2019 AUDI S4 tire size

8W0012721BG
IntelligentTechnology


—Presstheacceleratorpedalcarefullywhen
acceleratingonsmooth,slipperysurfaces
suchasiceandsnow.Thedrivewheelscan
spinevenwhenthesecontrolsystemsarein-
stalledandthiscanaffectdrivingstability
andincreasetheriskofacollision.

@)Tips
— TheABSandASRonlyfunctioncorrectly
whenallfourwheelshaveasimilarwear
condition.Differenttiresizescanleadtoa
reductioninenginepower.
—Youmayhearnoiseswhenthesystemsde-
scribedareworking.
Switchingon/off
ESCturnsonautomaticallywhenyoustarttheengine.
2
gz
=& a

Fig.145CenterconsolewithbuttonRor
TheESCisdesignedtofunctioninlevels.Depend-
ingonthelevelthatisselected,thestabilization
functionoftheESCwillbelimitedorswitched
off.Theamountofstabilizationcontrolwilldiffer
dependingonthelevel.
Thefollowingsituationsareexceptionswhereit
maybeuseful toswitchonsportmode(sedan)or
offroadmode(allroad)toallowthewheelsto
spin:
—Rocking thevehicletofreeitwhenitisstuck
—Drivingindeepsnoworonlooseground
—Drivingwithsnowchains
—Appliesto:allroad:drivingonroughterrain
whenmuchofthecar'sweightisliftedoffthe
wheels(axlearticulation)
—Appliesto:allroad:drivingdownhillwhilebrak-
ingonlooseground
Foryoursafety,switchthesportmode/offroad
modeoffinadvance.






ESClevels
Appliesto:sedan
SportmodeonESC/ASRoffSportmodeoffor
ESC/ASRon
BehaviorThe ESC andASRstabiliza-|Thestabilizationfunctionis|Thefullstabilizationfunc-
tionfunctionsarelimitednotavailable>A\.ESCand_|tionoftheESC andASRis
oA.ASRareswitchedoff.availableagain.
OperatingPressthe[2OFF]buttonPressandholdthe|&OFFPressthe[2OFF]button
briefly.buttonlongerthan3sec-again.
onds.
IndicatorBiturnson.BancRdturnon.BaiturnsofforEJand
lightsaaturnoff.
MessagesStabilizationcontrol(ESC):|Stabilizationcontrol(ESC):|Stabilizationcontrol
sport.Warning!Restricted|off.Warning!Restricted(ESC):on
stability stability

139

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Safetybelts

Safetybelts
Generalinformation
OEELaeLL5aes
Wearingsafetybeltscorrectlysaveslives!
Thischapterexplainswhysafetybeltsareneces-
sary,howtheyworkandhowtoadjustandwear
themcorrectly.
>Readalltheinformationthatfollowsandheed
alloftheinstructionsandWARNINGS.

ZAWARNING
Notwearingsafetybeltsorwearingthemim-
properlyincreasestheriskof seriouspersonal
injuryanddeath.
—Safetybeltsarethesinglemosteffective
meansavailabletoreducetheriskofserious
injuryanddeathinautomobileaccidents.
Foryourprotectionandthat ofyourpassen-
gers,alwayscorrectlywearsafetybelts
whenthevehicleismoving.
—Pregnantwomen,injured,orphysicallyim-
pairedpersonsmustalsousesafetybelts.
Likeallvehicleoccupants,theyaremore
likelytobeseriouslyinjurediftheydonot
wearSafetybelts.Thebestwaytoprotecta
fetusistoprotectthemother-throughout
theentirepregnancy.
Tntaemet)
YourAudihasatotaloffiveseatingpositions:
twointhefrontandthreeintherear.Eachseat-
ingpositionhasasafetybelt.


ZAWARNING
Notwearingsafetybeltsorwearingthemim-
properlyincreasestheriskof seriouspersonal
injuryanddeath.
—Neverstrapmorethanoneperson,including
smallchildren,intoanybelt.Itisespecially
dangeroustoplaceasafetybeltovera child
sittingonyourlap.
—Neverletmorepeoplerideinthevehicle
thantherearesafetybeltsavailable.


—Besureeveryoneridinginthevehicleis
properlyrestrainedwithaseparatesafety
beltorchildrestraint.
Safetybeltwarninglight
Yourvehiclehasawarningsystemforthedriver
andfrontseatpassengertoremindyouabout
theimportanceofbuckling-up.



B42-0526


Fig.216Safetybeltwarninglightintheinstrumentclus-
ter-enlarged
Beforedrivingoff,always:
>Fastenyoursafetybeltandmakesureyouare
wearingitproperly.
>Makesurethatyourpassengersalsobuckleup
and
properlyweartheirsafetybelts.
>Protectchildrenwithachildrestraintsystem
appropriateforthesizeandage.
Thewarninglightintheinstrumentcluster
lightsupwhentheignitionisswitchedonasa re-
mindertofastenthesafetybelts.Inaddition,
youwillhearawarningtoneforacertainperiod
oftime.
Fastenyoursafetybeltandmakesure thatyour
passengersalsoproperlyputontheirsafety
belts.

ZAWARNING
—Safetybeltsarethesinglemosteffective
meansavailabletoreducetheriskofserious
injuryanddeathinautomobileaccidents.
Foryourprotectionandthat ofyourpassen-
gers,alwayscorrectlywearsafetybelts
whenthevehicleismoving.
—Failuretopayattentiontothewarninglight
thatcomesoncouldlead topersonalinjury.


253

8W0012721BG
Wheels

Tiredesignations

B8K-2316


Fig.262Tiredesignationsontheside-
wall
@Tiresforpassengervehicles
(ifapplicable)
"P"indicatesatireforapassenger
vehicle."T"indicatesatiredesig-
natedfortemporaryuse.
@Nominalwidth
Nominalwidthofthetirebe-
tweenthesidewallsinmillime-
ters.Ingeneral:thelargerthe
number,thewiderthetire.
@)Aspectratio
Height/widthratioexpressedasa
percentage.
@Tireconstruction
“R"indicatesaradialtire.
©)Rimdiameter
Sizeoftherimdiameterininches.
©Loadindexandspeedrating
Theloadindexindicatesthetire's
load-carryingcapacity.
Thespeedratingindicatesthe
maximumpermittedspeed.Also
see>AinGeneralinformationon
page322.
“EXTRALOAD”,“xl”or“RF”indi-
catesthatthetireisreinforcedor
isanExtraLoadtire.






Speedrat-/Maximumpermittedspeed
ing
Pupto93mph(150km/h)
Qupto99mph(160km/h)
Rupto106mph(170km/h)
Supto110mph(180km/h)
Tupto118mph(190km/h)
Uupto124mph(200km/h)
Hupto130mph(210km/h)
Vvupto149mph(240km/h)?
Zzabove149mph(240km/h)?
wupto168mph(270km/h)?
Yupto186mph(300km/h)?

@)Fortiresabove149mph(240km/h),
tiremanufacturerssometimesusethe
code“ZR”.
323

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Wheels

Glossaryoftireandloading
terminology
Accessoryweight
meansthecombinedweight(in
excessofthosestandarditems
whichmaybereplaced)ofauto-
matictransmission,powersteer-
ing,powerbrakes,powerwin-
dows,powerseats,radio,and
heater,totheextentthatthese
itemsareavailableasfactory-in-
stalledequipment(whetherin-
stalledornot).
Aspectratio
meanstheratioofthe heightto
thewidthofthetireinpercent.
Numbersof55orlowerindicatea
lowsidewallforimprovedsteer-
ingresponseandbetteroverall
handlingondrypavement.
Bead
meansthepartofthetirethatis
madeofsteelwires,wrappedor
reinforcedbyplycordsandthatis
shapedtofittherim.
Beadseparation
meansabreakdownofthebond
betweencomponentsinthebead.
Cord
meansthestrandsformingthe
pliesinthetire.
Coldtireinflationpressure
meansthetirepressurerecom-
mendedbythevehiclemanufac-
turerforatireofadesignated
sizethathasnotbeendrivenfor
morethanacoupleofmiles(kilo-
meters)atlowspeedsinthethree
hourperiodbeforethetirepres-
sureismeasuredoradjusted.
Curbweight
meanstheweightofamotorve-
hiclewithstandardequipmentin-
cludingthemaximumcapacityof
fuel,oil,andcoolant,aircondi-
tioningandadditionalweightof
optionalequipment.
Extraloadtire
meansatiredesignedtooperate
athigherloadsandathigherin-
flationpressuresthanthecorre-
spondingstandardtire.Extraload
tiresmaybeidentifiedas“XL”,
“xL’,“EXTRALOAD”,or“RF”on
thesidewall.
325

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Wheels

Productionoptionsweight
meansthecombinedweightof
thoseinstalledregularproduction
optionsweighingover5lbs.
(2.3kg)inexcessofthosestand-
arditemswhichtheyreplace,not
previouslyconsideredincurb
weightoraccessoryweight,in-
cludingheavy dutybrakes,ride
levelers,roofrack,heavyduty
battery,andspecialtrim.
Radialplytire
meansapneumatictireinwhich
theplycordsthatextendtothe
beadsarelaidatsubstantially
90degreestothecenterlineof
thetread.
Recommendedinflation
pressure
see>page325,Coldtireinfla-
tionpressure.
Reinforcedtire
meansatiredesignedtooperate
athigherloadsandathigherin-
flationpressuresthanthecorre-
spondingstandardtire.Rein-
forcedtiresmaybeidentifiedas
“XL”,“xl”,“EXTRALOAD”,or“RF”
onthesidewall.
Rim
meansametalsupportforatire
oratireandtubeassemblyupon
whichthetirebeadsareseated.
Rimdiameter
meansnominaldiameterofthe
beadseat.Ifyouchangeyour
wheelsize,youwillhavetopur-
chasenewtirestomatchthenew
rimdiameter.
Rimsizedesignation
meansrimdiameterandwidth.
Rimwidth
meansnominaldistancebetween
rimflanges.
Sidewall
meansthatportionofatirebe-
tweenthetreadandbead.
Speedrating(lettercode)
meansthespeedatwhichatireis
designedtobedrivenforextend-
edperiodsoftime.Theratings
rangefrom93mph(150km/h)
to186mph(298km/h)>table
onpage323.Youmaynotfind
thisinformationonalltiresbe-
causeitisnotrequiredbylaw.
Thespeedratinglettercode,
whereapplicable,ismoldedon
thetiresidewallandindicatesthe>
327

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Wheels

bythetiremanufacturer.Thisin-
formationisusedtocontactcon-
sumers
ifatiredefectrequiresa
recall.
Vehiclecapacityweight
meanstheratedcargoandlug-
gageloadplus150lbs.(68kilo-
grams)timesthevehicle'sdesig-
natedseatingcapacity.
Vehiclemaximumloadonthe
tire
meansthatloadonanindividual
tirethatisdeterminedbydistrib-
utingtoeachaxleitsshareofthe
maximumloadedvehicleweight
anddividingbytwo.
Vehiclenormalloadonthetire
meansthatloadonanindividual
tirethatisdeterminedbydistrib-
utingtoeachaxleitsshareofthe
curbweight,accessoryweight,
andnormaloccupantweight(dis-
tributedinaccordancewith>ta-
bleonpage334)anddividingby
two.
Occupantloadinganddistri-
butionforvehiclenormalload
forvariousdesignatedseating
capacities
Refertothetireinflationpressure
label>page332,fig.265forthe
numberofseatingpositions.Re-
fertothetable>tableon
page334forthenumberofpeo-
plethatcorrespondtothevehicle
normalload.
Newtiresorwheels
Audirecommendshavingallwork
ontiresorwheelsperformedby
anauthorizedAudidealerorau-
thorizedAudiServiceFacility.
Thesefacilitieshavethe proper
knowledgeandareequippedwith
therequiredtoolsandreplace-
mentparts.
>Newtiresdonotyethavethe
optimumgrippingproperties.
Drivecarefullyandatmoderate
speedsforthefirst350miles
(500km)withnewtires.
>Onlyusetireswiththesamede-
sign,size(rollingcircumfer-
ence),andas close tothesame
treadpatternas possibleonall
fourwheels.
>Donotreplacetiresindividually.
Atleastreplacebothtiresonthe
sameaxleatthesametime.
>Audirecommendsthatyouuse
AudiOriginalTires.Ifyouwould
liketousedifferenttires,please
notethatthetiresmayperform>
329

Wheels

differentlyeveniftheyarethe
samesize>A.
>Ifyouwouldliketoequipyour
vehiclewithatireandrimcom-
binationthatisdifferentfrom
whatwasinstalledatthefacto-
ry,consultwithanauthorized
AudidealerorauthorizedAudi
ServiceFacilitybeforemakinga
purchase>A.
Becausethesparetire”isdiffer-
entfromtheregulartiresinstal-
ledonthevehicle(suchaswinter
tiresorwidetires),onlyusethe
sparetire*temporarilyincaseof
emergencyanddrivecarefully
whileitisinuse.Itshouldbere-
placedwitha regulartireassoon
aspossible.
Appliesto:vehicleswithallwheel
drive:Allfourwheelsmustbe
equippedwithtiresthatarethe
samebrandandhavethesame
constructionandtreadpatternso
thatthedrivesystemisnotdam-
agedbydifferentwheelspeeds.
Forthisreason,incase ofemer-
gency,onlyuseasparetire*that
isthesamecircumferenceasthe
regulartires.
330


Z\WARNING
—Donotusesteelrims thatare
17inchesorlarger.Otherwise,
damagetothevehicleandan
accidentcouldresult.
—Onlyusetire/rimcombina-
tionsandsuitablewheelbolts
thathavebeenapprovedby
Audi.Otherwise,damageto
thevehicleandanaccident
couldresult.
—Fortechnicalreasons,itisnot
possibletousetiresfromoth-
ervehicles.Insomecases,you
cannotevenusetiresfromthe
samevehiclemodel.
—Makesurethatthetiresyou
selecthaveenoughclearance
tothevehicle.Replacement
tiresshouldnotbechosen
simplybasedonthenominal
size,becausetireswithadif-
ferentconstructioncandiffer
greatlyeveniftheyarethe
samesize.Ifthereisnot
enoughclearance,thetiresor
thevehiclecanbedamaged
andthiscanreducedriving
safetyandincreasetheriskof
anaccident.

Wheels

haveworndowntothetreadwear
indicators.Replacethetireswith
newones>A.
Tirerotation
Rotatingthetiresregularlyisrec-
ommendedtoensurethetires
wearevenly.Torotatethetires,
installthetiresfromtherearaxle
onthefrontaxleandviceversa.
Thiswillallowthetirestohave
approximatelythesamelengthof
servicelife.
Forunidirectionaltires,makesure
thetiresareinstalledaccordingto
therunningdirectionindicatedon
thetiresidewall>page354.
Hiddendamage
Damagetotiresandrimscanof-
tenoccurinlocationsthatarehid-
den.Unusualvibrationsintheve-
hicleorpullingtoonesidemay
indicatethatthereistiredamage.
Reduceyourspeedimmediately.
Checkthetiresfordamage.Ifno
damageisvisiblefromtheout-
side,driveslowlyandcarefullyto
thenearestauthorizedAudideal-
erorauthorizedAudiServiceFa-
cilitytohavethevehicleinspect-
ed.
332

Z\WARNING
Treadthathasworntoolowor
uneventreaddepthsonthe
tirescanreducedrivingsafety.
Thiscanincreasetheriskofan
accidentbecauseithasanega-
tiveeffectonhandling,driving
throughcurves,andbraking,
andbecauseitincreasesthe
riskofhydroplaningwhendriv-
ingthroughdeeppuddles.
SUTcwyee)
ef)




B8W-0152

Fig.264Driver'ssideB-pillar:tirepres-
surelabel


B8K-1151
SEATINGCAPACITYTOTALpyFRONTa)0NOMBREDEPLACESTOTALAVANTARRIEREa2Fr
19OFpmbs.xoou
TIRESIZE
PNEU_|DIMENSIONS
FRONT
AVANT,MaKPA,MMPSI
REAR
ARRIEREaKPA,MlPSI
‘SPARE
DESECOURSllKPA,MlPSI
COLDTIREPRESSURE
PRESSIONDESPNEUSAFROID





Fig.265Tirepressurelabel
Thecorrecttirepressurefortires
installedatthefactoryislistedon
alabel.Thelabelislocatedonthe>