2019 AUDI A4 service indicator

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

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

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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

CheckingandFilling

>Attheendofthechargingprocess,switchthe
chargeroffandpullthepowercableoutofthe
socket.
>Removethechargingdeviceterminalclamps.
>Closetheredcoveronthepositiveterminal.
>Closethehood>page310.

ZXWARNING
—Neverconnectthechargingcabledirectlyto
yourvehiclebattery.Onlyuse the connec-
tionsintheenginecompartment
=>page319.
—Ahighlyexplosivemixtureofgasescanform
whenchargingbatteries.Onlychargethe
batteryinwell-ventilatedareas.
—Adrainedbatterycanfreezeattempera-
turesaround329F(02C).Donotchargeor
useafrozenorthawedbattery.If iceforms,
thebatteryhousingcancrackandbattery
electrolytecanleakout,whichincreasesthe
riskofanexplosionandchemicalburns.
Contact anauthorizedAudidealerorauthor-
izedAudiServiceFacilityformoreinforma-
tion.
—Donotconnectordisconnectthecharging
cablewhilechargingbecausethisincreases
theriskofanexplosion.

@)Tips
Readallofthemanufacturer'sinstructions
forthechargerbeforechargingthebattery.
Windshieldwasher
system

B8W-0125



Fig.261Enginecompartment:washerfluidreservoircap
ThewindshieldwasherfluidreservoirScontains
thecleaningsolutionforthewindshieldandthe
320
headlightwashersystem*>page311,fig.256.
Thereservoircapacitycanbefoundin
=>page373.
Toreducetheriskoflimescaledepositsonthe
spraynozzles,usecleanwaterwithlowamounts
ofcalcium.Alwaysaddwindowcleanertothewa-
ter.Whentheoutsidetemperaturesarecold,an
anti-freezingagentshould beaddedtothewater
sothatitdoesnotfreeze.
C)Note
— Theconcentrationofanti-freezingagent
mustbeadjustedtothevehicleoperating
conditionsandtheclimate.Aconcentration
thatistoohighcanleadtovehicledamage.
—Neveraddradiatoranti-freezeorotheraddi-
tivestothewasherfluid.
—Donotuseaglasscleanerthat contains
paintsolvents,becausethiscoulddamage
thepaint.
Serviceintervaldisplay
Theserviceintervaldisplaydetectswhenyourve-
hicleisdueforservice.
Checkingserviceintervals
Youcan checktheremainingdistanceortimeun-
tilthenextoilchangeornextinspectioninthe
Infotainmentsystem.

>SelectintheInfotainmentsystem:the[MENU
button>Vehicle>leftcontrolbutton>Service
&checks>Serviceintervals.

Resettingtheindicator
AnauthorizedAudidealerorauthorizedAudi
ServiceFacilitywillresettheserviceintervaldis-
playafterperformingservice.
Ifyouhavechangedtheoilyourself,youmustre-
settheoilchangeinterval.

>SelectintheInfotainmentsystem:the|MENU
button>Vehicle>leftcontrolbutton>Service
&checks>Serviceintervals>Resetoilchange
interval.

8W0012721BG
CheckingandFilling

Ifanoilchangeorinspectionisdue,youcanac-
cessitintheInfotainmentsystem.Thedisplay
worksintwostages:
—Servicereminder:afteracertaindistanceis
driven,amessageappearsintheinstrument
clusterdisplayeverytimetheignitionisswitch-
edon.Theremainingdistanceandtimeisdis-
playedbriefly.
—Servicedue:ifyourvehiclehasreachedaserv-
iceinterval,amessageappearsbrieflyafter
switchingtheignitionon.
()Note
—Onlyresettheoilchangeindicatoriftheoil
waschanged.
—Followingtheserviceintervalsiscriticalto
maintainingtheservicelifeandvalueof
yourvehicle,especiallytheengine.Evenif
themileageonthevehicleislow,donotex-
ceed thetimeforthenextservice.
321

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

haveworndowntothetreadwear
indicators.Replacethetireswith
newones>A.
Tirerotation
Rotatingthetiresregularlyisrec-
ommendedtoensurethetires
wearevenly.Torotatethetires,
installthetiresfromtherearaxle
onthefrontaxleandviceversa.
Thiswillallowthetirestohave
approximatelythesamelengthof
servicelife.
Forunidirectionaltires,makesure
thetiresareinstalledaccordingto
therunningdirectionindicatedon
thetiresidewall>page354.
Hiddendamage
Damagetotiresandrimscanof-
tenoccurinlocationsthatarehid-
den.Unusualvibrationsintheve-
hicleorpullingtoonesidemay
indicatethatthereistiredamage.
Reduceyourspeedimmediately.
Checkthetiresfordamage.Ifno
damageisvisiblefromtheout-
side,driveslowlyandcarefullyto
thenearestauthorizedAudideal-
erorauthorizedAudiServiceFa-
cilitytohavethevehicleinspect-
ed.
332

Z\WARNING
Treadthathasworntoolowor
uneventreaddepthsonthe
tirescanreducedrivingsafety.
Thiscanincreasetheriskofan
accidentbecauseithasanega-
tiveeffectonhandling,driving
throughcurves,andbraking,
andbecauseitincreasesthe
riskofhydroplaningwhendriv-
ingthroughdeeppuddles.
SUTcwyee)
ef)




B8W-0152

Fig.264Driver'ssideB-pillar:tirepres-
surelabel


B8K-1151
SEATINGCAPACITYTOTALpyFRONTa)0NOMBREDEPLACESTOTALAVANTARRIEREa2Fr
19OFpmbs.xoou
TIRESIZE
PNEU_|DIMENSIONS
FRONT
AVANT,MaKPA,MMPSI
REAR
ARRIEREaKPA,MlPSI
‘SPARE
DESECOURSllKPA,MlPSI
COLDTIREPRESSURE
PRESSIONDESPNEUSAFROID





Fig.265Tirepressurelabel
Thecorrecttirepressurefortires
installedatthefactoryislistedon
alabel.Thelabelislocatedonthe>

8W0012721BG
Wheels

Trytostorethecorrecttirepressures
=>page341.Insomecases,youmustdrivefor
severalminutesafterstoringthepressuresuntil
theindicatorlightturnsoff.Iftheindicatorlight
doesturnofforturnsonagainafterashortperi-
odoftime,drivetoanauthorizedAudidealeror
authorizedAudiServiceFacilityimmediatelyto
have themalfunctioncorrected.

ZA\WARNING
—Ifthetirepressureindicatorappearsinthe
display,reduceyourspeedimmediatelyand
avoidanyhardsteeringorbrakingmaneu-
vers.Stopassoonaspossibleandcheckthe
tiresandtheirpressure.
—Thedriverisresponsibleformaintainingthe
correcttirepressure.Youmustcheckthe
tirepressureregularly.
—Undercertainconditions(suchasasporty
drivingstyle,winterconditions,orunpaved
roads),thetirepressuremonitoringsystem
indicatormaybedelayed.

@)Tips
—Thetirepressuremonitoringsystemcanal-
sostopworkingwhenthereisanESCmal-
function.
—Usingsnowchainsmayresultinasystem
malfunction.
—Thetirepressuremonitoringsysteminyour
Audiwascalibratedwith“AudiOriginal
Tires”>page329.Usingthesetiresisrec-
ommended.
Storingtirepressures
Appliesto:vehicleswithTirePressureMonitoringSystemin-
dicator
Ifthetirepressurechangesoratireisreplaced,
itmustbeconfirmedinthe Infotainmentsys-
tem.
>Beforestoringthetirepressures,makesurethe
tirepressuresinallfourtiresmeetthespeci-
fiedvaluesandareadaptedtotheload
=>page332.
>Switchtheignitionon.
>SelectintheInfotainmentsystem:[MENU]but-
ton>Vehicle>Service&checks>Tirepressure


monitoring>Storetirepressure>Yes,store
now.
@Tips
Donotstorethetirepressuresifsnowchains
areinstalled.
341