2019 MERCEDES-BENZ S CLASS battery

Interior lighting ...........................................15 0Windshield wiper and windshieldwashersystem ........................................................151Mirrors........................................................154Operatingthe sun visors .............................157Area permeabletoradiowaves onthewindshield ..................................................15 8Infraredreflective windshield function ........15 8
Climate control........................................15 9Overview of climate control systems ..........159Operatingthe climate control system .........16 0
Driving and parking..................................167Driving ........................................................167DYNAMIC SELECT switch ............................175Automatic transmission ..............................17 7Refueling ....................................................180Parking .......................................................182Driving and driving safety systems ..............191Vehicletowing instructions .........................249
Instrument Display and on-boardcomputer..................................................251Instrument Displayoverview .......................251Overview ofthe buttons onthesteeringwheel ..........................................................252Operatingthe on-board computer .............. 252Settingthe design ...................................... 254Settingthe additionalvaluerange .............. 254Overview of displays onthe multifunc‐tion display .................................................255Adjustingthe instrument lighting ............... 255Menus and submenus ................................ 256Head-up Display ......................................... 262
Voice Control System..............................263Notes on operating safety .......................... 263Operation ................................................... 263UsingtheVoice Control System effec‐tively ........................................................... 265Essentialvoice commands .........................265
Multimedia system..................................278Overview and operation ..............................278System settings .......................................... 287
Fit & Healthy............................................... 299Navigation ................................................... 301Telephone ...................................................326Online and Internet functions ..................... 348Media .........................................................354Radio .......................................................... 367Sound .........................................................375Rear Seat Entertainment System ................377
Maintenance and care.............................395ASSYST PLUS service interval display ........ 395Engine compartment .................................. 396Cleaning and care .......................................403
Breakdown assistance.............................413Emergency ..................................................413Flat tire .......................................................413Battery (vehicle) ..........................................419Towstarting ortowingaway....................... 424Electrical fuses ........................................... 430
Contents3

&WARNINGRisk of accident duetoobjects inthe driver'sfootwell
Objects inthe driver'sfootwell may impedepedal travel or block a depressed pedal.
This jeopardizesthe operating androadsafety ofthevehicle.
#Stowall objects inthevehicle securelysothattheycannotgetintothe driver'sfootwell.
#Always installthefloor mats securelyand as prescribed in ordertoensurethatthere is always sufficientroomforthe pedals.
#Do not use loosefloor mats and do notplacefloor mats ontop of one another.
*NOTEBattery discharging from usingdevices connectedtothe diagnosticsconnection
Using devices atthe diagnostics connectiondrainsthe battery.
#Checkthechargelevel ofthe battery.
#Ifthechargelevel is low,chargethebattery,e.g.bydriving a considerabledistance.
Connecting equipmenttothe diagnostics con‐nection can leadtoemissions monitoring infor‐mation beingreset,forexample. This may leadtothevehiclefailingtomeettherequirements ofthe next emissions inspection duringthe maininspection.
Qualified specialistworkshop
Plug-inhybrid:observethe notes inthe Supple‐ment. Otherwise,you mayfailtorecognize dan‐gers.
An authorized Mercedes-Benz Center is aquali‐fied specialistworkshop. It hasthe necessaryspecial skills,tools andqualificationstocor‐rectly carryouttheworkrequired onyourvehi‐cle. This particularlyappliestosafety-relevantworks.
Always havethefollowingworkcarried out onyourvehicle at aqualified specialistworkshop:
RSafety-relevantwork
RService and maintenancework
RRepairwork
RModifications aswell as installations andconversions
RWorkon electronic components
Mercedes‑Benzrecommends a Mercedes‑Benzservice center.
Correct use ofthevehicle
Ifyouremoveanywarningstickers,you orotherscouldfailtorecognize certain dangers. Leavewarningstickersin position.
Observethefollowing information in particularwhen drivingyourvehicle:
Rthe safety notes inthis manual
Rtechnical dataforthevehicle
Rtrafficrules andregulations
24General notes

QR codeforrescue card
The QR code is secured inthe fuelfillerflap andonthe opposite side onthe B-pillar. Intheeventof an accident,rescue services can usethe QRcodetoquicklyfindthe appropriaterescue cardforyourvehicle. The currentrescue card con‐tainsthe most important information aboutyourvehicle in a compactform, e.g.therouting oftheelectric lines.
Further information can be obtained at http://www.mercedes-benz.de/qr-code.
Datastorage
Electronic control units
Electronic control units are installed inyourvehi‐cle. Some ofthese are necessaryforthe safeoperation ofyourvehicle, while some assistyouwhen driving (driver assistance systems). Inaddition,yourvehicle provides comfortandentertainment functions, which are also madepossiblebyelectronic control units.
Electronic control units contain datamemorieswhichcantemporarily or permanentlystore
technical information aboutthevehicle's operat‐ingstate, component loads, maintenancerequirements andtechnicalevents or malfunc‐tions.
Ingeneral,this information documentsthestateof a component part, a module, a system orthesurroundings such as:
Roperatingstatus of system components (e.g.fill levels, batterystatus, tire pressure)
Rstatus messages concerningthevehicle orits individual components (e.g. number ofwheelrevolutions/speed, longitudinal accel‐eration, lateral acceleration, display offas‐tened seat belts)
Rmalfunctions orfaults in important systemcomponents (e.g. lights, brakes)
Rinformation onevents leadingtovehicledamage
Rsystemreactions in special driving situations(e.g. airbag deployment, intervention ofsta‐bility control systems)
Rambient conditions (e.g.temperature,rainsensor)
In additiontoprovidingthe actual control unitfunction,this data assiststhe manufacturer indetecting andrectifying malfunctions and opti‐mizingvehicle functions. The majority ofthisdata istemporary and is only processed inthevehicle itself. Only a small portion ofthe data isstored intheevent or malfunction memory.
Whenyourvehicle is serviced,technical datafromthevehicle can beread outbyservice net‐workemployees (e.g.workshops, manufactur‐ers) orthird parties (e.g. breakdown services).Services includerepair services, maintenanceprocesses,warranty claims andquality assur‐ance measures,forexample. Theread out is per‐formed viathe legally prescribed portforthediagnostics connection inthevehicle. Therespective service network locations orthirdparties collect, process and usethe data. Theydocumenttechnicalstatuses ofthevehicle,assist infinding malfunctions and improvingquality and are transmittedtothe manufacturer,if necessary.Furthermore,the manufacturer issubjecttoproduct liability.Forthis,the manu‐facturerrequirestechnical datafromvehicles.
26General notes

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
62Opening and closing

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.
Opening and closing65

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