BMW M8 CONVERTIBLE 2022 Owners Manual

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TiresizePressurespecifications
inbar/PSIFront:275/40
ZR19105YXL3.0/44-Rear:285/40ZR
19107YXL-3.1/45Front:275/35
ZR20102YXL3.0/44-Rear:285/35ZR
20104YXL-3.1/45
Tiremarking
Tiresize
245/45R1896Y
245:nominalwidthinmm
45:aspectratioin%
R:radialtirecode
18:rimdiameterininches
96:loadbearingcapacity
Y:speedcodeletter
ZRtires:reinforcedradialtireforspeedsexceed#j ing150mph/240km/h
Maximumtireload
Maximumtireloadisthemaximumpermissible
weightforwhichthetireisapproved.
Locatethemaximumtireloadonthetiresidewall
andtheGrossAxleWeightRating#mGAWR#mon
thecertificationlabelonthedriverdoorB-pillar.
Dividethetireloadby1.1.Itmustbegreater
thanone-halfofthevehicle#ssGrossAxleWeight
Rating#mGAWR.Note,frontvs.rearGAWRand
tireloads,respectively.
SpeedletterDesignationMaximumspeedQupto100mph/160km/hRupto106mph/170km/hSupto112mph/180km/hTupto118mph/190km/hHupto131mph/210km/hVupto150mph/240km/hWupto167mph/270km/hYupto186mph/300km/h(Y)above186mph/300km/h
TireIdentificationNumber
DOTCode:DOTxxxxxxx1921
xxxx:manufacturercodeforthetirebrand
xxx:tiresizeandtiredesign
1921:tireage
TireswithDOTcodesmeettheguidelinesofthe
U.S.DepartmentofTransportation.
Tireage Recommendation
Regardlessofthetiretreaddepth,replacetires atleastevery6years.
Manufacturedate
Youcanfindthemanufacturedateofthetireon thetiresidewall.
DesignationManufacturedateDOT#

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UniformTireQualityGrading
Qualitygradescanbefoundwhereapplicableon
thetiresidewallbetweentreadshoulderand
maximumsectionwidth.
E.g.:Treadwear200;TractionAA;Temperature A
DOTQualityGrades
Treadwear
TractionAAABC
TemperatureABC
AllpassengervehicletiresmustconformtoFed#j
eralSafetyRequirementsinadditiontothese grades.
Treadwear Thetreadweargradeisacomparativerating
basedonthewearrateofthetirewhentested undercontrolledconditionsonaspecifiedgov#jernmenttestcourse.E.g.,atiregraded150
wouldwearoneandone-half,1g,timesaswell onthegovernmentcourseasatiregraded100.
Therelativeperformanceoftiresdependsupon
theactualconditionsoftheiruse,however,and maydepartsignificantlyfromthenormduetovariationsindrivinghabits,servicepracticesand
differencesinroadcharacteristicsandclimate.
Traction
Thetractiongrades,fromhighesttolowest,are AA,A,B,andC.
Thosegradesrepresentthetire'sabilitytostop onwetpavementasmeasuredundercontrolledconditionsonspecifiedgovernmenttestsurfa#j
cesofasphaltandconcrete.AtiremarkedCmay havepoortractionperformance.
Thetractiongradeassignedtothistireisbased
onstraight-aheadbrakingtractiontests,and
doesnotincludeacceleration,cornering,hydro#j planing,orpeaktractioncharacteristics.Temperature
ThetemperaturegradesareA,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.
M+S
Winterandall-seasontireswithbettercold
weatherperformancethansummertires.
Tiretread
Summertires
Donotdrivewithatiretreaddepthoflessthan
0.12in/3mm,otherwisethereisanincreased
riskofaquaplaning.
Wintertires
Donotdrivewithatiretreadoflessthan
0.16in/4mm,assuchtiresarelesssuitablefor winteroperation.
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Minimumtreaddepth
Wearindicatorsaredistributedaroundthetirecircumference.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.'xUnusualhandlingsuchasastrongtendency
topulltotheleftorright.
Damagecanbecausedbythefollowingsitua#j
tions,forinstance:
'xDrivingovercurbs.'xRoaddamage.'xTirepressuretoolow.'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.Theremaybea
riskofaccidentandriskofdamagetoproperty.
Ifpossible,avoiddrivingoverobjectsorroad
conditionsthatmaydamagetires,ordriveover
themslowlyandcarefully.
Changingwheelsandtires
Mountingandwheelbalancing
Havemountingandwheelbalancingcarriedout
byadealer#ssservicecenteroranotherqualified
servicecenterorrepairshop.
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ApprovedwheelsandtiresGeneralinformation
Thefollowingpropertiesarerecommendedand
approvedbythemanufacturerofthevehiclefor theapprovedwheelsandtirespervehicletypeandspecialequipment:'xWheelandtirecombinations.'xRimdesigns.'xTiresizes.'xTirebrands.
Youcanaskamanufacturerservicecenteroran#j
otherqualifiedservicecenterorrepairshop abouttheapprovedwheelsandtiresforthevehi#j
cleandthespecialequipment.
Safetyinformation
Warning
Wheelsandtireswhicharenotsuitableforyour
vehiclecandamagepartsofthevehicle,forin#j
stanceduetocontactwiththebodyduetotol#j
erancesdespitethesameofficialsizerating.
Thereisariskofanaccident.Themanufac#j turerofyourvehiclestronglysuggeststhatyou
usewheelsandtiresthathavebeenrecom#j mendedbythevehiclemanufacturerforyour
vehicletype.
Warning
Mountedsteelwheelscancausetechnical problems,forinstanceunexpectedlooseningofthelugboltsanddamagetothebrakediscs.
Thereisariskofaccident.Donotmountsteel
wheels.
Warning
Incorrectwheel/tirecombinationswillimpairthe vehicle'shandlingcharacteristicsandavariety
ofsystemfunctions,suchastheAntilockBrak#j
ingSystem(ABS)orDynamicStabilityControl.
Thereisariskofaccident.Tomaintaingood
handlingandvehicleresponse,useonlytires
withasingletreadconfigurationfromasingle
manufacturer.Themanufacturerofthevehicle
recommendsthatyouusewheelsandtiresthat
havebeenrecommendedbythevehiclemanu#j
facturerforyourvehicletype.Followingtire
damage,havetheoriginalwheel/tirecombina#j
tionremountedonthevehicleassoonaspos#j
sible.
Recommendedtirebrands
Foreachtiresize,themanufacturerofthevehi#j clerecommendscertaintirebrands.Thetire
brandscanbeidentifiedbyastaronthetire
sidewall.
Newtires Tiretractionisnotoptimalduetoproduction-re#jlatedcircumstanceswhentiresarebrand-new.
Driveconservativelyforthefirst
200miles/300km.
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Retreadedtires
Warning
Retreadedtirescanhavedifferenttirecasing structures.Withadvancedagetheservicelife
canbelimited.Thereisariskofanaccident.
Themanufacturerofyourvehicledoesnotrec#j
ommendtheuseofretreadedtires.
Themanufacturerofthevehicledoesnotrec#j ommendtheuseofretreadedtires.
Wintertires Generalinformation Wintertiresarerecommendedforoperatingon
winterroads.
Althoughso-calledall-seasontireswithM+S identificationprovidebetterwintertractionthan
summertires,theyusuallydonotprovidethe
samelevelofperformanceaswintertires.
Maximumspeedofwintertires
Ifthemaximumspeedofthevehicleishigher
thanthepermissiblespeedforthewintertires,
thenattachalabelshowingthepermissiblemaxi#j mumspeedinthefieldofvision.Thelabelis
availablefromadealer'sservicecenteroran#j otherqualifiedservicecenterorrepairshop.
Withwintertiresmounted,observeanddonot
exceedthepermissiblemaximumspeed.
Rotatingwheelsbetweenaxles
Warning
Rotatingtiresbetweentheaxlesonvehicles withdifferenttiresizesorrimsizesonthefront
andrearaxlescancausedamagetothetires
andthevehicle.Thereisariskofaccident.Do
notrotatethetiresbetweentheaxlesonvehi#j
cleswithdifferenttiresizesorrimsizesonthe
frontandrearaxles.
Storingtires
Tirepressure
Donotexceedthemaximumtireinflationpres#j
sureindicatedonthetiresidewall.
Storage'xStorewheelsandtiresinacool,dryanddark
place.'xAlwaysprotecttiresagainstallcontactwith
oil,grease,andsolvents.'xDonotleavetiresinplasticbags.'xRemovedirtfromwheelsortires.
Repairingaflattire
Safetymeasures
'xParkthevehicleasfarawayaspossiblefrom
passingtrafficandonsolidground.'xTurnonthehazardwarningsystem.'xSecurethevehicleagainstrollingawayby
settingtheparkingbrake.'xTurnthesteeringwheeluntilthefrontwheels areinthestraight-aheadpositionandengage
thesteeringwheellock.'xHaveallvehicleoccupantsgetoutoftheve#j
hicleandensurethattheyremainoutsidethe hazardousareainasafeplace,suchasbe#jhindaguardrail.'xIfnecessary,setupawarningtriangleatan
appropriatedistance.
Tirerepairset
Principle
Withthetirerepairset,minortiredamagecanbe
sealedtemporarilytoenablecontinueddriving.
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Generalinformation'xToenablecontinueddriving,liquidsealantis
pumpedintothetire,whichhardensand
sealsthedamagefromtheinside.'xFollowtheinstructionsonusingthetirerepair setfoundonthecompressorandsealant
bottle.'xUseofthetirerepairsetmaybeineffectiveif thetirepuncturemeasuresapprox.4mmormore.'xContactadealer'sservicecenteroranotherqualifiedservicecenterorrepairshopifthetirecannotbemadedrivable.'xDonotremoveforeignbodiesthathavepe#jnetratedthetire.Removeforeignobjectsonlywhentheyarevisiblyprotrudingfromthetire.'xPullthespeedlimitstickeroffthesealantbot#j
tleandapplyittothesteeringwheel.'xTheuseofasealingcompoundcandamage thewheelelectronics.Inthiscase,havetheelectronicscheckedandreplacedatthenext
opportunity.'xThecompressorcanbeusedtocheckthe
tireinflationpressure.
Overview
Storage
Storageforthetirerepairsetisprovidedintheleftstoragecompartmentofthetrunk.
Sealantbottle'xSealantbottle,arrow1.'xFillerhose,arrow2.
Observeexpirationdateonthesealantbottle.
Compressor
1Sealantbottleunlocking2Sealantbottleholder3Tirepressuredisplay4Reducetireinflationpressurebutton5On/offswitch6Compressor7Connector/cableforsocket8Connectionhose
Safetymeasures
'xParkthevehicleasfarawayaspossiblefrom
passingtrafficandonsolidground.'xTurnonthehazardwarningsystem.'xSecurethevehicleagainstrollingawayby
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'xTurnthesteeringwheeluntilthefrontwheelsareinthestraight-aheadpositionandengage
thesteeringwheellock.'xHaveallvehicleoccupantsgetoutoftheve#j
hicleandensurethattheyremainoutsidethe hazardousareainasafeplace,suchasbe#jhindaguardrail.'xIfnecessary,setupawarningtriangleatan
appropriatedistance.
Fillingthetirewithsealing
compound
Safetyinformation
DANGER
Iftheexhaustpipeisblockedorventilationisin#j
sufficient,harmfulexhaustgasescanenterinto thevehicle.Theexhaustgasescontainpollu#j
tantswhicharecolorlessandodorless.Inen#j
closedareas,exhaustgasescanalsoaccumu#j
lateoutsideofthevehicle.Thereisdangerto
life.Keeptheexhaustpipefreeandensuresuf#j
ficientventilation.
NOTICE
Thecompressorcanoverheatduringextended operation.Thereisariskofdamagetoprop#j
erty,amongotherpotentialdamage.Donotrun thecompressorformorethan10minutes.
Filling1.Shakethesealantbottle.2.Pullfillerhosecompletelyoutofthecoverof
thesealantbottle.Donotkinkthehose.3.Slidethesealantbottleintotheholderonthe
compressorhousing,ensuringthatiten#j
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4.Screwthefillerhoseofthesealantbottle
ontothetirevalveofthenonworkingwheel.5.Withthecompressorswitchedoff,insertthe
connectorintothepowersocketinthevehi#j
cleinterior.6.Withstandbystateordrive-readystate
switchedon,switchonthecompressor.
Letthecompressorrunformax.10minutestofill
thetirewithsealingcompoundandachieveatire inflationpressureofapprox.2.0bar.
Whilethetireisbeingfilledwithsealingcom#j
pound,thetireinflationpressuremaysporadi#j
callyreachapprox.5bar.Donotswitchoffthe
compressorinthisphase.
Checkingandadjustingthetire
inflationpressure
Checking1.Switchoffthecompressor.2.Readthetirepressureonthetirepressure
display.
Tocontinuethetrip,atireinflationpressureofat least2barmustbereached.
Removingandstowingthesealant
bottle
1.Unscrewthefillerhoseofthesealantbottle fromthetirevalve.2.Presstheredunlockingdevice.3.Removethesealantbottlefromthecompres#jsor.4.Wrapandstorethesealantbottleinsuitablematerialtoavoidcontaminationofthecargoarea.
Minimumtireinflationpressureis
notreached
1.Pulltheconnectoroutofthepowersocketin
thevehicleinterior.2.Drive33ft/10mforwardandbacktodistrib#j utethesealingcompoundinthetire.3.Screwtheconnectionhoseofthecompres#j
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4.Inserttheconnectorintothepowersocketinthevehicleinterior.5.Withstandbyordrivereadinessturnedon,
turnonthecompressorandletitrunfora maximumof10minutes.
Whenthetirepressuredoesnotreachat
least2bar,contactamanufacturerservice
centeroranotherqualifiedservicecenteror
repairshop.
Whenatirepressureofatleast2baris
reached,seeMinimumtireinflationpressure
isreached.6.Unscrewtheconnectionhoseofthecom#j pressorfromthetirevalve.7.Pulltheconnectoroutofthepowersocketin
thevehicleinterior.8.Stowthetirerepairsetinthevehicle.
Minimumtireinflationpressureis
reached
1.Unscrewtheconnectionhoseofthecom#j pressorfromthetirevalve.2.Pulltheconnectoroutofthepowersocketin
thevehicleinterior.3.Stowthetirerepairsetinthevehicle.4.Immediatelydriveapprox.5miles/10kmto ensurethatthesealingcompoundisevenly
distributedinthetire.
Donotexceedaspeedof50mph/80km/h. Ifpossible,donotdriveatspeedslessthan12mph/20km/h.Adjustment1.Stopatasuitablelocation.2.Screwtheconnectionhoseofthecompres#j
sordirectlyontothetirevalvestem.3.Inserttheconnectorintothepowersocketin thevehicleinterior.4.Correctthetireinflationpressuretoatleast
2.0bar:'xIncreasetirepressure:withstandbyor
drivereadinessturnedon,turnonthe compressorandletitrunforamaximum
of10minutes.'xReducetireinflationpressure:pressthe
buttononthecompressor.5.Unscrewtheconnectionhoseofthecom#j pressorfromthetirevalve.6.Pulltheconnectoroutofthepowersocketin
thevehicleinterior.7.Stowthetirerepairsetinthevehicle.
Continuingthetrip
Donotexceedthepermissiblemaximumspeedof50mph/80km/h.
ReinitializetheFlatTireMonitor.
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ResettheTirePressureMonitoragain.Replacethefaultytireandthesealantbottleof
thetirerepairsetpromptly.
Additionalinformation:'xRun-flattires,refertopage 336.'xTirepressuremonitor,refertopage 330.
Tirechains
Safetyinformation
Warning
Withthemountingoftirechainsonunsuitable
tires,thetirechainscancomeintocontactwith vehicleparts.Theremaybeariskofaccidentorriskofdamagetoproperty.Onlymounttire
chainsontiresthataredesignatedbytheir
manufacturerassuitablefortheuseoftire
chains.
Warning
Insufficientlytighttirechainsmaydamagetires
andvehiclecomponents.Theremaybearisk
ofaccidentorriskofdamagetoproperty.Make
surethatthetirechainsarealwayssufficiently tight.Re-tightenasneededaccordingtothe
tirechainmanufacturer'sinstructions.
Fine-linktirechains
Themanufacturerofthevehiclerecommendstheuseoffine-linktirechains.Certaintypesoffine-linktirechainshavebeentestedbythe
manufacturerofthevehicleandrecommended asroad-safeandsuitable.
Informationregardingsuitabletirechainsisavail#j
ablefromadealer#ssservicecenteroranother qualifiedservicecenterorrepairshop.
Use
Useonlyinpairsontherearwheels,equipped
withthetiresofthefollowingsize:'x265/40R19.
Thewheelsizeandrimoffsetarelocatedonthe insideofthewheel.
Followthetirechainmanufacturer'sinstructions.
DonotinitializetheFlatTireMonitorafter
mountingtirechains,asdoingsomayresultin incorrectreadings.
DonotresettheTirePressureMonitorafter mountingtirechains,asdoingsomayresultin
incorrectreadings.
Whendrivingwithtirechains,brieflyactivateDy#j namicTractionControlDTCtooptimizethe
drivepower.
Maximumspeedwithtirechains Donotexceedaspeedof30mph/50km/hwhen
usingtirechains.
Tirepressuremonitor
Principle
TheTirePressureMonitormonitorsthetire pressureandissuesawarningifthetirepressure hasdropped.
Generalinformation Sensorsinthetirevalvesmeasurethetireinfla#j
tionpressureandtiretemperature.
UsingthetiresettingsiniDrive,thesystemcan
automaticallycomparethepredefinedtarget
pressureswiththeactualtireinflationpressures.
Iftiresarebeingusedthatarenotspecifiedon thetireinflationpressuredetailsonthevehicle,
suchastireswithspecialapproval,thesystem
needstobeactivelyreset.Thesystemwillthen
takeovertheactualtireinflationpressuresasthe targetpressures.
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