2019 AUDI TT COUPE tires

Wheels

@USDOTnumber(TIN)and
manufacturedate
Themanufacturedateislistedon
thetiresidewall(itmayonlyap-
pearontheinnersideofthetire):
DOT...2218...
means,forexample,thatthetire
wasproducedinthe22ndweekof
theyear2018.
@)AudiOriginalTires
AudiOriginalequipmenttires
withthedesignation“AO”have
beenspeciallymatchedtoyour
Audi.Whenusedcorrectly,these
tiresmeetthehigheststandards
forsafetyandhandling.Anau-
thorizedAudidealerorauthor-
izedAudiServiceFacilitywillbe
abletoprovideyouwithmorein-
formation.
@)Mudandsnowcapability
“M/S”or“M+S”indicatesthetire
haspropertiesmakingitsuitable
todriveinmudorsnow.4indi-
catesawintertire.
Compositionofthetirecord
andmaterials
Thenumberofpliesindicatesthe
numberofrubberizedfabriclay-
ersinthetire.Ingeneral:the
morelayers,themoreweighta
250
tirecancarry.Tiremanufacturers
mustalsospecifythematerials
usedinthetire.Theseinclude
steel,nylon,polyesterandother
materials.
@Maximumpermittedload
Thisnumber indicatesthemaxi-
mumloadinkilogramsand
poundsthatthetirecancarry.
@Uniformtirequalitygrade
standardsfortreadwear,
tractionandtemperature
resistance
Treadwear,tractionand tempera-
tureranges>page264.
@Runningdirection
@Maximumpermitted
inflationpressure
Thisnumberindicatesthemaxi-
mumpressuretowhichatirecan
beinflatedundernormaloperat-
ingconditions.
Glossaryoftireandloading
terminology
Accessoryweight
meansthecombinedweight(in
excessofthosestandarditems
whichmaybereplaced)ofauto-
matictransmission,powersteer-
ing,powerbrakes,power

8S1012721BA
Wheels

windows,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.
GrossAxleWeightRating
(“GAWR”)
meanstheload-carryingcapacity
ofasingleaxlesystem,measured
atthetire-groundinterfaces.
GrossVehicleWeightRating
(“GVWR”)
meansthemaximumtotalloaded
weightofthevehicle.
Groove
meansthespacebetweentwoad-
jacenttreadribs.
251
>

Wheels

Loadrating(code)
meansthemaximumloadthata
tireisratedto carryforagivenin-
flationpressure.Youmaynotfind
thisinformationonalltiresbe-
causeitisnotrequiredbylaw.
Maximumloadrating
meanstheloadratingforatireat
themaximumpermissibleinfla-
tionpressureforthattire.
Maximumloadedvehicle
weight
meansthesumof:
(a)Curbweight
(b)Accessoryweight
(c)Vehiclecapacityweight,and
(d)Productionoptionsweight
Maximum(permissible)
inflationpressure
meansthemaximumcoldinfla-
tionpressuretowhichatiremay
beinflated.Alsocalled“maxi-
muminflationpressure.”
Normaloccupantweight
means150lbs(68kg)timesthe
numberofoccupantsseatedin
thevehicleuptothetotalseating
capacityofyourvehicle.
252
Occupantdistribution
meansdistributionofoccupants
inavehicle.
Outerdiameter
meanstheoveralldiameterofan
inflatednewtire.
Overallwidth
meansthelineardistancebe-
tweentheexteriorsoftheside-
wallsofaninflatedtire,including
elevationsduetolabeling,deco-
rations,orprotectivebandsor
ribs.
Ply
meansalayerofrubber-coated
parallelcords.
Productionoptionsweight
meansthecombinedweightof
thoseinstalledregularproduction
optionsweighingover5lbs
(2.3kg)inexcessofthosestand-
arditemswhichtheyreplace,not
previouslyconsideredincurb
weightoraccessoryweight,in-
cludingheavy dutybrakes,ride
levelers,roofrack,heavyduty
battery,andspecialtrim.
Radialplytire
meansapneumatictireinwhich
theplycordsthatextendtothe>

8S1012721BA
Wheels

beadsarelaidatsubstantially
90degreestothecenterlineof
thetread.
Recommendedinflation
pressure
see>page251,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
onpage249.Youmaynotfind
thisinformationonalltiresbe-
causeitisnotrequiredbylaw.
Thespeedratinglettercode,
whereapplicable,ismoldedon
thetiresidewallandindicatesthe
maximumpermissibleroad
speeds.Seealso> AinGeneral
informationonpage248.
Tirepressuremonitoring
system*
meansasystemthatdetects
whenoneormoreofavehicle's
tiresareunderinflatedandillumi-
natesalowtirepressurewarning
telltale.
Tread
meansthatportionofatirethat
comesintocontactwiththeroad.>
253

Wheels

Treadseparation
meanspullingawayofthetread
fromthetirecarcass.
Treadwearindicators(TWI)
meanstheprojectionswithinthe
principalgroovesdesignedtogive
avisualindicationofthedegrees
ofwearofthetread.See
=page257,Treadwearindicator
formoreinformationonmeasur-
ingtirewear.
UniformTireQualityGrading
isatireinformationsystemdevel-
opedbytheUnitedStates Nation-
alHighwayTrafficSafetyAdminis-
tration(NHTSA)thatisdesigned
tohelpbuyersmakerelativecom-
parisonsamongtires.TheUTQGis
notasafetyratingandnotaguar-
anteethatatirewill lastfora
prescribednumberofmiles(kilo-
meters)orperforminacertain
way.Itsimplygivestirebuyers
additionalinformationtocom-
binewithotherconsiderations,
suchasprice,brandloyaltyand
dealerrecommendations.Under
UTQG,tiresaregradedbythetire
manufacturersinthreeareas:
treadwear,traction,and tempera-
tureresistance.TheUTQGinfor-
254
mationonthetires,moldedinto
thesidewalls.
U.S. DOTTireIdentification
Number(TIN)
Thisisthetire’s“serialnumber”.
Itbegins withtheletters“DOT”
andindicatesthatthetiremeets
allfederalstandards.Thenext
twonumbersorlettersindicate
theplantwhereitwasmanufac-
tured,andthelastfournumbers
representtheweekandyearof
manufacture.Forexample,
DOT...2218...
meansthatthetirewasproduced
inthe22ndweekof2018.The
othernumbersaremarketingco-
desthatmayormaynotbeused
bythetiremanufacturer.Thisin-
formationisusedtocontactcon-
sumersifatiredefectrequiresa
recall.
Vehiclecapacityweight
meanstheratedcargoandlug-
gageloadplus150lbs(68kg)
timesthevehicle'sdesignated
seatingcapacity.
Vehiclemaximumloadonthe
tire
meansthatloadonanindividual
tirethatisdeterminedby

8S1012721BA
Wheels

distributingtoeachaxleitsshare
ofthemaximumloadedvehicle
weightanddividingbytwo.
Vehiclenormalloadonthetire
meansthatloadonanindividual
tirethatisdeterminedbydistrib-
utingtoeachaxleitsshareofthe
curbweight,accessoryweight,
andnormaloccupantweight(dis-
tributedinaccordancewith>ta-
bleonpage260)anddividingby
two.
Occupantloadinganddistri-
butionforvehiclenormalload
forvariousdesignatedseating
capacities
Refertothetireinflationpressure
labelforthenumberofseating
positions.Refertothetable>ta-
bleonpage260forthenumber
ofpeoplethatcorrespondtothe
vehiclenormalload.
Newtiresorwheels
Audirecommendshavingallwork
ontiresorwheelsperformedby
anauthorizedAudidealerorau-
thorizedAudiServiceFacility.
Thesefacilitieshavetheproper
knowledgeandareequippedwith
therequiredtoolsandreplace-
mentparts.
>Newtiresdonotyethavethe
optimumgrippingproperties.
Drivecarefullyandatmoderate
speedsforthefirst350miles
(500km)withnewtires.
>Onlyusetireswiththesamede-
sign,size(rollingcircumfer-
ence),andas close tothesame
treadpatternas possibleonall
fourwheels.
>Appliesto:RSmodels:Onlyuse
tireswiththesamedesign,size
(rollingcircumference),andthe
sametreadpatternonallfour
wheels.
>Donotreplacetiresindividually.
Atleastreplacebothtiresonthe
sameaxleatthesametime.
>Audirecommendsthatyouuse
AudiOriginalTires.Ifyouwould
liketousedifferenttires,please
notethatthetiresmayperform
differentlyeveniftheyarethe
samesize>A.
>Ifyouwouldliketoequipyour
vehiclewithatireandrimcom-
binationthatisdifferentfrom
whatwasinstalledatthefacto-
ry,consultwithanauthorized
AudidealerorauthorizedAudi
ServiceFacilitybeforemakinga
purchase>A.
255

Wheels

Becausethesparetire®isdiffer-
entfromtheregulartiresinstal-
ledonthevehicle(suchaswinter
tiresorwidetires),onlyusethe
sparetire*temporarilyincaseof
emergencyanddrivecarefully
whileitisinuse.Itshouldbere-
placedwitharegulartireassoon
aspossible.
Appliesto:vehicleswithallwheel
drive: Allfourwheelsmustbe
equippedwith tiresthatarethe
samebrandandhavethesame
constructionandtreadpatternso
thatthedrivesystemisnotdam-
agedbydifferentwheelspeeds.
Forthisreason,incase ofemer-
gency,onlyuseasparetire*that
isthesamecircumferenceasthe
regulartires.


Z\WARNING
—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.
—Onlyusetiresthataremore
thansixyearsoldwhenabso-
lutelynecessaryanddrive
carefullywhendoingso.
—Donot userun-flattireson
yourvehicle.Usingthemwhen
notpermittedcanleadtove-
hicledamageoraccidents.
—Ifyouinstallwheelcoverson
thevehicle,makesuretheyal-
lowenoughaircirculationto
coolthebrakesystem.Ifthey
donot,thiscouldincreasethe
riskofanaccident.


256

8S1012721BA
Wheels

Tirewearanddamage

a
=
g=y7ao
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tor
Tirewear
Checkthetiresregularlyforwear.
—Inflationpressurethatistoolow
orhighcanincreasetirewear
considerably.
—Drivingquicklythroughcurves,
rapidacceleration,andheavy
brakingincreasetirewear.
—HaveanauthorizedAudidealer
orauthorizedAudiServiceFacili-
tycheckthewheelalignmentif
thereisunusualwear.
—Havethewheelsrebalancedifan
imbalanceiscausingnoticeable
vibrationinthesteeringwheel.
Ifyoudonot,thetiresandother
vehiclecomponentscouldwear
morequickly.

DObeyanyapplicableregulationsinthe
country
wherethevehicleisbeingoper-
ated.
Treadwearindicator
Originalequipmenttirescontain
treadwearindicatorsinthetread
pattern,whicharebarsthatare
1/16in(1.6mm)highandare
spacedevenlyaroundthetireper-
pendiculartotherunningdirec-
tion>fig.190.Theletters“TWI”
ortrianglesonthetiresidewall
indicatethelocationofthetread-
wearindicators.
Thetireshavereachedthemini-
mumtreaddepth))whenthey
haveworndowntothetreadwear
indicators.Replacethetireswith
newones>A.
Tirerotation
Rotatingthetiresregularlyisrec-
ommendedtoensurethetires
wearevenly.Torotatethetires,
installthetiresfromtherear axle
onthefrontaxleandviceversa.
Thiswillallowthetirestohave
approximatelythesamelengthof
servicelife.
Forunidirectionaltires,makesure
thetiresareinstalledaccordingto»
257