2019 AUDI Q7 engine overheat

4M0012721BG
Instrumentcluster

Certaininstrumentclustercontentcanalsobe
displayedinthehead-updisplay*>page27.

ZAWARNING
Donotassumetheroadsarefreeoficebased
ontheoutsidetemperaturedisplay.Beaware
thattheremaybeiceonroadsevenwhenthe
outsidetemperatureisaround41°F(+5°C)
andthaticecanincreasetheriskofaccidents.

@Tips
— Dependingonvehicleequipment,thein-
strumentillumination(needlesandgauges)
mayturnonwhenthe lightsareoffandthe
ignitionisswitchedon.Theilluminationfor
thegaugesreducesautomaticallyandeven-
tuallyturnsoffasbrightnessoutsidein-
creases.Thisfunctionremindsthedriverto
turnthelowbeamsonattheappropriate
time.
—Youcanselecttheunitsusedfortempera-
ture,speed,andothermeasurementsinthe
Infotainmentsystem>page247.
—Ifyourvehicleisstationaryorifyouaredriv-
ingatverylowspeeds,thetemperaturedis-
playedmaybeslightlyhigherthantheac-
tualtemperatureoutsideduetotheheatra-
diatingfromtheengine.
—Attemperaturesbelow41°F(+5°C),a
snowflakesymbolappearsinfront ofthe
temperaturedisplay>A\.
Coolanttemperature
indicator
Thecoolanttemperaturedisplay@>page14,
fig.3or>page14,fig.4onlyfunctionswhen
theignitionisswitchedon.Toreducetheriskof
enginedamage,pleaseobservethefollowing
notesaboutthetemperatureranges.
Coldrange
IfonlytheLEDsatthebottomofthegaugeturn
on,theenginehasnot reachedoperatingtem-
peratureyet.Avoidhighenginespeeds,fullaccel-
eration,andheavyengineloads.
Normalrange
Theenginehasreacheditsoperatingtempera-
tureoncetheLEDsuptothecenterofthegauge
turnon.Ifthegindicatorlightintheinstru-
mentclusterdisplayturnson,thecoolanttem-
peratureistoohigh>page21.
@)Note
—Auxiliaryheadlightsandotheraccessoriesin
front oftheairintakeimpairthecoolingef-
fectofthecoolant.Thisincreasestheriskof
theengineoverheatingduringhighoutside
temperatures andheavyengineload.
—Thefrontspoileralsohelpstodistribute
coolingaircorrectlywhiledriving.Ifthe
spoilerisdamaged,thecoolingeffectwill
beimpairedandtheriskoftheengineover-
heatingwillincrease.SeeanauthorizedAu-
didealerorauthorizedAudiServiceFacility
forassistance.
Tachometer
Thetachometerdisplaystheenginespeedinrev-
olutionsperminute(RPM).
Thebeginningoftheredzoneinthetachometer
indicatesthemaximumpermissibleenginespeed
forallgearsoncetheenginehasbeenbrokenin.
Beforereachingthiszone,youshouldshiftinto
thenexthighestgear,selectthe"D/S"selector
leverposition,orremoveyourfootfromtheac-
celeratorpedal.
@)Note
Theneedleinthetachometer@)>page14,
fig.3or>page14,fig.4mayonlybeinthe
redareaofthegaugeforashorttimeorthere
isariskofenginedamage.Thelocationwhere
theredzonebeginsvariesdependingonthe
engine.
@)Forthesakeoftheenvironment
Upshiftingearlyhelpsyoutosavefuelandre-
ducesoperatingnoise.
15

Instrumentcluster

Fuellevel
Thedisplay@>page14,fig.3or>page14,
fig.4onlyfunctionswhentheignitionisswitch-
edon.Whenthedisplayhas reached thereserve
mark,aredLEDturnsonandtheAyindicator
lightturnson>page24.
Forthetankcapacityinyourvehicle,refertothe
TechnicalData>page375.
@)Note
Neverdriveuntilthetankiscompletelyemp-
ty.Theirregularsupplyoffuelthatresults
fromthatcancauseenginemisfires.Uncom-
bustedfuelwillthenentertheexhaustsys-
tem.Thiscancauseoverheatinganddamage
tothecatalyticconverter.
Odometer
B4M-0225

Fig.5Instrumentcluster: odometerandresetbutton
Tripodometerandodometer
Thetripodometershowsthedistancedriven
sinceitwaslastreset.Itcanbeusedtomeasure
shortdistances.
Thetripodometercanberesettozerobypress-
ingthe[®]resetbutton.


Theodometershowsthetotaldistancethatthe
vehiclehasbeendriven.
Malfunctionindicator
Ifthereisamalfunctionintheinstrumentclus-
ter,DEFwillappearinthetripodometerdisplay.
Havethemalfunctioncorrectedassoonas possi-
ble.
16

G)Tips
Theunitsofmeasurementcanbesetinthe
Infotainmentsystem>page247.
Multifunctionsteering
wheel


Fig.7Leftsideofmultifunctionsteeringwheel
Requirement:theignitionmustbeswitchedon.
Thedriverinformationsystemcontainsmultiple
[email protected]
©.
Thefollowingtabsmaybeavailable,depending
onvehicleequipment:



FirsttabVehiclefunctions>page19
SecondMessages
tab2
Thirdtab»)|Nightvisionassist*>page124
Fourthtab|Radio>page165
Media>page165

4M0012721BG
Instrumentcluster

@Brakesoverheating.PleaseshifttoD
Therewasaheavyloadonthebrakes.Placethe
selectorleverinthe"D/S"positioninordertouse
theenginebrakingeffectandreduce theloadon
thebrakes.
Brakebooster:limitedfunctionality.Youcan
continuedriving.PleasecontactService
Thereisamalfunctioninthebrakebooster.The
brakeboosterisavailable,butitseffectivenessis
reduced.Brakingbehaviormaybedifferentfrom
howitnormallyfunctionsandthebrake pedal
mayvibrate.DrivetoanauthorizedAudidealeror
authorizedAudiServiceFacilityimmediatelyto
havethemalfunctioncorrected.

ZAWARNING
—Readandfollowthewarningsin
=>page313,Workingintheenginecom-
partmentbeforeopeningthehood and
checkingthebrakefluidlevel.
—Ifthebrakesystemindicatorlightdoesnot
turnofforitturnsonwhiledriving,the
brakefluidlevelinthereservoiristoolow,
andthisincreasestheriskofanaccident.
Stopthevehicleand donotcontinuedriv-
ing.SeeanauthorizedAudidealerorau-
thorizedAudiServiceFacilityforassistance.
—Ifthebrakesystemindicatorlightturnson
togetherwiththeABSandESCindicator
lights,theABS/ESCregulatingfunctionmay
bemalfunctioning.Functionsthatstabilize
thevehiclearenolongeravailable.This
couldcausethevehicletoswerve,whichin-
creasestheriskthatthevehiclewillslide.
Donotcontinuedriving.Seeanauthorized
AudidealerorauthorizedAudiServiceFacili-

tyforassistance.
PARK/(@)/$@)Electromechanicalparking
brake
Ifthe[JNM(USAmodels)/JJ(Canadamodels)
indicatorlightturnson,theparkingbrakewas
set.
IftheZi(USAmodels)/[@(Canadamodels)in-
dicatorlightisblinking,thebrakingforcehasnot
builtupenoughorithasdecreased.Selectthe

"P"selectorleverpositiontosecurethevehicle.
Makesuretheindicatorlightisoffbeforeyou
startdriving.
wwParkingbrake:malfunction!Pleasecontact
Service
Thereisamalfunctionintheparkingbrake.Drive
toanauthorizedAudidealerorauthorizedAudi
ServiceFacilityimmediatelytohavethemalfunc-
tioncorrected.Donotparkthevehicleonhills,
becauseitcouldroll.
|(USAmodels)/{@](Canadamodels)Parking
brake:warning!Vehicleparkedtoosteep
Thereisnotenoughbrakingforce toholdtheve-
hicleinplace.Thebrakeshaveoverheated.The
vehiclecouldrollaway,evenonasmallincline.
Ea(USAmodels)/{@](Canadamodels)Parking
brake:applied
Ifthismessageappears,pressthebrakepedal
firstandthenreleasetheparkingbrakeifneces-
sary.
Fa(USAmodels)/[@)(Canadamodels)Parking
brake:emergencybraking
Theemergencybrakingfunctionwastriggered.
G)Tips
Foradditionalinformationontheparking
brake,see>page81.
meRET
_E|Turnoffengineandcheckcoolantlevel.See
owner'smanual
Thecoolantlevelistoolow.
Stopdrivingandswitchtheengineoff.Checkthe
coolantlevel>page319.
—Ifthecoolantlevelistoolow,addcoolant
=page320.Onlycontinuedrivingoncethein-
dicatorlightturnsoff.
||Coolanttemperature:toohigh.Letengine
runwhilevehicleisstationary
Lettheenginerunatidleforafewminutesto
cooloff,untiltheindicatorlightturnsoff.
21

4M0012721BG
Instrumentcluster

IftheBindicatorlightturnson,thehoodlock
isnotlatchedcorrectly.
Stopimmediatelyandclosethehood
>page314.
3/33ElectronicStabilizationControl(ESC)
IftheBindicatorlightblinkswhiledriving,the
ESCorASR(Anti-SlipRegulation)isactivelyregu-
lating.
IftheBindicatorlightturnson,thesystemhas
switchedtheESCoff.Inthiscase,youcanswitch
theignitionoffandthen ontoswitchtheESCon
again.Theindicatorlightturnsoffwhenthesys-
temisfullyfunctional.
IftheBindicatorlightturnson,ESCwas
switchedoffusingthe|£%]button>page147.


Stabilizationcontrol(ESC/ABS):malfunction!
Seeowner'smanual
IftheBindicatorlightandthefs(USAmod-
els){@)(Canadamodels)ABSindicatorlightturn
onandthemessageappears,thereisamalfunc-
tionintheABSortheelectronicdifferentiallock.
ThisalsocausestheESCtomalfunction.The
brakesstillfunctionwiththeirnormalpower,but
ABSisnotactive.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
@)Tips
ForadditionalinformationonESCandABS,
see>page146.
BDrivesystem:malfunction!Safelystopvehi-
cle
Thereisamalfunctioninthedrivesystem.The
brakeboosterandthepowersteeringmaystop
working.
Stopthevehicleimmediatelyorassoon
aspossibleanddonotcontinuedriving.Havethe
problemcorrectedby anauthorizedAudidealer
orauthorizedAudiServiceFacility.
BDrivesystem:malfunction!Pleasecontact
Service
Thereisamalfunctioninthedrivesystem.Drive
slowlytoanauthorizedAudidealerorauthorized
AudiServiceFacilitytohavethemalfunctioncor-
rected.
!”Enginespeedlimitation

IftheAindicatorlightturnson,theenginewill
beautomaticallylimitedtotheRPMdisplayedin
theinstrumentcluster.Thisprotectstheengine
fromoverheating.
Theenginespeedlimitationdeactivatesoncethe
engineisnolongerinthecriticaltemperature
rangeandyouhavereleasedtheacceleratorped-
alonce.
Iftheenginespeedlimitationwasactivatedby
anenginecontrolmalfunction,theByindicator
lightalsoturnson.Makesuretheenginespeed
doesnotgoabovethespeeddisplayed,forexam-
plewhendownshifting.Drivetoanauthorized
AudidealerorauthorizedAudiServiceFacilityim-
mediatelytohavethemalfunctioncorrected.
G)Tips
Dependingontheengine:theenginespeed
maybelimitedwhentheengineiscold-the
fullengineoutputwillnotbeavailable.When
theengineisatoperatingtemperature,the
redareainthetachometermovestoahigher
RPMrange.
<>Airsuspension
Appliesto:vehicleswithairsuspension
BAirsuspension:servicemode.Vehiclecanbe
movedbuthandlingmaybeimpaired
Servicemodeisactivated.Carefullydrivetoan
authorizedAudidealerorauthorizedAudiService
Facilityimmediatelytohavetheservicemodede-
activated.
BAirsuspension:malfunction!Youmaycon-
tinuedrivingslowlyatmax.XXkm/h
Thereisamalfunction.Drivingstabilitymaybe
limited.DrivetoanauthorizedAudidealeror
23
>

IntelligentTechnology


ServiceFacilityworkonthebrakesystem.
Incorrectrepairscouldimpair thefunction.
—Neverletthevehiclerollwhiletheengineis
stoppedbecausethisincreasestheriskofan
accident.

C)Note
—Neverletthebrakes“rub”bypressingthe
pedallightlywhenbrakingisnotactually
necessary.Thiscausesthebrakestoover-
heatandincreasesbrakingdistanceand
causeswear.
—Beforedrivingdownhillalongdistanceona
steephill, decreaseyourspeedandselecta
lowergear.Thismakesuseoftheengine
brakingeffectandreducestheloadplaced
onthebrakes.Ifyouneedtobrakeaddition-
ally,brakeinintervalsandnotcontinuously.
G)Tips
—Ifthebrakeboosterisnotworking,you
mustpressthebrake pedalwithmuchmore
forcethannormal.
—Ifyouretrofityourvehiclewithafrontspoil-
er,wheelcoversorsimilaritems,makesure
thattheairflowtothefrontwheelsisnot
obstructed.Otherwisethebrakesystemcan
overheat.
Electromechanical
steering,all-wheel
steering
Theelectromechanicalsteeringsupportsthe
driver'ssteeringmovements.
Powersteeringadaptselectronicallybasedon
thevehiclespeed.
Indicatorlightsandmessages
aSteering:malfunction!Pleasestopvehicle
Ifthisindicatorlightturnsonandstaysonand
thismessageappears,thepowersteeringmay
havefailed.
Stopthevehicleinasafelocationassoonaspos-
sible.Donotcontinuedriving.Seeanauthorized
150
AudidealerorauthorizedAudiServiceFacilityfor
assistance.
aSteering:malfunction!Pleasestopvehicle.
Payattentiontodistanceatside
Ifthisindicatorlightturnson andstaysonand
thismessageappears,theall-wheel steering*
mayhavefailed.Morespaceontheroadmaybe
neededatthesideofthevehicle.
Reduceyourspeedandstopthevehicleinasafe
locationwithenoughspaceonthesidesassoon
aspossible.Donotcontinuedriving.Seeanau-
thorizedAudidealerorauthorizedAudiService
Facilityforassistance.
aSteering:malfunction!Youcancontinue
driving
Iftheindicatorlightturnsonandthismessage
appears,thesteeringwheelmaybemoredifficult
tomoveormoresensitivethanusual.Thesteer-
ingwheelmayalsobeturnedtothesidewhen
drivingstraight.
DriveslowlytoanauthorizedAudidealerorau-
thorizedAudiServiceFacilitytohavethe mal-
functioncorrected.
aSteering:malfunction!Adaptdrivingstyle.
Largerturningradius
Iftheindicatorlightturnsonandthismessage
appears,theall-wheelsteering*mayhavefailed.
Pleasenotethatthevehiclewillhavealarger
turningradiusandthestabilitywhenturninga
cornerwillbelikethat ofavehiclewithoutall-
wheelsteering.Thesteeringwheelmayalsobe
turnedtothesidewhendrivingstraight.
DriveslowlytoanauthorizedAudidealerorau-
thorizedAudiServiceFacilitytohavethe mal-
functioncorrected.
G)Tips
—IftheaorElindicatorlightonlystayson
forashorttime,youmaycontinuedriving.
—Foradditionalinformationonall-wheel
steering*,see>page127.

CheckingandFilling

Fuelfillerdooremergencyrelease
Ifthecentrallockingsystemmalfunctions,the
fuelfillerdoorcanbe unlockedmanually.

Fig.257Luggagecompartment:removingthelightcover

LeeeeeerNTT
Fig.258Luggagecompartment:fuelfillerdooremergency
release
Theemergencyreleasemechanismislocatedbe-
hindtherightlightcoverintheluggagecompart-
ment.
>Useascrewdrivertoremovethelightcover
>fig.257.
>Tounlockthefuelfillerdoor,loosen theloop
fromtheretainerandthenpullontheloop
carefully>fig.258>@.
>Pressontheleftsideofthefuelfillerdoorto
openit>page310,fig.255.
©Note
Onlypullontheloopuntilyoufeelresistance.
Youwillnot hearitrelease.Ifyoucontinueto
pull,youcoulddamagetheemergencyre-
leasemechanism.
312

Catalyticconverter
Thevehiclemayonlybedrivenwithunleaded
gasoline,orthecatalyticconverterwillbede-
stroyed.
Neverdriveuntilthetankiscompletelyempty.
Theirregularsupplyoffuelthatresultsfromthat
cancauseenginemisfires.Uncombustedfuel
couldentertheexhaustsystem,whichcould
causeoverheatinganddamagetothecatalytic
converter.
ZAWARNING
Thetemperatureoftheexhaustsystemis
high,bothwhendrivingandafterstopping
theengine.
—Nevertouchtheexhausttailpipesoncethey
havebecomehot.Thiscouldresultinburns.
—Donotparkyourvehicleoverflammable
materialssuchasgrassor leavesbecause
thehightemperatureoftheemissionssys-
temcouldstartafire.
—Donotapplyunderbodyprotectantinthe
exhaustsystemarea,becausethisincreases
theriskoffire.


OnBoardDiagnostic
System(OBD)
TheOn-BoardDiagnosticSystemmonitorsthe
engineandtransmissioncomponentsthatinflu-
enceemissions.
a 88 3 = a
=
Fig.259Footwellonleftsideofthevehicle:connection
portfortheOn-BoardDiagnosticSystem(OBD)

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>

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