BMW 3 SERIES 2021 Owners Manual

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TemperatureThetemperaturegradesareA,thehighest,B,
andC,representingthetire'sresistancetothe
generationofheatanditsabilitytodissipateheat whentestedundercontrolledconditionsonaspecifiedindoorlaboratorytestwheel.Sustained
hightemperaturecancausethematerialofthe
tiretodegenerateandreducetirelife,andexces#j sivetemperaturecanleadtosuddentirefailure.
ThegradeCcorrespondstoalevelofperform#j
ancewhichallpassengercartiresmustmeetun#j
dertheFederalMotorVehicleSafetyStandard
No.109.GradesBandArepresenthigherlevels ofperformanceonthelaboratorytestwheelthantheminimumrequiredbylaw.
Warning
Thetemperaturegradeforthistireisestab#j lishedforatirethatisproperlyinflatedandnotoverloaded.Excessivespeed,underinflation,or
excessiveloading,eitherseparatelyorincom#j bination,cancauseheatbuildupandpossible
tirefailure.
RSCmRun-flattires
Run-flattires,refertopage 324,arelabeledwith
acircularsymbolcontainingthelettersRSC
markedonthesidewall.
M+S
Winterandall-seasontireswithbettercold weatherperformancethansummertires.
Tiretread
Summertires Donotdrivewithatiretreadoflessthan
0.12in/3mm,otherwisethereisanincreased
riskofhydroplaning.
Wintertires
Donotdrivewithatiretreadoflessthan
0.16in/4mm,assuchtiresarelesssuitablefor winteroperation.
Minimumtreaddepth
Wearindicatorsaredistributedaroundthetire circumference.Thesewearindicatorshavethe
legallyrequiredminimumheightof
0.063in/1.6mm.
Thepositionsofthewearindicatorsaremarked onthetiresidewallwithTWI,TreadWearIndica#j
tor.
Tiredamage
Generalinformation Inspectyourtiresregularlyfordamage,foreign
objectslodgedinthetread,andtreadwear.
Drivingoverroughordamagedroadsurfaces,as
wellasdebris,curbsandotherobstaclescan
causeseriousdamagetowheels,tiresandsus#j
pensionparts.Thisismorelikelytooccurwith low-profiletires,whichprovidelesscushioning
betweenthewheelandtheroad.Becarefulto
avoidroadhazardsandreduceyourspeed,es#j
peciallyifyourvehicleisequippedwithlow-pro#j filetires.
Indicationsoftiredamageorothervehiclemal#j
functions:
'xUnusualvibrations.'xUnusualtireorrunningnoises.Seite3218heelsandtiresMOBILITY321
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'xUnusualhandlingsuchasastrongtendency
topulltotheleftorright.
Damagecanbecausedbythefollowingsitua#j
tions,forinstance:
'xDrivingovercurbs.'xRoaddamage.'xTireinflationpressuretoolow.'xVehicleoverloading.'xIncorrecttirestorage.
Safetyinformation
Warning
Damagedtirescanlosetireinflationpressure,
whichcanleadtolossofvehiclecontrol.There isariskofaccident.Iftiredamageissuspected
whiledriving,immediatelyreducespeedand
stop.Havewheelsandtireschecked.Forthis
purpose,drivecarefullytothenearestdealer#ss
servicecenteroranotherqualifiedservicecen#j
terorrepairshop.Havevehicletowedortrans#j
portedasneeded.Donotrepairdamagedtires,
buthavethemreplaced.
Warning
Tirescanbecomedamagedbydrivingoverob#j
stacles,e.g.,curbsorroaddamage,athigh
speed.Largerwheelshaveasmallertirecross- section.Thesmallerthetirecross-section,the
highertheriskoftiredamage.Thereisadan#j
gerofaccidentsandpropertydamage.Ifpossi#j
ble,avoiddrivingoverobjectsorroadcondi#j
tionsthatmaydamagetires,ordriveoverthem
slowlyandcarefully.
Changingwheelsandtires
Mountingandwheelbalancing
Havemountingandwheelbalancingcarriedoutbyadealer#ssservicecenteroranotherqualifiedservicecenterorrepairshop.
Wheelandtirecombination
Generalinformation Youcanaskthedealer'sservicecenteroran#jotherqualifiedservicecenterorrepairshopaboutthecorrectwheel/tirecombinationandwheelrimversionsforthevehicle.
Safetyinformation
Warning
Wheelsandtireswhicharenotsuitableforyour
vehiclecandamagepartsofthevehicle,forin#j stanceduetocontactwiththebodyduetotol#j
erancesdespitethesameofficialsizerating.
Thereisariskofanaccident.Themanufac#j turerofyourvehiclestronglysuggeststhatyou
usewheelsandtiresthathavebeenrecom#j mendedbythevehiclemanufacturerforyour
vehicletype.
Warning
Mountedsteelwheelscancausetechnical
problems,forinstanceunexpectedlooseningof thelugboltsanddamagetothebrakediscs.
Thereisariskofaccident.Donotmountsteel wheels.
Warning
Incorrectwheel/tirecombinationswillhavea
negativeimpactonthevehicle'shandlingand
onthefunctionofavarietyofsystems,suchas
theABSAntilockBrakingSystemorDSCDy#j
namicStabilityControl.Thereisariskofacci#j
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dent.Tomaintaingoodhandlingandvehicle
response,useonlytireswithasingletreadcon#j
figurationfromasinglemanufacturer.The
manufacturerofthevehiclerecommendsthat
youusewheelsandtiresthathavebeenrec#j
ommendedbythevehiclemanufacturerfor
yourvehicletype.Followingtiredamage,have
theoriginalwheel/tirecombinationremounted
onthevehicleassoonaspossible.
Recommendedtirebrands
Foreachtiresize,themanufacturerofthevehi#j clerecommendscertaintirebrands.Thetire
brandscanbeidentifiedbyastaronthetire
sidewall.
Newtires Tiretractionisnotoptimalduetomanufacturing
circumstanceswhentiresarebrand-new;they achievetheirfulltractionpotentialafterabreak-intime.
Driveconservativelyforthefirst
200miles/300km.
Retreadedtires
Warning
Retreadedtirescanhavedifferenttirecasing
structures.Withadvancedagetheservicelife
canbelimited.Thereisariskofanaccident.
Themanufacturerofyourvehicledoesnotrec#j
ommendtheuseofretreadedtires.
Themanufacturerofthevehicledoesnotrec#j
ommendtheuseofretreadedtires.
Wintertires Generalinformation Wintertiresarerecommendedforoperatingon
winterroads.
Althoughso-calledall-seasonM+Stiresprovide betterwintertractionthansummertires,they
usuallydonotprovidethesamelevelofperform#j anceaswintertires.
Maximumspeedofwintertires Ifthemaximumspeedofthevehicleishigher
thanthepermissiblespeedforthewintertires,
thenattachalabelshowingthepermissiblemaxi#j
mumspeedinthefieldofview.Thelabelisavail#j
ablefromadealer'sservicecenteroranother
qualifiedservicecenterorrepairshop.
Withwintertiresmounted,observeanddonot
exceedthepermissiblemaximumspeed.
Changingrunflattires Whenchangingfromrun-flattirestostandardtires,itmustbeensuredthatthevehiclecontainsacompactsparetire("donut")ortiremobilitykit.Furtherinformationisavailablefromadealer's
servicecenteroranotherqualifiedservicecenter orrepairshop.
Rotatingwheelsbetweenaxles
Warning
Rotatingtiresbetweentheaxlesonvehicles withdifferenttiresizesorrimsizesonthefront
andrearaxlescancausedamagetothetires
andthevehicle.Thereisariskofaccident.Do notrotatethetiresbetweentheaxlesonvehi#jcleswithdifferenttiresizesorrimsizesonthe
frontandrearaxles.
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Differentwearpatternscanoccuronthefront
andrearaxlesdependingonindividualdriving
conditions.Thetirescanberotatedinpairsbe#j
tweentheaxlestoachieveevenwear.Furtherin#j formationisavailablefromadealer'sservicecen#jteroranotherqualifiedservicecenterorrepairshop.Afterrotating,checkthetirepressureand
correct,ifneeded.
Storingtires Tireinflationpressure
Donotexceedthemaximumtireinflationpres#j
sureindicatedonthesidewallofthetire.
Storage'xStorewheelsandtiresinacool,dryanddark
place.'xAlwaysprotecttiresagainstallcontactwith
oil,grease,andsolvents.'xDonotleavetiresinplasticbags.'xRemovedirtfromwheelsortires.
Run-flattires
Concept
Run-flattirespermitcontinueddrivingunderre#j
strictedconditionsevenintheeventofacom#j
pletelossoftireinflationpressure.
Generalinformation Thewheelsconsistoftiresthatareself-support#j
ing,toalimiteddegree,andpossiblyspecial
rims.
Thesupportofthesidewallallowsthetiretore#j
maindrivabletoarestricteddegreeintheevent
ofatireinflationpressureloss.
Followtheinstructionsforcontinueddrivingwith
aflattire.
Safetyinformation
Warning
Thevehiclehandlesdifferentlywhenarun-flat
tirehasinsufficientornotirepressure;forin#j stance,reducedlanestabilitywhenbraking,
brakingdistancesarelongerandtheself-steer#j
ingpropertieswillchange.Thereisariskofac#j cident.Drivemoderatelyanddonotexceeda
speedof50mph/80km/h.
Label
Thetiresaremarkedonthetiresidewallwith
Run-flatSystemComponentRSC.
Repairingaflattire
Safetymeasures
'xParkthevehicleasfarawayaspossiblefrom
passingtrafficandonsolidground.'xSwitchonthehazardwarningsystem.'xSecurethevehicleagainstrollingawayby
settingtheparkingbrake.'xTurnthesteeringwheeluntilthefrontwheels areinthestraight-aheadpositionandengage
thesteeringwheellock.'xHaveallvehicleoccupantsgetoutoftheve#j
hicleandensurethattheyremainoutsidethe immediateareainasafeplace,suchasbe#j
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'xIfnecessary,setupawarningtriangleatan
appropriatedistance.
MobilitySystem
Concept
WiththeMobilitySystem,minortiredamagecan besealedtemporarilytoenablecontinuedtravel.Toaccomplishthis,sealantispumpedintothetires,whichsealsthedamagefromtheinside.
Generalinformation
'xFollowtheinstructionsonusingtheMobility
Systemfoundonthecompressorandsealant container.'xUseoftheMobilitySystemmaybeineffec#j
tiveifthetirepuncturemeasuresapprox.
1/8inches/4mmormore.'xContactadealer'sservicecenteroranother qualifiedservicecenterorrepairshopifthetirecannotbemadedrivable.'xDonotremoveforeignbodiesthathavepe#jnetratedthetire.Removeforeignobjectsonlywhentheyarevisiblyprotrudingfromthetire.'xPullthespeedlimitstickeroffthesealant
containerandapplyittothesteeringwheel.'xTheuseofasealantcandamagethewheel
electronics.Inthiscase,havetheelectronics checkedandreplacedatthenextopportu#j
nity.'xThecompressorcanbeusedtocheckthe
tireinflationpressure.Overview
Storage
TheMobilitySystemislocatedinabagintheleftstoragecompartmentofthecargoarea.Releasethetensioningstraptoremove.
Sealantcontainer
'xSealantcontainer,arrow1.'xFillinghose,arrow2.
Observeuse-bydateonthesealantcontainer.
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Compressor1Sealantcontainerunlocking2Sealantcontainerholder3Tirepressuregage4Reducetireinflationpressurebutton5On/offswitch6Compressor7Connector/cableforsocket8Connectionhose
Safetymeasures
'xParkthevehicleasfarawayaspossiblefrom
passingtrafficandonsolidground.'xSwitchonthehazardwarningsystem.'xSecurethevehicleagainstrollingawayby
settingtheparkingbrake.'xTurnthesteeringwheeluntilthefrontwheels areinthestraight-aheadpositionandengage
thesteeringwheellock.'xHaveallvehicleoccupantsgetoutoftheve#j
hicleandensurethattheyremainoutsidethe immediateareainasafeplace,suchasbe#j
hindaguardrail.'xIfnecessary,setupawarningtriangleatan
appropriatedistance.Fillingthetirewithsealant
Safetyinformation
DANGER
Iftheexhaustpipeisblockedorventilationisin#j
sufficient,harmfulexhaustgasescanenterinto thevehicle.Theexhaustgasescontainpollu#jtantswhicharecolorlessandodorless.Inen#j
closedareas,exhaustgasescanalsoaccumu#j
lateoutsideofthevehicle.Thereisdangerto
life.Keeptheexhaustpipefreeandensuresuf#j
ficientventilation.
NOTICE
Thecompressorcanoverheatduringextended operation.Thereisariskofdamagetoprop#j
erty.Donotrunthecompressorformorethan
10minutes.
Filling
1.Shakethesealantcontainer.Seite326MOBILITY8heelsandtires326
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2.Pullfillinghosecompletelyoutofthecoverofthesealantcontainer.Donotkinkthehose.3.Slidethesealantcontainerintotheholderon
thecompressorhousing,ensuringthatiten#j
gagesaudibly.4.Screwthefillinghoseofthesealantcontainer ontothetirevalveofthenonworkingwheel.5.Withthecompressorswitchedoff,insertthe
connectorintothepowersocketinthevehi#j
cleinterior.6.Withstandbystateordrive-readystate
switchedon,switchonthecompressor.
Letthecompressorrunformax.10minutestofill
thetirewithsealantandachieveatireinflation pressureofapprox.2.0bar.
Whilethetireisbeingfilledwithsealant,thetire
inflationpressuremaysporadicallyreachapprox.
5bar.Donotswitchoffthecompressoratthis point.
Checkingandadjustingthetire
inflationpressure
Checking
1.Switchoffthecompressor.2.Readthetireinflationpressureonthetirepressuregage.
Tocontinuethetrip,atireinflationpressureofatleast2barmustbereached.
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Removingandstowingthesealant
container1.Unscrewthefillinghoseofthesealantcon#j tainerfromthetirevalve.2.Presstheredunlockingdevice.3.Removethesealantcontainerfromthecom#jpressor.4.Wrapandstorethesealantcontainerinsuita#j
blematerialtoavoiddirtyingthecargoarea.
Minimumtireinflationpressureis
notreached
1.Pulltheconnectoroutofthepowersocketin
thevehicleinterior.2.Drive33ft/10mforwardandbacktodistrib#j utethesealantinthetire.3.Screwtheconnectionhoseofthecompres#j
sordirectlyontothetirevalvestem.4.Inserttheconnectorintothepowersocketin thevehicleinterior.5.Withstandbystateordrive-readystate
switchedon,switchonthecompressor.
Whenthetirepressuredoesnotreachat
least2bar,contactamanufacturerservicecenteroranotherqualifiedservicecenteror
repairshop.
Whenatirepressureofatleast2baris
reached,seeMinimumtireinflationpressure
isreached.6.Unscrewtheconnectionhoseofthecom#j pressorfromthetirevalve.7.Pulltheconnectoroutofthepowersocketin
thevehicleinterior.8.StowtheMobilitySysteminthevehicle.
Minimumtireinflationpressureis
reached
1.Unscrewtheconnectionhoseofthecom#j pressorfromthetirevalve.2.Pulltheconnectoroutofthepowersocketin
thevehicleinterior.3.StowtheMobilitySysteminthevehicle.4.Immediatelydriveapprox.5miles/10kmto ensurethatthesealantisevenlydistributedin
thetire.
Donotexceedaspeedof50mph/80km/h. Ifpossible,donotdriveatspeedslessthan 12mph/20km/h.
Adjustment
1.Stopatasuitablelocation.2.Screwtheconnectionhoseofthecompres#j
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3.Inserttheconnectorintothepowersocketinthevehicleinterior.4.Correctthetireinflationpressuretoatleast
2.0bar:'xIncreasetireinflationpressure:with
standbystateordrive-readystate
switchedon,switchonthecompressor.'xReducetireinflationpressure:pressthe
buttononthecompressor.5.Unscrewtheconnectionhoseofthecom#j pressorfromthetirevalve.6.Pulltheconnectoroutofthepowersocketin
thevehicleinterior.7.StowtheMobilitySysteminthevehicle.
Continuingthetrip
Donotexceedthemaximumpermissiblespeedof50mph/80km/h.
ReinitializetheFlatTireMonitor.
ResettheTirePressureMonitoragain.
Replacethenonworkingtireandthesealantcon#j
taineroftheMobilitySystempromptly.
Additionalinformation:
'xRun-flattires,refertopage 337.'xTirepressuremonitor,refertopage 330.Tirechains
Safetyinformation
Warning
Withthemountingofsnowchainsonunsuita#j bletires,thesnowchainscancomeintocon#j
tactwithvehicleparts.Theremaybeariskof
accidentorriskofdamagetoproperty.Only mountsnowchainsontiresthataredesignated
bytheirmanufacturerassuitablefortheuseof
snowchains.
Warning
Insufficientlytightsnowchainsmaydamage
tiresandvehiclecomponents.Theremaybea riskofaccidentorriskofdamagetoproperty.
Makesurethatthesnowchainsarealwayssuf#j ficientlytight.Re-tightenasneededaccording
tothesnowchainmanufacturer'sinstructions.
Fine-linktirechains
Themanufacturerofthevehiclerecommends
theuseoffine-linktirechains.Certaintypesof fine-linktirechainshavebeentestedbythe
manufacturerofthevehicleandrecommended
asroad-safeandsuitable.
Informationregardingsuitabletirechainsisavail#j ablefromadealer#ssservicecenteroranotherqualifiedservicecenterorrepairshop.
Use Useonlyinpairsontherearwheels,equippedwiththetiresofthefollowingsize:
'x225/45R18.
Followthetirechainmanufacturer'sinstructions.
DonotinitializetheFlatTireMonitorafter
mountingtirechains,asdoingsomayresultin incorrectreadings.
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DonotresettheTirePressureMonitorafter
mountingtirechains,asdoingsomayresultin incorrectreadings.
Whendrivingwithtirechains,brieflyactivateDy#j
namicTractionControlDTCtooptimizethe
drivepower.
Maximumspeedwithtirechains Donotexceedaspeedof30mph/50km/hwhenusingtirechains.
Tirepressuremonitor
Concept
Thesystemmonitorstireinflationpressureinthe
fourmountedtires.Thesystemwarnsyouif thereisalossofpressureinoneormoretires.
Generalinformation Sensorsinthetirevalvesmeasurethetireinfla#j
tionpressureandtiretemperature.
Thesystemdetectsthemountedtiresautomati#j
cally.Thesystemdisplaysthespecifiednominal
pressurevaluesontheControlDisplayandcom#j
paresthesevaluestotheactualtirepressureval#j
ues.
Iftiresarebeingusedthatarenotspecifiedon thetireinflationpressuredetailsonthevehicle,
suchastireswithspecialapproval,thesystem
needstobeactivelyreset.Thesystemwillthen
takeovertheactualtireinflationpressuresasthe targetpressures.
Whenoperatingthesystem,alsonotetheinfor#j mationfoundintheTireinflationpressurechap#j ter.
Additionalinformation:
Tireinflationpressure,refertopage 314.
Safetyinformation
Warning
Thedisplayofthetargetpressuresisnota substituteforthetireinflationpressuredetails
onthevehicle.Incorrectentriesinthetireset#j
tingscanleadtoincorrecttargettireinflation
pressurevalues.Inthiscase,itcannotbeguar#j
anteedthatthenotificationofalossoftireinfla#j tionpressurewillbereliable.Thereisariskof
injuryandriskofdamagetoproperty.Ensure
thatthetiresizesofthemountedtiresaredis#j
playedcorrectlyandmatchthedetailsonthe
tiresandonthevehicle.
Functionalrequirements
Thefollowingconditionsmustbemetforthe
system;otherwise,reliableflaggingofalossof
tireinflationpressureisnotassured:
'xAftereachtireorwheelchange,thesystem detectsandupdatesthemountedtiresand
displaysthemafterashorttripontheControl Display.
Entertheinformationaboutthemounted
tiresinthetiresettingswhenthesystem doesnotautomaticallydetectthetires.'xTheTirePressureMonitordoesnotactivate
untilafterdrivingforafewminutes:'xAfteratireorwheelreplacement.'xAfterareset,fortireswithspecialappro#j val.'xAfterchangingthetiresetting.'xFortireswithspecialapproval:'xAfteratireorwheelreplacement,aresetwasperformedwiththecorrecttireinfla#j
tionpressure.'xAfterthetireinflationpressurewasad#j
justedtoanewvalue,aresetwasper#j formed.'xWheelswithwheelelectronics.Seite330MOBILITY8heelsandtires330
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