2019 AUDI A4 ECU

Wheels

Wheels Wheels
andTires
Generalinformation
>Checkyourtiresregularlyfor
damage,suchaspunctures,
cuts,cracks,andbulges.Remove
foreignobjectsfromthetire
tread.
>Ifdrivingovercurbsorsimilar
obstacles,driveslowlyandap-
proachthecurbatanangle.
>Havefaultytiresorrimsre-
placedimmediately.
>Protectyourtiresfromoil,
grease,andfuel.
>Marktiresbeforeremoving
themsothatthesamerunning
directioncanbemaintainedif
theyarereinstalled.
>Laytiresflatwhenstoringand
storetheminacool,drylocation
withaslittleexposuretolightas
possible.

AWARNING
—Neverdrivefasterthanthe
maximumpermittedspeedfor
yourtires.Thiscouldcausethe
tirestoheatuptoomuch.This
increasestheriskofanacci-
dentbecauseitcancausethe
tiretoburst.

322


—Alwaysadaptyourdrivingto
theroadandtrafficcondi-
tions.Drivecarefullyandre-
duceyourspeedonicyorslip-
peryroads.Evenwintertires
canlosetractiononblackice.

()Note
—Pleasenotethatsummerand
wintertiresaredesignedfor
theconditionsthataretypical
inthoseseasons.Audirecom-
mendsusingwintertiresdur-
ingthe wintermonths.Low
temperaturessignificantlyde-
creasetheelasticityofsumm-
ertires,whichaffectstraction
andbrakingability.Ifsummer
tiresareusedinverycoldtem-
peratures,crackscanformon
thetreadbars,resultingin
permanenttiredamagethat
cancauselouddrivingnoise
andunbalancedtires.
—Burnished,polishedor
chromedrimsmustnotbe
usedinwinterdrivingcondi-
tions.Thesurfaceoftherims
doesnothavesufficientcorro-
sionprotectionforthisand
couldbepermanentlydam-
agedbyroadsaltorsimilar
substances.

Emergencyassistance

Emergencyassistance
Generalinformation
>Parkthevehicleasfaraspossiblefrommoving
trafficinthe eventofabreakdown.Intheevent
ofaflattire,parkthevehicleonalevelsurface.
Ifyouareonasteephill,beespeciallycareful.
>Set theparkingbrake.
>Switchtheemergencyflasherson.
>Havethepassengersexitthevehicle.They
shouldmovetoasafeplace,forexamplebe-
hindaguardrail.

Z\WARNING
Follow thesteps givenabove.Thisisforyour
protectionandtheforthesafetyofotherson
theroad.


Equipment
Vehicletoolkit,tiremobilitykit,and
vehiclejack
Appliesto:vehicleswiththevehicletoolkit,tiremobilitykit,
andvehiclejack
\

SMTOTAL
Fig.266Luggagecompartment:cargofloorcover
Thevehicletoolkit,vehiclejack,tiremobilitykit
andcompressorarestoredintheluggagecom-
partmentunderthecargofloorcover.
>Appliesto:sedan:Toopenthefrontcompart-
ment,liftthecargofloorcoverbythestrap(@).
>Appliesto:allroad:Toopenthefrontcompart-
ment,pullthecargofloorcoverbytheplastic
handle@)slightlytowardtherear.Lift thecar-
gofloorcoveroverthefrontcompartment.
>Toopentherearcompartment,liftthecargo
floorcoverbytheplastichandle@).
348
>Appliesto:sedan:Hooktheplastichandle(2)
intotheluggagecompartmentseal.
>Toremovethecargofloorcovercompletely,
pullittowardtherearattheplastichandle@).
>
Appliesto:vehicleswithsparetire:Turn the
handlecounter-clockwiseandremovethespare
tire.
>Appliesto:sedan:Unhookthecargofloorcover
again
beforeclosingtheluggagecompartment
lid.
Dependingonvehicleequipment,thevehicletool
kit,tiremobilitykit,andcompressormaybelo-
catedunderanothercoverthatissecuredwitha
handwheel.
Appliesto:vehicleswithvehiclejackinthestor-
agebag:Thebagwiththevehiclejackissecured
tothetie-downsintheluggagecompartment
andmustbesecuredtothetie-downsagainafter
usingit.

ZXWARNING
Appliesto:vehicleswithvehiclejackinthestoragebag
Avehiclejackthatisunsecured,incorrectlyse-
cured, ornotsecuredintheluggagecompart-
mentmayslideoutofplacewhenbraking,
turning, orinanaccident,whichincreasesthe
riskofinjuriestovehiclepassengers.Tore-
ducetheriskofanaccident,nevertransport
thevehiclejackwithoutsecuringit.

ZA\WARNING
Improperuseofthevehiclejackcan causese-
riouspersonalinjuries.
—Neverusethescrewdriverhexheadtotight-
enwheelbolts,sincetheboltscannotattain
thenecessarytighteningtorqueifyouuse
thehexhead,potentiallycausinganacci-
dent.
—Thefactory-suppliedjackisintendedonly
foryourvehiclemodel.Undernocircum-
stancesshoulditbeusedtoliftheavyvehi-
clesorotherloads;youriskinjuringyour-
self.
—Neverstarttheenginewhenthevehicleis
raised,whichcouldcauseanaccident.
—Supportthevehiclesecurelywithappropri-
atestandsifworkistobeperformed

Emergencyassistance

>Slidetheplasticclipfromthevehicletoolkit
ontothe capuntilitengages>fig.270.
>Removethecapwiththeplasticclip.
Looseningthewheelbolts
©.
=
x©.a


Fig.271Wheel:looseningthewheelbolt
>Slidethewheelwrenchfromthevehicletoolkit
all
thewayontothewheelbolt.
>Turn thewheelboltapproximatelyoneturnto
theleft-arrow-.Toachievetherequiredtorque,
holdtheendofthewheelwrench.Ifthewheel
boltwillnotloosen,presscarefullyonthe
wheelwrenchwithyourfoot.Holdontotheve-
hiclesecurelywhiledoingthisandmakesure
yourfootingisstable.

Z\WARNING
To reducetheriskofanaccident,onlyloosen
thewheelboltsgentlyoneturnbeforeraising
thevehiclewiththevehiclejack*.
Raisingthevehicle


B8W-0076


Fig.272Sillpanels:markings
352


Fig.273Sill:positioningthevehiclejack
>Placethevehiclejack*fromthevehicletoolkit
onafirmsurface.Useaflat,stablesupportif
necessary.Onaslipperysurfacesuchastile,
youshoulduseanon-slippadsuchasarubber
mat>/\.
>Findthemarkingonthesillthatisclosestto
thetirethatwillbechanged>fig.272.Behind
themarking,thereisaliftingpointontheside
sillforthevehiclejack*.
>Turn thehandwheeltoraisethevehiclejack*
undertheliftingpointonthesidesilluntilthe
bracketonthejack@completelycoversthe
notchonthevehicle.
>Alignthevehiclejack*sothebracket@covers
thenotchandthebase(2)isflatontheground.
Thebase@)mustbedirectlyunderthemount-
ingpoint@.
>Mountthecrankonthevehiclejack*:insertthe
crankintotheopeningonthehandwheel.Turn
thecranktotheleftorrighttosecureit.
>Continueraisingthevehiclejack*withthecrank
untilthewheelliftsoffthegroundslightly.

ZAWARNING
—Makesurethevehiclejack*isstable.There
isariskofinjurywhenthegroundisslippery
orsoft,becausethevehiclejack*couldslide
orsink.
—Onlyraiseyourvehiclewiththevehiclejack*
providedbythefactory.Ifyouuseavehicle
jackdesignedforanothervehicle,yourvehi-
clecouldslipandcauseinjury.
—Positionthevehiclejack*onlyatthedesig-
natedmountingpointsonthesidesilland
alignthejack.Otherwise,thevehiclejack*
couldslipandcauseaninjuryifitdoesnot
havesufficientholdonthevehicle.>

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Emergencyassistance


—Toreducetheriskofanaccident,neverstart
theenginewhenthevehicleisraised.
—Toreducetheriskofinjury,supportthevehi-
clesecurelywithsuitablestandsifworkisto
beperformedunderneaththevehicle.

ZAWARNING
Tohelppreventinjurytoyourselfandyour
passengers:
—Donotraisethevehicleuntilyouaresure
thejack*issecurelyengaged.
—Passengersmustnotremaininthevehicle
whenitisjackedup.
—Makesurethatpassengerswaitinasafe
place
awayfromthevehicleandwellaway
fromtheroadandtraffic.
—Makesurejackpositioniscorrect,adjustas
necessaryandthencontinuetoraisethe
jack*.
—Ifworkhastobedoneunderthevehicle,en-
surethatitissafelysupportedonsuitable
stands-riskofinjury!
—Neverstarttheenginewhenthevehicleis
onthejack*-riskofaccident!




@)Note
Donotliftthevehiclebythesill.Positionthe
vehiclejack*onlyatthedesignatedmounting
pointsonthesidesill.Otherwise,yourvehicle
couldbedamaged.
Removingandinstallingawheel
@RgTt
“ooO

m™
Fig.274Wheel:internalhexsocket to turnthewheelbolts

5is+
~%0a
Fig.275Wheel:alignmentpininthetophole
Removingawheel
>Removethetopwheelboltcompletelyusing
thehexsocketinthescrewdriverhandlefrom
thevehicletoolkit>fig.274andplaceitona
cleansurface.
>Theninstallthealignmentpinfromthevehicle
toolkitintheemptywheelboltholebyhand
>fig.275.
>Removetherestofthewheelbolts.
>Removethewheel>().Thealignmentpinre-
mainsintheholewhiledoingthis.
Installingawheel
Readthedirectionsonpage354wheninstal-
lingunidirectionaltires.
>Slidethewheelonoverthealignmentpin>@.
>Installthewheelboltsandtightenthemgently
usingthehexsocket.
>Removethealignmentpinandtightenthere-
mainingwheelbolt.
>Carefullylowerthevehicleusingthevehicle
jack*.
»
Tightenthewheelboltsinadiagonalpattern
usingthewheelwrench.
Thewheelboltsmustbecleanandloosenand
tighteneasily.Checkthecontactsurfacesforthe
wheelandhub.Contaminantsonthesesurfaces
mustberemovedbeforeinstallingthewheel.

Z\WARNING
Neverusethehexsocketinthescrewdriver
handleorthehexsocketwrenchwiththe
ratchettoloosenortightenthewheelbolts.
This increasestheriskofanaccident,because
youwillnot beabletoachievethecorrect
tighteningspecification.>


353

Emergencyassistance

@)Note
Whenremovingorinstallingthewheel,the
rim
couldhitthebrakerotoranddamagethe
rotor.Workcarefullyandhaveasecondper-
sonhelpyou.
G)Tips
—Whenmountingtireswithunidirectional
treaddesignmakesurethetreadpatternis
pointedtherightway>page354.
— Thewheelboltsshould becleanandeasyto
turn.Checkfordirtandcorrosiononthe
matingsurfacesofboththewheelandthe
hub.Removealldirtfromthesesurfacesbe-
foreremountingthewheel.
Unidirectionaltires
Aunidirectionaltireprofileisidentifiedbyarrows
onthetiresidewallthatpointintherunningdi-
rection.Youmustalways maintain thespecified
runningdirection.Thisisnecessarytoensurethe
tire'soptimumperformanceinregardtoadhe-
sion,runningnoise,andfriction,andtoreduce
theriskofhydroplaning.
Tobenefitfullyfromtheadvantagesoftheuni-
directionaltiredesign,youshouldreplacefaulty
tiresassoonaspossibleandrestorethecorrect
runningdirectiononallofthetires.
>Reinstallthecapsonthewheelboltsifnecessa-
ry.
>Storethevehicletoolkitinitsdesignated
place.
>Iftheremovedwheeldoesnotfitinthespare
wheel well,storeitsecurelyintheluggage
compartment>page64.
>Checkthetirepressureontheinstalledwheel
assoonaspossible.
>CorrectthetirepressureandstoreitintheIn-
fotainmentsystem>page341.
>Thewheelbolttighteningspecificationmustbe
90ftlbs(120Nm).Haveitcheckeditassoon
as possiblewithatorquewrench.Drivecareful-
lyuntilthen.
354
>Havethefaultywheelreplacedasquicklyas
possible.
@)Tips
—Ifyounoticethatthewheelboltsarecor-
rodedanddifficulttoturnwhilechanginga
tire,they should bereplacedbeforeyou
checkthetighteningtorque.
—Driveatreducedspeeduntilyouhave the
tighteningtorqueschecked.
Notesonwheelchanging
Pleasereadtheinformation>page329ifyou
aregoingtouseareplacementtirewhichisdif-
ferentfromthetiresonyourvehicle.
Afteryouchangeatire:
—Checkthetirepressureonthereplacement
tireimmediatelyafterinstallation.
—Havethewheelbolttighteningtorque
checkedwithatorquewrenchassoonaspos-
siblebyyourauthorizedAudidealerorquali-
fiedworkshop.
— Withsteelandalloywheelrims,thewheel
boltsarecorrectlytightenedat atorqueof
90ftlbs(120Nm).
—
Ifyounoticethatthewheelboltsarecorroded
anddifficulttoturnwhilechangingatire,
theyshouldbereplacedbeforeyoucheckthe
tighteningtorque.
—Replacetheflattirewithanewone andhave
itinstalledonyourvehicleassoonaspossi-
ble.Remountthewheelcover.
Untilthen,drivewithextracareandatreduced
speeds.

ZAWARNING
—Ifyouaregoingtoequipyourvehiclewith
tiresorrimswhichdifferfromthosewhich
werefactoryinstalled,thenbesuretoread
theinformation>page329.
—Alwaysmakesurethedamagedwheelor
evenaflattireandthejack*andtoolkitare
properlysecuredintheluggagecompart-
mentandarenotlooseinthepassenger
compartment.>

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Emergencyassistance


—Inanaccidentorsuddenmaneuverthey
couldflyforward,injuringanyoneintheve-
hicle.
—Alwaysstoredamagedwheel,jack*and
toolssecurelyintheluggagecompartment.
Otherwise,inanaccidentorsuddenmaneu-
vertheycouldflyforward,causinginjuryto
passengersinthevehicle.

Space-savingsparetire
Appliesto:vehicleswith space-saving sparetire(compact
sparetire)
Thesparetireisintendedforshort-term useonly.
Havethedamagedtirecheckedandreplacedif
necessaryby anauthorizedAudidealerorauthor-
izedAudiServiceFacilityassoonaspossible.
Thereare somerestrictionsontheuseofthe
compactsparetire.Thecompactsparetirehas
beendesignedspecificallyforyourtypeofvehi-
cle.Donotreplaceitwiththesparetirefroman-
othertypeofvehicle.
Thecompactsparetireislocatedintheluggage
compartmentunderthecargofloorcover
=>page348.
Thetirepressuremustbe61PSI(420kPA).
Snowchains
For technical reasons,the useofsnowchainson
thecompactsparetireisnotpermitted.
Ifyouhavetodrivewithsnowchainsandafront
tirefails,mountthesparetireinplaceofarear
tire.Installthesnowchainsonthereartirethat
youremoved,andinstallthatinplace ofthe
fronttirethatfailed.

AWARNING
—Afterinstalling asparetire,thetirepressure
mustbecheckedassoonaspossible.
—Donotdrivefasterthan50mph(80km/h)
withacompactsparetire.Drivingfaster
thanthatincreasestheriskofanaccident.
—Toreducetheriskofanaccident,avoidfull-
throttleacceleration,heavybraking,and
fastcorneringwiththecompactsparetire.


—Toreducetheriskofanaccident,neverdrive
withmorethanonecompactsparetire.
—Normal summerorwintertiresmustnotbe
mountedonthecompactsparewheelrim.

Collapsiblesparetire
Appliesto:vehicleswithcollapsiblesparetire
Thecollapsiblesparetireisintendedforshort-
termuseonly.Havethedamagedtirechecked
andreplacedifnecessarybyanauthorizedAudi
dealerorauthorizedAudiServiceFacilityassoon
aspossible.
Thereare somerestrictionsontheuseofthecol-
lapsiblesparetire.Thecollapsiblesparetirehas
beendesignedspecificallyforyourtypeofvehi-
cle.Donotreplaceitwiththecollapsiblespare
tirefromanothertypeofvehicle.
Thecollapsiblesparetireislocatedinthelug-
gagecompartmentunderthecargofloorcover.
Requirement:thevehicletoolkit>page348and
thecompressormustbelaidout.
Removing
>Removethecargofloorcover>page348,
fig.266.
>Turn thehandwheelcounter-clockwiseandre-
moveit.
>Removethecollapsiblesparetire.
Youmustinflatethecollapsiblesparetirebefore-
handinordertouseit.
Inflating
>Removethevalvecapfromthecollapsible
sparetire.
>Tightenthecompressorhoseonthecollapsible
sparetirevalve.
>Connectthecompressorhosetoavehiclesock-
etandswitchiton.
>Letthecompressorrununtilthespecifiedvalue
onthetirepressurestickerisreached
>page332,fig.265>@.
>Screwthevalvecapbackontothevalve.
Returningtostorage
>Removethevalvecaptodraintheair.
355

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

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Fusesandbulbs


Afuse thathasblownwillhavemetalstripsthat
haveburnedthrough.

Fig.276Driver'ssidefootwell(left-handdrivevehicles):
footrest rontpassenger'sfootwell(right-handdrive ve-
hicles):cover®)
6a
S|
=aoO

Fig.277Driver'ssidecockpit(left-handdrive/right-hand
drivevehicles):cover©,leftsideofluggagecompartment:
cover()
Thefusesarelocatedinthefootwellunderthe
footrest(left-handdrivevehicle)(@)orbehind
thecover(right-handdrivevehicle)
fusesarelocatedonthefrontsideofthecockpit
(driver'sside)©andundertheleftcoverinthe
luggagecompartment©


>Switchtheignitionandallelectricalequipment
off.
»Checkthetablethatfollowstoseewhichfuse
belongstotheequipment.
>RemovethescrewdriverandthereversibleTorx
bitfromthevehicletoolkit>page348.
>Removethefootrestorthecorrespondingcov-
er.
>Removethecoloredplasticclipfromthefuse
panel,ifnecessary>page358,fig.278.You
candisposeoftheplasticclip.
>Removetheclipfromtherearsideofthecover
(Cc).
>Removethefuseusingtheclip.
>Replace theblownfuseonlywithafuse that
hasthesamecurrentrating.
»Reattachthefootrestorthecover.
357