#Pushthe plug of hose5intoflange6oftire sealant bottle1untilthe plug engages.
#Place tire sealant bottle1head downwardsintorecess2ofthe tire inflation compres‐sor.
#Removethe cap fromvalve7onthefaultytire.
#Screwfilling hose8ontovalve7.
#Insert connector4into a12V socket inyourvehicle.
#Switch onthe ignition.
#Press on and off switch3onthe tire infla‐tion compressor.The tire inflation compressor is switched on.The tire is inflated. First, tire sealant is pum‐ped intothe tire. The pressure may brieflyrisetoapproximately 500 kPa (5 bar/73 psi).
Do not switch offthe tire inflation compres‐sor duringthis phase.
#Letthe tire inflation compressorrunfor amaximum of eight minutes.The tire shouldthen haveattained a tirepressure of at least180 kPa (1.8 bar/26 psi).
If tire sealant leaksout, make sureyou cleantheaffected area asquickly as possible. It is prefera‐bletouse clearwater.
Ifyouget tire sealant onyour clothing, haveitcleaned as soon as possible with perchloroethy‐lene.
If a tirepressure of180 kPa (1.8 bar/26 psi)has not been attained after eight minutes:
#Switch offthe tire inflation compressor.
#Unscrewthefilling hose fromthevalve ofthefaulty tire.
Please notethat tire sealant may leak out whenunscrewingthefilling hose.
#Driveforwards orreverseveryslowlyforapproximately 33ft(10 m).
#Pump upthe tire again.After a maximum of eight minutesthe tirepressure must be at least180 kPa (1.8 bar/26 psi).
&WARNINGRisk of accident duetothespecified tire pressure not beingreached
Ifthe specified tire pressure is notreachedafterthe specified time,the tire istoo badlydamaged. The tire sealant cannotrepairthetire inthis instance.
Damaged tires and a tire pressurethat istoolow can significantly impair braking and han‐dlingcharacteristics.
#Do not continue driving.
#Consult aqualified specialistworkshop.
Breakdown assistance417
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
#Toreduce the tire pressure:press pressurerelease button1nexttopressuregauge2.
#Whenthe tire pressure is correct, unscrewthefilling hose fromthevalve ofthe sealedtire.
#Screwthevalve cap ontothevalve ofthesealed tire.
#Pullthe tire sealant bottle out ofthe tireinflation compressor.Thefilling hosestays onthe tire sealant bot‐tle.
#Drivetothe nearestqualified specialistwork‐shop and havethe tire, tire sealant bottle andfilling hosereplacedthere.
Battery(vehicle)
Notes onthe12V battery
&WARNINGRisk of an accident duetoworkcarried out incorrectly onthe bat‐tery
Workcarried out incorrectly onthe batterycan,forexample, leadtoa short circuit. Thiscan leadtofunctionrestrictions in safety-rel‐evant systems,forexamplethe lighting sys‐
tem, ABS (anti-lockbraking system) or ESP®
(ElectronicStability Program). The operatingsafety ofyourvehicle may berestricted.
You could lose control ofthevehicle inthefollowing situations:
Rwhen braking
Rintheevent of abruptsteering maneuversand/or whenthevehicle's speed is notadaptedtotheroad conditions
#Intheevent of a shortcircuit or a simi‐lar incident, contact aqualified special‐istworkshop immediately.
#Do not continue driving.
#Always haveworkonthe battery carriedout at aqualified specialistworkshop.
RFurther information on ABS (→page192)
RFurther information on ESP®(→page193)
For safetyreasons, Mercedes-Benzrecommendsthatyou onlyuse batteries which havebeentes‐ted and approvedforyourvehiclebyMercedes-Benz. These batteries provide increased impactprotectiontopreventvehicle occupants fromsuffering acid burns shouldthe battery be dam‐aged intheevent of an accident.
Breakdown assistance419
Furtherrelated subjects:
RNotes on tire pressure (→page 435)
RTirepressuretable (→page 437)
RTireand Loading Information placard(→page442)
Tirepressure monitoring system
Function ofthe tire pressure monitoring sys‐tem
&DANGERRisk of accident duetoincor‐rect tire pressure
Every tire, includingthe spare (if provided),should bechecked when cold at least once amonth and inflatedtothe pressurerecom‐mendedbythevehicle manufacturer (seeTireand Loading Information placard ontheB-pillar onthe driver’sside orthe tire pres‐sure label onthe inside ofthe fuelfillerflapofyourvehicle). Ifyourvehicle has tires of adifferent sizethanthe size indicated ontheTireand Loading Information placard orthe
tire pressuretable,you needtodeterminethe proper tire pressureforthose tires.
As an added safetyfeature,yourvehicle hasbeen equipped with a tire pressure monitor‐ing system (TPMS)that illuminates a low tirepressure indicator lamp when one or more ofyour tires are significantly underinflated.Accordingly, ifthe low tire pressure indicatorlamp lights up,you shouldstop andcheckyour tires as soon as possible, and inflatethemtothe proper pressure. Driving on asignificantly underinflated tire causesthe tiretooverheat and can leadtotirefailure.Underinflation also increases fuel consump‐tion andreduces tire tread life, and mayaffectthevehicle's handling and braking abil‐ity. Please notethatthe TPMS is not a substi‐tutefor proper tire maintenance, and it isthedriver'sresponsibilitytomaintain correct tirepressure,even if underinflation has notreachedthe leveltotrigger illumination ofthe TPMS low tire pressure indicator lamp.
Yourvehicle has also been equipped with aTPMS malfunction indicatortoindicate when
the system is not operating properly. TheTPMS malfunction indicator is combined withthe low tire pressure indicator lamp. Whenthe system detects a malfunction,the indica‐tor lamp willflashfor approximatelya minuteandthenremain continuously illuminated.This sequence will continue upon subsequentvehiclestart-ups as long asthe malfunctionexists.
Whenthe malfunction indicator is illumina‐ted,the system may not be abletodetect orsignal low tire pressure as intended. TPMSmalfunctions may occurfor avariety ofrea‐sons, includingthe installation of incompati‐blereplacement or alternate tires or wheelsonthevehiclethat preventthe TPMS fromfunctioning properly.
Alwayscheckthe TPMS malfunctionwarninglamp afterreplacing one or more tires orwheels onyourvehicletoensurethatthereplacement or alternate tires and wheelsallowthe TPMStocontinuetofunction prop‐erly.
Wheels and tires439
ing condition (→page 437). Observethenotes on tiretemperature (→page 435).
%Thevalues displayed inthe multifunction dis‐play may deviate fromthose ofthe tire pres‐suregauge astheyrefertosea level.Athighaltitudes,the tire pressurevalue indicatedbya pressuregauge are higherthanthoseshownbythe on-board computer. Inthiscase, do notreducethe tire pressure.
Make suretoobservethefollowing furtherrela‐ted subject:
RNotes on tire pressure (→page 435)
Restartingthe tire pressure monitoring sys‐tem
Requirements:RTherecommended tire pressure is correctlysetfortherespective operating condition oneach ofthefour wheels (→page 435).
Restartthe tire pressure monitoring system inthefollowing situations:
RThe tire pressure haschanged.
RThe wheels or tires havebeenchanged ornewly installed.
On-board computer:
,Service.Tires
#Swipe downwards onTouch Control ontheleft-hand side ofthesteering wheel.TheUse Current Pressures as New Refer-ence Values?message is shown inthe multi‐function display.
#Press vtoconfirmtherestart.TheRun Flat Indicator Restartedmessage isshown inthe multifunction display.
Currentwarning messages are deleted andthe wyellowwarning lamp goes out.
Afteryou havedrivenfor afew minutes,thesystemcheckswhetherthe current tire pres‐sures are withinthe specifiedrange. The cur‐rent tire pressures arethen accepted asref‐erencevalues and monitored.
Make suretoobservethefollowing furtherrela‐ted subject:
RNotes on tire pressure (→page 435)
Radio equipment approval ofthe tire pres‐sure monitoring system
Radio equipment approval numbers
CountryRadio type approval number
Canada IC: 2546A-GG4T
IC: 2546A-DG6W2D4
IC: 2546A-MC34MA4
Le présent appareil est conformeaux CNR d'Industrie Canadaapplicables aux appareilsradioexempts de licence. L'exploita‐tion est autorisée aux deux con‐ditions suivantes:
(1) l'appareil ne doit pas produirede brouillage,et
(2) l'utilisateur de l'appareil doitacceptertout brouillageradioé‐lectrique subi, même si le
brouillage est susceptible d'encompromettrelefonctionnement.
Wheels and tires441
and one-half times aswell onthe governmenttesttrack as a tire graded100.
Therelative performance of tires depends uponthe actual conditions oftheir use, however,andmay depart significantly fromthe norm duetovariations in driving habits, service practices anddifferences inroadcharacteristics and climateconditions.
Tractiongrade
&DANGERRisk of accident duetoinade‐quate traction
The tractiongrade assignedtothis tire isbased onstraight-ahead braking tractiontests, and does not include either accelera‐tion, cornering,hydroplaning or peak tractioncharacteristics.
#Always adaptyour drivingstyle anddrive at a speedtosuitthe prevailingtraffic andweather conditions.
*NOTEDamagetothe drivetrain fromwheelspin
#Avoid wheelspin.
The traction grades – from highesttolowest –are AA,A,B and C. Those gradesrepresentthetire's abilitytostop onwet pavement as meas‐ured under controlled conditions on specifiedgovernmenttestsurfaces made of asphalt andconcrete.
Temperaturegrade
&WARNINGRisk of accident from tireoverheating and tirefailure
Thetemperature gradeforthis tire is estab‐lishedfor a tirethat is properly inflated andnotoverloaded. Excessive speed, underinfla‐tion, orexcessive loading, either separatelyor in combination, can causeexcessive heatbuild-up and possible tirefailure.
#Observetherecommended tire pres‐sures andregularlycheckthe tire pres‐
sure of all tires includingthe sparewheel.
#Adjustthe tire pressure as necessary.
Thetemperature grades are A (the highest), Band C. Theyrepresentthe tire'sresistancetothegeneration of heat and its abilitytodissipateheat whentested under controlled conditions ona specified indoor laboratorytestwheel. Sus‐tained hightemperature can causethe materialofthe tiretodegenerate andreduce tire life, andexcessivetemperature can leadtosudden tirefailure. Grade C correspondstoa level of per‐formance which all passenger car tires mustmeet undertherequirements ofthe US Depart‐ment ofTransportation.
DOT,TireIdentificationNumber (TIN)
US tireregulationsstipulatethateverytire man‐ufacturer orretreader mustimprint a TIN in oronthe sidewall of each tire produced.
Wheels and tires447
Changing a wheel
Notes on selecting, installing andreplacingtires
Mercedes-AMGvehicles:observethe notes inthe Supplement. Otherwise,you may notrecog‐nize dangers.
You can askfor informationregarding permittedwheel/tire combinations at an authorizedMercedes-Benz Center.
&WARNINGRisk of accident duetoincor‐rect dimensions of wheels and tires
If wheels and tires ofthe wrong size areinstalled,the wheel brakes or wheel suspen‐sion components may be damaged.
#Alwaysreplace wheels and tires withthosethat fulfillthe specifications ofthe original part.
Whenreplacing wheels, make suretofitthecorrect:
RDesignation
RModel
Whenreplacing tires, make suretoinstallthecorrect:
RDesignation
RManufacturer
RModel
&WARNINGRisk of injurythroughexceed‐ingthe specified tire loadrating orthepermissible speedrating
Exceedingthe specified tire loadrating orthe permissible speedrating may leadtotiredamageandtothe tires bursting.
#Therefore, only use tire types and sizesapprovedforyourvehicle model.
#Observethe tire loadrating and speedratingrequiredforyourvehicle.
*NOTEVehicle and tire damagethroughtire types and sizesthat havenot beenapproved
For safetyreasons, onlyuse tires, wheelsand accessories which havebeen speciallyapprovedbyMercedes-Benzforyourvehicle.
These tires are specially adaptedtothe con‐
trol systems, such as ABS, ESP®and4MATIC, and marked asfollows:
RMO = Mercedes-Benz Original
RMOE = Mercedes-Benz Original Extended(run-flat tire onlyfor certain wheels)
RMO1 = Mercedes-Benz Original (only cer‐tain AMG tires)
Certaincharacteristics, such as handling,vehicle noise emissions, fuel consumption,etc. mayotherwise be adversely affected.Furthermore,other tire sizes couldresult inthe tiresrubbing againstthe body and axlecomponents when loaded. This couldresultin damagetothe tire orthevehicle.
454Wheels and tires
Observethefollowing when selecting, installingandreplacing tires:
ROnly use tires and wheels ofthe same type(summer tires, winter tires, MOExtendedtires) andthe same make.
ROnly install wheels ofthe same size on oneaxle (left andright).
It is only permissibletoinstall a differentwheel size intheevent of aflat tire in ordertodrivetothe specialistworkshop.
ROnly install tires ofthe correct size ontothewheels.
RVehicles with a tire pressure monitoringsystem:All installed wheels must be equip‐ped with functioning sensorsforthe tirepressure monitoring system.
RAttemperatures below 45 °F (7 °C), use win‐ter tires or all-season tires marked M+Sforall wheels.
Winter tires bearingthe Msnowflake sym‐bol in additiontothe M+S marking providethe best possible grip in wintryroad condi‐tions.
RFor M+S tires, only use tires withthe sametread.
RObservethe maximum permissible speedforthe M+S tires installed.
Ifthis is belowthevehicle's maximum speed,this must be indicatedbyan appropriatelabel inthe driver'sfield of vision.
RBreak in new tires at moderate speedsforthefirst 60 miles (100 km).
RReplacethe tires after sixyears atthe latest,regardless ofwear.
RWhenreplacing with tires that do notfea‐turerun-flatcharacteristics:vehicles withMOExtended tires are not equipped with aTIREFIT kit atthefactory.Equipthevehiclewith a TIREFIT kit afterreplacing with tiresthat do notfeaturerun-flatcharacteristics,e.g. winter tires.
For more information on wheels and tires, con‐tact aqualified specialistworkshop.
Be suretoalso observethefollowing furtherrelated subjects:
RNotes on tire pressure (→page 435)
RTireand Loading Information placard(→page442)
RTiresize designation, load-bearing capacity,speedrating and load index (→page449)
RTirepressuretable (→page 437)
Notes onrotating wheels
&WARNINGRisk of injurythrough differ‐ent wheel sizes
Interchangingthe front andrear wheels ifthewheels or tires havedifferent dimensionsmay severely impairthe drivingcharacteris‐tics.
The wheel brakes or wheel suspension com‐ponents may also be damaged.
#Rotatefront andrear wheels onlyifthewheels and tires are ofthe same dimen‐sions.
456Wheels and tires