2019 MERCEDES-BENZ E CLASS key battery

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
Indicator lamp1flashes whentheATA systemis armed.
TheATA system is deactivated automatically inthefollowing situations:
Rafter unlockingthevehicle withthe SmartKey
Rafter pressingthestart/stop button withtheSmartKeyinthestowage compartment(→page139)
86Opening andclosing

Driving
Notes on Mercedes-AMGvehicles
Observethe notes onthefollowingtopics intheSupplement. Otherwise,you may notrecognizedangers.
RAMGPerformanceexhaust system
RAMG adaptive sport suspension system
Switching onthe power supplyor ignitionusingthestart/stop button
\nWARNINGRisk of accident and injuryduetochildren left unattended inthevehicle
Ifchildren are left unattended inthevehicle,theycould:
Ropen doors,thereby endangeringotherpersons orroad users.
Rget out ofthevehicle and be hitbyoncoming traffic.
Roperate vehicle equipment and becometrapped,forexample.
In addition,children could also setthevehi‐cle in motion,forexample,by:
Rreleasingthe parking brake.
Rshiftingthe automatic transmission out ofpark position].
Rstartingthe engine
Never leavechildren and animals unat‐tended inthevehicle.
When leavingthevehicle, alwaystakethe SmartKeywithyou and lockthevehicle.
Keepthe SmartKeyout ofthereach ofchildren.
\nDANGERRisk offatal injuries duetoexhaustgases
Combustion engines emit poisonousexhaustgases such as carbon monoxide. Inhalingtheseexhaustgases is hazardoustohealthand can leadtopoisoning.
Never leavethe enginerunning in anenclosed space without sufficientventi‐lation.
\nWARNINGRisk offirecausedbyflam‐mable material ontheexhaust system
Flammable materials brought inbyeither ani‐mals or environmental influences may igniteiftheycome into contact withhot parts ofthe engine orexhaust system.
Therefore,checkregularlythatthereare noflammable materials intheengine compartment or ontheexhaustsystem.
Requirements:RThe SmartKeyis located inthevehicle andthe SmartKeybattery is not discharged.
13 8Driving and parking

Toswitch onthe power supply:press but‐ton1once.You can activatethe windshield wipers,forexample.
The power supplyis switched off again ifthefol‐lowing conditions are met:
RYou openthe driver's door
RYou press button1twice.
Toswitch onthe ignition:press button1twice.The indicator lamps inthe instrument clusterlight up.
The ignition is switched off again if one ofthefollowing conditions is met:
RYou do notstartthevehicle within15minutes andthe transmission is in posi‐tion]orthe electric parking brake isapplied.
RYou press button1once.
Startingthevehicle
Startingthevehicle withthestart/stop but‐ton
Requirements:RThe SmartKeyis located inthevehicle andthe SmartKeybattery is not discharged.
Shiftthe transmissiontoposition]or\\.
Depressthe brake pedal and press button1once.
Ifthevehicle does notstart:switch off non-essential consumers and press button1once.
Ifthevehiclestill does notstart andthePlace the Key in the Marked Space SeeOperator's Manualdisplay message alsoappears inthe multifunction display:startthevehicle in emergency operation mode.
You can switchoffthe engine while drivingbypressing button1for aboutthree seconds. Besuretoobservethe safety notes under "Drivingtips".
Startingthevehicle in emergency operationmodeIfthevehicle does notstart andthePlace theKey in the Marked Space See Operator's Manualmessage appears inthe multifunction display,you canstartthevehicle in emergency operationmode.
Driving and parking13 9

Make surethat marked space2is empty.
RemoveSmartKey1fromthekeyring.
Place SmartKey1in marked space2.Thevehicle willstart after a short time.
IfyouremoveSmartKey1from markedspace2the engine continuesrunning.Forfurthervehiclestarts however,SmartKey1must be located in marked space2duringthe entire journey.
Havethe SmartKey1checked at aqualifiedspecialistworkshop.
Ifthevehicle does notstart:
Place SmartKey1in marked space2andleaveitthere.
Depressthe brake pedal andstartthevehicleusingthestart/stop button.
You can also switchonthe power supplyorthe ignition withthestart/stop button.
Startingthevehicle viaRemoteOnline serv‐ices
Cooling or heatingthevehicle interior beforecommencingyour journey
This function is notavailable in all countries.
Ifyoustartthevehicle viayour smartphone,thepreviously selected air conditioning adjustmentis active.
Ensurethefollowing beforestartingthe engine:
RThe legalstipulations inthe area whereyourvehicle is parked allow enginestarting viasmartphone.
RIt is safetostart andrunthe engine whereyourvehicle is parked.
RThe fueltank is sufficientlyfilled.
RThestarter battery is sufficientlycharged.
You can also setthetemperature withyoursmartphone. Information on Mercedes meconnect andother services: http://www.mercedes.meThis function is notavailablefor all models.
Chargingthe batterybefore commencingyour journey
This function is notavailable in all countries.
RIfthevehicle battery is discharged,youreceivea message onyour smartphone.
RYou canthenstartthevehicle withthesmartphonetochargethe battery.
RThevehicle is automatically switched offafterten minutes.
Ensurethefollowing beforestartingthe engine:
RThe legalstipulations inthe area whereyourvehicle is parked allow enginestarting viasmartphone.
RIt is safetostart andrunthe engine whereyourvehicle is parked.
14 0Driving and parking

Display messagesPossible causes/consequences andPPSolutions
Á
Replace Key Battery
*The SmartKeybattery is discharged.
Replacethe battery (→page64).
Á
Place the Key in theMarked Space See Opera-tor's Manual
*The SmartKeydetection function is malfunctioning.
Changethe location ofthe SmartKeyinthevehicle.
Startthevehicle withthe SmartKeyinthe marked space (→page139).
Á
Don't Forget Your Key
*Awarningtone will also sound. This messageremindsyoutotakeyour SmartKeywithyou whenyou leavethevehicle.
466Display messages andwarning/indicator lamps

B
Bag hook..................................................107
BAS (Brake Assist System).....................166
BatteryCharging (RemoteOnline) ....................14 0SmartKey...............................................64
Batterysee Battery (vehicle)
Battery (vehicle)......................................375Charging ..............................................374Charging (RemoteOnline) ....................14 0Notes ...................................................370Notes (starting assistance andcharging) .............................................372Replacing .............................................375Starting assistance ..............................374
Beltsee Seat belt
Blind Spot Assist......................................212Function ...............................................212Switching on/off .................................215System limitations ...............................212
Blowersee Climatecontrol
Bluetooth®............................................... 259Activating/deactivating .......................259Information .......................................... 259
Bluetooth®audioActivating ............................................ 335De-authorizing (de-registering)thedevice .................................................. 335Information .......................................... 333Overview .............................................333Searchingfor a track ........................... 335Searchingfor and authorizingthedevice .................................................. 334Selecting a media player .....................335Switching device via NFC .................... 335
Brake Assist SystemseeBAS (Brake AssistSystem)
BrakefluidNotes .................................................. 422
Brakeforce distributionEBD (electronic brakeforce distribu‐tion) .....................................................17 0
BrakesABS (Anti-lock Braking System) ...........16 6Active Brake Assist..............................17 0BAS (Brake AssistSystem) ..................16 6Driving tips ..........................................14 2EBD (electronic brakeforce distribu‐tion) .....................................................17 0HOLD function .....................................189Limited braking effect (salt-treatedroads) ..................................................14 2New/replaced brakepads/brakediscs ....................................................141Notes on breaking-in a newvehicle .....141
Braking assistanceseeBAS (Brake AssistSystem)
BreakdownChanging a wheel ................................ 409Overview ofthe help functions ..............16Roadside Assistance ..............................21Tow-starting ........................................ 380Towingaway........................................377Transportingthevehicle ......................378
Breakdownsee Flat tire
Index491

Setting summer time.............................. 258
Settingthe dateformat.......................... 258
Settingthe distance unit........................ 263
Settingthe map scalesee Map
Shift paddlesseeSteering wheel paddle shifters
ShiftinggearsGearshiftrecommendation ..................15 2
Short messagesseeText messages
Side airbag.................................................39
Side impact protection...........................194
Side windows.............................................77Child safety lock intherearpassenger compartment .......................60Closing ..................................................77Closing usingthe SmartKey................... 79Convenience closingfeature .................79Convenience opening ............................ 79Opening .................................................77Opening withthe SmartKey................... 79Problem ................................................. 80
Size designation (tires)........................... 400
Sliding sunroof...........................................81Automatic functions ..............................84Closing ..................................................81Closing usingthe SmartKey................... 79Opening .................................................81Opening withthe SmartKey................... 79Problem .................................................84Rain closing function .............................84
SmartKey................................................... 62Acoustic lockingverification signal ....... 63Battery ..................................................64Energy consumption .............................. 63Features ................................................ 62Keyring attachment ..............................64Mechanicalkey ......................................64Overview ............................................... 62Panic alarm ........................................... 63Problem ................................................. 65Unlocking setting .................................. 63
SmartKey functionsDeactivating .......................................... 63
Smartphonesee AndroidAuto
see Apple CarPlay™see Mercedes-Benz LinkseeTelephone
Snowchains............................................ 385
Socket (12 V)Front passengerfootwell ......................11 3Rear passenger compartment ..............11 3
Software update...................................... 266Important system updates ...................267Information .......................................... 266Performing .......................................... 266
Sound
PRE-SAFE®Sound ................................. 46Wheels and tires ..................................384
Sound
see Burmester®surround sound systemsee Sound settings
Sound settings........................................344Adjustingthe balance/fader ............... 344Adjusting treble, mid-range and basssettings ............................................... 344Automaticvolume adjustment .............344Calls upthe sound menu ..................... 344Information .......................................... 344
Index515