BMW 4 SERIES COUPE 2020 Owners Manual

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DrivingstabilitycontrolsystemsVehiclefeaturesandoptions
Thischapterdescribesallstandard,country-spejcificandoptionalfeaturesofferedwiththeseries. Italsodescribesfeaturesthatarenotnecessarilyavailableinyourvehicle,forinstance,duetothe
selectedoptionsorcountryversions.Thisalso
appliestosafety-relatedfunctionsandsystems. Whenusingthesefunctionsandsystems,theapplicablelawsandregulationsmustbeobj
served.
Anti-lockBrakingSystem ABS
ABSpreventslockingofthewheelsduringbrakjing.
Thevehiclemaintainsitssteeringpowereven
duringfullbrakeapplications,thusincreasingacj tivesafety.
ABSisoperationaleverytimeyoustarttheenj gine.
Brakeassistant
Whenyouapplythebrakesrapidly,thissystem
automaticallybooststhevehiclebrakingcapabilj itytothefurthestpossibleextent.Itreducesthebrakingdistancetoaminimumduringanemerjgencystop.ThissystemutilizesallofthecapajbilitiesprovidedbytheAntilockBrakeSystemABS.
Donotreducethepressureonthebrakepedal forthedurationoftheemergencystop.
DSCDynamicStability
Control
Concept
Withinthephysicallimits,thesystemhelpsto keepthevehicleonasteadycoursebyreducingenginespeedandbyapplyingbrakestotheindijvidualwheels.
Generalinformation DSCdetectsthefollowingunstabledrivingconjditions,forinstance:
'xFishtailing,whichcanleadtooversteering.'xLossoftractionofthefrontwheels,whichcanleadtoundersteering.
DynamicTractionControlDTC,refertopage 172,isaversionoftheDSCwhereforward
momentumisoptimized.
Safetyinformation
Warning
Thesystemcannotserveasasubstituteforthe driversspersonaljudgmentinassessingthe
trafficconditions.Basedonthelimitsofthe
system,itcannotindependentlyreacttoalltrafj ficsituations.Thereisariskofaccident.Adjust
drivingstyletotrafficconditions.Watchtraffic closelyandactivelyintervenewhereapproprij
ate.
Warning
Whendrivingwitharoofload,forinstancewith
roof-mountedluggagerack,thevehicle'scenj terofgravityishigher,whichincreasestheriskofthevehicletippingincriticaldrivingsituaj
tions.Theremaybeariskofaccidentorriskof
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damagetoproperty.DonotdeactivateDSC
DynamicStabilityControlwhendrivingwith
roofload.
Overview Buttoninthevehicle
DSCOFFbutton
Indicator/warninglights Theindicatorlightflashes:DSCcontrols
thedriveandbrakingforces.
Theindicatorlightlightsup:DSChas
malfunctioned.
DeactivatingDSC:DSCOFF Generalinformation
WhenDSCisdeactivated,drivingstabilityisrej ducedduringaccelerationandwhendrivingincurves.
Toincreasevehiclestability,activateDSCagain assoonaspossible.
DeactivatingDSC Pressandholdthisbuttonbutnotlonj
gerthanapprox.10seconds,untilthe
indicatorlightforDSCOFFlightsupintheinj strumentclusteranddisplaysDSCOFF.
DSCisswitchedoff.
Thesteeringand,dependingontheequipment,
suspensionaretunedforsportydriving.
ActivatingDSC Pressthebutton.
DSCOFFandtheDSCOFFindicator
lightgoout.
Indicator/warninglights WhenDSCisdeactivated,DSCOFFisdisplayedintheinstrumentcluster.
Theindicatorlightlightsup:DSCisdej
activated.
DTCDynamicTraction Control
Concept DTCisaversionoftheDSCDynamicStability
Controlwhereforwardmomentumisoptimized.
Thesystemensuresmaximumheadwayonspej
cialroadconditionsorlooseroadsurfaces,forinj
stanceunplowedsnowyroads,butwithsomej
whatlimiteddrivingstability.
WhenDTCisactivated,thevehiclehasmaxij
mumtraction.Drivingstabilityislimitedduring
accelerationandwhendrivingincurves.
Drivecarefully.
YoumayfinditusefultobrieflyactivateDTCunj
derthefollowingspecialcircumstances:
'xWhendrivinginslushoronuncleared,snow- coveredroads.'xWhendrivingofffromdeepsnoworlooseground.'xWhendrivingwithsnowchains.Seite172CONTROLSDrivingstabilitycontrolsystems172
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Deactivating/activatingDTC
DynamicTractionControl
ActivatingDTC Pressthebutton.
TRACTIONisdisplayedintheinstruj
mentclusterandtheindicatorlightforDSCOFF lightsup.
DeactivatingDTC Pressthebuttonagain.
TRACTIONandtheDSCOFFindicator
lightgoout.
xDrive
xDriveistheall-wheel-drivesystemofthevehij
cle.ConcertedactionbythexDriveandDSCDyj namicStabilityControlfurtheroptimizestraction
anddrivingdynamics.ThexDriveall-wheel-drive
systemvariablydistributesthedriveforcestothe
frontandrearaxlesasdemandedbythedriving
situationandroadsurface.
Adaptivechassis
Concept
Thissystemreducesundesirablevehiclemotion
whenusingadynamicdrivingstyleortraveling onunevenroadsurfaces.
Thisenhancesthedrivingdynamicsanddriving
comfortdependingontheroadsurfacecondition
anddrivingstyle.
Programs
Thesystemoffersseveraldifferentprograms.
TheprogramscanbeselectedviaDrivingDyj
namicsControl.
SPORT
Consistentlysportycontroloftheshockabsorbj ersforgreaterdrivingagility.
SPORT+
Consistentlysportycontroloftheshockabsorbj
ersforgreaterdrivingagilitywhendrivingwith limiteddrivingstabilization.
COMFORT/ECOPRO
Balancedcontrolofthevehicle.
Variablesportsteering
Thesupportofferedbythevariablesportsteerj ingchangesaccordingtotheanglebywhichthesteeringwheelhasbeenturnedandthespeed.
So,forinstancethesteeringangleofthefront
wheelsismadelargerwhenparkingortaking tightcorners.Thismakesiteasiertodrive
aroundbends.
Furthermore,thesystemprovidesthesteering
withmoresupportatlowspeedsthanathigher
ones.Thismakesiteasiertopark,forinstance, andmakessteeringmoredirectwhendrivingat
fasterspeeds.
Bytakingtheanglebywhichthesteeringwheel hasbeenturnedandthespeedintoaccount,a
sportysteeringresponseadaptedtotheparticuj lardrivingsituationcanbeachieved.
DrivingDynamicsControl
Concept
TheDrivingDynamicsControlhelpstofine-tune
thevehicle'ssettingsandfeatures.Variousproj
gramscanbeselectedforthispurpose.The DrivingDynamicsControlandtheDSCOFFbutjtonscaneachbeusedtoactivateaprogram.
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OverviewButtoninthevehicle
Operatingtheprograms
ButtonProgramDSCOFF
TRACTIONSPORT+
SPORT
COMFORT
ECOPRO
Automaticprogramchange
ThesystemmayautomaticallyswitchtoCOMj FORTinthefollowingsituations:
'xIftheadaptivechassisfails.'xFailureofDSCDynamicStabilityControl.'xThevehiclehasaflattire.'xWhenactivatingcruisecontrolinTRACTIONorDSCOFFmode.
DSCOFF
WhenDSCOFF,refertopage 172,isactive,
drivingstabilityislimitedduringaccelerationand
whendrivingincurves.
TRACTION
WhenTRACTIONisactive,thevehiclehasmaxij mumtractiononlooseroadsurfaces.DTCDyj
namicTractionControl,refertopage 172,isactij
vated.Drivingstabilityislimitedduring
accelerationandwhendrivingincurves.
SPORT+
Concept Sportydrivingwithoptimizedchassisandsusj
pensionandadjusteddrivetrainwithlimiteddrivj
ingstabilization.
Generalinformation DynamicTractionControlisswitchedon.
Thedriverhandlesseveralofthestabilization tasks.
ActivatingSPORT+ PressbuttonrepeatedlyuntilSPORT+
appearsintheinstrumentclusterand
theDSCOFFindicatorlightlightsup.
Automaticprogramchange
Whenactivatingcruisecontrol,theprogramauj
tomaticallyswitchestoSPORTmode.
Indicator/warninglights
SPORT+isdisplayedintheinstrumentcluster.
TheDSCOFFindicatorlightisillumij
nated:DynamicTractionControlDTCis
activated.
SPORT
Concept Dependingontheequipment,consistentlysportytuningofthesuspension,steering,anddrivetrainforgreaterdrivingagilitywithmaximumdrivingstabilization.
Theprogramcanbeconfiguredtoindividual
preferences.Theconfigurationisstoredforthe
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ActivatingSPORTPressthebuttonrepeatedlyuntil
SPORTisdisplayedintheinstrument
cluster.
ConfiguringSPORTViaiDrive:1.MyVehicle2.Vehiclesettings3.Ifnecessary,Drivingmode4.ConfigureSPORT5.Selectthedesiredsetting.
Thesettingisstoredforthedriverprofilecurj
rentlyused.
COMFORT Concept
Forabalancedtuningwithmaximumdrivingstaj bilization.
ActivatingCOMFORT PressthebuttonrepeatedlyuntilCOMj
FORTisdisplayedintheinstrument
cluster.
Incertainsituations,thesystemautomatically changestotheNORMALprogram,automaticprogramchange,refertopage 174.
ECOPRO Concept
ECOPROprovidesconsistenttuningtominij
mizeconsumptionformaximumrangewithmaxij mumdrivingstabilization.
Comfortfunctionsandtheenginemanagement
areadjusted.
Theprogramcanbeconfiguredtoindividual
preferences.
ActivatingECOPRO
PressthebuttonrepeatedlyuntilECOPROisdisplayedintheinstrumentclusj
ter.
ConfiguringECOPRO
ViaiDrive:1.MyVehicle2.Vehiclesettings3.Ifnecessary,Drivingmode4.ConfigureECOPRO5.Selectthedesiredsetting.
Thesettingisstoredforthedriverprofilecurj
rentlyused.
Configuringdrivingprogram Settingscanbemadeforthefollowingdriving
programsinDrivingmode:
'xSPORT,refertopage 174.'xECOPRO,refertopage 237.
Displays
Programselection Pressingthebuttondisplaysalist
oftheselectableprograms.Dej
pendingonyourvehicle'soptional
features,thelistintheinstrument
clustercandifferfromtheillustraj
tionshown.
Selectedprogram Theinstrumentclusterdisplays
theselectedprogram.
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Drive-offassistant
Concept
Thissystemsupportsdrivingoffonuphillgrades.
Theparkingbrakeisnotrequired.
Drivingoffwiththedrive-off
assistant
1.Holdthevehicleinplacewiththefootbrake.2.Releasethefootbrakeanddriveoffwithout delay.
Afterthefootbrakeisreleased,thevehicleis
heldinplaceforapprox.2seconds.
Dependingonthevehicleloadorwhenatraileris
used,thevehiclemayrollbackslightly.
Servotronic
Concept
Servotronicisaspeed-dependentpowersteerj
ingfunction.
Thesystemprovidesthesteeringforcewith moresupportatlowspeedsthanathigherones.
Thismakesiteasiertopark,forinstance,and
makessteeringfirmerwhendrivingatfaster
speeds.
Furthermore,thesteeringforceadaptsaccording
tothedrivingprogram,sothatafirm,sportyfeel
oracomfortablesteeringresponseisconveyed.
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DrivingcomfortVehiclefeaturesandoptions
Thischapterdescribesallstandard,country-spejcificandoptionalfeaturesofferedwiththeseries. Italsodescribesfeaturesthatarenotnecessarilyavailableinyourvehicle,forinstance,duetothe
selectedoptionsorcountryversions.Thisalso
appliestosafety-relatedfunctionsandsystems. Whenusingthesefunctionsandsystems,theapplicablelawsandregulationsmustbeobj
served.
ActiveCruiseControlwith Stop&GofunctionACC
Concept
Usingthissystem,adesiredspeedandadisj
tancetoavehicleaheadcanbeadjustedusing
thebuttonsonthesteeringwheel.
Thesystemmaintainsthedesiredspeedon
clearroads.Forthispurpose,thevehicleaccelerj atesorbrakesautomatically.
Ifavehicleisdrivingaheadofyou,thesystem
adjuststhespeedofyourvehiclesothattheset
distancetothevehicleaheadismaintained.The speedisadjustedasfarasthegivensituationaljlows.
Thedistancecanbeadjustedinseveralsteps.
Forsafetyreasons,itdependsontherespective speed.
Ifthevehicleaheadofyoubrakestoahalt,and thenproceedstodriveagainwithinabriefperiod, thesystemisabletodetectthiswithinthegivensystemlimits.
Generalinformation
Dependingonthesettings,thecruisecontrol
settingsmanychangeundercertainconditions.
Safetyinformation
Warning
Thesystemcannotserveasasubstituteforthe driversspersonaljudgmentinassessingthe trafficconditions.Basedonthelimitsofthe
system,itcannotindependentlyreacttoalltrafj ficsituations.Thereisariskofaccident.Adjust
drivingstyletotrafficconditions.Watchtraffic closelyandactivelyintervenewhereapproprij
ate.
Warning
Anunsecuredvehiclecanbegintomoveand
possiblyrollaway.Thereisariskofaccident.
Beforeexiting,securethevehicleagainstrollj
ing.
Inordertoensurethatthevehicleissecured againstrollingaway,followthefollowing:
'xSettheparkingbrake.'xOnuphillgradesoronadownhillslope,
turnthefrontwheelsinthedirectionofthe curb.'xOnuphillgradesoronadownhillslope,
alsosecurethevehicle,forinstancewitha
wheelchock.
Warning
Thedesiredspeedcanbeincorrectlyadjusted
orcalledupbymistake.Thereisariskofaccij
dent.Adjustthedesiredspeedtothetraffic conditions.Watchtrafficcloselyandactivelyinj
tervenewhereappropriate.
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Warning
Riskofaccidentduetotoohighspeeddifferenj
cestoothervehicles,forinstanceinthefollowj
ingsituations:
'xWhenfastapproachingaslowlymoving vehicle.'xVehiclesuddenlyswervingintoownlane.'xWhenfastapproachingstandingvehicles.
Thereisariskofinjuriesordangertolife.
Watchtrafficcloselyandactivelyintervene
whereappropriate.
Overview
Buttonsonthesteeringwheel
ButtonFunctionCruisecontrolon/off,interrupt,refer
topage 178Store,maintainspeed,referto
page 179Resumespeed,continuecruiseconj
trol,refertopage 180Reducedistance,refertopage 180Increasethedistance,referto
page 180Rockerswitch:
Setspeed,refertopage 179
Radarsensor
Aradarsensorislocatedinthefrontbumperfor detectingvehiclesontheroadaheadofthevehij
cle.
Alwayskeepradarsensorcleanandunobj
structed.
Functionalrequirements
Speedrange Thesystemisbestusedonwell-constructed
roads.
Theminimumspeedthatcanbesetis 20mph/30km/h.Themaximumspeedthatcan
besetdependsonthevehicle.
Thesystemcanalsobeactivatedwhenstationj
ary.
Switchingon/offandinterrupting
cruisecontrol
Switchingon Pressthebuttononthesteeringwheel.
Theindicatorlightsintheinstrumentclusterlight upandthemarkinthespeedometerissettothecurrentspeed.
Cruisecontrolcanbeused.
DSCDynamicStabilityControlisswitchedon,if
necessary.
Switchingoff
Toswitchoffthesystemwhilestanding,stepon
brakepedalatthesametime.
Pressthebuttononthesteeringwheel.
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'xIfinterrupted:pressonce.
Thedisplaysgoout.Thestoreddesiredspeedisdeleted.
Interruptingmanually Pressthebuttononthesteeringwheel.
Ifinterruptingthesystemwhilestationary,press onthebrakepedalatthesametime.
Interruptingautomatically
Thesystemisautomaticallyinterruptedinthe
followingsituations:
'xWhenthedriverappliesthebrakes.'xWhenselectorleverpositionDisdisengaged.'xDynamicTractionControlDTCisactivatedor
DSCDynamicStabilityControlisdeactivated.'xIfDSCDynamicStabilityControlintervenes.'xWhenSPORT+isactivatedwithDrivingDyj namicsControl.'xIfthesafetybeltisunbuckledandthedriver's
doorisopenedwhilethevehicleisstanding
still.'xIfthesystemhasnotdetectedobjectsforan extendedperiod,forinstanceonaroadwith
verylittletrafficwithoutcurborshoulder
markings.'xIfthedetectionrangeoftheradarisimpaired,
forinstancebydirtorheavyfog.'xAfterastationaryperiodofapprox.3seconds
whenthevehiclehasbeenbrakedtoastop
bythesystem.Settingthespeed
Maintaining/storingthespeed
Presstherockerswitchupordownoncewhilethesystemisinterrupted.
Whenthesystemisswitchedon,thecurrent
speedismaintainedandstoredasthedesired
speed.
Thestoredspeedisdisplayedinthespeedomej terandbrieflyintheinstrumentcluster,referto
page 180.
DSCDynamicStabilityControlisswitchedon,if necessary.
Thespeedcanalsobestoredbypressjingabutton.
Pressthebutton.
Changingthespeed
Presstherockerswitchupordownrepeatedlyuntilthedesiredspeedisset.
Ifactive,thedisplayedspeedisstoredandthe
vehiclereachesthestoredspeedwhentheroad isclear.
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'xEachtimetherockerswitchispressedtothepointofresistance,thedesiredspeedinjcreasesordecreasesbyapprox.
1mph/1km/h.'xEachtimetherockerswitchispressedpast
theresistancepoint,thedesiredspeed
changesbyamaximumof5mph/10km/h.
Holdtherockerswitchinpositiontorepeatthe action.
Adjustingthedistance
Safetyinformation
Warning
Thesystemcannotserveasasubstituteforthe
driversspersonaljudgment.Duetothesystem limits,brakingcanbelate.Theremaybeariskofaccidentorriskofdamagetoproperty.Be
awaretothetrafficsituationatalltimes.Adjust
thedistancetothetrafficandweathercondij
tionsandmaintaintheprescribedsafetydisj
tance,possiblybybraking.
Reducedistance
Pressthebuttonrepeatedlyuntilthe
desireddistanceisset.
Instrumentclusterwilldisplayselecteddistance, refertopage 180.
Increasethedistance Pressthebuttonrepeatedlyuntilthe
desireddistanceisset.
Instrumentclusterwilldisplayselecteddistance,
refertopage 180.
Continuingcruisecontrol
Generalinformation Aninterruptedcruisecontrolcanbecontinued
bycallingupthestoredspeed.
Makesurethatthedifferencebetweencurrent
speedandstoredspeedisnottoolargebefore
callingupthestoredspeed.Otherwise,unintenj tionalbrakingoracceleratingmayoccur.
Inthefollowingcases,thestoredspeedvalueis
deletedandcannotbecalledupagain:'xWhenthesystemisswitchedoff.'xWhentheignitionisswitchedoff.
Callingupthestoredspeedand
distance
Pressbuttonwiththesystemswitched
on.
Displaysintheinstrument
cluster
Desiredspeedandstoredspeed
'xMarkinglightsupgreen:sysj
temisactive,themarkingindij
catesthedesiredspeed.'xMarkinglightsuporange:sysj
temisinterrupted,themarking
indicatesthestoredspeed.'xThemarkingdoesnotlightup:thesystemis switchedoff.
Withinstrumentdisplay:thesymbolisdisplayedinthespeedometersimilarlyto
themarkforthedesiredspeed.
Briefstatusdisplay Selecteddesiredspeed.
Ifnospeedisindicated,itispossiblethatthe
conditionsnecessaryforoperationarenotcurj rentlyfulfilled.
Distancetovehicleaheadofyou
Selecteddistancetothevehicleaheadofyouis
shown.
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