engine MERCEDES-BENZ SLC 2019 Manual Online

Display messagesPossible causes/consequences andPPSolutions
Parking GuidanceParking GuidanceInoperativeInoperativeParking Guidance is malfunctioning (Ypage 156).
XRestart the engine.
If the multifunction display still shows the display message:
XVisit a qualified specialist workshop.
Parking GuidanceParking GuidanceCanceledCanceledParking Guidance is deactivated.
Possible causes are:
Rthe vehicle is skidding
Rthe sensors are dirty
Ra malfunction has occurred
A warning tone also sounds.
XReactivate Parking Guidance later (Ypage 156).
If the multifunction display does not show the parking space symbolat speeds below 19 mph (30 km/h):
XClean the sensors (Ypage 250).
XRestart the engine.
If the multifunction display still does not show the parking spacesymbol at speeds below 19 mph(30 km/h):
XVisit a qualified specialist workshop.
Parking Guidance has been deactivated because you are no longerfollowing the recommended path.
XPark again and, while doing so, observe the display messages inthe multifunction display.
Parking GuidanceParking GuidanceFinishedFinishedThe vehicle is parked. A warning tone also sounds.
The display message disappears automatically.
Active DistanceActive DistanceAssist OffAssist OffActive Distance Assist DISTRONIC was deactivated (Ypage 144).
If it was deactivated automatically, a warning tone also sounds.
Active DistanceActive DistanceAssist Now Availa‐Assist Now Availa‐bleble
Active Distance Assist DISTRONIC is operational again after havingbeen temporarily unavailable. You can now reactivate Active Dis-tance Assist DISTRONIC (Ypage 144).
Display messages199
On-board computer and displays
Z

Display messagesPossible causes/consequences andPPSolutions
Active DistanceActive DistanceAssist CurrentlyAssist CurrentlyUnavailable SeeUnavailable SeeOperator's ManualOperator's Manual
Active Distance Assist DISTRONIC is temporarily inoperative.
Possible causes are:
Rthe radar sensor system is temporarily inoperative, e.g. due toelectromagnetic radiation emitted by nearby TV or radio stationsor other sources of electromagnetic radiation
Rthe system is outside the operating temperature range
Rthe on-board voltage is too low
A warning tone also sounds.
When the causes stated above no longer apply, the display messagedisappears.
Active Distance Assist DISTRONIC is operational again.
If the display message does not disappear:
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 134).
XRestart the engine.
Active DistanceActive DistanceAssist InoperativeAssist InoperativeActive Distance Assist DISTRONIC is faulty.
A warning tone also sounds.
XVisit a qualified specialist workshop.
Act. DistanceAct. DistanceAssist SuspendedAssist SuspendedYou have depressed the accelerator pedal. Active Distance AssistDISTRONIC is no longer controlling the speed of the vehicle.
XRemove your foot from the accelerator pedal.
Distance Assist--Distance Assist--- mph- mphA condition for activating Active Distance Assist DISTRONIC has notbeen met.
XCheck the activation conditions for Active Distance AssistDISTRONIC (Ypage 144).
Cruise Control OffCruise Control OffCruise control has been deactivated.
If a warning tone also sounds, cruise control has deactivated auto-matically (Ypage 142).
Cruise Control - -Cruise Control - -- mph- mphCruise control cannot be activated, since not all of the activationconditions have been met.
XCheck the activation conditions for cruise control (Ypage 142).
Cruise ControlCruise ControlInoperativeInoperativeCruise control is malfunctioning.
A warning tone also sounds.
XVisit a qualified specialist workshop.
200Display messages
On-board computer and displays

Display messagesPossible causes/consequences andPPSolutions
Tire Pressure Moni‐Tire Pressure Moni‐tor Inoperative Notor Inoperative NoWheel SensorsWheel Sensors
The wheels mounted do not have a suitable tire pressure sensor.The tire pressure monitor is deactivated.
XMount wheels with suitable tire pressure sensors.The tire pressure monitor is activated automatically after drivingfor a few minutes.
Tire Press. Moni‐Tire Press. Moni‐tor Inoperativetor InoperativeThe tire pressure monitor is faulty.
XVisit a qualified specialist workshop.
Vehicle
Display messagesPossible causes/consequences andPPSolutions
Shift to 'P' orShift to 'P' or'N' to Start Engine'N' to Start EngineYou have attempted to start the engine with the transmission inposition^or[.
XShift the transmission to position]or\\.
Apply Brake toApply Brake toShift from 'P'Shift from 'P'You have attempted to shift the transmission to position[,^or\\without depressing the brake pedal.
XDepress the brake pedal.
To Shift out of PTo Shift out of Por N, Depressor N, DepressBrake and SwitchBrake and Switchon Engineon Engine
You have attempted to shift the transmission out of position]or\\into another transmission position with the engine switched off.
XDepress the brake pedal.
XStart the engine.
Driver's Door OpenDriver's Door Open& Transmission Not& Transmission Notin P Risk of Vehi‐in P Risk of Vehi‐cle Rolling Awaycle Rolling Away
The driver's door is not fully closed and the transmission is in posi-tion^,\\or[.
A warning tone also sounds.
GWARNING
The vehicle may roll away.
There is a risk of an accident.
XWhen parking the vehicle, shift the transmission to position].
Only Select ParkOnly Select Park(P) When Vehicle(P) When Vehicleis Stationaryis Stationary
The vehicle is moving.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XShift the transmission to position].
Apply Brake toApply Brake toSelect RSelect RYou have attempted to shift from position[to position^.
XDepress the brake pedal.
XShift the transmission to position^.
Displaymessages203
On-b oard computer and displays
Z

Display messagesPossible causes/consequences andPPSolutions
Service RequiredService RequiredDo Not Shift GearsDo Not Shift GearsVisit DealerVisit Dealer
You cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position[is selected:
XDrive to a qualified specialist workshop without shifting the trans-mission from position[.
If position^,\\or]is selected:
XNotify a qualified specialist workshop or breakdown service.
Reversing Not Pos‐Reversing Not Pos‐sible Servicesible ServiceRequiredRequired
You can no longer shift to transmission position^due to a mal-function.
Transmission positions],\\or[continue to be available.
A warning tone also sounds.
XVisit a qualified specialist workshop.
Transmission Mal‐Transmission Mal‐function Stopfunction StopA malfunction has occurred in the mechanical transmission compo-nents.
A warning tone also sounds. The transmission shifts automaticallyto position\\.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XShift the transmission to position].
XSecure the vehicle against rolling away (Ypage 134).
XNotify a qualified specialist workshop or breakdown service.
Stop Vehicle LeaveStop Vehicle LeaveEngine RunningEngine RunningWait TransmissionWait TransmissionCoolingCooling
The transmission has overheated. Pulling away can be temporarilyimpaired or not possible.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions. Do not continue drivingunder any circumstances.
XWait until the display message disappears before pulling away.
Auxiliary BatteryAuxiliary BatteryMalfunctionMalfunctionThe auxiliary battery for the automatic transmission is no longerbeing charged.
XVisit a qualified specialist workshop at the next opportunity.
XUntil then, always shift the transmission to position]beforeyou switch off the engine.
XBefore leaving the vehicle, apply the electric parking brake.

Display messagesPossible causes/consequences andPPSolutions
Y
Open/Close Vario-Open/Close Vario-Roof CompletelyRoof Completely
The roof is not locked.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XPush or pull and hold the roof switch until the roof is fully open orclosed (Ypage 79).
Y
Start Engine SeeStart Engine SeeOperator's ManualOperator's Manual
The on-board voltage is too low.
XStart the engine.
XAfter approximately ten seconds, repeat the opening or closingprocedure (Ypage 79).
The roof has been opened and closed several times in a row. Theroof drive has been switched off automatically for safety reasons.
You can open and close the roof again after approximately tenminutes.
XSwitch off the ignition and turn it back on.
XRepeat the opening or closing procedure (Ypage 79).
Close Rear SideClose Rear SideWindowsWindowsYou leave the vehicle and at least one rear side window is open.
XClose the side windows (Ypage 76).

Warning and indicator lamps
General notes
Some systems carry out a self-diagnosis when the ignition is switched on. Therefore, some indi-cator and warning lamps may light up or flash temporarily. This behavior is non-critical. Theseindicator and warning lamps only indicate a malfunction if they light up or flash after starting theengine or whilst driving.
Safety
Seat belts
Warning/indicatorlamp
QQSignal type
Possible causes/consequences andPPSolutions

Safety systems
Warning/indicatorlamp
QQSignal type
Possible causes/consequences andPPSolutions
'MQ'(USA only) orM(Canada only): the red brake system warning lampis lit while the engine is running. A warning tone also sounds.
GWARNING
There is not enough brake fluid in the brake fluid reservoir.
The braking effect may be impaired.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying attention toroad and traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 134).
XDo not add brake fluid. Adding more will not correct the malfunction.
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction display.
'QUSA only: the red brake system warning lamp is lit while the engine is run-ning. The multifunction display also shows a display message with the&symbol.
The brake pads/linings have reached their wear limit.
XVisit a qualified specialist workshop.
%QThe yellow ABS warning lamp is lit while the engine is running.
ABS (anti-lock braking system) is malfunctioning.
If there is an additional warning tone, the EBD (electronic brake force distribu-tion) is malfunctioning.
Other driving systems and driving safety systems may also malfunction.
GWARNING
The brake system continues to function normally, but without the functions lis-ted above. The front and rear wheels could therefore lock if you perform a fullbrake application, for example.
The steerability and braking characteristics may be severely affected. The brak-ing distance in an emergency braking situation can increase.
If ESP®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XObserve the additional display messages in the multifunction display.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
If the ABS control unit is defective, there is also a possibility that other systems,such as the navigation system or the automatic transmission, will not be availa-ble.
210Warning and indicator lamps
On-board computer and displays

Engine
Warning/indicatorlamp
QQSignal type
Possible causes/consequences andPPSolutions

Warning/indicatorlamp
QQSignal type
Possible causes/consequences andPPSolutions
XMake sure that the air supply to the engine radiator is not blocked, e.g. bysnow, slush or ice.
XIf the coolant temperature gage is below theHmarking (Ypage 168), driveon to the next qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in mountainous ter-rain and stop-and-go traffic.
Driving systems
Warning/indicatorlamp
QQSignal type
Possible causes/consequences andPPSolutions

Customer Assistance Center. The customerservice representative can use the receiveddata to decide what kind of assistance isrequired. You are then, for example, guided tothe nearest Mercedes-Benz Service Center ora recovery vehicle is called.
If vehicle data needs to be transferred duringan MB Info call or a Roadside Assistance call,this is initiated by the Customer AssistanceCenter. You will see theRoadside Assis‐Roadside Assis‐tance Connectedtance Connectedmessage in the COMANDdisplay. If the Vehicle Health Check can bestarted, theRequest for vehicle diagno‐Request for vehicle diagno‐sis received. Start vehicle diagno‐sis received. Start vehicle diagno‐sis?sis?message appears in the display.
XConfirm the message withYesYes.
XWhen theVehicle Diagnosis: PleaseVehicle Diagnosis: Pleasestart ignition.start ignition.message appears, turnthe SmartKey to positionHin the ignitionlock (Ypage 118).
XWhen thePlease follow the instruc‐Please follow the instruc‐tions received by phone and movetions received by phone and moveyour vehicle to a safe positionyour vehicle to a safe positionmes-sage appears, follow the customer servicerepresentative's instructions.The message in the display disappears.
If you selectCancelCancelthe Vehicle HealthCheck is canceled completely.
The vehicle operating state check begins.You will see theVehicle diagnosisVehicle diagnosisactivated.activated.message.
When the check is completed, theSendSendvehicle diagnostics data (Voice con‐vehicle diagnostics data (Voice con‐nection may be interrupted duringnection may be interrupted duringdata transfer)data transfer)message appears. The vehi-cle data can now be sent to the CustomerAssistance Center.
XPressOKOKto confirm the message.The voice connection with the CustomerAssistance Center is terminated.
You will see theVehicle Diagnosis:Vehicle Diagnosis:Transferring data...Transferring data...message.
The vehicle data is sent to the CustomerAssistance Center.
Depending on what the customer service rep-resentative agreed with you, the voice connec-tion is re-established after the transfer is com-plete. If necessary, you will be contacted at alater time by another means, e.g. by e-mail orphone.
Another function of the Vehicle Health Checkis the transfer of service data to the Customer
Assistance Center. If a service is overdue, theCOMAND display shows a message about vari-ous special offers at your workshop.
USA only: this information can also be calledup under "Owners Online" at http://www.mbusa.com.
Information on the data stored in the vehicle(Ypage 28).
Information on Roadside Assistance(Ypage 25).
Garage door opener
General notes
The HomeLink®garage door opener integratedin the rear-view mirror allows you to operateup to three different door and gate systems.
Use the integrated garage door opener only ongarage doors that:
Rhave safety stop and reverse features and
Rmeet current U.S. federal safety standards
Once programed, the integrated garage dooropener in the rear-view mirror will assume thefunction of the garage door system's remotecontrol. Please also read the operating instruc-tions for the garage door system.
When programming a garage door opener,park the vehicle outside the garage. Do notrun the engine while programming.
Certain garage door drives are incompatiblewith the integrated garage door opener. If youhave difficulty programing the integratedgarage door opener, contact an authorizedMercedes-Benz Center.
Alternatively, you can call the following tele-phone assistance services:
RUSA:Mercedes-Benz Customer AssistanceCenter at 1-800-FOR-MERCedes
RCanada:Customer Service at1-800-387-0100
RHomeLink®hotline 1-800-355-3515 (free ofcharge)
More information on HomeLink®and/or com-patible products is also available online athttp://www.homelink.com.
Notes on the declaration of conformity(Ypage 26).
USA: FCC ID: CB2HMIHL4
Canada: IC: 279B-HMIHL4
234Features
Stowage and features