BMW M4 2021 Owners Manual

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DrivingStabilityControlSystemsVehicleequipment
Thischapterdescribesallstandard,country-spejcificandoptionalequipmentavailableforthe
modelseries.Itmaythereforedescribeequipj
mentandfunctionswhicharenotinstalledin yourvehicle,forexampleonaccountofthespejcialequipmentselectedorthecountryspecificaj
tion.Thisalsoappliestosafety-relevantfuncj
tionsandsystems.Pleasecomplywiththe
relevantlawsandregulationswhenusingthe
correspondingfunctionsandsystems.
Anti-lockBrakeSystemABS
ABSpreventsthewheelsfromlockingwhenthe
brakesareapplied.
Steeringcontrolisretainedevenduringfullbrakj ing,whichenhancesactiveroadsafety.
ABSisoperationaleachtimetheengineisstarjted.
Brakeassist
Whenthebrakepedalisdepressedquickly,the systemautomaticallyappliesmaximumbrakingpower.Thiskeepsthestoppingdistanceasshortaspossibleinfullbrakingsituations.Theadvanj
tagesofferedbytheAnti-lockBrakeSystem
ABScanalsobeutilisedtothefull.
Thepressureonthebrakeshouldbemaintained
forthedurationofthefull-brakingprocess.
Adaptivebrakeassist
InconjunctionwithActiveCruiseControlACC, thissystemensuresthatthebrakesrespond
evenmorequicklywhenbrakingincriticalsituaj
tions.
Drive-offassistant
Principle
Thesystemprovidessupportwhendrivingoffon upwardgradients.
Drivingoff
1.Holdthevehicleinplacewiththefootbrake.2.Releasethefootbrakeanddriveoffwithoutdelay.
Afterthefootbrakeisreleased,thevehicleis
heldinplaceforapproximately2seconds.
Dependingonthevehicle'sload,thevehiclemay rollbackwardsalittle.
Mmenu
Principle
TheM1andM2buttonsonthesteeringwheel canbeusedtostoreindividualsettingsforthe
vehicleandcallthemupagainwhenrequired.
General Thebuttonsaresetintheconfigurationthatis
appropriateforthevehicleandcanbeindividually
adjusted.
Ifdrive-readystateisswitchedonafterthevehij
clehasbeeninreststate,anefficientvehicle
stateisactivebydefault.Configurationviathe buttonsisdeactivated.
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Safetynote
WARNING
Dependingonthesettings,DSCmayonlybe
availabletoalimitedextentornotatallwhen
theM1orM2buttonisactivated.Thereisa
riskofaccidentormaterialdamage.Observe
thesettingsforDSCiniDriveandreactactively
ifnecessary.Adjustthedrivingstyleandreactif
necessary.
Settings
Thesettingsforthefollowingsystemscanbe storedfortheM1orM2buttons:
Symj
bolMeaningEngine:programmesofMEngine
DynamicsControl,seepage 160.MSteptronicsporttransmission:
Transmission:switchingmodesand
Drivelogicprograms.
Drivelogic,seepage 158.Manualtransmission:
GearShiftAssist.:enginespeedadj
justmentongearchange.
GearShiftAssistant,seepage 153.Chassis:programmesoftheadapj
tiveMsuspension,seepage 293.Steering:programmesofServoj
tronic,seepage 235.Brake:programsforthebrake,see
page 236.DSC:DynamicStabilityControl,
DSC,seepage 236,andMDynamic
Mode,MDM,seepage 237.Dependingontheequipment:M
TractionControl:MTractionControl,
seepage 239.Symj
bolMeaningStart/Stop:AutomaticStart/Stop
function,seepage 143.SoundControl:soundcontrol,see
page 161.
Overview
Buttonsonthesteeringwheel
ButtonFunctionM1M2
Buttoninthecentreconsole
SETUP
Configuring ViaiDrive
1.CAR2.Mmenu3.ConfigureM1orConfigureM24.Selectthedesiredsetting.5.Selectthedesiredchannel.
Theindividualsettingsaresavedfortheconfiguj
rationthatiscurrentlybeingused.
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WhenM1orM2isactive,anychangestothesettingareappliedimmediately.
Usingthebutton
Areducednumberofsystemsandfunctionscan beadjusteddirectly.1.Pressthebutton.2.SelecttherequiredsettingbyturningtheController.3.Selecttherequiredprogrambypressingthe
Controller.
Activating
Presstherelevantbuttononthesteeringwheel:
'xActivateM1.'xActivateM2.
IfDSCOFForMDMissetinConfigureM1or
ConfigureM2,amessageappearsintheinj
strumentcluster.Thismessageisoperatedby pressingthebuttonagain.
Deactivating
Presstherelevantbuttononthesteeringwheel again.
Resettingtheconfiguration
Individualsettingscanberesettodefaultvalues.
1.CAR2.Mmenu3.ConfigureM1orConfigureM24.Reset5.Yes
Tointerruptresetting:No
DisplayintheinstrumentclusterSymbolDescriptionSymbolilluminated:correspondj
ingconfigurationisactivated.Symbolilluminatesandaddij
tionalletteringCannotbe
activatedappears:configuration
cannotbeactivatedduetothe
currentdrivingsituation.
Reactivatetheconfiguration
oncetheletteringdisappears.
MMODE
Principle
Thedrivingexperiencecanbeadaptedtothesitj
uationusingvariousprograms.
General Thefollowingprogramsareavailable:
'xROAD'xSPORT'xDependingontheequipmentversion:TRACK
Safetynotes
WARNING
Thesystemdoesnotrelieveyouofyourperj sonalresponsibilitytoassessthevisibilityconj
ditionsandtrafficsituationcorrectly.Thereisa
riskofaccident.Adaptyourdrivingstyletothe
trafficconditions.Observethetrafficsituation
andinterveneactivelyifthesituationwarrantsit.
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WARNING
Displaysandwarningsdonotrelieveyouof
yourpersonalresponsibility.Systemlimitations
canmeanthatwarningsorsystemresponses arenotissuedorareissuedtoolate,incorrectly
orwithoutjustification.Thereisariskofaccij
dent.Adaptyourdrivingstyletothetrafficconj
ditions.Observethetrafficsituationandinterj veneactivelyifthesituationwarrantsit.
Overview
Buttoninthevehicle
MMODE
Programs
ROAD
'xAllIntelligentSafetySystemsareswitched
on.'xAllDriverAssistanceSystemsareavailable.
SPORT
TheIntelligentSafetySystemsareswitchedon
accordingtotheindividualsettings.
Thefollowingsystemsaredeactivated,dependj
ingontheequipment:
'xManualSpeedLimiter.'xCruiseControl.'xActiveCruiseControlwithStop&Gofunction ACC.'xSpeedLimitAssist.'xSpeedLimitInfowithpreview.'xSteeringandlanecontrolassistant.'xTrafficjamassistant.'xLanechangeassistant.
Whenasystemisactivated,thereisanautoj
maticswitchtotheROADprogram.
Dependingontheequipment:
TRACK
TheIntelligentSafetySystemsareswitchedoff.
Inadditiontothedeactivatedsystemsinthe
SPORTprogramme,thefollowingsystemsare
deactivated,dependingontheequipment:
'xSpeedLimitInfowithno-overtakingindicator.'xFront-endcollisionwarningwithbrakingfuncj
tion.'xAvoidanceassistant.'xRearcollisionprevention.'xHazardflashing,whichoccursintheeventof suddenbrakingshortlybeforereachingastandstill,isdeactivated.'xTheControlDisplayisswitchedoff.'xTheradioissettomute.
Selectingachannel
Pressthebuttontoswitchbetween
ROADandSPORT.
Dependingontheequipmentversion:
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ToswitchtotheTRACKprogram,pressandholdthebuttonuntilamessageappearsonthe
controldisplay.Confirmthemessage.
Pressingthebuttonagainswitchesbacktothe ROADprogram.
Display Thedisplayintheinstrumentclusterandthe
viewoftheHead-UpDisplaychangeasfollows basedontheselectedprogram:ProgrammeDisplayROADStandardview.SPORTMview:individuallysetwidgj
etsaredisplayed.Dependingon
theequipment
version:
TRACKMview:individuallysetwidgj
etsaredisplayed.
AdditionalletteringTRACK intheinstrumentcluster.
Servotronic
Principle
Servotronicisaspeed-dependentpowersteerj
ingsystem.
Thesystemprovidesmoresteeringforceassisj tanceatlowerspeedsthanathigherspeeds.
Thismakesiteasiertopark,forexample,and
providesafirmersteeringfeelwhendrivingat
higherspeeds.
Inaddition,thesteeringforceisadaptedaccordj ingtotheprogramme,sothatafirm,sportyfeel
oracomfortablesteeringresponseisconveyed.
General
Thesystemoffersseveraldifferentsteering
forcetunings.
ProgrammeSteeringforcetuningCOMFORTLowsteeringforces,goodroadj
wayfeedback.SPORTHighsteeringforces,maximum
roadwayfeedback.
Selectingachannel
Usingthebutton
PressthebuttonandselecttherequiredprogramontheControlDisplay.
ViaiDrive
Itispossibletoconfiguretherequiredprogram
fortheM1orM2buttons.
1.CAR2.Mmenu3.ConfigureM1orConfigureM24.Steering5.Selectthedesiredchannel.
Thesettingisacceptedimmediatelywhen
theM1orM2configurationisactive.
Toactivatetherequiredconfigurationwiththe
selectedsettings,pressthecorrespondingbutj tononthesteeringwheel:
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DisplayintheinstrumentclusterWhenthewidgetdisplayisactivatedin
theinstrumentclusterforMSETUP,the
selectedprogrammeisdisplayed.
Forfurtherinformation:
Widgetsintheinstrumentcluster,seepage 164.
Brake
Principle
Thesensitivityofthebrakepedalmovementsto brakingcanbeadjusted.
General
Thesystemoffersdifferentlevelsofbrakesensij tivity:
ProgrammeResponsivenessCOMFORTComfortablebraking.SPORTSensitivebraking.
Selectingachannel
Usingthebutton
PressthebuttonandselecttherequiredprogramontheControlDisplay.
ViaiDrive
Itispossibletoconfiguretherequiredprogram fortheM1orM2buttons.1.CAR2.Mmenu3.ConfigureM1orConfigureM24.Brake5.Selectthedesiredchannel.
Thesettingisacceptedimmediatelywhen
theM1orM2configurationisactive.
Toactivatetherequiredconfigurationwiththe
selectedsettings,pressthecorrespondingbutj tononthesteeringwheel:
'x'x
Displayintheinstrumentcluster
Whenthewidgetdisplayisactivatedin
theinstrumentclusterforMSETUP,the selectedprogrammeisdisplayed.
Forfurtherinformation:
Widgetsintheinstrumentcluster,seepage 164.
DynamicStabilityControl DSC
Principle
Thesystemreducesdrivepowerandappliesthe brakesonindividualwheels,therebyhelping,
withinthelimitsimposedbyphysics,tokeepthe
vehiclesafelyoncourse.
General
DSCdetectsthefollowingunstabledrivingconj
ditions,forexample:
'xLossoftractionattherearwhichcanleadto
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'xLossofgripatthefrontwheelswhichcan
leadtoundersteer.
Safetynotes
WARNING
Thesystemdoesnotrelieveyouofyourperj sonalresponsibilitytoassessthetrafficsituaj
tioncorrectly.Duetosystemlimitations,itcanj
notrespondindependentlyandappropriatelyin
alltrafficconditions.Thereisariskofaccident. Adaptyourdrivingstyletothetrafficconditions.
Observethetrafficsituationandinterveneacj
tivelyifthesituationwarrantsit.
WARNING
Whendrivingwitharoofload,forexamplewith
aroofrack,thehighercentreofgravitycan meanthatdrivingsafetyisnolongerguaranjteedincriticaldrivingsituations.Thereisarisk
ofaccidentormaterialdamage.Donotdeactij vateDynamicStabilityControlDSCwhendrivj
ingwitharoofload.
Overview
Buttoninthevehicle
DSCOFF
Deactivate/activateDSC GeneralDrivingstabilityduringaccelerationandcorneringisrestrictedifDSCisdeactivated.
Toassistdrivingstability,re-activateDSCas soonaspossible.
DeactivatingDSC HoldthebuttondownuntilDSCOFFisdisplayedintheinstrumentclusterand
theDSCOFFindicatorlampisilluminated.
ActivatingDSC Pressthebutton.
DSCOFFandtheDSCOFFindicator
lampsareextinguished.
Display Intheinstrumentcluster
DSCOFFisdisplayedintheinstrumentcluster
whenDSCisdeactivated.
Indicatorandwarninglamps Iftheindicatorlampisilluminated:DSCis
deactivated.
Iftheindicatorlampisflashing:DSCis regulatingtheaccelerationandbraking
forces.
Iftheindicatorlampisilluminated:DSChas
failed.
MDynamicMode
Principle
MDynamicModeMDMallowsdrivingwith
higherlongitudinalandtransverseacceleration
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ondrycarriageways,butwithrestricteddriving
stability.
Onlyintheabsolutelimitoftherangedoesthe
systemengageforstabilitypurposesbyreducing
theenginepowerandbybrakesappliedtothe wheels.Inthisdrivingsituation,additionalsteerj
ingcorrectionsmayberequired.
General ItmaybeusefultoactivateMDMbrieflyinthe
followingexceptionalsituations:'xWhendrivinginslushoronuncleared,snow- coveredroads.'xIfthevehiclehastoberockedoutoforstarjtedindeepsnoworonaloosesurface.'xWhendrivingwithsnowchains.
Toincreasedrivingstability,activateDSCagain.
Safetynote
WARNING
WithMDynamicModeactivatedstabilisingenj
gagementsareonlycarriedouttoareduced
degree.Thereisariskofaccidentormaterial
damage.Adaptyourdrivingstyletothetraffic
conditions.Observethetrafficsituationandinj
terveneactivelyifthesituationwarrantsit.In
theeventofawarning,donotmovethesteerj
ingwheelunnecessarilyabruptly.
Overview
Buttoninthevehicle
DSCOFF
Activating/deactivatingMDM
ActivatingMDM Pressthebutton.TheMDMandDSCOFFsymbolsin
theinstrumentclusterilluminate.
DeactivatingMDM Pressthebutton.
TheMDMandDSCOFFsymbolsno
longerilluminate.
ViaiDrive MDynamicModeMDMcanbeconfiguredfortheM1orM2buttons.1.CAR2.Mmenu3.ConfigureM1orConfigureM24.DSC5.MDM
Toactivatetherequiredconfigurationwiththe
selectedsettings,pressthecorrespondingbutj tononthesteeringwheel:
'x'x
Amessageappearsintheinstrumentcluster.
Thismessageisoperatedbypressingthebutton
again.
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DisplayintheinstrumentclusterSymbolDescriptionSymbolsilluminate:
MDynamicModeisactivated.DSCindicatorlampalsoflashes:
MDynamicModeisregulating
thedrivingandbrakingforces.Theindicatorlampsilluminate:
MDynamicModeorDSChas
failed.
MTractionControl
Principle
WithMTractionControl,thewheel-slipbehavj iouroftherearwheelsduringaccelerationcanbeadjustedinlevelsbyregulatingthedrivingpower
accordingly.
General
IfDSCisdeactivatedafterthevehiclehasbeen
inthereststate,theMTractionControllevelis settoOFF/level0.
Safetynote
WARNING
DeactivatingDynamicStabilityControlDSCrej
strictsdrivingstability.Dependingontheselecj
tedMTractionControlsetting,thewheelscan
spinslightlyorsignificantly,whichrestrictsdij
rectionalstabilitywhenaccelerating,forexamj
ple.Thereisariskofaccidentormaterialdamj
age.Adaptyourdrivingstyletothetraffic
conditions.Observethetrafficsituationandinj terveneactivelyifthesituationwarrantsit.
Operatingrequirements DynamicStabilityControlDSCisdeactivated.
Forfurtherinformation:
DynamicStabilityControl,DSC,seepage 236
Settings
Usingthebutton1.Pressthebutton.2.MTractionControl3.Selectthedesiredsetting:'xOFF/level0:supportswitchedoff.Signifij
cantwheelspinpossible.'xLevel10:maximumsupport.Slightwheel spinpossible.
ViaiDrive
Itispossibletoconfiguretherequiredprogram fortheM1orM2buttons.
1.CAR2.Mmenu3.ConfigureM1orConfigureM24.DeactivateDSCaccordingly.5.MTractionControl6.Selectthedesiredsetting.
Thesettingisacceptedimmediatelywhen
theM1orM2configurationisactive.Seite239DrivingStabilityControlSystemsCONTROLS239
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Toactivatetherequiredconfigurationwiththe
selectedsettings,pressthecorrespondingbutj tononthesteeringwheel:'x'x
Displaysintheinstrument
cluster
SymbolDescriptionDSCisdeactivated.DSCindicatorlightalsoflashing:
MTractionControlisregulating
thedrivingpower.MTractionControlleveldisplay.Symbolflashing:MTraction
Controllevelisbeingchanged.
MDriftAnalyser
Principle
TheMDriftAnalyserdetectsandevaluates whenthevehicleisdrifting.
General
Forreasonsofsafety,theMDriftAnalysercan
onlybeusedwhennotonpublicroadsandwhen
inappropriateenvironmentalconditions.
Thehighermechanicalandthermalloadsinjvolvedwhendriftingleadtoincreasedwear.This
wearisnotcoveredbythewarranty.Checkthe
tyreconditionandtyretreaddepthbeforestartj ingtodrive.
Thedatacanberecordedasindividualdriftsor asthefulldistancetravelledinadriftsession.
MTractionControlsupportsthedriveraccording
tothesettings.
Forfurtherinformation:
MTractionControl,seepage 239.
Safetynote
WARNING
DeactivatingDynamicStabilityControlDSCrej strictsdrivingstability.Dependingontheselecj
tedMTractionControlsetting,thewheelscan
spinslightlyorsignificantly,whichrestrictsdij
rectionalstabilitywhenaccelerating,forexamj
ple.Thereisariskofaccidentormaterialdamj age.Adaptyourdrivingstyletothetraffic
conditions.Observethetrafficsituationandinj terveneactivelyifthesituationwarrantsit.
Activating/deactivating
General WhenactivatingtheMDriftAnalyser,Dynamic
StabilityControlDSCisdeactivated.
Thesystemautomaticallydetectswhenasingle
driftstartsandends.
Usingthebutton
1.Pressandholdthebutton.2.StartMDriftAnalyser3.TilttheControllertotheright.4.Activate5.Ifnecessary,OK
ViaiDrive
1.CAR2.Mmenu3.MDriftAnalyser4.TilttheControllertotheright.Seite240CONTROLSDrivingStabilityControlSystems240
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