2019 MERCEDES-BENZ C CLASS immobilizer

ProblemPossible causes/consequences andPPSolutions
Vehicles without a panoramic slid‐ing sunroof:The sliding sunroof doesnot operate smoothly.
PushtheWbutton uptothe point ofresistance untilthe sliding sunroof is fully open.
PresstheWbuttonfor another second.
Closethe sliding sunroof.
Vehicles with a panoramic slidingsunroof:The sliding sunroof ortheroller sunblind does not operatesmoothly.
Pulland holdtheWbutton littlebylittle untilthe sliding sunroof is fully closed.
Pull and holdtheWbutton littlebylittle untiltheroller sunblind is fully closed.
Use automatic operationtofully open andthen closethe sliding sunroof.
Anti-theft protection
Function ofthe immobilizer
The immobilizer preventsyourvehicle from beingstarted withoutthe correct SmartKey.
The immobilizer is automatically activated whenthe ignition is switched off and deactivated whenthe ignition is switched on.
When leavingthevehicle, alwaystakethe Smart‐Key withyou and lockthevehicle. Anyone canstartthe engine if avalid SmartKeyhas been leftinsidethevehicle.
Intheeventthe engine cannotbestarted(yetthevehicle’sstarter battery ischarged),the system is not operational. Contact anauthorized Mercedes-Benz Center or call1-800-FOR-MERCedes (inthe USA) or1-800-387-0100(in Canada).
ATA(anti-theft alarmsystem)
Function oftheATAsystem
IftheATAsystem is armed, a visual and audiblealarm is triggered inthefollowing situations:
Rwhen a door is opened
Rwhenthe trunk lid is opened
Rwhenthe hood is opened
TheATAsystem is armed automatically afterapproximatelyten seconds inthefollowing situa‐tions:
Rafter lockingthevehicle withthe SmartKey
Rafter lockingthevehicle using KEYLESS-GO
88Opening and closing

Overview ............................................... 40PASSENGER AIRBAG indicator lamp .....44Protection ..............................................41Side airbag ............................................ 40Window curtain airbag ...........................40
AirflowSetting .................................................138
AIRMATIC..................................................197Setting .................................................19 8Suspension ..........................................197
AlarmseePanic alarm
Alarm systemseeATA (anti-theft alarm system)
All-wheel drivesee 4MATIC
AlternativerouteseeRoute
Ambient lightingSetting (multimedia system) ................128
AndroidAuto............................................316Connecting a mobile phone .................317Ending ..................................................318
Information ..........................................317Overview ..............................................316Sound settings .....................................317Transferredvehicle data ......................318
AnimalsPets inthevehicle ................................. 62
Anti-lock braking systemsee ABS (Anti-lock Braking System)
Anti-skidchainssee Snowchains
Anti-theft alarmsystemseeATA (anti-theft alarm system)
Anti-theft protectionImmobilizer ............................................ 88
Anti-theft protectionseeATA (anti-theft alarm system)
Anticipatory occupant protection
see PRE-SAFE®(anticipatory occu‐pant protection)
see PRE-SAFE®PLUS (anticipatoryoccupant protection plus)
Apple CarPlay™........................................315
Connecting an iPhone®........................315
Ending ..................................................316Notes ...................................................315Overview ..............................................315Sound settings .....................................316Transferredvehicle data ......................318
AshtrayFront center console ............................116Rear passenger compartment ..............11 7Using ....................................................11 6
Assistance systemssee Driving safety system
Assistant displayMenu (on-board computer) .................. 231
ASSYST PLUS........................................... 351Battery disconnection periods .............352Displayingthe service due date ........... 351Function/notes .................................... 351Regular maintenancework.................. 351Special servicerequirements .............. 351
ATA(anti-theft alarmsystem).................. 88Deactivatingthe alarm .......................... 89Function ................................................ 88
ATTENTION ASSIST..........................215,217Function ...............................................215
Index495

Rear passenger compartment(adjusting) .............................................97
Head-up Display...................................... 237Adjusting display elements (on-boardcomputer) ............................................ 237Adjustingthe brightness (on-boardcomputer) ............................................ 237Function .............................................. 237Menu (on-board computer) .................. 237Settingthe position (on-board com‐puter) .................................................. 237Switching on/off ................................. 238
Headliner (care)....................................... 365
Heatingsee Climate control
High beamSwitching on/off .................................124
High-beam flasher...................................124
High-beam headlampsAdaptive Highbeam Assist ...................125Replacing bulbs ...................................130
Hillstart assist........................................19 5
HOLD function.........................................19 5Function/notes ...................................19 5Switching on/off .................................19 5
HoodOpening/closing ................................. 352
Hookingthe luggage net........................109
HotspotSetting up (Wi-Fi) ................................. 267
I
Identification plateEngine .................................................423Refrigerant .......................................... 430Vehicle ................................................ 423
IgnitionSwitching on (Start/Stop button) ........14 4
Ignitionkeysee SmartKey
Immobilizer................................................ 88
Indicator lampsseeWarning/indicator lamps
Individual drive programConfiguring ..........................................15 3
Selecting .............................................15 3
Insiderearview mirrorsee Exterior mirrors
Inspectionsee ASSYSTPLUS
Instrument clustersee Instrument Display
Instrument cluster lighting.................... 231
Instrument Display................................. 226Adjustingthe lighting ........................... 231Function/notes ................................... 226Instrument cluster .................................10Settingthe additionalvaluerange ....... 229Warning/indicator lamps .....................479
Intelligent Light SystemAdaptive Highbeam Assist ...................125Cornering light function .......................12 5
Interior lighting........................................127Ambient lighting ..................................12 8Reading light ........................................127Setting .................................................127Switch-off delaytime ...........................12 8
Index509