brake AUDI Q5 2019 Workshop Manual

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IntelligentTechnology

Brakingeffect
Theresponsetimefromthebrakesdependson
theweatherandenvironmentalconditions.To
ensuretheoptimumbrakingeffect,thebrake
systemiscleanedatregularintervals.Thisis
donebyapplyingthebrakepadstothebrakero-
torsforashortperiodoftimewhendrivingat
highspeedswhenthewindshieldwipersare
switchedon.
Ifthebrakesystembecomesdamp,forexample
afterdrivinginheavyrain,thebrakingeffectmay
bedelayed.Otherfactorsthatcouldtemporarily
increasetheresponsetimeofthebrakesinclude:
—Wetconditions
—Lowtemperatures,ice,andsnow
—Roadscoveredinsalt
—Dirtybrakepads
Corrosion
Corrosionmayformonthebrakerotorsifthereis
no heavybraking,ifthevehicleisnotdrivenfor
longperiodsoftime,orifthevehicleisnotdriv-
enfrequentlyorforlongdistances.Inthiscase,
brakingheavilyseveraltimeswhiledrivingat
highspeedscancleanthebrakerotors>A\.
Brakepads
Newbrakepadsdonotachievetheirfullbraking
effectduringthefirst250miles(400km).They
mustbe“brokenin”first.However,youcancom-
pensatefortheslightlyreducedbrakingforceby
pressingfirmlyonthebrakepedal.Avoidheavy
brakingduringthebreak-inperiod.
Brakepadweardependslargelyonthewaythe
vehicleisdrivenandonoperatingconditions.
Brakepadwearincreaseswhendrivingfrequently
inthecityorshortdistancesorwhenusingavery
sportydrivingstyle.

—Duetotheriskofinjury,onlyhaveanau-
thorizedAudidealerorauthorizedAudi
ServiceFacilityworkonthebrakesystem.
Incorrectrepairscouldimpairthefunction.
—Neverletthevehiclerollwhiletheengineis
stoppedbecausethisincreasestheriskofan
accident.
— Depending onvehicleequipment,thebrake
pedal
maymovedownwardautomatically
duringautonomousbrakingmaneuvers.To
reducetheriskofinjury,donotplaceyour


ZA\WARNING
—Onlyapplythebrakesforthepurposeof
cleaningthebrakesystemwhenroadand
trafficconditionspermit.Youmustnoten-
dangerotherroadusersandincreasethe
riskofanaccident.


footunderthebrakepedal.

C)Note
—Neverletthebrakes“rub”bypressingthe
pedallightlywhenbrakingisnotactually
necessary. Thiscancausethebrakestoover-
heatandincreasesbrakingdistanceand
causeswear.
—Beforedrivingonlongstretcheswithsteep
hills,reduce thevehiclespeedandshifttoa
lowergeartouse theenginebrakingeffect.
Thisreducestheloadonthebrakes.Ifyou
needtobrakeadditionally,brakeinintervals
andnotcontinuously.
(i)Tips
—Ifyouretrofityourvehiclewithafrontspoil-
er,wheelcoversorsimilaritems,makesure
thattheairflowtothebrakesisnotob-
structed.Otherwisethebrakesystemcan
overheat.
—Alsorefertotheinformationaboutbrake
fluid>page319.
Electromechanical
steering,Dynamic
steering
Theelectromechanicalsteeringsupportsthe
driver'ssteeringmovements.
Powersteeringadaptselectronicallybasedon
thevehiclespeed.
Indicatorlightsandmessages
aSteering:malfunction!Pleasestopvehicle
147
>

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IntelligentTechnology

@)Tips
—Ifyoudriveshortdistancesfrequently,the
vehiclebatterymaynotchargeenough
whiledriving.Asaresult,conveniencefunc-
tionsforelectricalequipmentmaybetem-
porarilyunavailable.
—Thevehiclebatterywillgraduallydrainif
the
vehicleisnotdrivenforlongperiodsof
time,orifelectricalequipmentisused
whentheengineisnotrunning.Toensure
thatthevehiclecanstillbestarted,the
electricalequipmentwillbelimitedor
switchedoff.
Noticeaboutdata
recordedbytheEvent
DataRecorderand
vehiclecontrolmodules
EventDataRecorder
Thisvehicleisequippedwithan EventDataRe-
corder(EDR).ThemainpurposeofanEDRisto
record,incertaincrashornearcrash-likesitua-
tions,suchasanairbagdeploymentorhittinga
roadobstacle,data thatwillassistinunderstand-
inghowavehicle'ssystemsperformed.TheEDR
isdesignedto recorddatarelatedtovehicledy-
namics andsafetysystemsforashortperiodof
time,typically30secondsorless.TheEDRinthis
vehicleisdesignedto recordsuchdataas:
—Howvarioussystemsinyourvehiclewereoper-
ating;
—Whetherornotthedriverandpassengersafety
beltswerebuckled/fastened;
—Howfar(ifatall)thedriverwasdepressingthe
acceleratorand/orbrakepedal;and,
—Howfastthevehiclewastraveling.
Thesedatacanhelpprovideabetterunderstand-
ingofthecircumstancesinwhichcrashesandin-
juriesoccur.NOTE:EDRdataarerecordedby your
vehicleonlyifanon-trivialcrashsituationoccurs;
nodataarerecordedbytheEDRundernormal
drivingconditionsandnopersonaldata(e.g.,
name,gender,age,andcrashlocation)arere-
corded.However,otherparties,suchaslawen-
forcement,couldcombinetheEDRdata withthe
typeofpersonallyidentifyingdataroutinelyac-
quiredduringacrashinvestigation.
Toreaddata recordedbyanEDR,specialequip-
mentisrequired,andaccesstothevehicleorthe
EDRisneeded.Inadditiontothevehiclemanu-
facturer,otherparties,suchaslawenforcement,
thathavethespecialequipment,canreadthein-
formationiftheyhaveaccesstothevehicleorthe
EDR.
Somestatelawsrestricttheretrievalordown-
loadingofdatastoredbyEDRsinstalledinavehi-
clefortheexpresspurposeofretrievingdataaf-
teranaccidentorcrasheventwithouttheown-
er'sconsent.
AudiwillnotaccesstheEDRand/orsimilardata
orgiveittoothers-
—unlessthevehicleowner(orlesseeifthevehi-
clehasbeenleased) agrees;or
—upontheofficialrequestbythepolice;or
—upontheorderofacourtoflaworagovern-
mentagency;or
—forthedefenseofalawsuitthroughthejudicial
discoveryprocess.
—Audimayalsousethedataforresearchabout
vehicleoperationandsafetyperformanceor
providethedatatoathirdpartyforresearch
purposeswithoutidentifyingthespecificvehi-
cleorinformationabouttheidentityofitsown-
erorlesseeandonlyaftertherecordedvehicle
datahasbeenaccessed.
Vehiclecontrolmodules
Yourvehicleisalsoequippedwithanumberof
electroniccontrolmodulesforvariousvehicle
systems,suchasenginemanagement,emission
control,airbags,andsafetybelts.
Theseelectroniccontrolmodulesrecorddata
duringnormalvehicleoperationthatmaybe
neededbytrainedtechniciansfordiagnosticand
repairpurposes.Therecordingcapabilityofthese
modulesislimitedtodata(nosoundisrecorded).
Onlyasmallamountofdataisactuallyrecorded
overaverylimitedperiodoftime,orstoredwhen
asystemfaultisdetectedbyacontrolmodule.
Someofthedatastoredmayrelatetovehicle
speed,direction,orbraking,aswellasrestraint
149
>

Drivingsafety


—Neverattempttoadjustheadrestraintwhile
driving.Ifyouhavedrivenoffandmustad-
justthedriverheadrestforanyreason,first
stopthevehiclesafelybeforeattemptingto
adjusttheheadrestraint.
—Childrenmustalways beproperlyrestrained
inachildrestraintthatisappropriatefor
theirageandsize>page288.
Examplesofimproperseatingpositions
Theoccupantrestraintsystemcanonlyreduce
theriskofinjuryifvehicleoccupantsareproperly
seated.


Improperseatingpositionscancauseseriousin-
juryordeath.Safetybeltscanonlyworkwhen
theyareproperlypositionedonthebody.Im-
properseatingpositionsreducetheeffectiveness
of safety
beltsandwillevenincreasetheriskof
injuryanddeathbymovingthesafetybelttocrit-
icalareasofthebody.Improperseatingpositions
alsoincreasetheriskofseriousinjuryanddeath
whenanairbagdeploysandstrikesanoccupant
whoisnotintheproperseatingposition.Adriver
isresponsibleforthesafetyofallvehicleoccu-
pantsandespeciallyfor children.Therefore:
>Neverallowanyonetoassumeanincorrect
seatingpositionwhenthevehicleisbeingused
>.
Thefollowingbulletinslistonlysomesamplepo-
sitionsthatwillincreasetheriskofseriousinjury
anddeath.Ourhopeisthattheseexampleswill
makeyoumoreawareofseatingpositionsthat
aredangerous.
Therefore,wheneverthevehicleismoving:
—neverstandupinthevehicle
—neverstandontheseats
—neverkneelontheseats
—neverridewiththeseatbackreclined
—neverliedownontheseats
—neverleanupagainsttheinstrumentpanel
—neversitontheedgeoftheseat
—neversitsideways
—neverleanoutthewindow
—neverputyourfeetout thewindow
256
—neverputyourfeetontheinstrumentpanel
—neverrestyourfeetontheseatcushionorback
oftheseat
—neverrideinthefootwell
—neverrideinthecargoarea

ZA\WARNING
Improperseatingpositionsincreasetherisk
ofseriouspersonalinjuryanddeathwhenever
avehicleisbeingused.
—Alwaysmakesurethatallvehicleoccupants
stayinaproperseatingpositionandare
properlyrestrainedwhenever thevehicleis
beingused.

Pedalarea
The pedalsmustalwaysbefree tomoveand
mustneverbeinterferedwithby afloormator
anyotherobject.
Makesurethatallpedalsmovefreelywithoutin-
terferenceandthatnothingpreventsthemfrom
returningtotheiroriginalpositions.
Onlyusefloormatsthatleavethepedalareafree
andcan besecuredwithfloormatfasteners.
If abrakecircuitfails,increasedbrakepedaltrav-
elisrequiredtobringthevehicletoafullstop.

ZAWARNING
Pedalsthatcannotmovefreelycancauseloss
ofvehiclecontrolandincreasetheriskofseri-
ousinjury.
—Neverplaceanyobjectsinthedriver'sfoot-
well.Anobjectcouldgetintothepedalarea
andinterferewithpedalfunction.Incaseof
suddenbrakingoranaccident,youwould
notbeabletobrakeoraccelerate!
—Alwaysmakesurethatnothingcanfallor
moveintothedriver'sfootwell.

80A012721BG
Drivingsafety

1a(LeyalMelaMeal-aed(el
Alwaysusefloormatsthatcanbesecurelyat-
tached
tothefloormatfastenersanddonotin-
terferewiththefreemovementofthepedals.
>Makesurethatthefloormatsareproperlyse-
curedand cannotmoveandinterferewiththe
pedals>A\.
Useonlyfloormatsthatleavethepedalareaun-
obstructedandthatarefirmlysecuredsothat
theycannotslipoutofposition.Youcanobtain
suitablefloormatsfromyourauthorizedAudi
dealer.
FloormatfastenersareinstalledinyourAudi.
Floor
matsusedinyourvehiclemustbeattached
tothesefasteners.Properlysecuringthefloor
matswillpreventthemfromslidingintoposi-
tionsthatcouldinterferewiththepedalsorim-
pairsafeoperationofyourvehicleinotherways.

ZAWARNING
Pedalsthatcannotmovefreelycanresultina
lossofvehiclecontrolandincreasetheriskof
seriouspersonalinjury.
—Alwaysmakesurethatfloormatsareprop-
erlysecured.
—Neverplaceorinstallfloormatsorother
floorcoveringsinthevehiclethatcannotbe
properlysecuredinplacetopreventthem
fromslippingandinterferingwiththeped-
alsortheabilitytocontrolthevehicle.
—Neverplaceorinstallfloormatsorother
floorcoveringsontopofalreadyinstalled
floormats.Additionalfloormatsandother
coveringswillreducethesizeofthepedal
areaandinterferewiththepedals.
—Alwaysproperlyreinstallandsecurefloor
matsthathavebeentakenoutforcleaning.
—Alwaysmakesurethatobjectscannotfallin-
tothedriverfootwellwhilethevehicleis
moving.Objectscanbecometrappedunder
thebrake pedalandacceleratorpedalcaus-
ing a lossofvehiclecontrol.

257

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CheckingandFilling



OnBoardDiagnosticSystem(OBD)
TheOnBoardDiagnosticSystemmonitorsthe
engineandtransmissioncomponentsthatinflu-
enceemissions.
aag Ss
°
==oO
OOg
e
ONYON

Fig.255Footwellonleftsideofthevehicle:connection
portfortheOnBoardDiagnosticSystem(OBD)
OnBoardDiagnosticSystem
EnginedatacanbereadoutattheOnBoardDi-
agnosticSystemconnectionportusingaspecial
testingdevice>fig.255.
Indicatorlight
IftheSindicatorlightblinksorturnson,there
isamalfunctionthatiscausingpooremissions
qualityandthatcoulddamagethecatalyticcon-
verter.DriveslowlytoanauthorizedAudidealer
orauthorizedAudiServiceFacilitytohave the
malfunctioncorrected.
Theindicatorlightcanalsoturnonifthefuelfill-
ercapisnotclosedcorrectly>page3081).

ZA\WARNING
Incorrectuseofthe connectionportforthe
OnBoardDiagnosticSystemcancausemal-
functions,whichcanthenresultinaccidents
andseriousinjuries.
—OnlyallowanauthorizedAudidealerorau-
thorizedAudiServiceFacilitytoreadoutthe
enginedata.


))Dependingontheengineandcountry
Enginecompartment
Generalinformation
Specialcareisrequiredifyouareworkinginthe
enginecompartment
Forworkintheenginecompartment,suchas
checkingandfillingfluids,thereisariskofin-
jury,scalding,accidents,andburns.Forthis
reason,followallthewarningsandgeneral
safetyprecautionsprovidedinthefollowingin-
formation.Theenginecompartmentisadan-
gerousarea.>/\.

Z\WARNING
—Turntheengineoff.
—Switchtheignitionoff.
—Settheparkingbrake.
—Selectthe“P”(Park)selectorleverposition.
—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.

311

CheckingandFilling


—Duetotheriskofelectricshock,nevertouch
theignitioncableorothercomponentsin
theelectronichigh-voltageignitionsystem
whentheengineisrunningorisstarting.
—Ifagearisengagedwhilethevehicleissta-
tionaryandtheengineisrunning,donot
presstheacceleratorpedalinadvertently.
Pressingtheacceleratorpedalwillcausethe
vehicletomove,andthiscouldresultinan
accident.
—Ifinspectionsorrepairsmustbeperformed
whiletheengineisrunning,movingcompo-
nents(suchastheribbedbelt,generator,
andradiatorfan)poseanadditionalrisk.
—Set theparkingbrakefirstandselectthe
“P”(Park)selectorleverposition.
—Alwaysmakesurethatnopartsofthe
body,jewelry,ties,looseclothing,and
longhaircanbecaughtinmovingengine
components.Beforeanywork,alwaysre-
moveanyjewelryandties,tiebacklong
hair,andmakesureallclothingfitsclose
tothebodytotoreducetheriskofany-
thingbecomingcaughtinenginecompo-
nents.
—Payattentiontothefollowingwarnings
whenworkonthefuelsystemisrequired:
— Donotsmoke.
—Neverworknearopenflames.
—Alwayshaveaworkingfireextinguisher
nearby.
—Allworkonthebatteryorelectricalsystem
inyourvehiclecanresultininjuries,chemi-
calburns,accidents,or burns.Becauseof
this,allworkmustbeperformedonlyby an
authorizedAudidealerorauthorizedAudi
ServiceFacility.
—Limityour exposuretoexhaustandchemi-
calsto asshortatimeaspossible.

ZXWARNING
CaliforniaProposition65Warning:
—Engineexhaust,someofitsconstituents,
andcertainvehiclecomponentscontainor
emitchemicalsknowntotheStateofCali-
forniatocausecancerandbirthdefectsand
reproductiveharm.Inaddition,certainflu-

312
idscontainedinvehiclesandcertainprod-
uctsofcomponentwearcontainoremit
chemicalsknowntotheStateofCalifornia
tocausecancerandbirthdefectsorother
reproductiveharm.
—Batteryposts,terminalsandrelatedacces-
soriescontainleadandleadcompounds,
chemicalsknowntotheStateofCalifornia
tocausecancerandreproductiveharms.
Washhandsafterhandling.
C)Note
Whenfillingfluids,besurenottoadd anyflu-
idstothewrongreservoirs.Otherwisesevere
malfunctionsandenginedamagewilloccur.


@)Forthesakeoftheenvironment
Youshouldregularlycheckthegroundunder
yourvehicleinordertodetectleaksquickly.If
therearevisiblespotsfromoilorotherfluids,
bringyourvehicletoanauthorizedAudideal-
erorauthorizedAudiServiceFacilitytobe
checked.
Openingandclosingthehood
Thehoodisreleasedfrominsidethevehicle.



BFY-0081

ibe:
Fig.257Unlockedhood:lever

CheckingandFilling






wyS
BFY-0087
Fig.258Typicallocationofthereservoirandtheengineoilfilleropening
Followthesafetyprecautions>page311.
Washerfluidreservoir(S)>page323
Jumpstartpoints:(+)underacover,(-)with
hexheadscrew>page322>page362

Engineoilfilleropening(427)>page315
Engineoillabel*withVWstandard
=>page314
Coolantexpansiontank(=f)>page318
Brakefluidreservoir(O))>page319

Thecoolantexpansiontankandtheengineoil
fillingopeningmaybelocatedindifferentplaces
withintheenginecompartment,dependingon
theengineversion.
Engineoil

Iftheengineoillevelistoolow


Ifyouneedtoaddengineoil,useanoilthatis
listedonthesticker.Thestickerislocatedatthe
314
frontoftheenginecompartment>page314,
fig.258.
Iftherecommendedengineoilisnotavailable,in
anemergencyyoumayaddamaximumof1
quart(1liter)ofACEAC3orAPISNengineoil
onetimeuntilthenextoilchange.
Formoreinformationonthecorrectengineoil
foryourvehicle,contactanauthorizedAudideal-
erorauthorizedAudiServiceFacility.Havetheoil
changedbyanauthorizedAudidealerorauthor-
izedServiceFacility.

Audirecommends
GUBDGBEPrarzssional
AudirecommendsusingtheLongLifehigh-per-
formanceengineoilfromAudiGenuineParts.


ages
Engineoilpressure
Turnoffengine.Oilpressuretoolow

80A012721BG
CheckingandFilling

Ifyoumustaddcoolant,useamixtureofwater
andcoolantadditive.Mixing thecoolantadditive
withdistilledwaterisrecommended.
>Allowtheenginetocool.
>
Placealarge,thicktowelonthecoolantexpan-
siontankcover.
>Pushthereleasebutton@)>fig.260onthe
cap
andcarefullyturnittotheleftuntilyou
feelresistance>/\.
>Pushthereleasebuttonagainandremovethe
capcompletely.
»Addcoolantmixedinthecorrectratio
=page318uptotheMAXmarking.
>Makesurethatthefluidlevelremainsstable.
Add morecoolantifnecessary.
>Turn the captotherighttotightenituntilyou
feelresistanceasecondtime.
Coolantlossusuallyindicatesthatthereisaleak.
Immediatelydriveyourvehicletoanauthorized
AudidealerorauthorizedAudiServiceFacility
andhavethecoolingsysteminspected.Ifthe
coolingsystemisnotleaking,coolantlosscanre-
sultfromthecoolantboilingdueoverheating
andthenbeingforcedoutofthecoolingsystem.

C@)Note
Donotaddcoolantiftheexpansiontankis
empty.Theremaybeairinthecoolingsys-
tem,whichincreasestheriskofenginedam-
age.Ifthisisthecase,donotcontinuedriv-
ing.SeeanauthorizedAudidealerorauthor-
izedAudiServiceFacilityforassistance.
Brakefluid
a a 9 “
oOoO


ZAWARNING
— Theenginecompartmentinanyvehiclecan
be
adangerousarea.Stoptheengineandal-
lowitto coolbeforeworkingintheengine
compartment.Alwaysfollowtheinforma-
tionfoundin>page311,Generalinforma-
tion.
—Neveropenthehoodifyoucan seeorhear
steamorcoolantescapingfromtheengine
compartment.This increasestheriskof
burns.Thecoolingsystemisunderpressure.
Whenyounolongerseeorhearsteamor
coolantescaping,youmayopentheengine
compartmentwithcaution.
—Whenworkingintheenginecompartment,
rememberthattheradiatorfancanswitch
oneveniftheignitionisswitchedoff,which
increasestheriskofinjury.
—Coolantadditiveandcoolantcanbedanger-
oustoyourhealth.Forthisreason,storethe
coolantintheoriginalcontainerandaway
fromchildren.Thereisariskofpoisoning.

Fig.261Enginecompartment:caponbrakefluidreservoir
Observethesafetyprecautions>A\inGeneral
informationonpage311.
Checkingthebrakefluidlevel
>Readthebrakefluidlevelonthebrakefluidres-
ervoir>page314,fig.258.Thebrakefluidlev-
elmustbebetweentheMINandMAXmarkings
of.
Thebrakefluidlevelismonitoredautomatically.
Changingthebrakefluid
Brakefluidshould bechangedatregularinter-
vals.Havethebrakefluidchangedbyanauthor-
izedAudidealerorauthorizedAudiServiceFacili-
ty.TheauthorizedAudidealerorauthorizedAudi
ServiceFacilitywillinformyouofthereplace-
mentintervals.

ZA\WARNING
—IfthebrakefluidlevelisbelowtheMIN
marking,itcanimpairthebrakingeffectand
drivingsafety,whichincreasetheriskofan
accident.Donotcontinuedriving.Seeanau-
thorizedAudidealerorauthorizedAudi
ServiceFacilityforassistance.>


319

CheckingandFilling


—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.

@Note
—IfthebrakefluidlevelisabovetheMAX
marking,brakefluidmayleakoutoverthe
edgeofthereservoirandresultindamage
tothevehicle.
—Donotallowanybrakefluidtocomeinto
contactwiththevehiclepaint,becauseit
willcorrodethepaint.
Electricalsystem
Iftheieorfmindicatorlightturnson,thereisa
malfunctioninthegenerator,thebattery,orthe
vehicleelectricalsystem.
=Electricalsystem:malfunction!Safelystop
vehicle
Donotcontinuedrivingandswitchtheengineoff
=>AX.SeeanauthorizedAudidealerorauthorized
AudiServiceFacilityforassistance.
=Electricalsystem:malfunction!Restartnot
possible.PleasecontactService
Itwillnot bepossible torestarttheengineonce
youturnitoff.Vehiclefunctions/drivingstability
maybelimited.DrivetoanauthorizedAudideal-
erorauthorizedAudiServiceFacilityimmediate-
ly.
=Electricalsystem:malfunction!Pleasecon-
tactService
Switchoffallelectricalequipmentthatisnot
needed.Vehiclefunctions/drivingstabilitymay
320
belimited.DrivetoanauthorizedAudidealeror
authorizedAudiServiceFacilityimmediately.
=Electricalsystem:lowbatterycharge.Bat-
tery
willbechargedwhiledriving
Thestartingabilitymaybeimpaired.
Ifthismessageturnsoffafteralittlewhile,the
vehiclebatteryhaschargedenoughwhiledriving.
Ifthismessagedoesnotturnoff,driveimmedi-
atelytoanauthorizedAudidealerorauthorized
AudiServiceFacility.

ZAWARNING
Whenthereisanelectricalsystemmalfunc-
tion,vehiclefunctionsmaynotworkanddriv-
ingstabilitymaybelimited,whichincreases
theriskofanaccident.Stopdrivingand
switchtheengineoff.SeeanauthorizedAudi
dealerorauthorizedAudiServiceFacilityfor
assistance.


Battery
Palaees)
Becauseofthecomplexpowersupply,allworkon
batteriessuchasdisconnecting,replacing,etc.,
should only beperformedby anauthorizedAudi
dealerorauthorizedAudiServiceFacility>A\.
Multiplebatterieswithdifferenttechnologies
maybeinstalledinyourvehicle:
—Vehiclebattery(forexample,forstartingthe
engine,basicpowersupply)>page321,Lead
batteryor>page321,Otherbatterytypes
—Auxiliarybattery(forexample,forrecuperation
oroptionalequipment)>page321,Otherbat-
terytypes
Notrunningthevehicleforlongperiodsof
time
Thebatterywillgraduallydrainifthevehicle
doesnotrunforlongperiodsoftime.Toensure
thatthevehiclecanstill bestarted,theelectrical
equipmentwillbereducedorswitchedoff
=>page148.Someconveniencefunctions,such
asinteriorlightingorpowerseatadjustment,
maynotbeavailableundercertain

80A012721BG
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.
327