tire pressure MERCEDES-BENZ C CLASS 2019 Service Manual

Display messagesPossible causes/consequences andPPSolutions
Drive more slowly.
Decrease Speed*At least one tire isoverheating. The affected tires are displayed inred.Attemperatures closetothe limitvalue,thetires are displayed inyellow.
\nWARNINGRisk of an accident from driving withoverheated tires
Overheated tires may burst, particularly at high speeds.
Reduce speed sothatthe tires cool down.
Reduce speed sothatthe tires cool down.
Check Tire Pressure ThenRestart Run Flat Indicator
*Canada only:
The tire pressure losswarning systemgenerated a displaymessageand has not beenrestarted since.
Whenthe tire pressure is correct,restartthe tire pressure losswarning system (page 398).
Run Flat Indicator Inopera-tive
*Canada only:
The tire pressure losswarning system is malfunctioning.
Visit aqualified specialistworkshop.
47 0Displaymessages andwarning/indicator lamps

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.
\nWARNINGRisk 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.
Observetherecommended tire pressure.
Adjustthe tire pressure if necessary.
Stopthevehicle, paying attentiontoroad and traffic conditions.
Checkthe tire pressure andthe tires.
w
Theyellow tire pressure monitoring systemwarning lamp (pressure loss/malfunction)flashesfor approximatelyoneminute andthenremains lit.
The tire pressuremonitoring system is defective.
490Display messages andwarning/indicator lamps

Warning/indicator lampPossible causes/consequences andPPSolutions
Tirepressure monitoringsystemwarning lampflashes
\nWARNINGThereis arisk of an accident ifthe tire pressure monitoring system is malfunctioning
Ifthe tire pressure monitoring system is malfunctioning, it is not abletoissue awarning ifthere is pressure loss inone or more ofthe tires.
Underinflated tires may,forexample, impairthe driving,steering and brakingcharacteristics.
Havethe tire pressure monitoring systemchecked at aqualified specialistworkshop.
Visit aqualified specialistworkshop.
Vehicle
Warning/indicator lampPossible causes/consequences andPPSolutions

Active Service System PLUSsee ASSYSTPLUS
Active Speed Limit Assist.......................187Display.................................................187Function ..............................................187
ActiveSteering Assist.............................189Activating/deactivating .......................191Active EmergencyStop Assist .............193Active Lane Change Assist...................191Displays inthe Instrument Display ......19 3Function ..............................................189System limitations ...............................189
Adaptive cruise controlseeActive Distance AssistDISTRONIC
Adaptive Highbeam AssistFunction ..............................................12 5Switching on/off .................................12 6
AdditionalvaluerangeSetting display content ........................ 229
Additives.................................................. 427Engine oil ............................................. 427Fuel ..................................................... 427
Additives (engine oil)seeAdditives
Additives (fuel)seeFuel
Address booksee Contacts
Adjusting the balance/fader
Burmester®surround sound system ... 350
Adjusting the headlamprange...............12 3
Adjusting the soundfocus
Burmester®surround sound system ... 350
Adjusting treble, mid-range and basssettings
Burmester®surround sound system ... 350
ADS PLUS damping systemsee AIRMATIC
After-sales service centersee ASSYST PLUS
Air bagReduced protection ...............................42
Air conditioning systemsee Climate control
Air distributionSetting .................................................138
Air freshener systemseePerfume atomizer
Air inletsee Air-water duct
Air pressureseeTirepressure
Air suspensionsee AIRMATIC
Airvents...................................................14 3Adjusting (front) ..................................14 3Adjusting (rear) ....................................14 3
Airventssee Airvents
Air-recirculation mode.............................141
Air-water duct.......................................... 358Keeping free ........................................358
Airbag.........................................................40Activation .............................................. 34Front airbag (driver, front passenger) ....40Installation locations .............................40Knee airbag ........................................... 40
494Index

CheckTirePressure Soon...................466
CheckTirePressure ThenRestart
Run Flat Indicator................................470
wCheckTires................................. 467

Securing ..............................................104
Lumbar supportseeLumbar support (4-way)
Lumbar support (4-way)...........................95
M
MaintenanceMenu (on-boardcomputer) .................. 231Vehicle .................................................. 23
Maintenancesee ASSYST PLUS
MalfunctionRestraint system ................................... 34
Malfunction messagesee Display message
Map...........................................294, 296, 297Avoiding an area ..................................299Avoiding an area (overview) .................299Changing an area ................................ 299Deleting an area .................................. 300Displayingthe compass ....................... 301Displayingthe mapversion .................298
Displayingthe next intersectingstreet................................................... 298Displayingthe satellite map ................. 301Displayingthe traffic map ...................294Displayingweather information ...........301Map data ............................................. 300Moving .................................................297Overview ............................................. 296Selecting POI symbols .........................298Selectingtext information ................... 298Selectingthe map orientation .............297Settingthe map scale .......................... 297Settingthe map scale automatically ....301Updating .............................................300
Map and compassOverview ............................................. 296
Massage programOverview ............................................... 98Resettingthe settings ............................98
Massage programsSelectingthe front seats ....................... 98
Massage settingsResetting ............................................... 98
Mattefinish (cleaning instructions).......361
Maximum loadrating.............................. 405
Maximum permissible loadCalculationexample ............................ 401Determining ........................................ 400
Maximum tire pressure.......................... 406
MechanicalkeyInserting/removing ............................... 66
MediaMenu (on-board computer) .................. 235Searching ............................................ 336
Media displayNotes ................................................... 254
Media InterfaceActivating ............................................ 337Information .......................................... 336Overview .............................................338
Media modeActivating ............................................ 331
Media playbackOperating (on-board computer) ........... 235
Media searchStarting ...............................................336
512Index

Technical dataInformation .......................................... 421Tirepressure monitor .......................... 397Vehicle identification plate .................. 423
Telephone........................................ 236, 303Activating functions during a call ........ 308Call andringtonevolume .....................308Calls with several participants .............308Connecting a mobile phone (NearField Communication (NFC)) ...............307Connecting a mobile phone (Pass‐key) .....................................................304Connecting a mobile phone (SecureSimplePairing) .................................... 304De-authorizing a mobile phone ............ 306Disconnecting a mobile phone ............ 306Importing contacts ...............................311Importing contacts (overview) .............310Incoming call during anexisting call .... 309Information .......................................... 304Interchanging mobile phones .............. 306Menu (on-board computer) .................. 236Mobile phonevoicerecognition .......... 308Notes .................................................. 302Operating modes ................................. 304
Reception and transmissionvolume .... 307Switching mobile phones (Near FieldCommunication (NFC)) ........................ 307Telephone menuoverview ...................303Telephone operation ............................ 308Using Near Field Communication(NFC) ...................................................307Voice commands (Voice Control Sys‐tem) .....................................................24 6Wirelesscharging (mobile phone) ........12 0
Telephonesee Secondtelephone
Telephone numberDialing (on-board computer) ................ 236
Telephony operating modes
Bluetooth®Telephony .......................... 304
Telephony operating modessee Secondtelephone
Temperature............................................13 8
Temperaturegrade.................................. 403
Text messages.........................................312Calling a message sender ....................313Changingfolders ..................................314
Composing ...........................................313Configuringthe displayedtext mes‐sages ...................................................312Deleting ...............................................314Drafts ..................................................314Notes ...................................................312Options ................................................314Outbox .................................................314Read-aloud function .............................313Reading ................................................313Replying ...............................................313Sending ................................................313Voice commands (Voice Control Sys‐tem) ..................................................... 250
Through-loadingfeaturesee Seat
TimeManual time setting ............................. 265Setting summer time ........................... 264Settingthe time and date automati‐cally ..................................................... 264Settingthe time zone .......................... 264Settingthe time/dateformat .............. 265
TIN (Tire IdentificationNumber)............404
Index523

Tireand Loading Information placard... 399
Tire characteristics................................. 406
Tireinflation compressorsee TIREFIT kit
Tireinformation table.............................399
Tirelabeling.............................................403Characteristics .................................... 406DOT,TireIdentificationNumber (TIN).............................................................404Load index ...........................................406Load-bearing capacity ......................... 406Maximum tire load .............................. 405Maximum tire pressure ....................... 406Overview ............................................. 403Speedrating ........................................ 406Temperature grade .............................. 403TireQuality Grading ............................. 403Tiresize designation ............................406Tractiongrade .....................................403Treadwear grade .................................403
Tireload (maximum)...............................405
Tirepressure................................... 393, 394Checking (manually) ............................ 394
Checking (tire pressure monitoringsystem) ............................................... 396Maximum ............................................ 406Notes .................................................. 392Restartingthe tire pressure losswarning system ................................... 398Restartingthe tire pressure monitor‐ing system ...........................................397Tirepressure losswarning system(function) ............................................. 398Tirepressure monitoring system(function) ............................................. 395Tirepressuretable .............................. 393TIREFIT kit ............................................371
Tirepressure losswarning systemFunction .............................................. 398Restarting ............................................ 398
Tirepressure monitorRestarting ............................................ 397Technical data..................................... 397
Tire pressure monitoring systemCheckingthe tire pressure .................. 396Checkingthe tiretemperature ............ 396Function .............................................. 395
Tire pressure table.................................. 393
Tire Quality Grading................................ 403
TiretemperatureChecking (tire pressure monitoringsystem) ............................................... 396Tirepressure monitoring system(function) ............................................. 395
Tiretread................................................. 390
Tire-changetool kitOverview ..............................................414
TIREFIT kit................................................371Storage location ..................................371Using ...................................................371
TiresChanging hub caps ..............................416Characteristics .................................... 406Checking .............................................390Checkingthe tire pressure (man‐ually) ....................................................394Checkingthe tire pressure (tire pres‐sure monitoring system) ......................396Definitions ...........................................409DOT,TireIdentificationNumber (TIN).............................................................404
524Index

Flat tire ................................................370Installing ..............................................419Load index ........................................... 406Load-bearing capacity ......................... 406Maximum tire load .............................. 405Maximum tire pressure ....................... 406MOExtended tires ................................370Noise ...................................................390Notes on installing ...............................411Overview of tire labeling ......................403Removing .............................................41 8Replacing ......................................411,41 5Restartingthe tire pressure losswarning system ................................... 398Restartingthe tire pressure monitor‐ing system ...........................................397Rotating ...............................................414Selection ..............................................411Snowchains ........................................ 391Speedrating ........................................ 406Storing .................................................414Temperature grade .............................. 403Tireand Loading Information placard.............................................................399Tirepressure (notes) ........................... 392
Tirepressure losswarning system(function) ............................................. 398Tirepressure monitoring system(function) ............................................. 395Tirepressuretable .............................. 393TireQuality Grading ............................. 403Tiresize designation ............................406TIREFIT kit ............................................371Tractiongrade .....................................403Treadwear grade .................................403Unusual handlingcharacteristics ........ 390
ToolseeVehicletool kit
TopTether.................................................. 56
Total distance.......................................... 232Displaying ............................................ 232
Touch Control.......................................... 255On-board computer ............................. 228Operating ............................................ 255Settingthe sensitivity .......................... 256
Touchpad.................................................. 256Activating/deactivating haptic oper‐ationfeedback .................................... 258Operating ............................................ 256
Readingthe handwritingrecognitionaloud ................................................... 257Selecting astation and track ...............258Settingthe sensitivity .......................... 257Switching on/off ................................. 256
Tow-bar system.......................................225
Tow-starting............................................. 386
Towingaway............................................ 382
TowingeyeInstalling .............................................. 385Storage location ..................................385
Towing methods...................................... 381
TrackSelecting (audio mode) ....................... 333
Tractiongrade......................................... 403
Traffic information.................................. 293Displayingthe traffic map ...................294Displaying traffic incidents .................. 295Extending a LiveTraffic Informationsubscription ......................................... 294Issuing hazardwarnings ...................... 295LiveTraffic Information ........................ 294Overview ............................................. 293
Index525

Temperature grade .............................. 403Tireand Loading Information placard.............................................................399Tirecharacteristics .............................. 406Tirepressure (notes) ........................... 392Tirepressure losswarning system(function) ............................................. 398Tirepressure monitoring system(function) ............................................. 395Tirepressuretable .............................. 393TireQuality Grading ............................. 403Tiresize designation ............................406TIREFIT kit ............................................371Tractiongrade .....................................403Treadwear grade .................................403Unusual handlingcharacteristics ........ 390
Wi-Fi.........................................................266Overview ............................................. 266Setting ................................................. 266Setting up a hotspot ............................ 267
Window curtain airbag............................. 40
Windowssee Side windows
Windows(Care).......................................364
Windshield.......................................132,13 8Defrosting ............................................13 8Replacingthe wiper blades ..................13 2
WindshieldseeWindshield
Windshieldwasher fluid.........................429Notes .................................................. 429
Windshieldwasher systemTopping up ...........................................358
Windshield wipersActivating/deactivating .......................132Replacingthe wiper blades ..................13 2
Winter operationSnowchains ........................................ 391
Wiper bladesCare.................................................... 364Replacing .............................................132
WirelesschargingFunction/notes ....................................11 9Mobile phone .......................................12 0
Wirelessvehicle componentsDeclaration of conformity ...................... 25
Workout programOverview ............................................... 98
Workshopsee Qualified specialistworkshop
530Index