ECU MERCEDES-BENZ GLC 2019 Service Manual
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2019, Model line: GLC, Model: MERCEDES-BENZ GLC 2019Pages: 370, PDF Size: 19.55 MB
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Display messagesPossible causes/consequences and P PSolutions
LaneLaneKeepingKeepingAssistAssistInoperativeInoperativeorActiveActiveLaneLaneKeepingKeepingAssist InoperativeAssist Inoperative
Lane Keeping Assist or Active Lane Keeping Assist is faulty.
XVisit a qualified specialist workshop.
Blind Spot AssistBlind Spot AssistCurrently Unavaila‐Currently Unavaila‐ble See Operator'sble See Operator'sManualManualorActiveActiveBlind Spot AssistBlind Spot AssistCurrently Unavaila‐Currently Unavaila‐ble See Operator'sble See Operator'sManualManual
Blind Spot Assist or Active Blind Spot Assist is temporarily inoperative.
Possible causes are:
Rthe radar sensor system is outside the operating temperature range
Rthe radar sensor system is temporarily inoperative, e.g. due to elec-tromagnetic radiation emitted by nearby TV or radio stations orother sources of electromagnetic radiation
When the causes stated above no longer apply, the display messagedisappears.
Blind Spot Assist or Active Blind Spot Assist 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 152).
XRestart the engine.
Blind Spot AssistBlind Spot AssistInoperativeInoperativeorActive Blind SpotActive Blind SpotAssist InoperativeAssist Inoperative
Blind Spot Assist or Active Blind Spot Assist is faulty.
XVisit a qualified specialist workshop.
Active ParkingActive ParkingAssist CanceledAssist CanceledThe driver's door is open.
XRepeat the parking gap measurement and parking process with thedriver's door closed.
You touched the multifunction steering wheel while steering inter-vention was active.
XWhile steering intervention is active, make sure that the multifunc-tion steering wheel is not touched unintentionally.
The vehicle has started to skid and ESP®has intervened.
XUse Active Parking Assist again later (Ypage 175).
Active ParkingActive ParkingAssist InoperativeAssist InoperativeActive Parking Assist is malfunctioning or faulty.
XFollow the instructions and helpful hints in the "Problems withParking Assist PARKTRONIC" section (Ypage 182).
If the multifunction display still shows the display message:
XVisit a qualified specialist workshop.
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Display messagesPossible causes/consequences and P PSolutions
Active DistanceActive DistanceAssist CurrentlyAssist CurrentlyUnavailable SeeUnavailable SeeOperator's ManualOperator's Manual
Active Distance Assist DISTRONIC is temporarily inoperative.
Active Steering Assist is also temporarily inoperative.
Possible causes are:
Rthe radar sensor system is temporarily inoperative, e.g. due to elec-tromagnetic radiation emitted by nearby TV or radio stations orother 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 152).
XRestart the engine.
Active DistanceActive DistanceAssist InoperativeAssist InoperativeActive Distance Assist DISTRONIC is defective.
The following may have also failed:
RActive Brake Assist with cross-traffic function
A warning tone also sounds.
XVisit a qualified specialist workshop.
Active DistanceActive 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.
Active DistanceActive DistanceAssist - - - mphAssist - - - mphA condition for activating Active Distance Assist DISTRONIC has notbeen met.
XCheck the activation conditions for Active Distance AssistDISTRONIC (Ypage 164).
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Display messagesPossible causes/consequences and P PSolutions
Active SteeringActive SteeringAssist CurrentlyAssist CurrentlyUnavailable SeeUnavailable SeeOperator's ManualOperator's Manual
Active Steering Assist is temporarily inoperative.
Possible causes are:
Rthe windshield in the camera's field of vision is dirty
Rvisibility is impaired due to heavy rain, snow or fog
Rthere have been no lane markings for an extended period
Rthe lane markings are worn away, dark or covered up, e.g. by dirt orsnow
When the causes stated above no longer apply, the display messagedisappears.
Active Steering Assist 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 152).
XClean the windshield.
Active SteeringActive SteeringAssist InoperativeAssist InoperativeActive Steering Assist is faulty.
However, the Active Distance Assist DISTRONIC functions are stillavailable.
A warning tone also sounds.
XVisit a qualified specialist workshop.
CruiseCruiseControlControlInop‐Inop‐erativeerativeCruise control is malfunctioning.
A warning tone also sounds.
XVisit a qualified specialist workshop.
Cruise ControlCruise Control- - - mph- - - mph
RA condition for activating cruise control has not been met.
You have tried to store a speed below 20 mph (30 km/h), for exam-ple.
RESP®is deactivated The yellow ESP®OFF warning lamp is lit.
XIf conditions permit, drive faster than 20 mph (30 km/h) and storethe speed.
or
XCheck the activation conditions for cruise control (Ypage 160).
or
XReactivate ESP®(Ypage 69).
or
XReactivate ESP®in Mercedes-AMG vehicles (Ypage 70).
Cruise Control OffCruise Control OffCruise control has been deactivated.
If a warning tone also sounds, cruise control has deactivated auto-matically (Ypage 160).
Displaymessages249
On-b oard computer and displays
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Tires
Display messagesPossible causes/consequences and P PSolutions
CheckCheckTireTirePressurePressureSoonSoonCanada only:
The tire pressure loss warning system has detected a significant lossin pressure.
A warning tone also sounds.
Possible causes:
Ryou have changed the positions of the wheels and tires or installednew wheels and tires
Rthe tire pressure in one or more tires has dropped significantly
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase.
Rthey may wear excessively and/or unevenly, which may greatlyimpair tire traction.
Rthe driving characteristics, as well as steering and braking, may begreatly impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or brakingmaneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 152).
XCheck the tires and, if necessary, follow the instructions for a flattire (Ypage 315).
XCheck the tire pressures and, if necessary, correct the tire pressure.
XRestart the tire pressure loss warning system when the tire pres-sure is correct (Ypage 337).
CheckCheckTireTirePressurePressureThen Restart RunThen Restart RunFlat IndicatorFlat Indicator
Canada only:
The tire pressure loss warning system generated a display messageand has not been restarted since.
XSet the correct tire pressure in all four tires.
XRestart the tire pressure loss warning system (Ypage 337).
Run Flat IndicatorRun Flat IndicatorInoperativeInoperativeCanada only:
The tire pressure loss warning system is faulty.
XVisit a qualified specialist workshop.
PleasePleaseCorrectCorrectTireTirePressurePressureThe tire pressure is too low in at least one of the tires, or the tirepressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 339).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 339).
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Display messagesPossible causes/consequences and P PSolutions
Check TiresCheck TiresThe tire pressure in one or more tires has dropped significantly. Thewheel position is displayed in the multifunction display.
A warning tone also sounds.
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase.
Rthey may wear excessively and/or unevenly, which may greatlyimpair tire traction.
Rthe driving characteristics, as well as steering and braking, may begreatly impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or brakingmaneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 152).
XCheck the tires and, if necessary, follow the instructions for a flattire (Ypage 315).
XCheck the tire pressure (Ypage 339).
XIf necessary, correct the tire pressure.
Warning Tire Mal‐Warning Tire Mal‐functionfunctionThe tire pressure in one or more tires has dropped suddenly. The wheelposition is shown in the multifunction display.
GWARNING
Driving with a flat tire poses a risk of the following hazards:
Ra flat tire affects the ability to steer or brake the vehicle
Ryou could lose control of the vehicle
Rcontinued driving with a flat tire will cause excessive heat build-upand possibly a fire
There is a risk of an accident.
XStop the vehicle without making any sudden steering or brakingmaneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 152).
XCheck the tires and, if necessary, follow the instructions for a flattire (Ypage 315).
TireTirePress.Press.MonitorMonitorCurrently Unavaila‐Currently Unavaila‐bleble
Because there is interference from a strong source of radio waves, nosignals from the tire pressure sensors are detected. The tire pressuremonitor is temporarily malfunctioning.
XDrive on.The tire pressure monitor restarts automatically as soon as theproblem has been resolved.
TirePress. Sen‐TirePress. Sen‐sor(s) Missingsor(s) MissingThere is no signal from the tire pressure sensor of one or several tires.The pressure of the affected tire is not displayed in the multifunctiondisplay.
XHave the faulty tire pressure sensor replaced at a qualified special-ist workshop.
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Page 255 of 370
Display messagesPossible causes/consequences and P PSolutions
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 open or not fully closed and the transmission is inposition ^, \\or [.
A warning tone also sounds.
GWARNING
The vehicle may roll away.
There is a risk of an accident.
XShift the transmission to position ].
XSecure the vehicle against rolling away (Ypage 152).
XClose the driver's door completely.
Only Shift to 'P'Only Shift to 'P'whenwhenVehicleVehicleisisSta‐Sta‐tionarytionary
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 ].
ServiceServiceRequiredRequiredDoDoNot Shift GearsNot 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 transmission position ^, \\or ]is selected:
XSecure the vehicle against rolling away (Ypage 152).
XNotify a qualified specialist workshop or breakdown service.
ReversingReversingNotNotPossi‐Possi‐blebleServiceServiceRequiredRequiredYou cannot shift into transmission position ^due to a malfunction.
The 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 automatically shifts toposition \\.
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 152).
XNotify a qualified specialist workshop or breakdown service.
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Display messagesPossible causes/consequences and P PSolutions
Stop Vehicle LeaveStop Vehicle LeaveEngineEngineRunningRunningWaitWaitTransmission Cool‐Transmission Cool‐inging
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.
XLeave the engine running.
XWait until the display message disappears before pulling away.
eThe tailgate is open
GWARNING
When the engine is running, exhaust gases can enter the vehicle inte-rior if the tailgate is open.
There is a risk of poisoning.
XClose the tailgate.
fThe hood is open. A warning tone also sounds.
GWARNING
The open hood may block your view when the vehicle is in motion.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 152).
XClose the hood.
QAt least one door is open. A warning tone also sounds.
XClose all the doors.
o
Rear Left BackrestRear Left BackrestNot LatchedNot LatchedorRearRearRight Backrest NotRight Backrest NotLatchedLatched
Vehicle with through-loading feature in the rear bench seat:
The backrest in the rear is not engaged on the left-hand and/or right-hand side.
XPush the backrest back until it engages.
o
Rear Center Back‐Rear Center Back‐rest Not Engagedrest Not Engaged
Vehicle with through-loading facility in the rear compartment:
The center rear seat backrest is not engaged.
XPush the backrest back until it engages.
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Safety systems
Warning/indicatorlamp
Q QSignal type
Possible causes/consequences and P PSolutions
' M Q '(USA only), M(Canada only): the red brake system warning lamp is litwhile the engine is running.
A warning tone also sounds.
GWARNING
The brake boosting effect is malfunctioning and the braking characteristics may beaffected.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying attention to roadand traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 152).
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction display.
' M Q '(USA only), M(Canada only): the red brake system warning lamp lightsup while the engine is running.
A warning tone also sounds.
There is not enough brake fluid in the brake fluid reservoir.
GWARNING
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 to roadand traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 152).
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 running.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.
258Warning and indicator lamps in the instrument cluster
On-board computer and displays
Page 268 of 370
Tires
Warning/indicatorlamp
Q QSignal type
Possible causes/consequences and P PSolutions
w QThe yellow tire pressure monitor warning lamp (pressure loss/malfunction) is lit.
The tire pressure monitor has detected a loss of pressure in at least one of the tires.
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase
Rthey may wear excessively and/or unevenly, which may greatly impair tire trac-tion
Rthe driving characteristics, as well as steering and braking, may be greatlyimpaired
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking maneuvers. Payattention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 152).
XObserve the additional display messages in the multifunction display.
XCheck the tires and, if necessary, follow the instructions for a flat tire(Ypage 315).
XCheck the tire pressure (Ypage 339).
XIf necessary, correct the tire pressure.
w QThe yellow tire pressure monitor warning lamp (pressure loss/malfunction)flashes for approximately one minute and then remains lit.
The tire pressure monitor is malfunctioning.
GWARNING
The system is possibly unable to recognize or register low tire pressure.
There is a risk of an accident.
XObserve the additional display messages in the multifunction display.
XVisit a qualified specialist workshop immediately.
266Warning and indicator lamps in the instrument cluster
On-board computer and displays
Page 277 of 370
You can use additional options for enteringthe destination:
RFree destination search
The free destination search finds destinationsusing fragments of words.
RSelect the last destination
RSelect a contact
RSelect a POI
You can search for a POI by location, name ortelephone number.
RSelect destination on the map
REnter intermediate destination
You can map the route to the destinationyourself with up to four intermediate destina-tions.
RSelect destinations from Mercedes-BenzApps
RSelect geo-coordinates
Calculating the route
Prerequisite: the address has been entered andis in the menu.
XSelectStartStartorContinueContinue.The route is calculated with the selected routetype and the selected route options.
If route guidance has already been activated,a prompt will appear asking whether you wishto end the current route guidance.
XSelectYesYesorSet as Intermediate Des‐Set as Intermediate Des‐tinationtination.YesYescancels the current route guidance andstarts route calculation to the new destina-tion.
Set as Intermediate DestinationSet as Intermediate Destinationaddsthe new destination in addition to the existingdestination and opens the intermediate des-tinations list.
Connecting a mobile phone
Requirements
For telephony via the Bluetooth®interface, you
require at least one Bluetooth®-capable mobilephone depending on use ofone-telephonemodeortwo-telephone mode. The mobilephone must support Hands-Free Profile 1.0 orabove.
Intwo-telephone modeyou can use all thefunctions of the multimedia system with themain telephone. With theadditional tele-phone, you can receive incoming calls.
Multimedia system:
XSelectVehicleVehicle {System Set‐System Set‐tingstings {Activate BluetoothActivate Bluetooth.
XActivate Bluetooth® s.
Mobile phone:
XActivate Bluetooth®and, if necessary, Blue-
tooth®visibility for other devices (see themanufacturer's operating instructions).
The Bluetooth®device names for all of one man-ufacturer's products might be identical. Tomake it possible to clearly identify your mobilephone, change the device name (see the man-ufacturer's operating instructions).
If the mobile phone supports the PBAP (PhoneBookAccessProfile) and MAP (Message
AccessProfile) Bluetooth®profiles, the follow-ing information will be transmitted after youconnect:
RPhone book
RCall lists
RMessages
iFurther information on suitable mobilephones can be obtained on the Internet at:http://www.mercedes-benz.com/connect
iIn the USA, you can get in touch with theMercedes-Benz Customer Assistance Centeron 1-800-FOR-MERCedes (1-800-367-6372).
In Canada, you can get in touch with the Cus-tomer Relations Center on 1-800-387-0100.
Searching for and authorizing a mobile
phone
Before using your mobile phone with the multi-media system for the first time, you will need tosearch for the phone and then authorize (con-nect) it. Depending on the mobile phone, author-ization either takes place by means of SecureSimple Pairing or by entering a passkey. Themultimedia system automatically makes theprocedure that is relevant for your mobile phoneavailable. The mobile phone is always connec-ted automatically after authorization. Furtherinformation on using a mobile phone with the
Operating system275
Multimedia system
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