Removing the headrestraint
#Fold headrestraint bar covers2towardstherear.
#Hold front passenger headrestraint1tightly.
#Pull adjuster lever3towardstherear andhold it inthis position.
#Removefront passenger headrestraint1.
#Release adjuster lever3.Red pin4protrudes fromthe adjuster lever.
#Press downred pin4.
#Fold covers2forwards and closethem.
Insertingthe headrestraint
#Fold headrestraint bar covers2towardstherear.
#Pull handle3towardstherear.Red pin4protrudes fromthe adjuster lever.
#Insert front passenger headrestraint1intothe brackets.The front passenger headrestraint mustengage on bothsides.
#Press downred pin4.If pin4can be pressed down and isthen nolonger visible,the front passenger headrestraint has engaged correctly.
#Fold covers2forwards and closethem.The front passenger headrestraintfolds intoposition automatically.
Movingthe front passenger seat intothenormal position (chauffeur mode)
Requirements:RToselectthe front passenger seat:the powersupply is switched on
RThe front passenger headrestraint is instal‐led
102Seats andstowing
#Press and hold button1untilthe headrestraint hasextended orretracted.
Setting the center headrestraint into posi‐tion mechanically
#Pullthe headrestraint up until it engages.
Configuringthe seat settings
Requirements:RThe ignition is switched on.
Multimedia system:
,Vehicle.aSeats
#SelectDriver's SeatorPassenger Seat.
Adjusting the backrest side bolsters
#SelectSide Bolsters.
#Selectthe setting.
Adjusting the seat contour in the lumbarregion ofthe seat backrest (lumbar)
#SelectLumbar.
#Adjustthe air cushion.
Settingthe shoulder section
#SelectShoulders.
#Selectthe settings.
Settingthe seat heating balance
#SelectSeat Heating Balance.
#Selectthe settings.
Memory function
#Savethe seat adjustments withthe memoryfunction (→page115).
Setting automatic adjustment of the lateralsupport(active multicontour seat)
Multimedia system:
,Vehicle.aSeats
With this function,the lateral support oftheactive multicontour seat is automatically adjus‐tedtothe driving and cornering dynamics ofthevehicle.
#SelectDriver's SeatorPassenger Seat.
#SelectDynamic Seat.
#Select setting:Off,Level 1orLevel 2.
Overview of massage andworkout programs
Massage programs
Thefollowing programs can be selected:
RHot Relaxing Back
RHot Relaxing Shoulder
RActivating Massage
RClassic Massage
RMobilizing Massage
Seats andstowing109
#If somebody becomes trapped, immedi‐atelyreleasethe memory function posi‐tion button.The adjustment process isstopped.
&WARNINGRisk of entrapment ifthememory function is activatedbychildren
Children could become trapped iftheyacti‐vatethe memory function, particularly whenunattended.
#Never leavechildren unattended inthevehicle.
#When leavingthevehicle, alwaystakethekey withyou and lockthevehicle.
The memory function can be used whenthe igni‐tion is switched off.
StoringThe memory function is onlyavailable invehicleswiththe memory package.
Seat adjustmentsfor uptothree people can bestored and called up usingthe memory function.
Thefollowing settings can bestoredforthe frontseats:
RSeat, backrest, headrestraint position andcontour ofthe seat backrest inthe lumbarregion
RActive multicontour seat: side bolstersoftheseat backrest, shoulder ofthe seat backrest,contour ofthe seat backrest, dynamic func‐tion level
RSeat heating: distribution ofthe heated sec‐tions ofthe seat cushion and seat backrest
RDriver's side:steering wheel position andposition ofthe outside mirrorsonthe driver'sand front passenger sides
RHead-up Display#Setthe seat,thesteering wheel,the Head-upDisplay andthe outside mirrortothe desiredposition.
#Brieflypress memory button M andthenpress preset position button1,2 or 3 withinthree seconds.An acoustic signal sounds. The settings arestored.
11 6Seats andstowing
%Depending onthe model, only preset posi‐tion buttons 1 and 2 areavailable.
#Tocall up:press and holdtherelevant pre‐set position button1,2 or 3 untilthe frontseat,thesteering wheel, Head-up Displayand outside mirror are inthestored position.
%Depending onthe model, only preset posi‐tion buttons 1 and 2 areavailable.
%Ifyoureleasethe preset position button,theseat,steering wheel and mirror setting func‐tionsstop immediately.Vehicles withtheActive MulticontourSeatPackage:Settingthe active multicon‐tour seat orthe 4-waylumbar support isstillcarried out.Vehicles withouttheActive MulticontourSeatPackage:Adjustment ofthe 4-waylumbar support isstill carried out.
Memory function intherear passengercompartment
Operatingrear seat viathe memory functionintherear passenger compartment
StoringRear seat settingsfor uptothree people can bestored and called up usingthe memory functionintherear passenger compartment.
Thefollowing settings can bestoredfortherearseats:
RPosition ofthe seat, backrest and headrestraint
RActive multicontour seats:the seat side bol‐sters ofthe seat backrest aswell asthe con‐tour ofthe seat backrest inthe lumbar andshoulderregions
RSeat heating: distribution ofthe heated sec‐tions ofthe seat cushion and seat backrest
#Press button1.Therear seat is selected ifthe indicator lampinthe button does not light up.
#Adjusttherear seat usingthe buttons inthedoor control panel (→page97).
Seats andstowing117
#Always make surethatthere is suffi‐cient distancetothe sideforother traf‐fic or obstacles.
&WARNINGRisk of accident despiteLaneKeeping Assist
LaneKeeping Assist cannotalways clearlydetect lane markings.
In suchcases, LaneKeeping Assist can:
Rgive an unnecessarywarning
Rnot give awarning
#Always pay particular attentiontothetraffic situation andkeep withinthelane, especially ifActive LaneKeepingAssist alertsyou.
Be suretoobservethe system limitations ofActive LaneKeeping Assist.
#Press button2.If indicator lamp1lights up,Active LaneKeeping Assist is activated,the lane mark‐ings are shown as light inthe assistancegraphic. WhenActive LaneKeeping Assist isactive,the lane markings are shown in greeninthe assistance graphic.
%Depending onthe country,you may havetopress and holdthe buttontodeactivate.
Settingthe sensitivity ofActive LaneKeep‐ing AssistMultimedia system:
,Vehicle.kAssistance.Act.
Lane Keep. Assist
#Select a setting.
Activating/deactivating thewarning
#SwitchLane Depart. Warningon sor off S.You do notreceiveanywarning when leavinga lane ifthe lanekeepingwarning system isdeactivated.
Vehicletowing instructions
Thevehicle is not suitableforthe use oftow barsystemsthat are usedforflattowing or dinghytowing,forexample.Attaching and usingtow barsystems can leadtodamage onthevehicle.Whenyou aretowing avehicle withtow bar sys‐tems, safe drivingcharacteristics cannot beguaranteedforthetowingvehicle orthetowedvehicle. Thevehicle-trailer combination mayswervefrom sidetoside. Comply withthe per‐
Driving and parking249
Rbetweentherear shelf andthrough-load skibag
Overview ofRear Seat Entertainment Systemports
1HDMI port
2USB ports
Depending onthevehicle equipment,the portsare located inthefollowing positions:
Rinthestowage box betweentherear seats or
Rintherear armrest
Rear seats
Adjusting therear seatsRear Seat Entertainment System:
,System.aSeat
#SelectSide BolstersorLumbar.
#Selectthe setting.
Memory function
#Savethe seat adjustments withthe memoryfunction (→page117).
Selecting the massage programfor therearseatsRear Seat Entertainment System:
,System.aSeat
#SelectMassage.
#Select a massage program.The massage programrunsfor approximately8to18minutes, depending onthe setting.
#Tosetthe massage intensity: switchHighIntensityon sor off S.
Overview of massageandworkout programOverview of massage andworkout programs(→page109).
Resettingrear seat settingsRear Seat Entertainment System:
,System.aSeat.Reset
#SelectYesorNo.
Settingtherear climate control
Rear Seat Entertainment System:
,System.bClimate Control
Activating theSYNCfunction
#SelectSYNC.
#Switchthe function on sor off S.
384Multimedia system
If a tire pressureof180 kPa (1.8 bar/26 psi)has been attained after eight minutes:
&WARNINGRisk of accident from drivingwithsealed tires
A tiretemporarily sealed with tire sealantimpairs drivingcharacteristics and is notsuitablefor higher speeds.
#Adaptyour drivingstyle accordinglyanddrive carefully.
#Do notexceedthe maximum speedlimit with a tirethat has beenrepairedusing tire sealant.
Observethe maximum permissible speedfor atire sealed with tire sealant 50mph (80 km/h).#Affixthe upper section ofthe TIREFITstickertothe instrument cluster in a location whereit will be easilyseenbythe driver.
*NOTEStaining causedbyleaking tiresealant
After use,excess tire sealant may leak outfromthefilling hose.
#Therefore, placethefilling hose intheplastic bagthat containedthe TIREFITkit.
+ENVIRONMENTALNOTEEnvironmentalpollution causedbyenvironmentally irre‐sponsible disposal
Tiresealant contains pollutants.
#Havethe tire sealant bottle disposed ofprofessionally,e.g. at an authorizedMercedes-Benz Center.
#Switch offthe tire inflation compressor.
#Unscrewthefilling hose fromthevalve ofthefaulty tire.
#Stow the tire sealant bottle,the tire inflationcompressor andthewarning triangle.
#Pullawayimmediately.
#Stop driving after approximatelyten minutesandcheckthe tire pressure usingthe tireinflation compressor.The tire pressure must now be at least130 kPa (1.3 bar/19 psi).
&WARNINGRisk of accident duetothespecified tire pressure not beingreached
Ifthe specified tire pressure is notreachedafter a brief drive,the tire istoo badly dam‐aged. The tire sealant cannotrepairthe tireinthis instance.
Damaged tires and tire pressurethat istoolow can significantly impairthe braking prop‐erties andthe handlingcharacteristics.
#Do not continue driving.
#Consult aqualified specialistworkshop.
In cases such asthe one mentioned above, con‐tact an authorized Mercedes-Benz Center. Orcall 1-800-FOR-MERCedes (inthe USA) or1-800-387-0100(in Canada).
#Correctthe tire pressure if it isstill at least130 kPa (1.3 bar/19 psi).You willfindthevalues intheTireand Loading Informationplacard onthe B-pillar onthe driver's side orinthe tire pressuretable inthe fuelfillerflap.
#Toincreasethe tire pressure:switchonthe tire inflation compressor.
41 8Breakdown assistance
Mercedes-Benzrecommends transportingyourvehicle inthe case of a breakdown,ratherthantowing itaway.
Fortowing, use atowrope ortow bar with bothaxles onthe ground. Do not usetow bar systems(→page249).
*NOTEDamagetothevehicle dueto tow‐ingawayincorrectly
#Observethe instructions and notes ontowingaway.
Towing with araised axle:towing should beperformedbyatowing company.
Permittedtowing methods
Vehicle equipment/towingmethod
Bothaxles onthegroundFront axleraisedRear axleraised
Vehicles with automatic transmis‐sionYes, maximum31miles (50 km) at31mph (50 km/h)NoYes, ifthesteering wheel isfixed inthe center position with asteeringwheel lock
4MATICvehiclesYes, maximum31miles (50 km) at31mph (50 km/h)NoNo
Breakdown assistance425