2019 AUDI S4 four wheel drive

Wheels

treadpattern),summertiresprovidelesstraction
oniceandsnow.
>Usewintertiresonallfourwheels.
>Onlyusewintertiresthatareapprovedforyour
vehicle.
>Pleasenotethatthemaximumpermitted
speedmaybe lowerwithwintertires>A\in
Generalinformationonpage322.Anauthor-
izedAudidealerorauthorizedAudiServiceFa-
cilitycan informyouaboutthemaximumper-
mittedspeedforyourtires.
>Checkthetirepressureafterinstallingwheels
=>page332.
Theeffectivenessofwintertiresisreducedgreat-
lywhenthetreadisworndowntoadepthof
0.16in(4mm).Thecharacteristicsofwintertires
alsodecreasegreatlyasthetireages,regardless
oftheremainingtread.
@Forthesakeoftheenvironment
Reinstallsummertiresattheappropriate
time,becausetheyprovidebetterhandling
whenroadsarefreeofsnowandice.Summer
tirescauselessroadnoise,tirewear,andfuel
consumption.
@Tips
Youcanalsouseallseasontiresinsteadof
wintertires.Pleasenotethatinsomecoun-
trieswherewintertiresare required,onlywin-
tertireswiththe-4\symbolmaybepermit-
ted.
Snowchainsimprovebothdrivingandbrakingin
winterroadconditions.
>Onlyinstallsnowchainsonthefrontwheels.
>Checkandcorrecttheseatingofthesnow
chainsafterdrivingafewfeet,ifnecessary.Fol-
lowtheinstructionsfromthemanufacturer.
>Notethemaximumspeedof30mph
(50 km/h).Observethelocalregulations.
Useofsnowchainsisonlypermittedwithcertain
rim/tirecombinationsduetotechnicalreasons.
CheckwithanauthorizedAudidealerorauthor-
338
izedAudiServiceFacilitytoseeifyoumayuse
snowchains.
Usefine-meshsnowchains.Theymustnotadd
morethan 0.53in(13.5mm)inheight,including
thechainlock.
Youmustremovethesnowchainsonroadswith-
outsnow.Otherwise,youcouldimpairdriving
abilityanddamagethetires.

Z\WARNING
Usingincorrectsnowchainsorinstallingsnow
chainsincorrectlycanresultinlossofvehicle
control,whichincreasestheriskofanacci-
dent.
C)Note
Snowchainscandamagetherimsandwheel
covers*ifthechainscomeintodirectcontact
withthem.Removethewheelcovers*first.
Usecoatedsnowchains.
G)Tips
Whenusingsnowchains,itmaybeadvisable
tolimittheESC>page139.
Low-profiletires
Appliesto:vehicleswithlow-profiletires

Comparedtoothertire/rimcombinations,low-
profiletiresofferawidertreadsurfaceanda
largerrimdiameterwithshortertiresidewalls.
Thisresultsinanagiledrivingstyle.However,it
mayreducethelevelofcomfortandincrease
roadnoisewhendrivingonroadsinpoorcondi-
tion.
Low-profiletirescanbecomedamagedmore
quicklythanstandardtireswhendrivingover
largebumps,potholes,manholecovers,and
curbs.Therefore,itisparticularlyimportantto
maintainthecorrecttirepressure>page332.
Toreducetheriskofdamagetothetiresand
rims, driveverycarefullyonpoorroads.
Checkyourwheelsregularlyevery2,000mi
(3,000km)fordamage.Forexample,checkfor
bulges/cracksonthetiresordeformations/cracks
ontherims.

Wheels

thevehicleplacardortireinflationpressurela-
bel,youshoulddeterminethepropertireinfla-
tionpressureforthosetires).
Asanaddedsafetyfeature,yourvehiclehasbeen
equippedwithatirepressuremonitoringsystem
(TPMS)thatilluminatesalowtirepressuretell-
talewhenoneormoreofyourtiresissignificant-
lyunder-inflated.Accordingly,whenthelowtire
pressuretelltaleilluminates,youshouldstopand
checkyourtiresassoonaspossible,andinflate
themtotheproperpressure.Drivingonasignifi-
cantlyunder-inflatedtirecausesthetiretoover-
heatandcanleadtotirefailure.Under-inflation
alsoreducesfuelefficiencyandtiretreadlife,
andmayaffectthevehicle'shandlingandstop-
pingability.
PleasenotethattheTPMSisnotasubstitutefor
propertiremaintenance,anditisthedriver'sre-
sponsibilitytomaintaincorrecttirepressure,
evenifunder-inflationhasnot reachedthelevel
totriggerilluminationoftheTPMSlowtirepres-
suretelltale.
YourvehiclehasalsobeenequippedwithaTPMS
malfunctionindicatortoindicatewhenthesys-
temisnotoperatingproperly.TheTPMSmal-
functionindicatoriscombinedwiththelowtire
pressuretelltale.Whenthesystemdetectsa
malfunction,thetelltalewillflashforapproxi-
matelyoneminuteandthenremaincontinuously
illuminated.Thissequencewillcontinueupon
subsequentvehiclestart-ups aslongasthemal-
functionexists.
Whenthemalfunctionindicatorisilluminated,
thesystemmaynotbeabletodetectorsignal
lowtirepressureasintended.TPMSmalfunctions
mayoccurforavarietyofreasons,includingthe
installationofreplacementoralternatetiresor
wheelsonthevehiclethatpreventtheTPMS
fromfunctioningproperly.Alwayscheckthe
TPMSmalfunctiontelltaleafterreplacingoneor
moretiresorwheelsonyourvehicletoensure
thatthereplacementoralternatetiresand
wheelsallowtheTPMStocontinuetofunction
properly.
340

Ifthetirepressuremonito
appears
Appliesto:vehicleswithTirePressureMonitoringSystemin-
dicator
gindicator
Thetirepressureindicatorintheinstrument
clusterinformsyouifthetirepressureistoolow
orifthereisasystemmalfunction.
UsingtheABSsensors,thetirepressuremonitor-
ingsystemcomparesthetiretreadcircumference
andvibrationcharacteristicsoftheindividual
tires.Ifthepressurechangesinoneormore
tires,thisisindicatedintheinstrumentcluster
displaywithanindicatorlight@andamessage.
Ifonlyonetireisaffected,thelocationofthat
tirewillbeindicated.
ThetirepressuresmustbestoredintheInfotain-
mentsystemagaineachtimethepressures
change(switchingbetweenpartialandfullload
pressure)orafterchangingorreplacinga tireon
yourvehicle>page341.Thetirepressuremoni-
toringsystemonlymonitorsthetirepressureyou
havestored.Refertothetirepressurelabelfor
therecommendedtirepressureforyourvehicle
=>page332,fig.265.
Tiretreadcircumferenceandvibrationcharacter-
isticscanchangeandcauseatirepressurewarn-
ingif:
—Thetirepressureinoneormoretiresistoolow
—Thetireshavestructuraldamage
—Thetirewasreplacedorthetirepressurewas
changedanditwasnotstored>page 341
—
Tiresthatareonlypartiallyusedarereplaced
withnewtires
Indicatorlights
@®-Lossof pressureinatleastonetire>A\.
Checkthetiresandreplaceorrepairifnecessary.
Check/correctthepressuresofallfourtiresand
storethepressureagainintheInfotainmentsys-
tem>page341.
is(TirePressureMonitoringSystem)Tirepres-
sure:malfunction!Seeowner'smanual.fi
appearsafterswitchingtheignitiononorwhile
drivingandthe(19)indicatorlightintheinstru-
mentclusterblinksforapproximatelyoneminute
andthenstayson,thereissystemmalfunction.>

8W0012721BG
Wheels

Trytostorethecorrecttirepressures
=>page341.Insomecases,youmustdrivefor
severalminutesafterstoringthepressuresuntil
theindicatorlightturnsoff.Iftheindicatorlight
doesturnofforturnsonagainafterashortperi-
odoftime,drivetoanauthorizedAudidealeror
authorizedAudiServiceFacilityimmediatelyto
have themalfunctioncorrected.

ZA\WARNING
—Ifthetirepressureindicatorappearsinthe
display,reduceyourspeedimmediatelyand
avoidanyhardsteeringorbrakingmaneu-
vers.Stopassoonaspossibleandcheckthe
tiresandtheirpressure.
—Thedriverisresponsibleformaintainingthe
correcttirepressure.Youmustcheckthe
tirepressureregularly.
—Undercertainconditions(suchasasporty
drivingstyle,winterconditions,orunpaved
roads),thetirepressuremonitoringsystem
indicatormaybedelayed.

@)Tips
—Thetirepressuremonitoringsystemcanal-
sostopworkingwhenthereisanESCmal-
function.
—Usingsnowchainsmayresultinasystem
malfunction.
—Thetirepressuremonitoringsysteminyour
Audiwascalibratedwith“AudiOriginal
Tires”>page329.Usingthesetiresisrec-
ommended.
Storingtirepressures
Appliesto:vehicleswithTirePressureMonitoringSystemin-
dicator
Ifthetirepressurechangesoratireisreplaced,
itmustbeconfirmedinthe Infotainmentsys-
tem.
>Beforestoringthetirepressures,makesurethe
tirepressuresinallfourtiresmeetthespeci-
fiedvaluesandareadaptedtotheload
=>page332.
>Switchtheignitionon.
>SelectintheInfotainmentsystem:[MENU]but-
ton>Vehicle>Service&checks>Tirepressure


monitoring>Storetirepressure>Yes,store
now.
@Tips
Donotstorethetirepressuresifsnowchains
areinstalled.
341