2019 AUDI A4 ESP

8W0012721BG
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

Wheels

GrossAxleWeightRating
(“GAWR”)
meanstheload-carryingcapacity
ofasingleaxlesystem,measured
atthetire-groundinterfaces.
GrossVehicleWeightRating
(“GVWR”)
meansthemaximumtotalloaded
weightofthevehicle.
Groove
meansthespacebetweentwoad-
jacenttreadribs.
Loadrating(code)
meansthemaximumloadthata
tireisratedtocarryforagivenin-
flationpressure.Youmaynotfind
thisinformationonalltiresbe-
causeitisnotrequiredbylaw.
Maximumloadrating
meanstheloadratingforatireat
themaximumpermissibleinfla-
tionpressureforthattire.
Maximumloadedvehicle
weight
meansthesumof:
(a)Curbweight
(b)Accessoryweight
(c)Vehiclecapacityweight,and
(d)Productionoptionsweight
326
Maximum(permissible)
inflationpressure
meansthemaximumcoldinfla-
tionpressuretowhichatiremay
beinflated.Alsocalled“maxi-
muminflationpressure.”
Normaloccupantweight
means150lbs.(68kilograms)
timesthenumberofoccupants
seatedinthevehicleuptotheto-
talseatingcapacity ofyourvehi-
cle.
Occupantdistribution
meansdistributionofoccupants
inavehicle.
Outerdiameter
meanstheoveralldiameterofan
inflatednewtire.
Overallwidth
meansthelineardistancebe-
tweentheexteriorsoftheside-
wallsofaninflatedtire,including
elevationsduetolabeling,deco-
rations,orprotectivebandsor
ribs.
Ply
meansalayerofrubber-coated
parallelcords.

8W0012721BG
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>

8W0012721BG
Wheels

B-pillar(driver'sside)>fig.264,
>fig.265.Thelocationmayvary
dependingonthemodel.
Usethetirepressurespecifiedfor
anormalvehicleloadwhenthe
vehicleispartiallyloaded>table
onpage334.Ifdrivingthevehi-
clewhenfullyloaded,youmust
increasethetirepressuretothe
maximumspecifiedpressure>A.
Checkingandcorrectingtire
pressure
>Checkthetirepressureatleast
oncepermonthandalsocheckit
beforeeverylongdrive.
>Alwayscheckthetirepressure
whenthetiresarecold.Donot
reducethepressureifitincreas-
eswhenthetiresarewarm.
>Checkthelabel>fig.265for
thecorrecttirepressurebased
onvehicleload.
>Correctthetirepressureifnec-
essary.
>Storethenewtirepressurein
theInfotainmentsystem
>page341.
>Checkthepressureinthespare
tire(compactsparetire)*.Al-
waysmaintainthemaximum
temperaturethatisspecifiedfor
thetire.


Z\WARNING
Alwaysadaptthetirepressure
toyourdrivingstyleandtheve-
hicleload.
—Overloadingcanleadtolossof
vehiclecontrolandincrease
theriskofanaccident.Read
and
followtheimportantsafe-
typrecautionsin>page335,
Tiresandvehicleloadlimits.
—Thetiremustflexmoreifthe
tirepressureistooloworif
thevehiclespeedor loadare
toohigh.Thisheatsthetireup
toomuch.Thisincreasesthe
riskofanaccidentbecauseit
cancausethetiretoburstand
resultinlossofvehiclecon-
trol.
—Incorrecttirepressureincreas-
estirewearandhasanegative
effectondrivingandbraking
behavior,whichincreasesthe
riskofanaccident.

()Note
Replacelostvalvecapstore-
ducetheriskofdamagetothe
tirevalves.
333

Wheels

thatcanbeappliedateachofthe
vehicle’stwoaxles.
Thefactthat thereisanupper
limittoyourvehicle’sGrossVehi-
cleWeightRatingmeansthatthe
totalweightofwhateverisbeing
carriedinthevehicle (including
theweightofatrailerhitchand
thetongueweightofthe loaded
trailer)islimited.Themorepas-
sengersinthevehicle orpassen-
gerswhoareheavierthanthe
standardweightsassumedmean
thatlessweightcanbecarriedas
luggage.
TheGrossVehicleWeightRating
andtheGrossAxleWeightRating
arelistedonthesafetycompli-
ancestickeronthedriver’ssideB-
pillarrespectivelyonthefront
endofthedriver'sdoor.

Z\WARNING
Overloadingavehiclecancause
lossofvehiclecontrol,acrash
orotheraccident,seriousper-
sonalinjury,andevendeath.
—Carryingmoreweightthan
yourvehiclewasdesignedto
carrywillpreventthevehicle
fromhandlingproperlyandin-
creasetheriskofthelossof
vehiclecontrol.

336

—Thebrakesonavehiclethat
hasbeenoverloadedmaynot
beabletostopthevehicle
withinasafedistance.
—Tiresonavehiclethathas
beenoverloadedcanfailsud-
denly,includingablowoutand
suddendeflation,causingloss
ofcontrolandacrash.
—Alwaysmakesurethattheto-
talloadbeingtransported-
includingtheweightofatrail-
erhitchandthetongue
weightofaloadedtrailer-
doesnotmakethevehicle
heavierthanthevehicle’s

GrossVehicleWeightRating.
Determiningcorrectload
Thali
Usetheexamplebelowtocalcu-
latethetotalweightofthepas-
sengersandluggageorother
thingsthatyouplantotransport
sothatyoucanmakesurethat
yourvehiclewillnotbeoverload-
ed.

StepsforDeterminingCorrect
LoadLimit
1.Locatethestatement“THE
COMBINEDWEIGHTOFOCCU-
PANTSANDCARGOSHOULD>