OVERHEAT AUDI S4 2019 User Guide

CheckingandFilling

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

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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.

CheckingandFilling

Ifthismessagedoesnotturnoff,driveimmedi-
atelytoanauthorizedAudidealerorauthorized
AudiServiceFacility.

ZA\WARNING
Whenthereisanelectricalsystemmalfunc-
tion,vehiclefunctionsmaynotworkanddriv-
ingstabilitymaybelimited,whichincreases
theriskofanaccident.Stopdrivingand
switchtheengineoff.SeeanauthorizedAudi
dealerorauthorizedAudiServiceFacilityfor
assistance.

Battery
Prlaameeeelec)
Becauseofthecomplexpowersupply,allworkon
batteriessuchasdisconnecting,replacing,etc.,
should only beperformedby anauthorizedAudi
dealerorauthorizedAudiServiceFacility>A\.
Multiplebatterieswithdifferenttechnologies
maybeinstalledinyourvehicle:
—Vehiclebattery(forexample,forstartingthe
engine,basicpowersupply)>page319,Lead
batteryor>page319,Otherbatterytypes
—Auxiliarybattery(forexample,forrecuperation
oroptionalequipment)>page319,Otherbat-
terytypes
Notrunningthevehicleforlongperiodsof
time
Thebatterywillgraduallydrainifthevehicle
doesnotrunforlongperiodsoftime.Toensure
thatthevehiclecanstillbestarted,theelectrical
equipmentwillbereducedorswitchedoff
=>page143.Someconveniencefunctions,such
asinteriorlightingorpowerseatadjustment,
maynotbeavailableundercertaincircumstan-
ces.Theseconveniencefunctionswillbeavailable
againonceyouswitchtheignitiononandstart
theengine.
Evenwhenelectricalequipmentisswitchedoff,
theequipmentcanstilldrainthebatteryifthe
vehicleisnotdrivenforlongperiodsoftime.
Deepdrainingresultsinachemicalreactionthat
destroys
theinsideofthebattery.Thebattery
318
mustbechargedeverymonthtopreventthis
=page319.Contact anauthorizedAudidealeror
authorizedAudiServiceFacilityformoreinfor-
mation.
Winteroperation
Coldweatherplaceshigherdemandsonthebat-
tery.Thisresultsinreducedstartingability.Have
thebatterycheckedbyanauthorizedAudidealer
orauthorizedAudiServiceFacilitybeforecold
weatherbegins.

Z\WARNING
—Allworkonthebatteryorelectricalsystem
inyourvehiclecanresultininjuries,chemi-
calburns,accidents,or burns.Becauseof
this,allworkmustbeperformedonlybyan
authorizedAudidealerorauthorizedAudi
ServiceFacility.
—Neverconnectthechargingcableorjump
startcabledirectlytoyourvehiclebattery.
Onlyusethe connectionsintheenginecom-
partment>page319.

ZAWARNING
CaliforniaProposition65Warning:
—Batteryposts,terminalsandrelatedacces-
soriescontainleadandleadcompounds,
chemicalsknowntotheStateofCalifornia
tocausecancerandreproductiveproblems.
Washhandsafterhandling.
()Note
—Ifthevehiclewillbe parkedforlongperiods
oftime,protectthebatteryagainstthecold
so thatitwillnot be destroyed by“freezing”
=page319,Chargingthebattery.
—Thereareelectricalcomponentsunderthe
cargofloorbehindatrimpanelthatwarm
upduringoperation.To reducetheriskof
thecomponentsoverheating, donotstore
objectssuchasblanketsunderthecargo
floor.Ifthecomponentsoverheat,theywill
switchofftemporarily.Thiswillbeindicated
byamessagethatwillbedisplayedinthe
instrumentclusteruntilthetemperaturere-
turnstonormal.

Emergencyassistance

eeemacy
Appliesto:vehicleswithtiremobilitykit


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Fig.269Diagram:tiremobilitykitconnection
Requirement:thetiremobilitykitmustbelaid
outandreadyforuse>page348.
Settingupthetiremobilitykit
>Openthecover@)onthecompressor)
>fig.268.
>Removetheconnector(4)andpressurehose(5)
withpressuregaugefromthehousing.
>Connectthecompressorpressurehose(5)to
theflange©onthetiresealantbottle@.
> Insertthesealantbottlewiththe flangeatthe
bottomintotheopening@)onthecompressor
cover.
>Removethevalvecapfromthefaultytire.
>Installthefillerhose@)onthevalve(7)
>fig.269.
>Connecttheplug@>fig.268toanoutletin
thevehicle.
>Switchtheignitionon.

D_Thecompressormaylookdifferent.However,thewayitis
operatedisgenerallythesame.
350
Inflatingatire
>Movetheswitch(8)>fig.269onthecompres-
sorintopositionI.
>Inflatethetiretobetween29psi(200kPA)
and36psi(250kPA)andreadthepressureon
thegauge.
>Ifthistirepressureisnotreached,removethe
fillerhose.Driveslowlyapproximately33feet
(10m)forwardorinreverseso thatthesealant
can bedistributedinthetire.Inflatethetire
again>A\.
Z\WARNING
—Readandfollowthemanufacturer'ssafety
precautionsonthecompressorandinthein-
structionsonthebottleofsealant.
—Ifatirepressureof29psi(200kPA)cannot
reachedafterinflatingfor6minutes,then
thetireistooseverelydamaged.Donotcon-
tinuedriving.
—Ifthetirecannotberepairedwiththetire
sealant,seeanauthorizedAudidealerorau-
thorizedAudiServiceFacilityforassistance.
(i)Tips
Donotoperatethecompressorformorethan
sixminutescontinuously,oritcanoverheat.
Oncethecompressorhascooled,youcancon-
tinuetouseit.
(eyaay)Clalare)
Appliesto:vehicleswithtiremobilitykit


>Affixthestickerthatsays"max.50mph(max.
80km/h)"thatisprovidedwiththetiremobili-
tykitwithinthedriver'sfieldofvision.
>Stopthevehicleafterdrivingforabout10mi-
nutesandcheckthetirepressure.
»Ifthetirepressureislowerthan19psi(130
kPA),thenthetireistooseverelydamaged.Do
notcontinuedriving.

Emergencyassistance

>Waitseveralhoursbeforeplacingthecollapsi-
blesparetireinthesparewheelwell.Only then
willitfolddowncompletelyso thatyoucan
storeitsecurely.
>Thenscrewthevalvecapbackontothevalve.
>Secure thecollapsiblesparetirewiththehand-
wheel.
> Foldthecargofloorcoverbackintoplace.
Snowchains
Usingsnowchainsonthecollapsiblesparetireis
notpermittedfortechnicalreasons.
Ifyouhavetodrivewithsnowchainsandafront
tirefails,mountthecollapsiblesparetireinplace
ofareartire.Installthesnowchainsontherear
tirethatyouremoved,andinstallthatinplaceof
thefronttirethatfailed.

ZA\WARNING
—Onlyusethecollapsiblesparetireinemer-
genciesanddriveverycarefully,especiallyif
it is
morethansixyearsold.
—Thecompressorandthehosecanbecome
veryhotduring operationwhichincreases
theriskofburninjuries.
—Afterinstallingacollapsiblesparetire,the
tirepressuremustbecheckedasquicklyas
possibletoreducetheriskofanaccident.
—Donotdrivefasterthan50mph(80km/h)
withthecollapsiblesparetire.Drivingfaster
thanthatincreasestheriskofanaccident.
—Avoidfull-throttleacceleration,heavybrak-
ing,andfastcorneringwiththecollapsible
sparetire,becausethisincreasestheriskof
anaccident.
—Neverdriveusingmorethanonecollapsible
sparetire,becausethisincreasestheriskof
anaccident.
—Normal tiresorwintertiresmustnot be
mountedonthecollapsiblesparetirerim.

®Note
Thecompressormustbe switchedoffafter12
minutesatthemosttoreducetheriskof
overheating.Letthecompressorcooldown
forseveralminutesbeforeusingitagain.
356