fuel pressure AUDI S4 2019 Owners Manual

8W0012721BG
Instrumentcluster

iyTanksystem:malfunction!Pleasecontact
Service
Thereisamalfunctioninthefueltanksystem.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
@)Tips
Formoreinformationonfueling,see
=>page306.
®Washerfluidlevel
IfthegEindicatorlightturnson,thewasherflu-
idisalmostout.Fillthewasherfluidforthe
windshieldwashersystemandtheheadlight
washersystem*whentheignitionisswitchedoff
=>page320.
©!Windshieldwipers
Ifthe>indicatorlightturnson,thenthereisa
windshieldwipermalfunction.Drivetoanau-
thorizedAudidealerorauthorizedAudiService
Facilityimmediatelytohavethe malfunctioncor-
rected.
<3Driver'sdoor
|3}Driver'sdoor:malfunction!ShifttoPbefore
leavingvehicle.Seeowner'smanual
Thereisamalfunctioninthedriver'sdoor.Select
the"P"selectorleverposition(automatictrans-
mission)tosecurethevehicle.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
Bulbfailureindicator

IftheEaindicatorlightturnson,abulbhas
failed.Themessageindicatesthelocationofthe
bulb.Replace thebulbimmediately.
Vehiclelights:malfunction!Pleasecontact
Service
Thereisamalfunctionintheheadlightsorthe
lightswitch.DrivetoanauthorizedAudidealeror
authorizedAudiServiceFacilityimmediatelyto
havethemalfunctioncorrected.

Z\WARNING
—Lightbulbsareunderpressureandcanex-
plodewhenbulbsarereplaced,whichin-
creasestheriskofinjury.
—WithHIDheadlights(xenonheadlights),the
high-voltagecomponentmustbehandled
correctly.Otherwise,thereisariskoffatal
injury.


2©Dynamicheadlightrangecontrol
ByHeadlightrangecontrol:malfunction!See
owner'smanual
Thereisamalfunctioninthe headlightrange
controlsystem,whichmaycauseglareforother
drivers.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
ZOAudiadaptivelight
Appliesto:vehicleswithAudiadaptivelight
ByAudiadaptivelight:malfunction!Seeown-
er'smanual
Adaptivelightisnotworking.Theheadlightsstill
function.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
ComaAceals
aSAutomaticheadlights:malfunction!See
owner'smanual
aAutomaticwipers:malfunction!Seeowner's
manual
Thelight/rainsensorismalfunctioning.
Thelowbeamsremainswitchedonatalltimes
forsafetyreasonswhenthelightswitchisinthe
AUTOposition.However,youcancontinueto
turnthelightsonandoffusingthelightswitch.>
25

8W0012721BG
Trailertowing

Trailertowing
Drivingwithatrailer
Generalinformation
Yourvehicleisprimarilyintendedfortransport-
ingpeopleandluggage.However,ifyoudrive
withatrailer,followthetechnicalrequirements,
the operationanddrivingtips,andthelegalreg-
ulations.
Drivingwithatraileraffectsthevehicle'sfuel
consumption,performanceandwear.Italsore-
quireshigherconcentrationfromthedriver.

Z\WARNING
Donottransportanypeopleinatrailerdueto
theriskoffatalinjury.
Technicalrequirements
Certainrequirementsmustbemetwhentowing
atrailer.

Trailerhitch
Only useatrailerhitchwitharemovableball
hitchmountandballhitch.Thetrailerhitchmust
bepermittedforthevehicle,thetrailerandthe
permittedtotalweightofthetrailerbeing
pulled.Aboveall,itmustbesecurelyandsafely
attachedtothevehicletrailer.
Nevermountatrailerhitchonthebumper.The
trailerhitchmustbemountedinawaythatdoes
not impair thefunctionofthebumper.Donot
makeanychangestotheexhaustsystemandthe
brakesystem.
Checkregularlyifthetrailerhitchissecurely
mounted.Alwaysfollowtheinstructionsgivenby
thetrailerhitchmanufacturer.
Trailerbrakes
Ifthetrailerhasitsownbrakesystem,thenfol-
lowthemanufacturerspecifications.However,
thebrakesystemonthetrailermustneverbe
connectedtothevehiclebrakesystem.
Enginecoolingsystem
Drivingwithatrailermeansahigherloadonthe
engineandthecoolingsystem.Thecoolingsys-
temmustbedesignedforadditionalloadand
containenoughcoolant>@.
()Note
Longerinclinescannotbedrivenwithouta
suitablecoolingsystem,especiallyiftheout-
sidetemperaturesarehigh.Otherwise,this
increasestheriskofenginedamage.
Operatinginstructions
Severalthingsmustbenotedwhentowinga
trailer.
Towingcapacity
Yourvehiclecanonlybeoperatedwithclass1or
class2trailers.
Loaddistribution
Poorcargoloadanddistributioncannegatively
impactvehiclehandling.Loadthetrailerbased
onthefollowingcriteriaasmuchaspossible:
—Storeobjectsinthevehicleluggagecompart-
ment,ifpossible.Thevehicleshouldalways
carrytheheaviest possibleloadandthetrailer
shouldhavethelightestpossibleload.
—Distributetheloadinthetrailerso thatthe
heavyobjectsareasclosetotheaxleaspossi-
ble.
—Secureobjectsso thattheydonotslide.
—Utilizethemaximumpermittedtongueweight
ifpossible.
Tires
Setthetirepressureonyourvehiclefora“full
load”;seethetirepressuresticker>page332.If
necessary,alsoadjustthetirepressureonthe
traileraccordingtothemanufacturer'sspecifica-
tions.
Thetrailerandthevehicleshould beequipped
withwintertireswhendrivinginwintertempera-
tures.
93
>

Systemsettings

Systemsettings
Settingthedateand
time
Youcansettheclocktimemanuallyorusingthe
GPS*.

>Select:[MENU]button>Settings>leftcontrol
button>MMIsettings>Date&time.
>Or:select:[MENU]button>Vehicle>leftcon-
trolbutton>Vehiclesettings>Date&time.



Automaticsetting
Whenthisfunctionisswitchedon¥,thetime
anddateareautomaticallyset.
Time
Requirement:theAutomaticsettingmustbe
switchedoff.
Pressthecontrolknob.YoucansettheTime
manuallybyturningandpressingthecontrol
knob.
Date
Requirement:theAutomaticsettingmustbe
switchedoff.
Pressthecontrolknob.YoucansettheDate
manuallybyturningandpressingthecontrol
knob.
Timezone
Whenselectingtheappropriatetimezone,a
samplingofcountriesinthiszonewillbelisted.
Automatictimezone*
Whenthisfunctionisswitchedon,thetime
willautomaticallyadjusttothecorresponding
timezone.
Automaticdaylightsavingtime*
Whenthisfunctionisswitchedon¥,thetime
willautomaticallyswitchtodaylightsavingtime.

))TheQistandardmakesitpossibletocharge yourmobile
devicewirelessly.
240
Timeformat
Ifyouselect24h,theclockwilldisplay,forexam-
ple,13:00.IfyouselectAM/PM,theclockwill
display,forexample,1:00PM.
Dateformat
IfyouselectDD.MM.YYYY,thedatedisplaywill
show,forexample,31.08.2018.Ifyouselect
MM/DD/YYYY,thedatedisplaywillshow,forex-
ample,08/31/2018.IfyouselectYYYY-MM-DD,
thedatedisplaywillshow,forexample,
2018-08-31.
MMIsettings

>Select:[MENU]button>Settings>leftcontrol
button>MMIsettings.

Language
Youcanchangethedisplaylanguageaswellas
thelanguageforthevoiceguidance*andvoice
recognitionsystem*.
Thenumberoflanguagesavailabledependson
themarket.
Measurementunits
Thefollowingmeasurementunitscanbesetde-
pendingonavailability:Speed,Distance,Tem-
perature,Fuelconsumption,Volume,Pressure.
Mobiledeviceremindersignal
Appliesto:vehicleswith Audiphonebox
Requirement:yourcellphonemustbeQi-capa-
ble)orconnectedtothe Audimusicinterface@
withaUSBadaptercable>page174,fig.172.
Whenthedeviceremindersignalisswitchedon,
youwillbenotifiedthatyourmobiledeviceisstill
intheAudiphonebox*whenyouleavethevehi-
cle.YoucanselectbetweenSpokencue,Signal
toneandOff.
Mobiledeviceremindersignalvolume:youcan
adjusttheremindersignalvolumebyturningthe
controlknob.

8W0012721BG
CheckingandFilling

OnBoardDiagnosticSystem
EnginedatacanbereadoutattheOnBoardDi-
agnosticSystemconnectionportusingaspecial
testingdevice>fig.253.
Indicatorlight
IftheSindicatorlightblinksorturnson,there
isamalfunctionthatiscausingpooremissions
qualityandthatcoulddamagethecatalyticcon-
verter.DriveslowlytoanauthorizedAudidealer
orauthorizedAudiServiceFacilitytohave the
malfunction
corrected.
Theindicatorlightcanalsoturnonifthefuelfill-
ercapisnotclosedcorrectly>page306).

Z\WARNING
Incorrectuseofthe connectionportforthe
OnBoardDiagnosticSystemcancausemal-
functions,whichcanthenresultinaccidents
andseriousinjuries.
—OnlyallowanauthorizedAudidealerorau-
thorizedAudiServiceFacilitytoreadout the
enginedata.

Enginecompartment
MelatimimsaCeMtalemeen)Seen1n
Specialcareisrequiredifyouareworkinginthe
enginecompartment
Forworkintheenginecompartment,suchas
checkingandfillingfluids,thereisariskofin-
jury,scalding,accidents,andburns.Forthis
reason,followallthewarningsandgeneral
safetyprecautionsprovidedinthe followingin-
formation.Theenginecompartmentisadan-
gerousarea.>/\.

Z\WARNING
—Turntheengineoff.
—Switchtheignitionoff.
—Settheparkingbrake.
—Onvehicleswithamanualtransmission,
movethegearshiftlevertoneutral,andon


)Dependingontheengine


vehicleswithanautomatictransmission,se-
lectthe“P”(Park)position.
—Allowtheenginetocool.
—Keepchildrenawayfromtheenginecom-
partment.
—Neverspillfluidsonahotengine.Theseflu-
ids(suchastheanti-freezingagentcon-
tainedinthecoolant)canignite.
—Avoidshortcircuitsintheelectricalsystem.
—Neverreachintotheradiatorfan.Thefanis
temperature-controlledandcanturnon
suddenly,evenwhentheignitionisswitched
off.
—Neveropenthehoodwhenthereissteamor
coolantescapingfromtheenginecompart-
ment,becausethereisariskthatyoucould
beburned.Waituntilnosteamorcoolantis
escaping.
—Neveropenthecaponthecoolantexpan-
siontankwhentheengineiswarm.The
coolingsystemisunderpressure.
—Toprotectyourface,hands,andarmsfrom
hotsteamorcoolant,coverthecapwitha
thick clothwhenopening.
—Donotremovetheenginecoverunderany
circumstances.Thisincreasestheriskof
burns.
—Duetotheriskofelectricshock,nevertouch
theignitioncableorothercomponentsin
theelectronichigh-voltageignitionsystem
whentheengineisrunningorisstarting.
—Ifagearisengagedwhilethevehicleissta-
tionaryandtheengineisrunning,donot
presstheacceleratorpedalinadvertently.
Pressingtheacceleratorpedalwillcausethe
vehicletomove,andthiscouldresultinan
accident.
—Ifinspectionsorrepairsmustbeperformed
whiletheengineisrunning,movingcompo-
nents(suchastheribbedbelt,generator,
and
radiatorfan)poseanadditionalrisk.
—Firstsettheparkingbrake,andthenmove
thegearshiftlevertoneutralonvehicles
withamanualtransmissionorselectthe

309

CheckingandFilling

@®Engineoillabel*withVWstandard
=>page312
©Coolantexpansiontank(-£)>page316
©Brakefluidreservoir(C))>page317
Thecoolantexpansiontankandtheengineoil
fillingopeningmaybelocatedindifferentplaces
within
theenginecompartment,dependingon
theengineversion.
Engineoil
Iftheengineoillevelistoolow
Ifyouneedtoaddengineoil,useanoilthatis
listedonthesticker.Thestickerislocatedatthe
frontoftheenginecompartment>page311,
fig.256.
Iftherecommendedengineoilisnotavailable,in
anemergencyyoumayaddamaximumof1
quart(1liter)ofACEAC3orAPISNengineoil
onetimeuntilthenextoilchange.
Formoreinformationonthecorrectengineoil
foryourvehicle,contactanauthorizedAudideal-
erorauthorizedAudiServiceFacility.Havetheoil
changedbyanauthorizedAudidealerorauthor-
izedServiceFacility.

Audirecommends
Slastiol(ZIDIBIEProrzssional
AudirecommendsusingtheLongLifehigh-per-
formanceengineoilfromAudiGenuineParts.
Messages
Engineoilpressure


&Turnoffengine.Oilpressuretoolow
Stopdrivingandswitchtheengineoff.Checkthe
engineoillevel>page313.
—Iftheengineoillevelistoolow,addengineoil
=>page314.Onlycontinuedrivingoncethein-
dicatorlightturnsoff.
—Iftheengineoilleveliscorrectandtheindica-
torlightstillturnson,turntheengineoffand
do
notcontinuedriving.SeeanauthorizedAudi
dealerorauthorizedAudiServiceFacilityforas-
sistance.
312
Engineoillevel
Applies
to:vehicleswithoillevelwarning
BPleaseaddoilimmediately.
Stoptheengineanddonotcontinuedriving.
Checktheengineoillevel>page313and add
engineoilimmediately>page314.
2Pleaseaddmax.xqt(xl)oil.Youcancon-
tinuedriving
Addtheamountof oil shownimmediately
>page314.
Reducingtheoillevel
3Pleasereduceoillevel.
Thereistoomuchoilintheengineandthereisa
risk
ofdamagingthecatalyticconverteroren-
gine.DrivetoanauthorizedAudidealerorau-
thorizedAudiServiceFacilityimmediatelytohave
engineoilextractedifnecessary.Avoidhighen-
ginespeeds,fullacceleration,andheavyengine
loads.
Engineoilsensor
&Oillevelsensor:oilchangenecessary.Please
contactService
Fuelhasenteredtheengineoil.Thiswillcause
theengineoilleveltoriseslowlyandtheengine
oilqualitytodecrease.Donotextractengineoil
toreducethelevel,becausethiswillincreasethe
riskofenginedamage.DrivetoanauthorizedAu-
didealerorauthorizedAudiServiceFacilityim-
mediatelytohaveengineoilextracted.
&Oillevelsystem:malfunction!Pleasecon-
tactService
Thesensorthatcheckstheengineoillevelhas
malfunctioned.DrivetoanauthorizedAudideal-
erorauthorizedAudiServiceFacilityimmediately
tohavethemalfunctioncorrected.
2Oilpressuresensor:malfunction!Please
contactService
Thesensorthatcheckstheengineoilpressure
hasmalfunctioned.DrivetoanauthorizedAudi
dealerorauthorizedAudiServiceFacilityimmedi-
atelytohavethemalfunctioncorrected.

8W0012721BG
CheckingandFilling

Enginewarm-uprequest
|F|Pleasedrivetowarmupengine
Fuelhasenteredtheengineoil,eitherduetolow
outsidetemperaturesorfrequentshortdrives.
Driveuntiltheengineiswarmso thatthefuelin
theengineoilwillevaporate.Avoidhighengine
speeds,fullaccelerating,andheavyengineloads
whendoingthis.
@Tips
Theoilpressurewarning2isnotanoillevel
indicator.
Alwayschecktheoillevelregularly.
Checkingtheengineoillevel
TheengineoillevelcanbecheckedintheInfo-
tainmentsystem
Observethesafetyprecautions>A\inWorking
intheenginecompartmentonpage309.
>Parkthevehicleonalevelsurface.
>»Shuttheengineoffwhenitiswarm.
>Switchonlytheignitionbackon.
>Waitapproximatelytwominutes.
>SelectintheInfotainmentsystem:the[MENU
button>Vehicle>leftcontrolbutton>Service
&checks>Oillevel.
>Readtheoillevelinthedisplay.Addengineoil
ifthe barintheoillevelindicatorisjustbelow
“min”>page314.
@)Note
Iftheengineoillevelistoolowortoohigh,
thereisariskofenginedamage.
@)Tips
Theoillevelindicatorinthedisplayisonlyan
informationaldisplay.Iftheoillevelistoo
low,aminimumoilwarningappearsinthein-
strumentcluster.Addoilandclosethehood.
ThecurrentoillevelisdisplayedintheInfo-
tainmentsystemthenexttimetheignitionis
switchedon.
@Tips
Theengineoilconsumptionmaybeupto
0.5quart/600miles(0.5liter/1,000km),de-


pendingondrivingstyleandoperatingcondi-
tions.Consumptionmaybehigherduring the
first3,000miles(5,000km).Theengineoil
levelmustbecheckedregularly.Itisbestto
check eachtimeyourefuelyourvehicleand
before longdrives.
—Becauseofthelubricationandcoolingof
theengine,combustionenginesconsume
oil.Theoilconsumptionvariesdepending
ontheengineandmaychangeduring the
servicelifeoftheengine.Enginesgenerally
consumemoreoilatthe beginningduring
thebreak-inperiod.Thenoilconsumption
stabilizes afterthebreak-inperiod.
—Undernormalconditions,oilconsumption
dependsonthequalityandviscosityofthe
oil,theengineRPM,theclimateconditions,
andtheroadconditions.Thedilutionofoil
fromcondensationorfuelresidueaswellas
theageoftheoilalso playarole.Because
enginewearincreaseswithmileage,oilcon-
sumptionwillincreaseagainovertimeuntil
itmaybenecessarytoreplaceworncompo-
nents.
—Becauseallthesevariablesplayarole,itis
notpossibletodefineanoilconsumption
standard.Therefore,theoillevelmustbe
checkedregularly.
—Ifyoubelievethatyourenginehasin-
creaseditsoilconsumption,contactanau-
thorizedAudidealerorauthorizedAudi
ServiceFacilitytodeterminethecause.
Pleasenotethatanexactoilconsumption
measurementmustbedonewiththeneces-
sary careandaccuracyandmaytaketime.
AnauthorizedAudidealerorauthorizedAu-
diServiceFacilityistrainedinaccurately
measuringtheoilconsumption.
—Youcanfindinformationonengineoiland
engineoilcapacitiesfortheUSAatwww.
audiusa.com/help/maintenance,orforCan-
adaatwww.audi.ca/ca/web/en/
customer-area/care-and-maintenance/
audi-service-schedules.html,orcall
800-822-2834.
313

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

Tirepressurethatistoolowin-
creasesfuelconsumption.
Uwedeem]9)
PleasenotethattheinformationMakesurethatthetiredesigna-
containedinthefollowingtabletiononyourtirematchesthedes-
wascorrectatthetimeofprint-ignationonthetirepressurelabel
ing,andtheinformationissub-andthetirepressuretable.
jecttochange.Ifthereareany
differences,youshould always
followthetirepressuresticker
=>page332,fig.264.
Thefollowingtablelistsrecom-
mendedtirepressuresincold
tiresaccordingtotheloadand
thesizeofthetiresinstalled.









A4sedan:225/50 R1794H30|210|28|190|32|220|32|220
2.0L245/40 R1893Y30|210|28|190|32|220]32|220
acrid245/40 R1897H35|240|32|220|35|240]35|240
Pp
Gasolineen-|245/35R1993Y35|240|32|220|36|250]39|270
gine
A4sedan:225/50 R1794H30|210|28|190|35|240]35|240
2.0L245/40 R1893Y30|210|28|190|33|230]33|230
toon245/40R1897H|35|240|32|220|36|250|36|250
Pp.
Gasolineen-|245/35R1993Y36|250|33|230|41|280|44|300
gine
S4sedan:245/40 R1897Y36|250|33|230|38|260]38|260
3.0L245/40 R1897H35|240|32|220|36|250|36|250
6-cylinder245/35R1993Y39|270|35|240|44|300]45|310
Gasolineen-
gine

334

8W0012721BG
Wheels







Model/TiredesignationTirepressure
EngineNormalloadMaximumload
(upto3people)”
FrontRearFrontRear
PSIkPAPSIkPAPSIkPAPSIkPA
allroad:225/55R1797Y32220292003323030210
2.0L245/45R1896Y32|220|29|200|35|240|32|220
4-cylinder—(345/45R18100H|32|220|32|220|35|240/35|240
gasolineen-
gine245/40R1998Y35240322203826035240


AWARNING
Pleasenotetheimportantsafe-
typrecautionsregardingtire
pressure>page332andload

limits>page335.
Tiresandvehicleloadlimits
Therearelimitstotheamountof
loadorweightthatanyvehicle
andanytirecancarry.Avehicle
thatisoverloadedwillnothandle
wellandismoredifficulttostop.
Overloadingcan notonlyleadto
lossofvehiclecontrol,butcanal-
sodamageimportantpartsofthe
vehicleandcanleadtosudden
tirefailure,includingablowout
andsuddendeflationthatcan
causethevehicletocrash.

Yoursafetyandthat ofyourpas-
sengersalsodependsonmaking
surethatloadlimitsarenotex-
ceeded.Vehicleload includesev-
a)Twopeopleinthefront,onepersonintherear
erybodyandeverythinginand on
thevehicle.Theseloadlimitsare
technicallyreferred toasthevehi-
cle’sGrossVehicleWeightRating
(“GVWR”).
The“GVWR”includestheweight
ofthebasicvehicle,allfactoryin-
stalledaccessories,afulltankof
fuel,oil,coolantandotherfluids
plusmaximumload.Themaxi-
mumload includesthenumberof
passengersthatthevehicleisin-
tendedtocarry(“seatingcapaci-
ty”)withanassumedweightof
150lbs.(68kg)foreachpassen-
geratadesignatedseatingposi-
tionandthetotalweightofany
luggageinthevehicle.Ifyoutow
atrailer,theweightofthetrailer
hitchandthetongueweightof
the loadedtrailermustbeinclud-
edaspart ofthevehicleload.
TheGrossAxleWeightRating
(“GAWR”)isthemaximumload
335
>

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.