2019 AUDI Q7 check engine

4M0012721BG

CheckingandFilling

WARNING
—Neveropenthehoodwhenthereissteamor
coolantescapingfromtheenginecompart-
ment,becausethereisariskthatyoucould
beburned.Waituntilnosteamorcoolantis
escaping.
—Forsafetyreasons,thehoodmustalwaysbe
latchedsecurelywhiledriving.Becauseof
this,alwayscheckthehoodafterclosingit


Enginecompartmentoverview
Themostimportantcheckpoints.

tomakesureitislatchedcorrectly.Thehood
islatchedifthefrontcornerscannotbelift-
ed.
—Ifyounoticethatthehoodisnotlatched
whileyouaredriving,stopimmediatelyand
closeit,becausedrivingwhenthehoodis
notlatchedincreasestheriskofanaccident.
—Ifthehoodisnotlatchedcompletely,it
couldflyupwhileyouaredrivingandob-
structyourvision.


Fig.262Typicallocationof thereservoirandtheengineoilfilleropening
Followthesafetyprecautions>page313.
@)Jumpstartpoints:(+)underacover,(-)with
hexheadscrew>page323>page364
2)Coolantexpansiontank(E)>page320
)Engineoillabel*withVWstandard
=>page315
Engineoilfilleropening(%27)>page317
Brakefluidreservoir((O8)>page320
5)Washerfluidreservoir(7)>page324
Thecoolantexpansiontankandtheengineoil
fillingopeningmaybelocatedindifferentplaces
withintheenginecompartment,dependingon
theengineversion.
Engineoil
Iftheengineoillevelistoolow
Ifyouneedtoaddengineoil,useanoilthatis
listedonthesticker.Thestickerislocatedatthe>
315

CheckingandFilling

frontoftheenginecompartment>page315,
fig.262.
Iftherecommendedengineoilisnotavailable,in
anemergencyyoumayaddamaximumof1
quart(1liter)ofACEAC3orAPISNengineoil
onetimeuntilthenextoilchange.
Formoreinformationonthecorrectengineoil
foryourvehicle,contactanauthorizedAudideal-
erorauthorizedAudiServiceFacility.Havetheoil
changedbyanauthorizedAudidealerorauthor-
izedServiceFacility.

Audirecommends
Stastrol)(ZIDIEGEProrzssional
AudirecommendsusingtheLongLifehigh-per-
formanceengineoilfromAudiGenuineParts.
Messages
Engineoilpressure


2Turnoffengine.Oilpressuretoolow
Stopdrivingandswitchtheengineoff.Checkthe
engineoillevel>page317.
—Iftheengineoillevelistoolow,addengineoil
=>page317.Onlycontinuedrivingoncethein-
dicatorlightturnsoff.
—Iftheengineoilleveliscorrectandtheindica-
torlightstillturnson,turntheengineoffand
do
notcontinuedriving.SeeanauthorizedAudi
dealerorauthorizedAudiServiceFacilityforas-
sistance.
Engineoillevel
Appliesto:vehicleswithoillevelwarning
2Pleaseaddoilimmediately.
Stoptheengineand donotcontinuedriving.
Checktheengineoillevel>page317andadd
engineoilimmediately>page317.
&Pleaseaddmax.xqt(xJ)oil.Youcancon-
tinuedriving
Addtheamountofoilshownimmediately
=>page317.
Reducingtheoillevel
EAPleasereduceoillevel.
316
Thereistoomuchoilintheengineandthereisa
risk
ofdamagingthecatalyticconverteroren-
gine.DrivetoanauthorizedAudidealerorau-
thorizedAudiServiceFacilityimmediatelytohave
engineoilextractedifnecessary.Avoidhighen-
ginespeeds,fullacceleration,andheavyengine
loads.
Engineoilsensor
2Oillevelsensor:oilchangenecessary.Please
contactService
Fuelhasenteredtheengineoil.Thiswillcause
theengineoilleveltoriseslowlyandtheengine
oilqualitytodecrease.Donotextractengineoil
toreducethelevel,becausethiswillincreasethe
riskofenginedamage.DrivetoanauthorizedAu-
didealerorauthorizedAudiServiceFacilityim-
mediatelytohaveengineoilextracted.
|=.)Oillevelsystem:malfunction!Pleasecon-
tactService
Thesensorthatcheckstheengineoillevelhas
malfunctioned.DrivetoanauthorizedAudideal-
erorauthorizedAudiServiceFacilityimmediately
tohavethemalfunctioncorrected.
BBOilpressuresensor:malfunction!Please
contactService
Thesensorthatcheckstheengineoilpressure
hasmalfunctioned.DrivetoanauthorizedAudi
dealerorauthorizedAudiServiceFacilityimmedi-
atelytohavethemalfunctioncorrected.
Enginewarm-uprequest
[flPleasedrivetowarmupengine
Fuelhasenteredtheengineoil,eitherduetolow
outsidetemperaturesorfrequentshortdrives.
Driveuntiltheengineiswarmso thatthefuelin
theengineoilwillevaporate.Avoidhighengine
speeds,fullaccelerating,andheavyengineloads
whendoing this.
@Tips
Theoilpressurewarning=isnotanoillevel
indicator.
Alwayschecktheoillevelregularly.

4M0012721BG
CheckingandFilling

Checkingtheengineoillevel
TheengineoillevelcanbecheckedintheInfo-
tainmentsystem
Observethesafetyprecautions>/A\inWorking
intheenginecompartmentonpage313.
>Parkthevehicleonalevelsurface.
>Shuttheengineoffwhenitiswarm.
>Switchonlytheignitionbackon.
>Waitapproximatelytwominutes.
>SelectintheInfotainmentsystem:the[MENU
button>Vehicle>leftcontrolbutton>Service
&checks>Oillevel.
>Readtheoillevelinthedisplay.Addengineoil
ifthe barintheoillevelindicatorisjustbelow
“min”>page317.
C)Note
Iftheengineoillevelistoolowortoohigh,
thereisariskofenginedamage.
@Tips
Theoillevelindicatorinthedisplayisonlyan
informationaldisplay.Iftheoillevelistoo
low,aminimumoilwarningappearsinthein-
strumentcluster.Addoilandclosethehood.
ThecurrentoillevelisdisplayedintheInfo-
tainmentsystemthenexttimetheignitionis
switchedon.
G@)Tips
Theengineoilconsumptionmaybeupto
0.5quart/600miles(0.5liter/1,000km),de-
pendingondrivingstyleandoperatingcondi-
tions.Consumptionmaybehigherduring the
first3,000miles(5,000km).Theengineoil
levelmustbecheckedregularly.Itisbestto
checkeachtimeyourefuelyourvehicleand
before longdrives.
—Becauseofthelubricationandcoolingof
theengine,combustionenginesconsume
oil.Theoilconsumptionvariesdepending
ontheengineandmaychangeduringthe
servicelifeoftheengine.Enginesgenerally
consumemoreoilatthebeginningduring
thebreak-inperiod.Thenoilconsumption
stabilizesafterthebreak-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.
Addingengineoil

B8K-2120



Fig.263Enginecompartment:engineoilfilleropening
cover
Observethesafetyprecautions>A\inWorking
intheenginecompartmentonpage313.
317
>

CheckingandFilling

>Turn theengineoff.
>Openthehood>page314.
>Unscrewthecap%~fortheengineoilfiller
opening>fig.263.
>Carefullyadd0.5quart(0.5liter)ofthecorrect
oil>page315.
>Closetheengineoilfilleropeningcap.
>Closethehood>page314.
>Restarttheignitionaftertwominutesandread
thecurrentoillevelintheInfotainmentsystem
=page317,Checkingtheengineoillevel.
>Addmoreoilifnecessary.

Z\WARNING
—Whenaddingoil,donotletoildripontohot
enginecomponents.Thisincreasestherisk
ofafire.
—Youmustsealthecapontheoilfilleropen-
ingcorrectlyso thatoildoesnotleakouton-
tothe hotengineandexhaustsystemwhen
theengineisrunning,becausethisisa fire
hazard.
—Alwayscleanskinthoroughlyifitcomesinto
contactwithengineoil.
—Engineoilispoisonousandmustbekeptout
ofreachofchildren.
—Storetheengineoilsecurelyintheoriginal
container.

@)Note
— TheNewVehicleLimitedWarrantydoesnot
coverdamageormalfunctionsiftherecom-
mendedintendeduseofthevehicleand
maintenancemeasureslistedinthe Audi
Owner'sManualandtheWarranty&Main-
tenanceBookletwerenotfollowed.
—Onlyusehigh-gradeengineoilthatexplicit-
lymeetstheAudioilqualitystandardfor
yourvehicle.Usinganotheroilmaycause
severevehicledamage.
—Donotmixanyadditionallubricantsinto
theengineoil.Damagecausedbysuchaddi-
tivesisnotcoveredby thewarranty.
@Forthesakeoftheenvironment
—Oilshouldneverenterthesewersystemor
come
intocontactwiththeground.
318
—Followthelegalregulationsinthecountry
whereyouarelocatedwhendisposingof
emptyoilcontainers.
Changingengineoil
We
recommendhavingtheoilchangedatanau-
thorizedAudidealerorauthorizedAudiService
Facility.
Followthesafetyprecautions>page313,Work-
ingintheenginecompartment.
Theengineoilmustbechangedattheintervals
specifiedintheWarranty&MaintenanceBook-
let.Thisisveryimportantbecausethelubrication
functionoftheoilgraduallydeclinesduringregu-
larvehicleoperation.
Theengineoilshouldbechangedmorefrequent-
lyundercertaincircumstances.Havetheoil
changedmorefrequentlyifyouoftendriveshort
distances,yourvehicleispredominantlyinstop-
and-gotrafficsituations,isinverydustyenviron-
ments,orisoperatedforlongperiodsoftimein
temperaturesbelowzero.
Cleansingadditivesintheoilmakefreshoilap-
peardarkeraftertheenginehasrunbriefly.This
isnormalandnoreasontochangetheengineoil
morefrequentlythanrecommended.
Becausecorrectlydisposingofengineoilisdiffi-
cultandspecialtoolsandtechnicalknowledge
are neededforanoilchange,havingyourengine
oilchangedby anauthorizedAudidealeror au-
thorizedAudiServiceFacilityisrecommendedto
haveyourengineoilchangedbyanauthorized.
Ifyouchangetheengineoilyourself,pleasenote
thefollowingimportantinformation:

Z\WARNING
Ifyouchangetheengineoilonthevehicle
yourself,thefollowingprecautionsmustbe
followed:
—Wearprotectiveeyewear.
—Duetotheriskofscalding,allowtheengine
tocool downsufficiently.
—Maintainenoughdistancewhenyouarere-
movingtheoildrainplug.Whiledoingthis,

4M0012721BG
CheckingandFilling


keep yourforearmparalleltothegroundto
reducetheriskofhotoildrippingdownyour
arm.
—Draintheoilintoacontainerdesignedfor
thispurposethatislargeenoughtoholdthe
fullamountofoilinyourengine.
—Engineoilispoisonous.Alwaysstoreoutof
reachofchildren.
—
Prolongedcontactofusedengineoilwith
theskinmaycauseskindamage.Always
washoiloffimmediatelywithsoapandwa-
tertoprotectyourskin.
@)Note
Donotmixanyadditiveswiththeengineoil.
Additivesmaycauseengine damagethatis
notcoveredbyyourNewVehicleLimitedWar-
ranty.

@Forthesakeoftheenvironment
—Beforechangingtheengineoil,makesure
youcandisposeoftheusedengineoilcor-
rectly.
—Engineoilmustalways bedisposedofcor-
rectly.Donot dumpitintheyard,inthefor-
est,orinopenwater,riverchannels,orsew-
ers.
—Haveyour usedengineoilrecycledbybring-
ingittoausedoilcollectionsiteorcontact
agasstation.
Coolingsystem
Theenginecoolingsystemisfilledwithamixture
ofpurifiedwaterandcoolantadditiveatthefac-
tory.Thiscoolantmustnotbe notchanged.
ThecoolantlevelismonitoredthroughtheBin-
dicatorlight>page21.However,occasionally
checkingthecoolantlevelmanuallyisrecom-
mended.
Ifyoumustaddcoolant,useamixtureofwater
andcoolantadditive.Mixing thecoolantadditive
withdistilledwaterisrecommended.
Coolantadditive
Thecoolantadditiveismadeofanti-freezingand
corrosionprotectionagents.Onlyuse thefollow-
ingcoolantadditives.Theseadditivesmaybe
mixedwitheachother.

CoolantadditiveSpecification

G12++TL774G

G13TL774]


Theamountofcoolantadditivethatneedstobe
mixedwithwaterdependsontheclimatewhere
thevehiclewillbeoperated.Ifthecoolantaddi-
tivepercentageistoolow,thecoolantcanfreeze
anddamagetheengine.





CoolantFreezeprotec-
additivetion
Warmmin.40%min.-13°F
regionsmax.45%(-25°C)
Cold min.50%max.-40°F
regionsmax.55%(-40°C)

C@)Note
—Beforethestartofwinter,haveanauthor-
izedAudidealerorauthorizedAudiService
Facilitycheckifthecoolantadditiveinyour
vehiclematchesthepercentageappropriate
fortheclimate.Thisisespeciallyimportant
whendrivingincolderclimates.
—Iftheappropriatecoolantadditiveisnot
availableinanemergency,donotadd any
otheradditive.Youcoulddamagetheen-
gine.Ifthishappens,onlyusewaterandre-
storethecorrectmixtureratiowiththe
specifiedcoolantadditiveassoonaspossi-
ble.
—Onlyrefillwithnewcoolant.
—Radiatorsealantmustnotbemixedwith
thecoolant.
319

CheckingandFilling

Addingcoolant

Fig.264Enginecompartment:releasebuttononcoolant
expansiontank
Observethesafetyprecautions>page313,
Workingintheenginecompartment.
Checkingtheenginecoolantlevel
>Parkthevehicleonalevelsurface.
>Switchtheignitionoff.
>Readthecoolantlevelonthecoolantexpansion
tank>fig.264.
>ThecoolantlevelmustbebetweentheMINand
MAXmarkingswhentheengineincold.When
theengineiswarm,thecoolantlevelcan be
slightlyabovetheMAXmarking.
Addingcoolant
Requirement:
theremustbearesidualamountof
coolantintheexpansiontank>@).
>Allowtheenginetocool.
> Placealarge,thicktowelonthecoolantexpan-
siontankcover.
>Pushthereleasebutton>fig.264andcareful-
lyunscrewthecaptotheleftuntilyoufeelre-
sistance>A\.
>Pushthereleasebuttonagainandremovethe
capcompletely.
»Addcoolantmixedinthecorrectratio
=>page319uptotheMAXmarking.
>Makesurethatthefluidlevelremainsstable.
Add morecoolantifnecessary.
>
Turn thecaptotherighttotightenituntilyou
feelresistanceasecondtime.
Coolantlossusuallyindicatesthatthereisaleak.
Immediatelydriveyourvehicletoanauthorized
AudidealerorauthorizedAudiServiceFacility
andhavethecoolingsysteminspected.Ifthe
320
coolingsystemisnotleaking,coolantlosscanre-
sultfromthecoolantboilingdueoverheating
andthenbeingforcedoutofthecoolingsystem.

Z\WARNING
— Theenginecompartmentinanyvehiclecan
beadangerousarea.Stoptheengineandal-
lowittocoolbeforeworkingintheengine
compartment.Alwaysfollowtheinforma-
tionfoundin>page313,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.

Brakefluid
B8K-2122

Fig.265Enginecompartment:caponbrakefluidreservoir>

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CheckingandFilling

Observethesafetyprecautions>A\inWorking
intheenginecompartmentonpage313.
Checkingthebrakefluidlevel
>»Readthebrakefluidlevelonthebrakefluidres-
ervoir>page315,fig.262.Thebrakefluidlev-
elmustbebetweentheMINandMAXmarkings
of.
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
meet
theU.S.FederalMotorVehicleStand-
ard(FMVSS)116DOT4,Class6.

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

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

321

CheckingandFilling

Battery
Peleeeees(el)
Becauseofthecomplexpowersupply,allworkon
batteriessuchasdisconnecting,replacing,etc.,
should only beperformedby anauthorizedAudi
dealerorauthorizedAudiServiceFacility>A\.
Multiplebatterieswithdifferenttechnologies
maybeinstalledinyourvehicle:
—Vehiclebattery(forexample,forstartingthe
engine,basicpowersupply)>page322,Lead
batteryor>page323,Otherbatterytypes
—Auxiliarybattery(forexample,forrecuperation
oroptionalequipment)>page323,Otherbat-
terytypes
Notrunningthevehicleforlongperiodsof
time
Thebatterywillgraduallydrainifthevehicle
doesnotrunforlongperiodsoftime.Toensure
thatthevehiclecanstillbestarted,theelectrical
equipmentwillbereducedorswitchedoff
=page151.Someconveniencefunctions,such
asinteriorlightingorpowerseatadjustment,
maynotbeavailableundercertaincircumstan-
ces.Theseconveniencefunctionswillbeavailable
againonceyouswitchtheignitiononandstart
theengine.
Evenwhenelectricalequipmentisswitchedoff,
theequipmentcanstilldrainthebatteryifthe
vehicleisnotdrivenforLongperiodsoftime.
Deepdrainingresultsinachemicalreactionthat
destroys
theinsideofthebattery.Thebattery
mustbechargedevery monthtopreventthis
=page323.ContactanauthorizedAudidealeror
authorizedAudiServiceFacilityformoreinfor-
mation.
Winteroperation
Coldweatherplaceshigherdemandsonthebat-
tery.Thisresultsinreducedstartingability.Have
thebatterycheckedbyanauthorizedAudidealer
orauthorizedAudiServiceFacilitybeforecold
weatherbegins.
322

ZAWARNING
—Allworkonthebatteryorelectricalsystem
inyourvehiclecanresultininjuries,chemi-
calburns,accidents,or burns.Becauseof
this,allworkmustbeperformedonlybyan
authorizedAudidealerorauthorizedAudi
ServiceFacility.
—Neverconnectthechargingcableorjump
startcabledirectlytoyourvehiclebattery.
Onlyusethe connectionsintheenginecom-
partment>page323.


ZA\WARNING
CaliforniaProposition65Warning:
—Batteryposts,terminalsandrelatedacces-
soriescontainleadandleadcompounds,
chemicalsknowntotheStateofCalifornia
tocausecancerandreproductiveproblems.
Washhandsafterhandling.

C)Note
—Ifthevehiclewillbe parkedforlongperiods
oftime,protectthebatteryagainstthecold
sothatitwillnot be destroyed by“freezing”
=>page323,Chargingthebattery.
—Thereareelectricalcomponentsunderthe
cargofloorbehindatrimpanelthatwarm
upduringoperation.To reducetheriskof
thecomponentsoverheating, donotstore
objectssuchasblanketsunderthecargo
floor.Ifthecomponentsoverheat,theywill
switchofftemporarily.Thiswillbeindicated
byamessagethatwillbedisplayedinthe
instrumentclusteruntilthetemperaturere-
turnstonormal.
Leadbattery
Explanationofwarnings:

©Alwaysweareyeprotection.

Batteryacidishighlycorrosive.Always
wearprotectiveglovesandeyeprotection.


forbidden.>

®Fire,sparks,openflame,andsmokingare