BMW M4 2021 Owners Manual

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Sidestoragecompartment,left
Thereisastoragecompartmentontheleftside
oftheluggagecompartment.
Through-loadingsystem
Principle
Thebootcanbeexpandedbyfoldingdownthe
rearseatbackrests.
General Therearbackrestissplit40m20m40.Therear
seatbackrestsoneachsideandthemiddlepart
canbefoldeddownindividually.
Therearseatbackrestscanbefoldeddownfrom theluggagecompartment.Therearbackrests
canbefoldeddownindividuallyfromtherear.
Safetynotes
WARNING
Riskofentrapmentwhenfoldingdowntherear backrest.Thereisariskofinjuryormaterial
damage.Beforefoldingdown,makesurethat
theareaofmovementoftherearbackrestand
theheadrestraintiskeptclear.
WARNING
Ifarearseatbackrestisnotlocked,unsecured
cargomaybeflungintotheinterior,forexample
intheeventofanaccidentorduringbrakingor
evasivemanoeuvres.Thereisariskofinjury.
Makesurethattherearseatbackrestislocked
afterithasbeenfoldedback.
WARNING
Iftheseatisnotadjustedproperlyorthechild seathasbeeninstalledincorrectly,thechildrej straintsystemmayhavelimitedstabilityormaynotbestableatall.Thereisariskofinjuryorevendeath.Makesurethatthechildrestraint
systemrestsfirmlyagainstthebackrest.Wherj everpossible,adaptthebackrestangleofall
therelevantseatbackrestsandadjusttheseats
correctly.Makesurethattheseatsandtheir
backrestsarecorrectlyengagedorlocked.If possible,adjusttheheightoftheheadrej
straints,orremovethem.
NOTE
Vehiclepartscanbedamagedwhenfolding downtherearbackrest.Thereisariskofmatej
rialdamage.Whenfoldingdown,makesure
thattheareaofmovementoftherearbackrest includingheadrestraintiskeptclear.
Foldingdowntherearbackrest
Fromtheluggagecompartment
Pullthecorrespondingleverintheluggagecomj
partmenttounlocktherearseatbackrest.
'xLeftlever:folddowntheleftandmiddlerear seatbackrests.'xRightlever:folddowntherightrearseatbackrest.Seite321LuggagecompartmentCONTROLS321
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Foldingbacktherearbackrest
Foldtherearbackrestbackintoseatpositionand
engage.
Foldingdownthemiddlepart
Pulltheleverandfoldthemiddlepartforwards.
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BMWM4technologyVehicleequipment
Thischapterdescribesallstandard,country-spejcificandoptionalequipmentavailableforthe
modelseries.Itmaythereforedescribeequipj
mentandfunctionswhicharenotinstalledin yourvehicle,forexampleonaccountofthespejcialequipmentselectedorthecountryspecificaj
tion.Thisalsoappliestosafety-relevantfuncj
tionsandsystems.Pleasecomplywiththe
relevantlawsandregulationswhenusingthe
correspondingfunctionsandsystems.
Highperformanceengine
General Thehigh-performanceenginegeneratesamaxijmumoutputof353kW,intheCompetition
model375kWandamaximumtorqueof
550Nm,intheCompetitionmodel650Nmfrom
adisplacementof3litres.Withitsspontaneous
responsiveness,averybroadusableengine
speedrangeisproduced.Themaximumengine
speediselectronicallyregulatedat7200rpm.
Duetothepowerfulenginedynamics,themaxij
mumenginespeedislimitedwhenthevehicleis
stationary.
Drivinghot
Duringtheenginewarm-upphase,thehighperj formanceenginerunsslightlymoreroughlydue
totheemissioncontrol.
Dependingonthesystem,thecoldstartiscarj riedoutwithanincreasedidlespeed,whichmakestheexhaustsystemlouder.
Forfurtherinformation:
Revolutioncounter,seepage 172.
Engineoiltemperature,seepage 172.
Mcompoundbrakes
General
Thehighperformancebrakesystemhasventilaj
tedcompoundbrakediscs.
Thespecificdesigncancausetemporaryfuncj
tionalnoisestooccurafteralongperiodoflow loading.
Thefunctionalnoiseshavenoeffectontheeffij ciency,operationalsafetyorenduranceofthe brake.
Brakingcorrectly Toavoidfunctionalnoises,itisdesirabletoload
thematregularintervalswithsomeshaperbrakj
ingoperations.Makesurethatthetrafficsituaj
tionpermitsthebrakingoperations.
Ifthebrakediscsarewet,thebrakesystemcan bebrakeddrytostopanynoise.
MCarbonceramicbrakes
General Thehighperformancebrakesystemhasventilaj
tedcarbon-ceramicbrakediscs.
Thematerial-specificpropertiescancauseinj
creasedfunctionalnoiseswhenbraking,forexj
ampleduringalongperiodoflowloadingor
shortlybeforethevehiclecomestoastandstillin
wetconditions.
Thefunctionalnoiseshavenoeffectontheeffij ciency,operationalsafetyandenduranceofthe brake.
Duetotheeffectofwetnessandsaltspray,for
example,afterusingacarwash,condensation overnight,drivinginrainetc.,thebrakingeffectmaycorrespondtoaconventionalbrakingsysj
tem.Thisreducedbrakingeffectcanbecomj
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pensatedforbygreaterpedalpressure,asneej
ded.
BrakingandwashingcorrectlyToavoidfunctionalnoises,itisdesirabletoload
thematregularintervalswithsomeshaperbrakj
ingoperations.Makesurethatthetrafficsituaj
tionpermitsthebrakingoperations.
Ifthebrakediscsarewet,thebrakesystemcan bebrakeddrytostopanynoise.
Firstcleanbrakediscsandcalliperswithasteam
cleanerorhigh-pressurecleanerbeforewashing
thevehicleinanautomaticwashingbayorcar
wash.Thispreventssaltcrystals,forexample,
fromcausingcrustydepositsorbuild-uptoform
ifthevehiclethenremainsstationaryforaperiod
oftime.Thecleaningeffectofautomaticcar
washesgenerallynotsufficientforthisinthe
wheelarea.
Drivetrain
Inthisvehicle,particularattentionispaidtothe
directconnectionfromtheenginetothedrivej train.Duetothetorsionallystiffdesignofthedrivetrain,asusualinasportscar,thetransmisj
sionofthetorqueiscanalsobeheard.
Whenthereareloadchanges,itcanthereforecauseclatteringnoises.Theclickingnoisesdo
notaffectthefunctionorlifetimeofthecompoj nents.
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DrivingprecautionsVehicleequipment
Thischapterdescribesallstandard,country-spejcificandoptionalequipmentavailableforthe
modelseries.Itmaythereforedescribeequipj
mentandfunctionswhicharenotinstalledin yourvehicle,forexampleonaccountofthespejcialequipmentselectedorthecountryspecificaj
tion.Thisalsoappliestosafety-relevantfuncj
tionsandsystems.Pleasecomplywiththe
relevantlawsandregulationswhenusingthe
correspondingfunctionsandsystems.
Runningin
General Movingpartsneedtoadjusttoeachother.
Thefollowingnoteswillhelptomaximisethevej hicle'slifetimeandefficiency.
DonotuseLaunchControlwhenrunningin.
Safetynote
WARNING
Newpartsandcomponentscancausesafety andDriverAssistanceSystemstorespondwithadelay.Thereisariskofaccident.Afternewpartshavebeeninstalledorifthevehicleisnew,drivemoderatelyandtakeactionpromptly
ifnecessary.Pleasecomplywithrunning-in
proceduresforthecorrespondingpartsand
components.
Engine,gearboxanddifferential
Upto2000km,1200miles
Drivewithalternatingrevolutionsandspeeds,but donotexceed5500rpmand170km/h,106mph.
Generallyavoidkick-downanddrivingunderfull load.
At2000km,1200milesHavemaintenanceconductadrive-inservice.
From2000km,1200milesto
5000km,3100miles
Revolutionsandvehiclespeedcangraduallybe
increasedtoacontinuousspeedof220km/h,
137mph.
Themaximumspeedof250km/h,155mphis
onlytobeusedbriefly,forexamplewhenoverj
taking.
Tyres Duetothemanufacturingprocess,newtyresdo
notachievetheirfullroadgripimmediately.
Drivemoderatelyforthefirst300km,200miles.
Brakesystem
MCompoundbrake:
BrakediscsandpadsoftheMCompoundbrake onlyachievetheirfulleffectivenessafterapj
prox.500km,300miles.Drivemoderatelyduring thisrunning-inperiod.
MCarbonceramicbrake:
BrakediscsandpadsoftheMCarbonceramic brakeonlyachievetheirfulleffectivenessafterapprox.1000km,600miles.Drivemoderately
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ClutchTheclutchonlybeginstofunctionoptimallyat
approximately500km,300miles.Engagethe clutchgentlyduringthisrunning-inperiod.
Afterfittingnewparts
Pleasecomplywiththerunning-inprocedures
againifthecomponentspreviouslyreferredto
arerenewed.
Generaldrivinginformation
Closingthebootlid
Safetynote
WARNING
Whenopen,thebootlidprotrudesabovethe vehicle,andintheeventofanaccident,brakingorevasiveaction,itcanendangervehicleoccuj
pantsandotherroadusers,ordamagethevej hicle.Thereisalsoariskofexhaustfumesenj
teringtheinteriorofthevehicle.Thereisarisk
ofinjuryormaterialdamage.Donotdrivewith
thebootlidopen.
Drivingwiththebootlidopen
Ifthereisnoalternativetodrivingwiththetailj
gateopen:
'xCloseallthewindowsandtheglasssunroof.'xAdjusttheblowertoahighsetting.'xMaintainamoderatespeed.
Iceonthewindows
NOTE
Thewindowlowersalittlewhenthedoorhanj dleispulled.Ifthereisfrost,thewindowmay
freezeupandcannotthenbelowered.Thereis ariskofmaterialdamage.Makesurethatthe
windowlowerswhenthedoorhandleispulled.
Removeanysnoworicefromthewindow.Do
notopenthedoorbyforce.
Hotexhaustsystem
WARNING
Hightemperaturesmayoccurunderthevehicle bodyduringdriving,forexamplebecauseofthe
exhaustsystem.Contactwiththeexhaustsysj
temcanleadtoburns.Thereisariskofinjury.
Donottouchthehotexhaustsystem,including
theexhaustpipe.
WARNING
Ifflammablematerials,forexampleleavesor
grass,comeintocontactwithhotpartsofthe
exhaustsystem,thesematerialscancatchfire.
Thereisariskoffireandinjury.Neverremove
theheatshieldsfittedhereorapplyunderseal
tothem.Makesurethatwhendriving,idlingor parking,noflammablematerialscancomeintocontactwithhotvehicleparts.
Exhaustgasparticlefilter
Principle
Theexhaustgasparticlefiltercollectssootpartij
cles.Thesootparticlesareburnedathightemj peraturestocleantheexhaustgasparticlefilter
asnecessary.
GeneralThecleaningprocesstakesafewminutes,durj
ingwhichthefollowingmayoccur:
'xTheenginemaytemporarilyrunalittle
roughly.'xAslightlyhigherenginespeedmayberej
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'xTheremaybeasmallamountofsmokefromtheexhaust,evenafterstoppingtheengine.'xNoise,forexamplecausedbytheradiatorfan
running,maybeheard,evensomeminutes afterstoppingtheengine.
Itisnormalfortheradiatorfantokeeprunning
forseveralminutes,evenaftershorttrips.
Cleaningtheexhaustgasparticle
filterwhiledriving
Variousdriverprofilesensurethattheexhaust
gasparticlefilterisself-cleaning.If,inadditionto theself-cleaningfunction,theexhaustgaspartijclefilterneedstobeactivelycleanedwhiledrivjing,aCheckControlmessageisdisplayed.
Proceedasfollowsthenexttimeyoudriveoutj sideofbuilt-upareasforaround30minutes.
'xDeactivatecruiseControlsystems.'xTakeyourfootofftheacceleratorrepeatedlyandallowthevehicletorollinoverrunmode.
Forfurtherinformation:
Makeuseofoverrunmode,seepage 333.'xIfpossible,driveatalternatingspeeds.
Radiosignals
WARNING
Certainvehiclefunctionsmaybeaffectedbyinj
terferencefromhigh-frequencyradiosignals.
Suchsignalsareoutputfromaseriesoftransj
missionsystems,forexamplefromairtraffic
beaconsorrelaystationsformobiletelecomj
munications.
WerecommendyouconsultyourServiceCenj treshouldyouexperienceanydifficulties.
Mobilecommunicationinthe
vehicle
WARNING
Thereisapossibilityofreciprocalinterference
betweenthevehicleelectronicsandmobile radiodevices.Radiationisgeneratedwhenmoj
bileradiodevicesaretransmitting.Thereisa
riskofinjuryormaterialdamage.Ifpossible, onlyusemobileradiodevices,forexamplemoj
biletelephones,intheinterioriftheyareconj
necteddirectlytoanexternalaerialinorderto eliminatereciprocalinterferenceandtodiverttheradiationawayfromthevehicle'sinterior.
Aquaplaning
Onwetorslushyroads,awedgeofwatercan formbetweenthetyresandtheroad.
Thissituation,knownasaquaplaning,meansthat
thetyrecanactuallylosecontactcompletelywith
theroadsurfaceandthevehiclecanneitherbe
steered,northebrakesproperlyapplied.
Drivingthroughwater GeneralPleasecomplywiththefollowingwhendrivingthroughwater:
'xDeactivatetheAutomaticStart/Stopfunction.'xOnlydrivethroughstillwater.'xOnlydrivethroughwateruptoamax.depth
of25cm,9.8in.'xDrivethroughwateratawalkingspeedofno
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Safetynote
NOTE
Drivingthroughexcessivelydeepwatertoofast
canresultinwaterenteringtheenginecomj partment,electricalsystemortransmission.
Thereisariskofmaterialdamage.Whendrivj
ingthroughwater,donotexceedthemaximum waterdepthandspeedspecifiedabove.
Safebraking
GeneralThevehicleisequippedwithanAnti-lockBrake
SystemABSasstandard.
Performfullbrakinginsituationsthatrequireit.
Thevehicleremainssteerable.Anyobstacles
canbeavoidedbysteeringassmoothlyaspossij
ble.
ApulsingofthebrakepedalshowsthattheAnti- lockBrakeSystemABSisregulating.
Incertainbrakingsituations,theperforatedbrake
discscancausefunctionalnoise.However,the functionalnoiseshavenoeffectontheefficiencyandoperationalsafetyofthebrakes.
Objectsintherangeofmovementof
thepedals
WARNING
Objectsinthedriver'sfootwellcanrestrictthe pedaltravelorblockapedalthathasbeen
pressed.Thereisariskofaccident.Ensurethat
itemsinthevehiclearestowedsecurelyand
cannotgetintothedriver'sfootwell.Onlyuse floormatsthataresuitableforthevehicleand
canbesecurelyfastenedtothefloor.Donot
useloosefloormats,anddonotplaceseveral
floormatsontopofoneanother.Makesure
thatthereissufficientspaceforthepedals.Enj
surethatfloormatsaresecurelyreattachedafj
terremoval,forexampleforcleaning.
Pedalfeelwhendrivingoff Whenthedrive-readystatehasbeenswitched
onafterthereststate,anunfamiliarpedalfeel canoccur,forexampleshortpedaltravel.Onceyouhavecompletelyreleasedthebrakepedal,thepedalfeelwillbebacktonormal.
Wetroads
Inwetweather,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.
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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.
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.HavethedamagerectifiedbyaServicePartnerofthemanufactureroranj
otherqualifiedServicePartneroraspecialist
workshop.Donotdriveathighspeeduntilthe
damagehasbeenrepaired.
Roofrack
General
Roofracksareavailableasspecialequipment.
Safetynote
WARNING
Whendrivingwitharoofload,forexamplewith
aroofrack,thehighercentreofgravitycan
meanthatdrivingsafetyisnolongerguaranj
teedincriticaldrivingsituations.Thereisarisk
ofaccidentormaterialdamage.Donotdeactij
vateDynamicStabilityControlDSCwhendrivj
ingwitharoofload.
Roofstripwithflaps
Themountingpointsarelocatedontheroofstrip
abovethedoors.
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