2019 AUDI S4 Pressure

Airbagsystem


bybeingpushedintoyouastheairbagin-
flates.
—Neverplaceorattachaccessoriesorother
objects(suchascupholders,telephone
brackets,orevenlarge,bulkyobjects)on
thedoors,overorneartheareamarked
“AIRBAG”ontheseatbackrests.
—Suchobjectsandaccessoriescanbecome
dangerousprojectilesandcauseinjury
whenthesupplementalsideairbagde-
ploys.
—Nevercarryanyobjectsorpetsinthede-
ploymentspacebetweenthemandtheair-
bagsor allowchildrenorotherpassengers
totravelinthisposition.
—Alwaysusethebuilt-incoathooks*onlyfor
lightweightclothing.Neverleaveanyheavy
orsharp-edgedobjectsinthepocketsthat
mayinterferewithsideairbagdeployment
andcan causepersonalinjuryinanaccident.
—Alwayspreventthesideairbagsfrombeing
damagedbyheavyobjectsknockingagainst
orhittingthesidesoftheseatbacks.
— Theairbagsystemcanonlybetriggered
once.Iftheairbaghasbeentriggered,the
systemmustbereplacedbyanauthorized
Audidealership.
—Damage (cracks,deepscratchesetc.)tothe
originalseatcoversortotheseaminthe
areaofthesideairbagmodulemustalways
berepairedimmediatelybyanauthorized
Audidealer.
—Ifchildrenareseatedimproperly,theirrisk
ofinjuryincreasesinthecase ofanaccident
=page285,Childsafety.
—Neverattempttomodifyanycomponentsof
theairbagsysteminanyway.
—Inasidecollision,sideairbagswillnotfunc-
tionproperlyifsensorscannotcorrectly
measureincreasingairpressureinsidethe
doorswhenairescapesthroughlarger,un-
closedopeningsinthedoorpanel.
—Neverdrivewithinteriordoortrimpanels
removed.
—Neverdrivewhenpartshavebeenremoved
fromtheinsidedoorpanelandtheopen-



282
ingstheyleavehave notbeenproperly
closed.
—Neverdrivewhenloudspeakersinthe
doorshavebeenremovedunlessthe
speakerholeshavebeenproperlyclosed.
—Alwaysmakecertainthatopeningsare
coveredorfilledifadditionalspeakersor
otherequipmentisinstalledintheinside
doorpanels.
—Alwayshaveworkonthedoorsdonebyan
authorizedAudidealerorqualifiedwork-
shop.

Sidecurtainairbags
pyreeteelmeee]ilarleh
Theside curtainairbagscanprovidesupplemen-
talprotectiontoproperlyrestrainedoccupants.

B8W-0056.

Fig.235Sidecurtainairbags,driver'sside:location
Thesidecurtainairbagsarelocatedonbothsides
oftheinteriorabovethefrontandrearsidewin-
dows>fig.235.
Thesidecurtainairbagscontainfeaturesthat
provideejectionmitigationtohelppreventvehi-
cleoccupantsorparts oftheirbodiesfrombeing
completelyorpartiallyejectedfromthevehicle
interiorincertainsideimpactsandvehicleroll-
overs.
Thesidecurtainairbagsystemsupplementsthe
safetybeltsandcanhelptoreducetheriskofin-
juryforoccupants'headsanduppertorsoina
sidecollision.Thesidecurtainairbaginflatesin
sideimpactsandonlywhenthevehicleaccelera-
tionregisteredby thecontrolunitishighenough.
Ifthisrateisbelowthereferencevalueprogram-
medintothecontrolunit,thesidecurtainairbag>

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

CheckingandFilling

engine.Ifthishappens,onlyusewaterand
restorethecorrectmixtureratiowiththe
specifiedcoolantadditiveassoonaspossi-
ble.
—Onlyrefillwithnewcoolant.
—Radiatorsealantmustnot bemixedwith
thecoolant.
Addingcoolant

©=FeRAZ-0540


MIN

Fig.258Enginecompartment-coolantexpansiontank
(diagram):@coverwithreleasebutton;2)markings
Observethesafetyprecautions>page309,
Workingintheenginecompartment.
Checkingtheenginecoolantlevel
>Parkthevehicleonalevelsurface.
>Switchtheignitionoff.
>Readthecoolantlevelonthecoolantexpansion
tank>page311,fig.256.Thecoolantlevel
mustbebetweenthemarkings@)>fig.258
whentheengineiscold.Whentheengineis
warmitcanbeslightlyabovetheupper mark-
ing.
Addingcoolant
>Allowtheenginetocool.
> Placealarge,thicktowelonthecoolantexpan-
siontankcover.
>Pushthereleasebutton(@)9fig.258onthe
capandcarefullyturnittotheleftuntilyou
feelresistance>/\.
>Pushthereleasebuttonagainandremovethe
capcompletely.
>Makesurethatthefluidlevelremainsstable.
Add morecoolantifnecessary.
>
Turn thecaptotherighttotightenituntilyou
feelresistanceasecondtime.
316
Coolantlossusuallyindicatesthatthereisaleak.
Immediatelydriveyourvehicletoanauthorized
AudidealerorauthorizedAudiServiceFacility
andhavethecoolingsysteminspected.Ifthe
coolingsystemisnotleaking,coolantlosscanre-
sultfromthecoolantboilingdueoverheating
andthenbeingforcedoutofthecoolingsystem.

ZA\WARNING
— Theenginecompartmentinanyvehiclecan
beadangerousarea.Stoptheengineandal-
lowitto coolbeforeworkingintheengine
compartment.Alwaysfollowtheinforma-
tionfoundin>page309,Workinginthe
enginecompartment.
—Neveropenthehoodifyoucan seeorhear
steamorcoolantescapingfromtheengine
compartment.Thisincreasestheriskof
burns.Thecoolingsystemisunderpressure.
Whenyounolongerseeorhearsteamor
coolantescaping,youmayopentheengine
compartmentwithcaution.
—Whenworkingintheenginecompartment,
rememberthattheradiatorfancanswitch
oneveniftheignitionisswitchedoff,which
increasestheriskofinjury.
—Coolantadditiveandcoolantcan bedanger-
oustoyourhealth.Forthisreason, storethe
coolantintheoriginalcontainerandaway
fromchildren.Thereisariskofpoisoning.

@)Note
Donotaddcoolantiftheexpansiontankis
empty.Theremaybe airinthecoolingsys-
tem,whichincreasestheriskofenginedam-
age.Ifthisisthecase,donotcontinuedriv-
ing.SeeanauthorizedAudidealerorauthor-
izedAudiServiceFacilityforassistance.

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
issuitablefordrivingonmudand
snow./A\indicatesawintertire.
Compositionofthetirecord
andmaterials
Thenumberofpliesindicatesthe
numberofrubberizedfabriclay-
ersinthetire.Ingeneral:the
morelayers,themoreweighta
tirecancarry.Tiremanufacturers
324
mustalsospecifythematerials
usedinthetire.Theseinclude
steel,nylon,polyesterandother
materials.
@)Maximumpermittedload
Thisnumber indicatesthemaxi-
mumloadinkilogramsand
poundsthatthetirecancarry.
@Uniformtirequalitygrade
standardsfortreadwear,
tractionandtemperature
resistance
Treadwear,tractionand tempera-
tureranges>page339.
@Runningdirection
Thearrowsindicatetherunning
directionofunidirectionaltires.
Youmustalwaysfollowthespeci-
fiedrunningdirection
>page354.
Maximumpermitted
inflationpressure
Thisnumber indicatesthemaxi-
mumpressuretowhichatirecan
beinflatedundernormaloperat-
ingconditions.

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.