2019 MERCEDES-BENZ S CLASS keyless

Ifyou do not openthevehicle within approx‐imately 40 seconds after unlocking:
RThevehicle is locked again
RAnti-theft protection isreactivated
Do notkeepthe SmartKeytogether with elec‐tronic devices or metal objects. This can affectthe SmartKey's functionality.
Do notkeepthe SmartKeyinthetemperature-controlled cup holder. Otherwise,the SmartKeywill not bereliably detected.
%If batterycheck lamp2does not light upafter pressingthe6or7button,thebattery is discharged.
Activating/deactivating the acoustic lockingverification signal
Multimedia system:
,Vehicle.îVehicle Set-
tings.Acoustic Lock
#Activatesor deactivateSthe function.
Activating/deactivating the panic alarm
Requirements:RThe ignition is switched off
%The panic alarm function is onlyavailable incertain countries.
#Toactivate:press button1for approx‐imatelyone second.A visual and audible alarm is triggered.#Todeactivate:briefly press button1again.
or
#Pressthestart/stop button onthe cockpit(the SmartKeyis insidethevehicle).
Changingthe unlocking settings
Possible unlocking functions ofthe SmartKey:
RCentral unlocking
RUnlockingthe driver's door and fuelfillerflap
#Toswitch between settings:pressthe6and7buttons simultaneouslyforapproximately six seconds untilthe batterycheck lampflashes twice.
Ifthe unlocking functionforthe driver's doorand fuelfillerflap has been selected:
RPressingthe6button a second time cen‐trally unlocksthevehicle
RVehicles with KEYLESS-GO:Ifyoutouchthe inner surface ofthe door handle onthedriver's door, onlythe driver's door and fuelfillerflap are unlocked.
Deactivatingthe SmartKeyfunctions
Ifyou do not usethevehicle or a SmartKey foranextended period of time,you canreducetheenergy consumption oftherespective Smart‐
Opening and closing63

Ifyou openthe trunk lid from outside,the trunklid is automatically unlocked.
Problems with KEYLESS-GO
ProblemPossible causes/consequences andPPSolutions
You can no longer lock or unlockthevehicle using KEYLESS-GO.Possible causes are:
RThe SmartKeybattery isweak or discharged.
RThere is interference from a powerfulradio signal source.
RThe SmartKeyis defective.
#Checkthe battery usingthe batterycheck lamp andreplace if necessary (→page64).
#Usethe mechanicalkeytolock or unlockthevehicle (→page64).
#Havethevehicle and SmartKeychecked at aqualified specialistworkshop.
Switchingthe automatic lockingfeatureon/off
Thevehicle is locked automatically whentheignition is switched on andthe wheels are turn‐ingfasterthanwalking pace.
68Opening and closing

When makingthe kicking movement, make surethatyourfeetarefirmly onthe ground,other‐wiseyou could loseyour balance, e.g. on ice.
Requirements:
RThe SmartKeyis behindthevehicle.
RStand at least12in (30 cm)awayfromthevehicle while performingthe kicking move‐ment.
RDo not come into contact withthe bumperwhile makingthe kicking movement.
RDo not carryoutthe kicking movementtooslowly.
RThe kicking movement must betowardsthevehicle and back again.
1Sensor detectionrange
If several consecutive kicking movements arenot successful,waitten seconds.
System limitations
The system may be impaired or may not functionif:
RSnow or dirt, e.g. fromroad salt, coversthesensor area.
RThe kicking movement is made using a pros‐thetic leg.
The trunk lid could be opened or closed uninten‐tionally, inthefollowing situations:
RIf a person's arms or legs are moving inthesensor detectionrange, e.g. when polishingthevehicle, sitting onthe edge ofthe trunk,or picking up objects.
RIf objects are moved or placed behindthevehicle, e.g.charging cables,tensioningstraps or luggage.
RWhenworking onthe trailer coupling, trailersorrear bicycleracks.
Deactivate KEYLESS-GO (→page 63) or do notcarrythe SmartKeyaboutyour person intheseand similar situations.
Switching separate trunk locking on/off
Ifyou centrally unlockthevehicle while separatelocking is activated,the trunk willremain locked.
74Opening and closing

Iftheroller sunblinds ofthe panoramic slidingsunroof are closed,theroller sunblinds areopenedfirst.
Iftheroller sunblinds oftherear doors areclosed,theroller sunblinds are openedfirst.
#Tointerruptconvenience opening:releasethe6button.
#Tocontinue convenience opening:pressand holdthe6button again.
Convenience closing (closingthevehiclefrom outside)
&WARNINGRisk of entrapment causedbyinadvertent convenience closing
Whenthe convenience closingfeature isoperating, parts ofthe body could become
trapped inthe closing area ofthe side win‐dow andthe sliding sunroof.
#Observethe completeclosing proce‐durewhen using convenience closing.
#When closing, makesurethat no bodyparts are inthe closing area.
#Press and holdthe7button ontheSmartKey.
Thefollowing functions are performed:
RThevehicle is locked.
RThe side windowsare closed.
RThe panoramic sliding sunroof is closed.
#Tointerruptconvenience closing:releasethe7button.
#Toclosetheroller sunblinds:press andholdthe7button again.
%Convenience closing can also be operatedwithKEYLESS-GO (→page67).
80Opening and closing

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 (anti-theft alarmsystem)
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
TheATA system is armed automatically afterapproximately10seconds:
RAfter lockingthevehicle withthe SmartKey
RAfter lockingthevehicle using KEYLESS-GO.
WhentheATAsystem is armed, indicator lamp1flashes.
TheATA system is automatically deactivated:
RAfter unlockingthevehicle withthe Smart‐Key
RAfter pressingthestart/stop button withtheSmartKeyinsidethevehicle
90Opening and closing

RAfter unlockingthevehicle using KEYLESS-GO
DeactivatingtheATA#Pressthe6,7or

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

Loading guidelines..................................121
Loading information table......................442
LoadsSecuring ..............................................121
Locator lightingsee Surround lighting
Locking/unlockingActivating/deactivatingthe auto‐matic lockingfeature .............................68Emergencykey ...................................... 69KEYLESS-GO ..........................................67Unlocking and opening doors fromthe inside ..............................................66
Low-beam headlampsSwitching on/off .................................14 5
Lubricant additivesseeAdditives
LuggageNet hooks ............................................12 6Securing ..............................................121
M
MAGICBODYCONTROL...........................217Setting ................................................. 221Suspension ..........................................217
MAGIC SKY CONTROL...............................86Function ................................................ 86Operating .............................................. 86
MAGIC VISION CONTROLWindshield wipers...............................15 3
MaintenanceMenu (on-boardcomputer) .................. 256Vehicle ...................................................21
Maintenancesee ASSYST PLUS
MalfunctionRestraint system ................................... 32
Malfunction messagesee Display message
Map...........................................319, 320, 321Avoiding an area ..................................323Avoiding an area (overview) .................323Changing an area ................................ 324Deleting an area .................................. 324
Displayingthe compass ....................... 325Displayingthe mapversion .................323Displayingthe next intersectingstreet................................................... 323Displayingthe satellite map ................326Displayingthe traffic map ....................319Displayingweather information ...........326Map data ............................................. 325Moving ................................................ 322Overview ............................................. 320Selecting POI symbols ......................... 322Selectingtext information ................... 322Selectingthe map orientation .............322Settingthe map scale .......................... 321Settingthe map scale automatically ....325Updating .............................................. 324
Map and compassOverview .............................................320
Massage programOverview .............................................109Resettingthe settings ..........................11 0
Massage programsSelectingthe front seats ......................110
556Index