BMW M3 2021 Owners Manual

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Incertainbrakingsituations,theperforatedbrake
discscancausefunctionalnoise.However,the
functionalnoiseshavenoeffectontheefficiency andoperationalsafetyofthebrakes.
Objectsintherangeofmovementof
thepedals
WARNING
Objectsinthedriver'sfootwellcanrestrictthe pedaltravelorblockapedalthathasbeen pressed.Thereisariskofaccident.Ensurethat
itemsinthevehiclearestowedsecurelyand cannotgetintothedriver'sfootwell.Onlyusefloormatsthataresuitableforthevehicleandcanbesecurelyfastenedtothefloor.Donotuseloosefloormats,anddonotplaceseveral
floormatsontopofoneanother.Makesure thatthereissufficientspaceforthepedals.Enj
surethatfloormatsaresecurelyreattachedafj terremoval,forexampleforcleaning.
Pedalfeelwhendrivingoff
Whenthedrive-readystatehasbeenswitched onafterthereststate,anunfamiliarpedalfeelcanoccur,forexampleshortpedaltravel.Onceyouhavecompletelyreleasedthebrakepedal,thepedalfeelwillbebacktonormal.
WetroadsInwetweather,ongrittedroadsandinheavy
rain,applythebrakeslightlyeveryfewkilomej
tres/miles.
Ensurethatyoudonotobstructotherroadusers
whendoingso.
Theheatgeneratedbybrakingdriesthebrake
discsandbrakepadsandprotectsthemagainst corrosion.
Thishelpstomaintainthebrakepowersothatit
isavailableimmediatelywhenneeded.
Downhillgradients
General
Whendrivingonlongorsteepdownhill
stretches,usethegearinwhichtheleastbraking isrequired.Otherwisethebrakesystemcanoverheatandthebrakingeffectisreduced.
Enginebrakingeffectcanbeadditionallyinj
creasedbymanuallyshiftingdown,evenintofirst gear,ifapplicable.
Safetynotes
WARNING
Evenslightbutcontinuouspressureonthe
brakepedalcancauseoverheating,brakepad wearorevenbrakesystemfailure.Thereisa
riskofaccident.Avoidexcessiveloadsonthe
brake.
WARNING
Whenidlingorwiththeengineswitchedoff, safety-relevantfunctions,forexampleengine
brakingeffectorsteeringandbrakingforceasj
sistance,areeitherrestrictedornotavailableat
all.Thereisariskofaccident.Donotdriveat
idlespeedorwiththeengineswitchedoff.
Corrosionofthebrakediscs
Corrosionofthebrakediscsandcontamination
ofthebrakepadsincreaseinthefollowingcirj cumstances:
'xLowmileage.'xExtendedperiodswhenthevehicleisnot
used.'xInfrequentuseofthebrakes.'xAggressive,acidicoralkalinecleaningagents.
Duringbraking,corrodedbrakediscsmaycause brakejudderwhichusuallycannotbeeliminated.
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Condensationwhenvehicleis
parked
Whentheautomaticairconditioningisinoperaj
tion,condensationdevelopsandexitsunderj
neaththevehicle.
Groundclearance
NOTE
Ifthereisinsufficientgroundclearanceatcurb
edgesorwhendrivingintoundergroundcar
parks,forexample,somevehiclepartsmspoilj
ers,forexamplemmaycomeintocontactwith theground.Thereisariskofmaterialdamage.
Makesurethatthereissufficientgroundclearj
ance.
MDriver'sPackage:drivingin
maximumspeedrange
WARNING
Athighspeeds,damagetovehiclepartscan adverselyaffectvehiclehandlingcharacterisj
tics.Suchpartsincludethetyres,underbody andpartsforimprovingaerodynamics.Thereisariskofaccident.HavethedamagerectifiedbyaServicePartnerofthemanufactureroranjotherqualifiedServicePartneroraspecialist
workshop.Donotdriveathighspeeduntilthe
damagehasbeenrepaired.
Roofrack
General
Roofracksareavailableasspecialequipment.
Safetynote
WARNING
Whendrivingwitharoofload,forexamplewith
aroofrack,thehighercentreofgravitycan
meanthatdrivingsafetyisnolongerguaranj
teedincriticaldrivingsituations.Thereisarisk
ofaccidentormaterialdamage.Donotdeactij
vateDynamicStabilityControlDSCwhendrivj
ingwitharoofload.
Roofstripwithflaps
Themountingpointsarelocatedontheroofstrip
abovethedoors.
Foldthecoveroutwards.
Fitting Followtheinstallationinstructionsfortheroof
rack.
Makesurethatthereissufficientspacetoraise
andopentheglasssunroof.
Loads Aloadedroofrackaltersthevehicle'sroadbej
haviourandsteeringresponsebyshiftingitscenj
treofgravity.
Whenloadinganddriving,bearthefollowingin mind:
'xDonotexceedthepermittedroofandaxle
loadsorthepermittedgrossweight.'xMakesurethatthereissufficientspaceto
raiseandopentheglasssunroof.Seite332DRIVINGHINTSDrivingprecautions332
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'xDistributetheroofloadevenly.'xTheroofloadmustnotbespreadoveralarge
area.'xPlaceheavyitemsofluggageatthebottom.'xSecurelyfastentheluggage,forexamplewith
tensioningstraps.'xDonotallowobjectstoprotrudeintothe
swingrangeofthebootlid.'xDrivecautiouslyandavoidsuddenacceleraj tion,brakingorcornering.
Drivingonaracingtrack
WARNING
Thevehicleisnotdesignedforuseinmotorj sportcompetitionsorsimilar.Thereisariskof
accident.Donotusethevehicleinmotorsport
competitionsorsimilar.
Thehighermechanicalandthermalloadsinj volvedindrivingonracingtracksleadtoinj
creasedwear.Thiswearisnotcoveredbythe
warranty.
Whendrivingonaracetrack,graduallyincrease thedurationoftheload.
Beforeandafterdrivingonaracingtrack,have
thevehiclecheckedataServicePartnerofthe
manufactureroranotherqualifiedServicePartner
oraspecialistworkshop.
Thestandardbrakepadsandtheweardisplays
arenotdesignedforracingtrackoperation.
Furtherinformationandadvicecanbeobtained
fromaServicePartnerofthemanufactureroranj
otherqualifiedServicePartneroraspecialist
workshop.
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SavingfuelVehicleequipment
Thischapterdescribesallstandard,country-spejcificandoptionalequipmentavailableforthe
modelseries.Itmaythereforedescribeequipj
mentandfunctionswhicharenotinstalledin yourvehicle,forexampleonaccountofthespejcialequipmentselectedorthecountryspecificaj
tion.Thisalsoappliestosafety-relevantfuncj
tionsandsystems.Pleasecomplywiththe
relevantlawsandregulationswhenusingthe
correspondingfunctionsandsystems.
Reducingfuelconsumption
General
Thevehiclepossesseswide-rangingtechnoloj
giesforreducingconsumptionandemissionlevj
els.
Fuelconsumptiondependsonvariousfactors.
Anumberofmeasures,suchasamoderatedrivj ingstyleandregularmaintenance,caninfluencefuelconsumptionandreducetheburdenonthe
environment.
RemoveunnecessaryloadsExtraweightincreasesfuelconsumption.
Removemountedpartsafteruse Removeunneededroofracksafteruse.Add-onaccessoriesonthevehiclecanadverselyaffectitsaerodynamicperformanceandincrease
fuelconsumption.
Closewindowsandtheglass
sunroof
Anopenglasssunrooforopenwindowincreasedragandconsequentlyfuelconsumption.
Tyres
GeneralTyrescanhavedifferingeffectsonconsumption
figures.Consumptioncanbeaffectedbythesize ofthetyres,forexample.
Checktyreinflationpressure
regularly
Checkand,ifnecessary,correctthetyreinflationpressuresatleasttwiceamonthandbeforesetj
tingoffonalongerjourney.
Insufficienttyreinflationpressureenlargesthe
rollingresistanceandthusincreasesfuelconj sumptionandtyrewear.
Forfurtherinformation:
Tyreinflationpressureinformation,see
page 338.
Driveoffimmediately Donotwarmuptheenginewiththevehicleatastandstill,butinsteadsetoffstraightaway,drivj
ingatmoderateenginespeeds.
Thisbringsthecoldengineuptooperatingtemj peratureasquicklyaspossible.
Thinkahead
Anticipatingtheroadsituationandadoptinga
smoothdrivingstylewillreducefuelconsumpj tion.
Avoidacceleratingandbrakingunnecessarily. Keepanappropriatedistancefromthevehicleahead.
Avoidhighenginespeeds
Drivingatlowenginespeedsreducesfuelconj
sumptionandwear.
Payattentiontotheoptimumshiftindicatorin thevehicle,iffitted.Seite334DRIVINGHINTSSavingfuel334
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MakeuseofoverrunmodeWhenapproachingaredtrafficlight,takeyourfootofftheacceleratorandallowthevehicletoroll.
Ondownwardstretches,takeyourfootoffthe acceleratorandallowthevehicletoroll.
Thefuelsupplyisinterruptedinoverrunmode.
Switchofftheengineifstopping
forlongerperiods
Stoppingtheengine
Whenyoustopthevehicleforlongerperiods,for
exampleattrafficlights,railwaycrossingsorin trafficjams,switchofftheengine.
AutomaticStart/Stopfunction TheAutoStartStopfunctionofthevehicleshutsofftheengineautomaticallyduringastop.
Iftheengineisswitchedoffandthenstarted again,thefuelconsumptionandemissionsarereducedcomparedwithapermanentlyrunning
engine.Savingscanbemadejustbystopping
theengineforafewseconds.
Fuelconsumptionalsodependsonotherfactors,
suchasdrivingstyle,roadcondition,maintej
nanceorenvironmentalfactors,forexample.
Switchofffunctionswhichare
notcurrentlyrequired
Functionssuchasseatheatingorrearwindow
heatingrequireagreatdealofenergyandinj creasefuelconsumption,especiallyincitytraffic
andstop-and-gotraffic.
Switchthesefunctionsoffiftheyarenotrej
quired.
Havemaintenanceworkcarried
out
Havethevehicleservicedregularlytoachieve
optimaleconomyandlifetime.BMWrecomjmendshavingmaintenanceworkcarriedoutbya
BMWServicePartner.
PleasealsoseetheBMWMaintenanceSystem.Seite335SavingfuelDRIVINGHINTS335
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RefuellingVehicleequipment
Thischapterdescribesallstandard,country-spejcificandoptionalequipmentavailableforthe
modelseries.Itmaythereforedescribeequipj
mentandfunctionswhicharenotinstalledin yourvehicle,forexampleonaccountofthespejcialequipmentselectedorthecountryspecificaj
tion.Thisalsoappliestosafety-relevantfuncj
tionsandsystems.Pleasecomplywiththe
relevantlawsandregulationswhenusingthe
correspondingfunctionsandsystems.
Noteswhenrefuelling
General Beforerefuelling,observethenotesonthefuelgrade.
Whenrefuelling,insertthefillernozzlefullyinto
thefillerneck.Liftingthefillernozzleduringrefuj
ellingresultsinthefollowing:
'xThesupplyoffuelisstoppedtoosoon.'xFuelvapourrecoveryislesseffective.
Thefueltankisfullwhenthefillernozzlecutsout forthefirsttime.
Pleasecomplywiththesafetyregulationsdisj
playedatfillingstations.
Forfurtherinformation:
Fuelquality,seepage 364.
Safetynotes
NOTE
Iftherangedropsbelow50km,30miles,the enginemaynolongerbesuppliedwithsuffij
cientfuel.Enginefunctionisnolongerensured.
Thereisariskofmaterialdamage.Refuelin
goodtime.
NOTE
Fuelsarepoisonousandaggressivesubstanj ces.Overfillingthefueltankcandamagethe
fuelsystem.Iffuelcomesintocontactwith
paintwork,itcandamageit.Theenvironmentis
polluted.Thereisariskofmaterialdamage.
Avoidoverfilling.
Fueltankcap
Opening
1.Toopenthefueltankfillerflap,pushonthe
upperedge,arrow.Thefueltankfillerflap opens.Seite336MOBILITYRefuelling336
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2.Turnthefueltankcapanticlockwise.3.Placethefueltankcapintheholderonthe
fuelfillerflap.
Closing
WARNING
Theretainingstrapofthefueltankcapmaybej
cometrappedandcrushedwhenturningthe
captocloseit.Itwillthennotbepossibleto
closethecapproperly.Fuelorfuelvapourscan
leakout.Thereisariskofinjuryormaterial damage.Makesurethattheretainingstrap
doesnotgettrappedandcrushedwhenclosj
ingthecap.
1.Fitthefuelfillercapandturnclockwiseuntilit
isclearlyheardtoclickintoplace.2.Pressonthefueltankfillerflapuntilitenj
gages.
Emergencyrelease
Incertainsituations,itmaybenecessarytounj
lockthefueltankfillerflapmanually,forexample
ifthereisanelectricalfault.
HavethefueltankfillerflapunlockedbyaServj
icePartnerofthemanufactureroranotherqualij
fiedServicePartneroraspecialistworkshop.Seite337RefuellingMOBILITY337
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WheelsandtyresVehicleequipment
Thischapterdescribesallstandard,country-spejcificandoptionalequipmentavailableforthe
modelseries.Itmaythereforedescribeequipj
mentandfunctionswhicharenotinstalledin yourvehicle,forexampleonaccountofthespejcialequipmentselectedorthecountryspecificaj
tion.Thisalsoappliestosafety-relevantfuncj
tionsandsystems.Pleasecomplywiththe
relevantlawsandregulationswhenusingthe
correspondingfunctionsandsystems.
Tyreinflationpressure
General
Atyre'sconditionandinflationpressureinfluence thefollowing:
'xLifetimeofthetyre.'xDrivingsafety.'xDrivingcomfort.'xFuelconsumption.
Safetynote
WARNING
Atyrewithtoolittleornotyreinflationpressure
canheatupsignificantlyandsustaindamage.
Handlingcharacteristics,forexamplesteering
andbraking,willbeimpairedasaresult.There
isariskofaccident.Checkthetyreinflation
pressureregularlyandadjustasnecessary,for
exampletwiceamonthorbeforeanylongjourj
ney.
Tyreinflationpressure
information
Onthedoorpillar
Thetyreinflationpressureinformationisshown
onthedoorpillarofthedriver'sdoor.
Thetyreinflationpressuredataisvalidforthe
tyresizesandrecommendedtyremakeswhich
havebeenratedbythevehiclemanufactureras suitableforthevehicleconcerned.
Thetyreinflationpressuresstatedfortherej
spectiveloadconditionsapplydependingonthe
vehicle'sactualloadcondition.Example:fora partiallyloadedvehicle,theoptimumtyreinflationpressureistheonestatedforapartiallyloaded
vehicle.
Moreinformationregardingwheelsandtyrescan
beobtainedfromaServicePartnerofthemanuj
factureroranotherqualifiedServicePartnerora specialistworkshop.
ForAustralia/NewZealand
WARNING
Theinflationpressuresonthetyrelabelareapj plicableonlyfortyresexplicitlymentionedon
thelabel.Inflationpressuresfortyresthatmay
becoveredbythelabelmbysize,speedcatej
goryandloadrating/loadindexmbutnotexplicj
itlymentionedonthelabelmaybedifferent.
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Pleaseobtainadequateinflationpressuresinaccordancewiththetyremanufacturer'sspecij
ficationsfromyourtyredealer.
Onthecontroldisplay Thecurrenttyreinflationpressuresforthe
mountedtyrescanbedisplayedonthecontrol
display.
Toensurethattheyaredisplayedcorrectly,the tyresizesmustbestoredinthesystemandmust havebeensetforthefittedtyres.
Thecurrenttyreinflationpressurevalueisshown oneachtyre.
Checkingthetyreinflation
pressure
GeneralTyresheatupwhiledriving.Thetyreinflation
pressureincreaseswiththetemperatureofthe
tyre.
Tyreshaveanatural,uniformlossoftyreinflation
pressure.
Inflatingdevicescandisplayapressurethatmay
beupto0.1bartoolow.
Checkingusingtyreinflation
pressureinscriptionsonthedoor
pillar1.Determinethespecifiedtyreinflationpresj
suresforthetyresinstalledonthevehicle.2.Checkthetyreinflationpressureinallfour tyres,usingapressuregauge,forexample.3.Correctthetyreinflationpressureifthecurjrenttyreinflationpressuredeviatesfromthe
specifiedtyreinflationpressure.4.Checkwhetherallvalvecapsarescrewed
ontothetyrevalves.
Thetyreinflationpressureinformationonthe
tyreinflationpressureplateonthedoorpillaronly
relatestocoldtyresortyresatthesametemperj
atureastheambienttemperature.
Onlycheckthetyreinflationpressureswhenthe tyresarecold,i.e.:'xIfthevehiclehasbeendrivenadistanceofno
morethan2km,1.25miles.'xIfthevehiclehasnotmovedagainforatleast 2hoursafterajourney.
Regularlycheckthetyreinflationpressureofthesparewheelintheluggagecompartmentand
correctthepressureifnecessary.
Checkingusingthetyreinflation
pressureinformationonthecontrol
display
1.CAR2.Vehiclestatus3.TyrePressureMonitor4.Checkifthecurrenttyreinflationpressures
matchthespecifiedtyrepressurevalue.5.Correctthetyreinflationpressureifthecurj renttyreinflationpressuredeviatesfromthe
specifiedtyreinflationpressure.
Afteradjustingthetyreinflation
pressure
ForrunflatindicatorRPA:
ReinitialisetherunflatindicatorRPA.
WiththeTyrePressureMonitor:
Thecorrectedtyreinflationpressuresareapplied automatically.Makesurethatthecorrecttyre
settingshavebeenmade.
Fortyresthatcannotbefoundinthetyreinflaj tionpressureinformationonthecontroldisplay,
resettheTyrePressureMonitor.
Speedcode
DesignationMaximumspeedQupto160km/h,100mphRupto170km/h,106mphSupto180km/h,112mphSeite339WheelsandtyresMOBILITY339
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DesignationMaximumspeedTupto190km/h,118mphHupto210km/h,131mphFupto240km/h,150mphWupto270km/h,167mphYupto300km/h,186mph(Y)above300km/h/186mph
Tyretread
SummertyresThetyretreaddepthshouldnotbelessthan3mm,0.12in,otherwisethereisahighriskofaquaplaning.
Wintertyres
Thetyretreaddepthshouldnotbelessthan
4mm,0.16in,itssuitabilityforwinteruseislimij
ted.
Minimumtreaddepth
Wearindicatorsaredistributedaroundthecirj cumferenceofthetyre.Thesewearindicators
havethelegallyprescribedminimumheightof
1.6mm,0.06in.
Thepositionsofthewearindicatorsareidentij
fiedonthetyre'ssidewallbyTWI,TreadWear
Indicator.
Tyredamage
General
Inspecttyresregularlyfordamage,thepresenceofforeignbodiesandwear.
Vehiclebehaviourthatmayindicatetyredamage
orotherfaults:
'xUnusualvibrations.'xUnusualtyreorrunningnoises.'xUnusualvehicleresponse,suchasproj nouncedpullingtotheleftorright.
Damagecanbecausedbythefollowingsituaj
tions,forexample:
'xDrivingoverkerbs.'xRoaddamage.'xInsufficienttyreinflationpressure.'xOverloadingthevehicle.'xIncorrecttyrestorage.
Safetynotes
WARNING
Ifthetyresaredamaged,thetyreinflationpresj suremaybereduced,whichinturncould
causeyoutolosecontrolofthevehicle.There
isariskofaccident.Ifyoususpecttyredamage
whileyouaredriving,immediatelyreduce
speedandbringthevehicletoastop.Havethe
wheelsandtyreschecked.Todoso,carefully
drivetoaServicePartnerofthemanufacturer
oranotherqualifiedServicePartneroraspej
cialistworkshop.Ifnecessary,havethevehicle towedortransportedthere.Donotrepairdamj
agedtyres.Havethemreplaced.
WARNING
Tyrescanbecomedamagedbyrunningover
obstacles,forexamplekerbsorroaddamage, athighspeed.Largerwheelshaveasmallertyrecross-section.Thesmallerthetyrecross-
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