2019 MERCEDES-BENZ S CLASS key battery

SmartKey
Overview of SmartKeyfunctions
&WARNINGRisk 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.
*NOTEDamagetothekey causedbymagneticfields
#Keepthekeyawayfromstrong mag‐neticfields.
1Locks
2Batterycheck lamp
3Unlocks
4Opens/closesthe trunk lid
5Panic alarm
The SmartKey locksand unlocksthefollowingcomponents:
RDoors
RTrunk lid
RFuelfillerflap
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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‐
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Key .Todo so, deactivatethe SmartKeyfunc‐tions.
#Todeactivate:pressthe7button ontheSmartKeytwice inquick succession.The batterycheck lamp ofthe SmartKeyflashes twice brieflyand lights up once.
#Toactivate:press any button onthe Smart‐Key.
%Whenthevehicle isstarted withthe Smart‐Key inthestowage compartment ofthe cen‐ter console,the SmartKeyfunctions areautomaticallyactivated (→page169).
Removing/inserting the emergencykey
#Toremove:pressrelease button1.Emergencykey2is pushed out slightly.
#Pull out emergencykey2until it engages inthe intermediate position.
%You can usethe intermediate position ofemergencykey2toattachthe SmartKeytoakeyring.
#Pressrelease button1again and fullyremoveemergencykey2.
#Toinsert:pressrelease button1.
#Insert emergencykey2tothe intermediateposition or fully until it engages.
Replacing the SmartKeybattery
&DANGERSerious damagetohealthcausedbyswallowing batteries
Batteries containtoxic and corrosive sub‐stances. Swallowing batteries may causeserious damagetohealth.
There is arisk offatal injury.
#Keep batteries out ofthereach ofchil‐dren.
#If batteries are swallowed, seek medicalattention immediately.
+ENVIRONMENTALNOTEEnvironmentaldamagecausedbyimproper disposal ofbatteries
Batteries contain pollutants. It isillegaltodispose ofthem withthe householdrubbish.
#
Dispose of batteries in anenvironmentallyresponsible manner.Takedischarged batteriestoaqualifiedspecialistworkshop ortoa collectionpointfor used batteries.
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Requirements:RYourequire a CR 2032 3 V cell battery.
Mercedes-Benzrecommendsthatyou havethebatteryreplaced at aqualified specialistwork‐shop.
#Removethe mechanicalkey (→page64).
#Pressrelease button2down fully andremovecover1.
#Removebattery compartment3andtakeoutthe discharged battery.
#Insertthe new battery into battery compart‐ment3. Observethe positive pole markinginthe battery compartment and onthe bat‐tery.
#Push in battery compartment3.
#Replace cover1sothat it engages.
Problems withthe SmartKey
ProblemPossible causes/consequences andPPSolutions
You can no longer lock or unlockthevehicle.Possible causes are:
RThe SmartKeybattery is discharged or nearly discharged.
RThere is interference from a powerfulradio signal source.
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ProblemPossible causes/consequences andPPSolutions
RThe SmartKeyis defective.
#Checkthe battery usingthe batterycheck lamp andreplace if necessary (→page64).
#Usethe emergencykeytolock or unlock (→page64).
#Havethe SmartKeychecked at aqualified specialistworkshop.
You havelost a SmartKey.#Havethe SmartKeydeactivated at aqualified specialistworkshop.
#If necessary,havethe mechanical lockchanged aswell.
Doors
Unlocking and opening doors fromthe inside
#Tounlockand open a front door:pull doorhandle2.Locking pin1pops up whenthe door isunlocked.
#Tounlockarear door:pulltherear doorhandle.The locking pin pops up whentherear dooris unlocked.
#Toopen arear door:pulltherear door han‐dle again.
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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.
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#Toswitch on:slidethe switchtopositionH.
#Toswitch off:slidethe switchtopositionG.
%If an accident has been detected,the trunkwill unlockeven if separate locking isswitched on.
Unlockingthe trunk withthe emergencyrelease from inside
Requirements:RThe12Vvehicle battery is connected andcharged.
#Press emergencyrelease button1briefly.The trunk lid unlocksand opens.
Unlockingthe trunk lid usingthe mechanicalkey
#Takethe mechanicalkey out ofthe SmartKey(→page64).
#Insertthe mechanicalkey intothe trunk lockasfar as it will go.
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ProblemPossible causes/consequences andPPSolutions
The side windowscannot be opened orclosed usingthe convenience openingfeature.
The SmartKeybattery is discharged or nearly discharged.
#Checkthe battery usingthe batterycheck lamp andreplace if necessary (→page64).
Sliding sunroof
Opening/closingthe sliding sunroof
&WARNINGRisk of becoming trappedwhile opening and closingthe slidingsunroof
During opening and closing, parts ofthebody couldgetcaught inthe sweep ofthesliding sunroof.
#When opening or closing, make surethat no body parts are inthe sweep.#Releasethe button immediately ifsomebody becomes trapped.
or
#Pressthe button in any direction duringthe automatic opening/closing process.The opening/closing process isstop‐ped.
&WARNINGRisk of becoming trapped ifthe sliding sunroof is operatedbychil‐dren
Children operatingthe sliding sunroof couldgetcaught inthe moving parts, particularly ifunattended.
#Never leavechildren unattended inthevehicle.
#When leavingthevehicle, alwaystakethekey withyou and lockthevehicle.
&WARNINGRisk of becoming trappedwhile opening and closingtheroller sunblind
When opening or closing, make surethat nobody parts become trapped betweentheroller sun blind and frame orthe sliding sun‐roof.
#When opening or closing, make surethat no body parts are inthe sweep oftheroller sun blind.#Releasethe button immediately ifsomebody becomes trapped.
or
#Pressthe button in any direction duringthe automatic opening/closing process.The opening/closing process isstop‐ped.
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