2019 AUDI A4 brake

8W0012721BG
CheckingandFilling

Brakefluid
B8K-2122



Fig.259Enginecompartment:caponbrakefluidreservoir
Observethesafetyprecautions>A\inWorking
intheenginecompartmentonpage309.
Checkingthebrakefluidlevel
>Readthebrakefluidlevelonthebrakefluidres-
ervoir>page311,fig.256.Thebrakefluidlev-
elmustbebetweentheMINandMAXmarkings
>A.
Thebrakefluidlevelismonitoredautomatically.
Changingthebrakefluid
Brakefluidshouldbechangedatregularinter-
vals.Havethebrakefluidchangedby anauthor-
izedAudidealerorauthorizedAudiServiceFacili-
ty.TheauthorizedAudidealerorauthorizedAudi
ServiceFacilitywillinformyouofthereplace-
mentintervals.

ZAWARNING
—IfthebrakefluidlevelisbelowtheMIN
marking,itcanimpair thebrakingeffectand
drivingsafety,whichincreasetheriskofan
accident.Donotcontinuedriving.Seeanau-
thorizedAudidealerorauthorizedAudi
ServiceFacilityforassistance.
—Ifthebrakefluidisold,bubblesmayformin
thebrakesystemduringheavybraking.This
couldimpairbrakingperformanceanddriv-
ingsafety,whichincreasestheriskofanac-
cident.
— Thebrakefluidinyourvehiclemustmeet
thestandardVW50114andisavailableat
anauthorizedAudidealerorauthorizedAu-
diServiceFacility.Ifthisbrakefluidisnot
available,anotherhigh-gradebrakefluidof


equivalentqualitymaybeused,anditmust
meettheU.S.FederalMotorVehicleStand-
ard(FMVSS)116DOT4,Class6.
Q)Note
—IfthebrakefluidlevelisabovetheMAX
marking,brakefluidmayleakoutoverthe
edgeofthereservoirandresultindamage
tothevehicle.
—Donotallowanybrakefluidto comeinto
contactwiththevehiclepaint,becauseit
willcorrodethepaint.

Electricalsystem
Ifthe=orflindicatorlightturnson,thereisa
malfunctioninthegenerator,thebattery, orthe
vehicleelectricalsystem.
=Electricalsystem:malfunction!Safelystop
vehicle
Donotcontinuedrivingandswitchtheengineoff
=>AX.SeeanauthorizedAudidealerorauthorized
AudiServiceFacilityforassistance.
[HlElectricalsystem:malfunction!Restartnot
possible.PleasecontactService
Itwillnot bepossibletorestarttheengineonce
youturnitoff.Vehiclefunctions/drivingstability
maybelimited.DrivetoanauthorizedAudideal-
erorauthorizedAudiServiceFacilityimmediate-
ly.
z=Electricalsystem:malfunction!Pleasecon-
tactService
Switchoffallelectricalequipmentthatisnot
needed.Vehiclefunctions/drivingstabilitymay
belimited.DrivetoanauthorizedAudidealeror
authorizedAudiServiceFacilityimmediately.
z=Electricalsystem:lowbatterycharge.Bat-
tery
willbechargedwhiledriving
Thestartingabilitymaybeimpaired.
Ifthismessageturnsoffafteralittlewhile,the
vehiclebatteryhaschargedenoughwhiledriving.>
317

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

8W0012721BG
Wheels

Productionoptionsweight
meansthecombinedweightof
thoseinstalledregularproduction
optionsweighingover5lbs.
(2.3kg)inexcessofthosestand-
arditemswhichtheyreplace,not
previouslyconsideredincurb
weightoraccessoryweight,in-
cludingheavy dutybrakes,ride
levelers,roofrack,heavyduty
battery,andspecialtrim.
Radialplytire
meansapneumatictireinwhich
theplycordsthatextendtothe
beadsarelaidatsubstantially
90degreestothecenterlineof
thetread.
Recommendedinflation
pressure
see>page325,Coldtireinfla-
tionpressure.
Reinforcedtire
meansatiredesignedtooperate
athigherloadsandathigherin-
flationpressuresthanthecorre-
spondingstandardtire.Rein-
forcedtiresmaybeidentifiedas
“XL”,“xl”,“EXTRALOAD”,or“RF”
onthesidewall.
Rim
meansametalsupportforatire
oratireandtubeassemblyupon
whichthetirebeadsareseated.
Rimdiameter
meansnominaldiameterofthe
beadseat.Ifyouchangeyour
wheelsize,youwillhavetopur-
chasenewtirestomatchthenew
rimdiameter.
Rimsizedesignation
meansrimdiameterandwidth.
Rimwidth
meansnominaldistancebetween
rimflanges.
Sidewall
meansthatportionofatirebe-
tweenthetreadandbead.
Speedrating(lettercode)
meansthespeedatwhichatireis
designedtobedrivenforextend-
edperiodsoftime.Theratings
rangefrom93mph(150km/h)
to186mph(298km/h)>table
onpage323.Youmaynotfind
thisinformationonalltiresbe-
causeitisnotrequiredbylaw.
Thespeedratinglettercode,
whereapplicable,ismoldedon
thetiresidewallandindicatesthe>
327

8W0012721BG

Wheels



—Onlyusetiresthataremore—Inflationpressurethatistoolow
thansixyearsoldwhenabso-orhighcanincreasetirewear
lutelynecessaryanddriveconsiderably.
carefullywhendoingso.—Drivingquicklythroughcurves,
—Donotuserun-flattiresonrapidacceleration,andheavy
yourvehicle.Usingthemwhenbrakingincreasetirewear.
notpermittedcanleadtove-—HaveanauthorizedAudidealer
hicledamageoraccidents.orauthorizedAudiServiceFacili-
—Ifyouinstallwheelcoversontycheckthewheelalignmentif
thevehicle,makesuretheyal-thereisunusualwear.
lowenoughaircirculationto—Havethewheelsrebalancedifan
coolthebrakesystem.Iftheyimbalanceiscausingnoticeable
donot,thiscouldincreasethevibrationinthesteeringwheel.
riskofanaccident.Ifyoudonot,thetiresandother
vehiclecomponentscouldwear
Tirewearanddamagemorequickly.

Treadwearindicator
Originalequipmenttirescontain
treadwearindicatorsinthetread
pattern,whicharebarsthatare
1/16in(1.6mm)highandare
spacedevenlyaroundthetireper-
Fig.263Tireprofile:creaniweneacependiculartotherunningdirec-
tortion>fig.263.Theletters“TWI”
Tirewearortrianglesonthetiresidewall
indicatethelocationofthetread-
Checkthetiresregularlyforwear.wearindicators.
Thetireshavereachedthemini-
mumtreaddepth!)whenthey>

DObeyanyapplicableregulationsinthe
country
wherethevehicleisbeingoper-
ated.
331

Wheels

thatcanbeappliedateachofthe
vehicle’stwoaxles.
Thefactthat thereisanupper
limittoyourvehicle’sGrossVehi-
cleWeightRatingmeansthatthe
totalweightofwhateverisbeing
carriedinthevehicle (including
theweightofatrailerhitchand
thetongueweightofthe loaded
trailer)islimited.Themorepas-
sengersinthevehicle orpassen-
gerswhoareheavierthanthe
standardweightsassumedmean
thatlessweightcanbecarriedas
luggage.
TheGrossVehicleWeightRating
andtheGrossAxleWeightRating
arelistedonthesafetycompli-
ancestickeronthedriver’ssideB-
pillarrespectivelyonthefront
endofthedriver'sdoor.

Z\WARNING
Overloadingavehiclecancause
lossofvehiclecontrol,acrash
orotheraccident,seriousper-
sonalinjury,andevendeath.
—Carryingmoreweightthan
yourvehiclewasdesignedto
carrywillpreventthevehicle
fromhandlingproperlyandin-
creasetheriskofthelossof
vehiclecontrol.

336

—Thebrakesonavehiclethat
hasbeenoverloadedmaynot
beabletostopthevehicle
withinasafedistance.
—Tiresonavehiclethathas
beenoverloadedcanfailsud-
denly,includingablowoutand
suddendeflation,causingloss
ofcontrolandacrash.
—Alwaysmakesurethattheto-
talloadbeingtransported-
includingtheweightofatrail-
erhitchandthetongue
weightofaloadedtrailer-
doesnotmakethevehicle
heavierthanthevehicle’s

GrossVehicleWeightRating.
Determiningcorrectload
Thali
Usetheexamplebelowtocalcu-
latethetotalweightofthepas-
sengersandluggageorother
thingsthatyouplantotransport
sothatyoucanmakesurethat
yourvehiclewillnotbeoverload-
ed.

StepsforDeterminingCorrect
LoadLimit
1.Locatethestatement“THE
COMBINEDWEIGHTOFOCCU-
PANTSANDCARGOSHOULD>

8W0012721BG
Careandcleaning



—Toreducetheriskofcuts,protectyourself—Toreducetheriskofpaintdamage,donot
fromsharpmetalcomponentswhenwash-washthevehicleindirectsunlight.
ingtheunderbodyortheinsideofthewheel—Toreducetheriskofdamage,donotwash
housings.decorativedecals*withapressurewasher.
—Afterwashingthevehicle,thebrakingeffect—Toreducetheriskofdamagetothesurface,
maybedelayedduetomoistureonthedonotuseinsectremovingsponges,kitchen
brakerotorsoriceinthewinter.Thisin-sponges,orsimilaritems.
creasestheriskofanaccident.Thebrakes—Whenwashingmattefinishpaintedvehicle
mustbedriedwithafewcarefulbrakeappli-components:
cations.—Toreducetheriskofdamagetothesur-

face,donotusepolishingagentsorhard
@)Notewax.
—Ifyouwashthevehicleinanautomaticcar—Neveruseprotectivewax.Itcandestroy
wash,youmustfoldtheexteriormirrorsinthemattefinisheffect.
toreducetheriskofdamagetothemirrors.—Donotplaceanystickersormagnetic
Powerfoldingexteriormirrors*mustonlysignsonvehiclecomponentspaintedwith
befoldedinandoutusingthepowerfoldingmattefinishpaint.Thepaintcouldbe
function.damagedwhenthestickersormagnets
—To reducetheriskofdamagetotherimsareremoved.
andtires,comparethewidthbetweenthe
wheelsonyourvehiclewiththedistancebe-@)Forthesakeoftheenvironment
tweentheguiderailsinthecarwash.Onlywashthevehicleinfacilitiesspeciallyde-
—Toreducetheriskofdamage,comparethesignedforthatpurpose.Thiswillreduce the
heightandwidthofyourvehiclewiththeriskofdirtywatercontaminatedwithoilfrom
heightandwidthoftheinsideofthecarenteringthesewersystem.
wash.
Cleaningandcareinformation
Whencleaningandcaringforindividualvehiclearenotlisted,consultanauthorizedAudidealer
components,refertothefollowingtables.TheorauthorizedAudiServiceFacility.Alsofollow
informationcontainedthereissimplyrecommen-__theinformationfoundin>A.
dations.Forquestionsorforcomponentsthat
Exteriorcleaning






ComponentSituationSolution
Windshieldwiper|DepositsSoftclothwithglasscleaner,>page 54
blades
Headlights/DepositsSoftspongewithamildsoapsolution®
Taillights
Sensors/DepositsSensors:softclothwithasolvent-freecleaningsolution
cameralensesCameralenses:softclothwithanalcohol-freecleaningsol-
ution
Snow/iceHandbrush/solvent-freede-icingspray
WheelsRoadsaltWater
BrakedustAcid-freespecialcleaningsolution>

343

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

8W0012721BG
Emergencyassistance


underneaththevehicle;otherwise,thereisa
potentialriskforinjury.
—NeverusethejacksuppliedwithyourAudi
onanothervehicle,particularlyonaheavier
one.Thejackisonlysuitableforuseonthe
vehicleitcamewith.
@Tips
—Insomevehicles,therearcompartment
maynotopen.


—Thevehiclejackinyourvehicleismainte-
nance-free.
Tiremobilitykit
Appliesto:vehicleswithtiremobilitykit
>Readandfollowtheimportantsafetyprecau-
tions>page348.
>Set theparkingbrake.
Appliesto:vehicleswithmanualtransmission
>Shiftinto1stgear.
Appliesto:vehicleswithautomatictransmission
>Selectthe"P"selectorleverposition.
> Checkifarepairwiththetiremobilitykitispos-
sible>page349.
Usingthetiremobilitykit
Appliesto:vehicleswithtiremobilitykit

B8K-1475




Fig.267Tire:tiredamagethatcannotberepaired
Thetirerepairisonlymeantfortemporaryuse.
Changethedamagedtireassoonaspossible
>A.
Ifthetireispiercedbyanobjectsuchasanail,
donotremovetheobjectfromthetire.
Thetiremobilitykitcanbe usedattemperatures
aslowas -4°F(-20°C).
Thetiremobilitykitmustnotbeused:
—Ifthetirehascutsorpuncturesthatare larger
than0.16in(4mm)@©fig.267
—Iftherimisdamaged@)
—Ifyouhavedrivenwithverylowtirepressureor
withoutairinthetire@)
SeeanauthorizedAudidealerorauthorizedAudi
ServiceFacilityforassistanceinthesesituations.

Z\WARNING
—Pleasenotethatthetiremobilitykitcannot
beusedinallsituations,andthatitmayon-
lybeusedtemporarily.
—Thetiresealantmustnotcomeincontact
withskin,eyes,orclothing.
—Iftiresealantcomesintocontactwithyour
eyesoryourskin,thoroughlyrinsetheaf-
fectedareaimmediatelywithcleanwater.
—Donotinhalethefumes.
—Ifyouswallowanyofthetiresealant,thor-
oughlyrinseyourmouthimmediatelyand
drinkalotofwater.Donotinducevomiting.
Seekmedicalattentionimmediately.
—Changeyourclothingimmediatelyifit
comesintocontactwithtiresealant.
—Ifanallergicreactionoccurs,seekmedical
attentionimmediately.
—Keepthetiresealantawayfromchildren.
G@)Tips
—Ifsealantleaks,allowittodryinplace.You
canthenpeelitofflikeasticker.
—Notetheexpirationdateonthesealantbot-
tle.Replacethetiresealantatanauthorized
AudidealerorauthorizedAudiServiceFa-
cility.

—Radioreceptioncanbeinterruptedwhen
operatingthecompressor.
—Follow thelegalregulationsthatareappli-
cableinthecountrywhereyouareoperating
thevehicle.
349