warning light MERCEDES-BENZ S CLASS 2019 Repair Manual

Warning/indicator lampPossible causes/consequences andPPSolutions
or
#Exitthevehicle andkeep a safe distance from it untilthe engine has cooled down.
#Checkthe coolant level (→page 401).
#Make surethatthe air supplytotheradiator is not obstructed.
#Avoiding high loads onthe engine, drivetothe nearestqualified specialistworkshop. In doing so, ensurethatthecoolanttemperature displayremains belowthered area.
Tires
Warning/indicator lampPossible causes/consequences andPPSolutions
w
Tirepressure monitoringsystemwarning lamp lightsup
Theyellow tire pressure monitoring systemwarning lamp (pressure loss/malfunction) is lit.
The tire pressure monitoring system has detected tire pressure loss in at least one ofthe tires.
&WARNINGRisk of an accident duetoinsufficient tire pressure
Tirepressuresthat aretoo low posethefollowing hazards:
RThe tires may burst, especially asthe load andvehicle speed increase.
RThe tires maywearexcessively and/or unevenly,which may greatly impair tire traction.
RThe drivingcharacteristics, aswell assteering and braking, may be greatly impaired.
You couldthen lose control ofthevehicle.
Display messages andwarning/indicator lamps533

Front passenger headrestraintInstalling/removing (chauffeurmode) ..................................................101
Front passenger seatAdjusting fromthe driver's seat ............ 95Adjusting fromtherear passengercompartment ........................................ 95Installing/removingthe headrestraint (chauffeur mode) ...................101
Fuel...........................................................470Additives ..............................................470E10 ...................................................... 469Fuelreserve.........................................470Gasoline .............................................. 469Quality (gasoline) ................................ 469Refueling .............................................180sulfur content ...................................... 469Tank content ........................................470
Fuel consumptionOn-board computer .............................257
Function seatsee Door control panel
Function seat (rear passenger com‐partment)see Seat (rear passenger compartment)
Fuse insertseeFuses
Fuses........................................................ 430Beforereplacing a fuse ........................ 430Dashboard fuse box ............................ 432Fuse assignment diagram ...................430Fuse box inthe engine compartment .. 431Fuse box inthe front-passengerfoot‐well ...................................................... 432Fuse box inthe trunk ........................... 433Notes .................................................. 430
FusesseeFuses
G
Garage door openerClearingthe memory ...........................187Opening or closingthe door ................186Programming buttons ..........................184Radio equipment approval numbers ....187Resolving problems .............................186
Synchronizingtherolling code .............185
Gasstation searchStarting automatic search................... 305Switching automatic search on/off ......311Using automatic search.......................311
Gasoline...................................................469
Gearshiftrecommendation....................17 9
Genuine parts............................................19
Glassroofsee MAGIC SKYCONTROL
Glide mode...............................................180
GloveboxAirvent ................................................16 6Locking/unlocking ..............................12 3
H
Handbrakesee Electric parking brake
Handlingcharacteristics (unusual)....... 434
HANDS-FREEACCESS................................73
Hazardwarning lights.............................147
552Index

Selecting ..............................................176
Insiderearview mirrorsee Exterior mirrors
Inspectionsee ASSYSTPLUS
Instrument clustersee Instrument Display
Instrument cluster lighting.................... 255
Instrument Display.................................. 251Adjustingthe lighting .......................... 255Function/notes .................................... 251Instrument cluster ................................... 8Settingthe additionalvaluerange ....... 254Warning/indicator lamps .................... 523
Intelligent Light SystemAdaptive Highbeam Assist ...................148Cornering light function .......................14 8
Interior lighting.......................................150Ambient lighting ..................................15 0Reading light ........................................15 0Setting .................................................15 0Switch-off delaytime ...........................151
Intermediate destinationCalculating aroute with intermediatedestinations ........................................ 306Entering ............................................... 306Modifying ............................................ 306Starting an automaticgasstationsearch................................................. 305Startingthe automatic servicesta‐tion search...........................................312
InternetCalling up aweb page .........................350Closingthe browser ............................352Deleting a bookmark........................... 352Deleting browser data .........................352Managing bookmarks .......................... 352
Internet connectionCommunication module function ........ 349Connectionstatus ...............................349Displayingthe connectionstatus ........ 350Establishing .........................................349Information .......................................... 348Restrictions ......................................... 348
InternetradioCalling up ............................................ 352Deletingstations .................................353
Logging out ......................................... 354Overview ............................................. 353Registering .......................................... 354Savingstations .................................... 353Selecting and connectingtoastation.............................................................353Selectingstream .................................354Setting options .................................... 354Terms of use ........................................354
IonizationActivating/deactivating (multimediasystem) ................................................16 3
iPhone®
see Apple CarPlay™see Mercedes-Benz Link
J
JackStorage location ..................................457
Jump-start connection............................423General notes ...................................... 421
554Index

K
KEYLESS-GOLockingthevehicle ................................67Problem .................................................68Unlocking setting .................................. 63Unlockingthevehicle ............................67
Kickdown.................................................180Using ...................................................180
Knee airbag................................................ 38
L
Labeling (tires)seeTirelabeling
Lampsee Interior lighting
Lamps (Instrument Display)seeWarning/indicator lamps
Lane detection (automatic)seeActive LaneKeeping Assist
LaneKeeping AssistseeActive LaneKeeping Assist
Language.................................................293Notes .................................................. 293Setting .................................................293
LATCH-type (ISOFIX)child seat secur‐ing systemInstalling ................................................ 53
Level control systemsee AIRMATICsee MAGICBODYCONTROL
Light switchOverview .............................................145
Lightingsee Interior lightingsee Lights
Lights........................................................14 5Adaptive Highbeam Assist ...................148Adjustingthe instrument lighting ........ 255Automatic driving lights .......................14 6Combination switch.............................14 6Cornering light function .......................14 8Hazardwarning lights ..........................147High beam ...........................................14 6High-beamflasher ...............................146Light switch .........................................14 5
Low-beam headlamps .........................145Parking lights .......................................145Rearfog lamp ......................................14 5Responsibilityfor lighting systems ......14 5Settingtheexterior lighting switch-off delay time ......................................14 9Settingthe surround lighting ...............149Standing lights .....................................145Turnsignals .........................................14 6
LimitedWarrantyVehicle .................................................. 25
LiveTraffic InformationDisplaying subscription information .....318Displayingthe traffic map ....................319Displaying traffic incidents .................. 320Extending a subscription ......................318Issuing hazard alerts ........................... 320
Load index (tires)....................................449
Load-bearing capacity (tires).................449
LoadingDefinitions ...........................................451Notes ...................................................121Roof carrier .........................................12 9Stowage space underthe trunkfloor ...12 9
Index555

Head-up Display menu .........................261Media menu ........................................260Menu designs ...................................... 254Menuoverview .................................... 252Multifunction display ...........................255Navigation system menu ..................... 258Operating ............................................ 252Radio menu .........................................259Service menu ...................................... 256Telephone menu .................................. 260Trip menu ............................................ 257
On-boarddiagnostics interfacesee Diagnostics connection
Open-source software.............................. 29
Openingthe trunk lid usingyourfootHANDS-FREEACCESS ...........................73
OperatingfluidsAdditives (fuel) .....................................470Brakefluid ...........................................472Coolant (engine) ..................................472Engine oil .............................................470Fuel (gasoline) .....................................469Notes .................................................. 468Refrigerant (air conditioning system) ...474
Windshieldwasherfluid .......................473
Operating safetyDeclaration of conformity (wirelessvehicle components) ............................. 23Information ............................................ 22
Operating systemsee On-board computer
Operator's ManualVehicle equipment ................................. 20
Operator's Manual (digital).......................18
Overhead control panelMaking calls (Mercedes me connect).............................................................344Overview ...............................................10
P
Paint code................................................ 466
Paintwork (cleaning instructions).........405
Panel heatingSetting .................................................112
Panic alarm................................................ 63Activating/deactivating ......................... 63
Panoramic sliding sunroofsee Sliding sunroof
Parcel net hooks......................................12 6
ParkpositionInserting ..............................................178Selecting automatically........................178
Parkingsee Electric parking brake
Parking aidseeParking AssistPARKTRONIC
Parking AssistPARKTRONIC.................. 222Activating ............................................ 225Adjustingwarningtones ...................... 225Function .............................................. 222Side impact protection ........................ 223Switching off ....................................... 225System limitations ...............................222
Parking assistance systemsseeActiveParking Assist
Parking brakesee Electric parking brake
Parkingfor anextended period..............19 0
Parking lights...........................................145
560Index