2019 MERCEDES-BENZ S CLASS Owners Manual

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

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.
64Opening and closing

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.
66Opening and closing

Locking/unlockingthevehicle centrally fromthe inside
#Tounlock:press button1.
#Tolock:press button2.
This does not lock or unlockthe fuelfillerflap.
Thevehicle is not unlocked:
RIfyou havelockedthevehicle usingtheSmartKey.
RIfyou havelockedthevehicle using KEY‐LESS-GO.
Locking/unlockingthevehicle with KEY‐LESS-GO
Requirements:RThe SmartKeyis outsidethevehicle.
RThe distance betweenthe SmartKeyandthevehicle does notexceed 3ft(1 m).
RThe driver's door andthe door at whichthedoor handle is used are closed.#Tounlockthevehicle:touchthe inner sur‐face ofthe door handle.
#Tolockthevehicle:touch sensor surface1or2.
#Convenience closing:touchrecessed sen‐sor surface2for anextended period.
%Further information on convenience closing(→page80).
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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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#Todeactivate:press and hold button1forapproximatelyfiveseconds until an acousticsignal sounds.
#Toactivate:press and hold button2forapproximatelyfiveseconds until an acousticsignal sounds.
Inthefollowing situations,there is a danger ofbeing locked out whenthe function is activated:
RThevehicle is beingtowed/pushed.
RThevehicle is beingtested on a dynamome‐ter.
Information onthe power closing functionfor the doors
Ifyou pushthe door intothe locktothefirstdetent position,the power closing function willautomatically pullthe door intothe lock.
Locking/unlockingthe driver's door withtheemergencykey
%Ifyou wishtolockthevehicle entirely usingthe emergencykey,first pressthe buttonforlocking fromthe inside whilethe driver'sdoor is open. Then proceedtolockthe driv‐er's door usingthe emergencykey.#Insertthe emergencykey asfar as it will gointo opening1inthe cover.
#Pull and holdthe door handle.
#Pullthe cover onthe emergencykey asstraight as possibleawayfromthevehicleuntil itreleases.
#Releasethe door handle.
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#Tounlock:turnthe emergencykey counter-clockwisetopositionG.
#Tolock:turnthe emergencykey clockwisetopositionG.
#Carefully pressthe cover ontothe lock cylin‐der until it engages and is seatedfirmly.
Trunk
Openingthe trunk lid
&DANGERRisk ofexhaustgas poisoning
Combustion engines emit poisonousexhaustgases such as carbon monoxide. Exhaustgases can enterthevehicle interior ifthetrunk lid is open whenthe engine isrunning,especially ifthevehicle is in motion.
#Always switch offthe engine beforeopeningthe trunk lid.
#Never drive withthe trunk lid open.
*NOTEDamagetothe trunk lidbyobsta‐cles abovethevehicle
The trunk lid swings upwards when it isopened.
#Therefore, make surethatthere is suffi‐cient clearance abovethe trunk lid.
You havethefollowing optionsfor openingthetrunk lid:
#Pullthe trunk lid handle.
#Vehicles with trunk lid convenience clos‐ing:With the trunk lidstopped in an inter‐mediate position, pullthe trunk lid upwardsandrelease as soon as it beginstoopen.
#Press and holdthe