstick1out and wipe off.
Slowly slide oil dipstick1intothe guidetubetothestop, andtakeit out again afterapproximatelythree seconds.ROil level is correct: oil level is between2and3.
ROil leveltoo low: oil level is at3orbelow.
354Maintenance and care

Ifthe indicator/warning lamps inthe instrumentcluster do not light up at lowtemperatures, it isverylikelythatthe discharged battery has fro‐zen. Inthis caseyou may neither jump-startthevehicle norchargethe battery.
The service life of a batterythat has beenthawed may be dramatically shortened. Thestartingcharacteristics may be impaired, espe‐cially at lowtemperatures.
It isrecommendedthatyou haveathawed bat‐terychecked at aqualified specialistworkshop.
AllvehiclesPlug-inhybrid:observethe notes inthe Supple‐ment. Otherwise,you mayfailtorecognize dan‐gers.
NOTEDamagecausedbynumerous orextended attemptstostartthe engine
Numerous orextended attemptstostarttheengine may damagethe catalytic converterduetonon-combusted fuel.
Avoid numerous andextended attemptstostartthe engine.
Observethefollowing points duringstartingassistance and whenchargingthe battery:
ROnly use undamaged jumper cables/charg‐ing cables with a sufficient cross-section andinsulatedterminal clamps.
RNon-insulated parts oftheterminal clampsmust not come into contact withother metalparts whilethe jumper cable/charging cableis connectedtothe battery/jump-startcon‐nection point.
RThe jumper cable/charging cable must notcome into contact withany parts which maymovewhenthe engine isrunning.
RAlways make surethat neitheryou northebattery is electrostaticallycharged.
RKeepawayfromfireand openflames.
RDo not leanoverthe battery.
Observethe additionalfollowing points whenchargingthe battery:
ROnly use batterychargerstested andapprovedfor Mercedes-Benz.
RReadthe batterycharger's operating instruc‐tions beforechargingthe battery.
Observethe additionalfollowing points duringstarting assistance:
RStarting assistance may only be providedusing batteries with a nominalvoltage of12V.
RThevehicles must nottouch.
RGasoline engine:Onlyacceptstarting assis‐tance ifthe engine andexhaust system arecold.
Starting assistance andchargingthe12 Vbattery
Requirements:RThevehicle is secured withthe electric park‐ing brake.
RAutomatic transmission:The transmissionis in position].
RThe ignition and all electrical consumers areswitched off.
RThe hood is open.
Breakdown assistance37 9

Display messagesPossible causes/consequences andPPSolutions
Active Brake Assist Func-tions Currently Limited SeeOperator's Manual
*Vehicles withthe Driving AssistancePackage:Active Brake Assistwith cross-traffic function, EvasiveSteering
Assist or PRE‑SAFE®PLUS aretemporarily unavailable or only partiallyavailable.
Vehicles withoutthe Driving Assistance package:Active Brake Assististemporarily unavailable.
The ambient conditions are outsidethe system limits (page175).
Drive on.As soon asthe ambient conditions are withinthe system limits,the system will becomeavailable again.
Ifthe display message does not disappear,stopthevehicle while paying attentiontoroad and traffic conditionsandrestartthe engine.
u
SRS Malfunction ServiceRequired
*Therestraint system isfaulty (page 34).
\nWARNINGRisk of injuryorfatal injury duetoa malfunction intherestraint system
Iftherestraint system is malfunctioning,restraint system components may be triggered unintentionally ormight not be triggered at all intheevent of an accident. This may affectthe EmergencyTensioning Device orairbag,forexample.
Havetherestraint systemchecked andrepaired immediately at aqualified specialistworkshop.
Detection of arestraint system malfunction:
RTheurestraint systemwarning lamp does not light up whenthe ignition is switched on.
RTheurestraint systemwarning lamp lights up continuously orrepeatedly during a journey.Visit aqualified specialistworkshop immediately.
Displaymessages andwarning/indicator lamps447

Warning/indicator lampPossible causes/consequences andPPSolutions
Restraint systemwarninglamp\nWARNINGRisk of injuryorfatal injury duetoa malfunction intherestraint system
Iftherestraint system is malfunctioning,restraint system components may be triggered unintentionally or might notbe triggered at all intheevent of an accident. This may affectthe EmergencyTensioning Device or airbag,forexam‐ple.
Havetherestraint systemchecked andrepaired immediately at aqualified specialistworkshop.
Drive on carefully.
Observethe messages onthe multifunction display.
Visit aqualified specialistworkshop immediately.
Seat belts
Warning/indicator lampPossible causes/consequences andPPSolutions
v
Seat beltwarning lamplights up
Thered seat beltwarning lamp will light upfor six seconds oncethe engine hasstarted.
In addition, awarningtone may sound.
The seat beltwarning lampremindsthe driver and front passengertofastentheir seat belts.
Fastenyour seat belt (page 38).
Ifyou haveplaced objects onthe front passenger seat,the seat beltwarning lamp mayremain lit.
Display messages andwarning/indicator lamps485

Compass...................................................301
Computersee On-board computer
ConnectionstatusDisplaying ............................................ 325Overview .............................................325
ConnectivitySwitching transmission ofthevehicleposition on/off .................................... 265
Contacts................................................... 309Calling up .............................................310Deleting ...............................................311Downloading (from mobile phone) .......310Importing .............................................311Importing (overview) ............................310Information .......................................... 309Making a call ........................................311Nameformat ........................................310Options ................................................311Storing .................................................311
ControllerOperating ............................................ 256
Convenience closingfeature.................... 82
Convenience opening................................81
Coolant (engine)Check level .......................................... 357Filling capacity .................................... 429Notes .................................................. 429
Coolingsee Climatecontrol
CopyrightLicenses ................................................31Trademarks............................................31
Cornering light function..........................12 5
CrossTraffic Alert....................................215
Crosswind AssistFunction/notes ....................................175
Cruise control..........................................181Buttons ................................................182Calling up a speed ...............................182Function ...............................................181Requirements: .....................................182Selecting .............................................182Setting a speed ...................................182Storing a speed ...................................182Switching off .......................................182
Switching on ........................................182System limitations ...............................181
Cup holderRear passenger compartment ..............11 5
Cup holder inthe center consoleInstalling/removing (automatictransmission) .......................................115
Customer Assistance Center (CAC).........27
CustomerRelations Department.............27
D
Dashboardsee Cockpit
Dashboard lightingsee Instrument cluster lighting
Data acquisitionVehicle .................................................. 28
Data import/export................................ 269Function/notes ................................... 269Importing/exporting ...........................270
DatastorageElectronic control units .........................28Online services ...................................... 29
500Index

EngineECOstart/stop function ......................150Engine number ....................................423Starting (emergency operationmode) ..................................................14 5Starting (RemoteOnline) .....................147Starting (start/stop button) .................145Starting assistance ..............................379Switching off (start/stop button) .........161
Engine dataDisplaying ............................................154
Engine number........................................ 423
Engine oil.................................................355Additives .............................................427Capacity .............................................. 428Checkingthe oil level usingthe oildipstick ............................................... 354Checkingthe oil level usingthe on-board computer ................................... 355MB-Freigabe or MB-Approval ...............428Quality ................................................. 428Topping up ...........................................355
EnteringcharactersFunction/notes .................................... 261
ESC (ElectronicStability Control)
see ESP®(ElectronicStability Program)
ESP®
Crosswind Assist .................................175
ESP®(ElectronicStability Program).......172Activating/deactivating .......................175Function/notes ....................................172
Exterior lightingCare .................................................... 364
Exterior lightingsee Lights
Exterior mirrors...............................134,13 5Anti-glaremode (automatic) ................135Automatic mirrorfolding function ........13 6Folding in/out .....................................134Operatingthe memory function ..........102Parking position ...................................135Setting .................................................13 4
External deviceLocking (child safety lock) ...................269
Eyeglasses compartment.......................106
F
Fatigue detectionseeATTENTION ASSIST
FavoritesAdding .................................................259Calling up ............................................ 259Deleting ............................................... 260Moving ................................................ 259Overview ............................................. 258Renaming ............................................ 259
FenderseeFront wheel arch
First-aid kit (soft sided).......................... 369
FlaconInserting/removing .............................14 2
Flat tire.....................................................370Changing a wheel .................................41 5MOExtended tires ................................370Notes ...................................................370TIREFIT kit ............................................371
FlattowingseeTow-bar system
Floor mats................................................12 0
Index507