OVERHEAT AUDI S4 2019 Owners Manual

Instrumentcluster

Certaininstrumentclustercontentcanalsobe
displayedinthehead-updisplay*>page27.

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

@)Tips
— Depending onvehicleequipment,thein-
strumentillumination(needlesandgauges)
mayturnonwhenthelightsareoffandthe
ignitionisswitchedon.Theilluminationfor
thegaugesreducesautomaticallyandeven-
tuallyturnsoffasbrightnessoutsidein-
creases.Thisfunctionremindsthedriverto
turnthelowbeamsonattheappropriate
time.
—Youcanselecttheunitsusedfortempera-
ture,speed,andothermeasurementsinthe
Infotainmentsystem>page240.
—Ifyourvehicleisstationaryorifyouaredriv-
ingatverylowspeeds,thetemperaturedis-
playedmaybeslightlyhigherthantheac-
tualtemperatureoutsideduetotheheatra-
diatingfromtheengine.
—Attemperaturesbelow41°F(+5°C),a
snowflakesymbolappearsinfront ofthe
temperaturedisplay>A\.
Coolanttemperature
indicator
Thecoolanttemperaturedisplay@>page13,
fig.3or>page13,fig.4onlyfunctionswhen
theignitionisswitchedon.Toreducetheriskof
enginedamage,pleaseobservethefollowing
notesaboutthetemperatureranges.
Coldrange
IfonlytheLEDsatthebottomofthegaugeturn
on,theenginehasnot reachedoperatingtem-
peratureyet.Avoidhighenginespeeds,fullaccel-
eration,andheavyengineloads.
14
Normalrange
Theenginehasreacheditsoperatingtempera-
tureoncetheLEDsuptothecenterofthegauge
turnon.Ifthegindicatorlightintheinstru-
mentclusterdisplayturnson,thecoolanttem-
peratureistoohigh>page22.
@)Note
—Auxiliaryheadlightsandotheraccessoriesin
frontoftheairintakeimpairthecoolingef-
fectofthecoolant.Thisincreasestheriskof
theengineoverheatingduringhighoutside
temperatures andheavyengineload.
—Thefrontspoileralsohelpstodistribute
coolingaircorrectlywhiledriving.Ifthe
spoilerisdamaged,thecoolingeffectwill
beimpairedandtheriskoftheengineover-
heatingwillincrease.SeeanauthorizedAu-
didealerorauthorizedAudiServiceFacility
forassistance.
Tachometer
Thetachometerdisplaystheenginespeedinrev-
olutionsperminute(RPM).
Thebeginningoftheredzoneinthetachometer
indicatesthemaximumpermissibleenginespeed
forallgearsoncetheenginehasbeenbrokenin
andwhenitiswarmeduptooperatingtempera-
ture.Before reachingthiszone,youshouldshift
intothenexthighestgear,selectthe"D/S"selec-
torleverposition,orremoveyourfootfromthe
acceleratorpedal.
@)Note
Theneedleinthetachometer2)>page13,
fig.3or>page13,fig.4mayonlybeinthe
redareaofthegaugeforashorttimeorthere
isariskofenginedamage.Thelocationwhere
theredzonebeginsvariesdependingonthe
engine.
@)Forthesakeoftheenvironment
Upshiftingearlyhelpsyoutosavefuelandre-
ducesoperatingnoise.

8W0012721BG
Instrumentcluster

Fuellevel
Thedisplay>page13,fig.3orpage13,
fig.4onlyfunctionswhentheignitionisswitch-
edon.Whenthedisplayhasreached thereserve
mark,aredLEDturnsonandtheAlindicator
lightturnson>page24.
Forthetankcapacityinyourvehicle,refertothe
TechnicalData>page373.
(@)Note
Neverdriveuntilthetankiscompletelyemp-
ty.Theirregularsupplyoffuelthatresults
fromthatcancauseenginemisfires.Uncom-
bustedfuelwillthenentertheexhaustsys-
tem.Thiscancauseoverheatinganddamage
tothecatalyticconverter.
Odometer

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


Theodometershowsthetotaldistancethatthe
vehiclehasbeendriven.
Malfunctionindicator
Ifthereisamalfunctionintheinstrumentclus-
ter,DEFwillappearinthetripodometerdisplay.
Havethemalfunctioncorrectedassoonaspossi-
ble.

@Tips
Theunitsofmeasurementcanbesetinthe
Infotainmentsystem>page240.
Multifunctionsteering
wheelplus
Appliesto:vehicleswithmultifunctionsteeringwheelplus


Fig.6Driverinformationsystemdisplay

Fig.7Leftsideofmultifunctionsteeringwheel
Requirement:theignitionmustbeswitchedon.
Thedriverinformationsystemcontains multiple
tabs@°fig.6thatdisplayvariousinformation
©.
Thefollowingtabsmaybeavailable,depending
onvehicleequipment:



FirsttabVehiclefunctions>page19
SecondMessages
tab?)
ThirdtabRadio>page157
Media>page157>
15

8W0012721BG
Instrumentcluster

maybehigherifthereisheavyengineloadand
hightemperaturesoutside.Thisisnotacausefor
concernaslongasthe|=>page312or=
=>page312indicatorlightsdonotturnon.
Boostindicator
Appliesto:vehicleswithAudivirtualcockpit
Theboostindicatorisonlydisplayedinthesport
view>page17.
Thecurrentengineload(meaningthecurrent
boostpressure)isindicatedbyabar.
Messages
BRAKE/@)/‘C:/®Brakesystem
Ifthisindicatorlightturnson,thereisamalfunc-
tioninthebrakesystem.
HiT)Brakes:stopvehicleandcheckbrake
fluid level
Stopthevehicleandcheckthebrakefluidlevel.
SeeanauthorizedAudidealerorauthorizedAudi
ServiceFacilityforassistance.
GGit@Brakes:malfunction!Stopvehicle
safely
Iftheindicatorlightturnsonandthismessage
appears,thereisamalfunctioninthebrake brake
system.
1fBES/GJandBialsoturnon,thereisamal-
functionintheABS,ESC,andbrakingdistribu-
tion.
Donotcontinuedriving.SeeanauthorizedAudi
dealerorauthorizedAudiServiceFacilityforas-
sistance>A\.
EG/@Parkingbrake:malfunction!Safely
stopvehicle.Seeowner'smanual
—Iftheindicatorlightandthemessageappear
whenthevehicleisstationary orafterswitch-
ingtheignitionon,checkifyoucanreleasethe
parkingbrake.Ifyoucannotreleasetheparking
brake,seeanauthorizedAudidealerorauthor-
izedAudiServiceFacility.Ifyoucanreleasethe
parkingbrakeandthemessagestillappears,
seeanauthorizedAudidealerorauthorizedAu-
diServiceFacilityimmediatelytohavethe mal-
functioncorrected.
—Iftheindicatorlightandmessageappearwhile
driving,thehillstartassistoremergencybrak-
ingfunctionmaybemalfunctioning.Itmaynot
bepossibletosettheparkingbrakeorrelease
itonceithasbeenset.Donotparkyourvehicle
onhills.SeeanauthorizedAudidealerorau-
thorizedAudiServiceFacilityforassistance.
fieifeBrakepads:wearlimitreached.You
cancontinuedriving.PleasecontactService
Thebrakepadsareworn.Drivetoanauthorized
AudidealerorauthorizedAudiServiceFacilityas
soonas possible tohavethemalfunctioncorrect-
ed.
©Brakesoverheating.PleaseshifttoD
@Brakesoverheating.Pleaseselectagearand
followgearrecommendation
Therewasaheavyloadonthebrakes.Engagea
suitablegear(manualtransmission)or placethe
selectorleverinthe"D/S"position(automatic
transmission)touse theenginebrakingeffect
andreduce theloadonthebrakes.
Brakebooster:limitedfunctionality.Youcan
continuedriving.PleasecontactService
Thereisamalfunctioninthebrakebooster.The
brakeboosterisavailable,butitseffectivenessis
reduced.Brakingbehaviormaybedifferentfrom
howitnormallyfunctionsandthebrakepedal
mayvibrate.DrivetoanauthorizedAudidealeror
authorizedAudiServiceFacilityimmediatelyto
havethemalfunctioncorrected.

Z\WARNING
—Readandfollowthewarningsin
=page309,Workingintheenginecom-
partmentbeforeopeningthehood and
checkingthebrakefluidlevel.
—Ifthebrakesystemindicatorlightdoesnot
turnofforitturnsonwhiledriving,the
brakefluid levelinthereservoiristoolow,
andthisincreasestheriskofanaccident.
Stopthevehicleanddonotcontinuedriv-
ing.SeeanauthorizedAudidealeror

21

Instrumentcluster


authorizedAudiServiceFacilityforassis-
tance.
—Ifthebrakesystemindicatorlightturnson
togetherwiththeABSandESCindicator
lights,theABS/ESCregulatingfunctionmay
bemalfunctioning.Functionsthatstabilize
thevehiclearenolongeravailable.This
couldcausethevehicletoswerve,whichin-
creasestheriskthatthevehiclewillslide.
Donotcontinuedriving.Seeanauthorized
AudidealerorauthorizedAudiServiceFacili-
tyforassistance.

NOK
Tr

(®Electromechanicalparking
IftheZi7,oaindicatorlightturnson,the
parkingbrakewasset.
Ifthe[MM/[indicatorlightflashes,thebrak-
ingforcehasnotbuiltupenoughorithasde-
creased.
Securethevehiclealsobyshifting into
1stgear(manualtransmission)orselectingthe
"P"selectorleverposition(automatictransmis-
sion).Makesuretheindicatorlightisoffbefore
youstartdriving.
wwParkingbrake:malfunction!Pleasecontact
Service
Thereisamalfunctionintheparkingbrake.Drive
toanauthorizedAudidealerorauthorizedAudi
ServiceFacilityimmediatelytohavethemalfunc-
tioncorrected.Donotparkthevehicleonhills,
becauseitcouldroll.
a/{Q)Parkingbrake:warning!Vehicleparked
toosteep
Thereisnotenoughbrakingforce toholdtheve-
hicleinplace.Thebrakeshaveoverheated.The
vehiclecouldrollaway,evenonasmallincline.
&iParkingbrake:applied
Ifthismessageappears,pressthebrakepedal
firstandthenreleasetheparkingbrakeifneces-
sary.
a/Parkingbrake:emergencybraking
Theemergencybrakingfunctionwastriggered.
22
G)Tips
Foradditionalinformationontheparking
brake,see>page82.
erCe
||Turnoffengineandcheckcoolantlevel.See
owner'smanual
Thecoolantlevelistoolow.
Stopdrivingandswitchtheengineoff.Checkthe
coolantlevel>page315.
—Ifthecoolantlevelistoolow,addcoolant
=page316. Onlycontinuedrivingoncethein-
dicatorlightturnsoff.
/_E|Coolanttemperature:toohigh.Letengine
runwhilevehicleisstationary
Lettheenginerunatidleforafewminutesto
cooloff,untiltheindicatorlightturnsoff.
—Iftheindicatorlightdoesnotturnoff,donot
continuedrivingthevehicle.Seeanauthorized
AudidealerorauthorizedAudiServiceFacility
forassistance.

ZAWARNING
—Neveropenthehoodifyoucan seeorhear
steamorcoolantescapingfromtheengine
compartment.Thisincreasestheriskof
burns.Whenyounolongerseeorhear
steamorcoolantescaping,youmayopen
theenginecompartmentwithcaution.
— Theenginecompartmentinanyvehiclecan
beadangerousarea.Stoptheengineandal-
lowitto coolbeforeworkingintheengine
compartment.Alwaysfollowtheinforma-
tionfoundin>page309,Workinginthe
enginecompartment.
C)Note
Donotcontinuedrivingifthegindicator
lightturnsonasthisincreasestheriskofen-
ginedamage.

Instrumentcluster

Thereisamalfunctionintheclutch.Theengine
torque
thatcan betransferredisreduced.You
maycontinuedriving.Avoidusingtheclutchin
thefutureinanywaythatwillplaceaheavyload
onit.Forexample,donotlettheclutchrubwhen
startingonhillsorwhenmaneuveringthevehi-
cle.Theindicatorlightturnsoffoncetheclutchis
fullyoperableagain.
Ifthe|indicatorlightturnson,thehoodlock
isnotlatchedcorrectly.
Stopimmediatelyandclosethehood
=>page310.

ElectronicStabilizationControl(ESC)
IftheBindicatorlightblinkswhiledriving,the
ESCorASR(Anti-SlipRegulation)isactivelyregu-
lating.
IftheBindicatorlightturnson,thesystemhas
switched
theESCoff.Inthiscase,youcanswitch
theignitionoffandthenontoswitchtheESCon
again.Theindicatorlightturnsoffwhenthesys-
temisfullyfunctional.
IftheBindicatorlightturnson,ESCwas
switchedoffusingthe[2]button>page139.


Stabilizationcontrol(ESC/ABS):malfunction!
Seeowner'smanual
IftheBindicatorlampandtheES/assin-
dicatorlampturnonandthismessageappears,
theABSorelectronicdifferentiallockismalfunc-
tioning.ThisalsocausestheESCtomalfunction.
Thebrakesstillfunctionwiththeirnormalpower,
butABSisnotactive.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
@Tips
ForadditionalinformationonESCandABS,
see>page138.
24
BDrivesystem:malfunction!Safelystopvehi-
cle
Thereisamalfunctioninthedrivesystem.The
brakeboosterandthepowersteeringmaystop
working.
Stopthevehicleimmediatelyor assoon
aspossibleand donotcontinuedriving.Havethe
problemcorrectedbyanauthorizedAudidealer
orauthorizedAudiServiceFacility.
BDrivesystem:malfunction!Pleasecontact
Service
Thereisamalfunctioninthedrivesystem.Drive
slowlytoanauthorizedAudidealerorauthorized
AudiServiceFacilitytohavethemalfunctioncor-
rected.

nginespeedlimitation
IftheBiindicatorlightturnson,theenginewill
beautomaticallylimitedtotheRPMdisplayedin
theinstrumentcluster.Thisprotectstheengine
fromoverheating.
Theenginespeedlimitationdeactivatesoncethe
engineisnolongerinthecriticaltemperature
rangeandyouhavereleasedtheacceleratorped-
alonce.
Iftheenginespeedlimitationwasactivatedby
anenginecontrolmalfunction,theBgindicator
lightalsoturnson.Makesuretheenginespeed
doesnotgoabovethespeeddisplayed,forexam-
plewhendownshifting.Drivetoanauthorized
AudidealerorauthorizedAudiServiceFacilityim-
mediatelytohavethemalfunctioncorrected.
fTanksystem
lyPleaserefuel
Iftheindicatorlightturnsonforthefirsttime
andthemessageappears,thereareabout2.1
gallons(8liters)offuelleftinthetank.
lyPleaserefuelimmediately
Iftheindicatorlightturnsonandthismessage
appears,thefueltankisalmostempty.Refuel
thevehicleimmediately.

Instrumentcluster

Youcanstillcontrolallfunctionsthatareinde-
pendentoftherainsensorthroughthewind-
shieldwiperlever.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
{Suspensioncontrol
Appliesto:vehicleswithsuspensioncontrol
18|Suspension:malfunction!Youmaycontinue
driving
Thereisamalfunction.SeeanauthorizedAudi
dealerorauthorizedAudiServiceFacilityforas-
sistance.
beeNatMeleelametale)
Appliesto:vehicleswithallwheeldrive/sportdifferential
3All-wheeldrive:malfunction!Youmaycon-
tinuedriving.PleasecontactService
iT-3|Sportdifferential:malfunction!Pleasecon-
tactService
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
EH]All-wheeldriveoverheating.Pleaseadapt
drivingstyle.Seeowner'smanual
3}Sportdifferential:temperaturetoohigh.
Pleaseadaptdrivingstyle
Thetransmissiontemperaturehasincreasedsig-
nificantlyduetothesportydrivingmanner.Drive
inalesssportymanneruntilthetemperaturere-
turnstothenormalrangeandtheindicatorlight
switchesof.

ZXWARNING
ContactanauthorizedAudidealerorauthor-
izedAudiServiceFacilityiftheallwheeldrive/
sportdifferentialisfaultyormalfunctioning.
Therepairmustbeperformedbytrainedper-
sonnelusingthecorrectoilinordertoensure
safety.

26
ereasercy
IftheaorByindicatorlightblinks,aturnsig-
nalisturnedon.Ifbothindicatorlightsareblink-
ing,theemergencyflashersare on.
Ifanindicatorlightblinkstwiceasfastasusual,
aturnsignalbulbhasfailed.Carefullydrivetoan
authorizedAudidealerorauthorizedAudiService
Facilityimmediatelytohavethe malfunctioncor-
rected.

Assistsystems

>Toswitchthesystemon,pullthelevertoward
youtoposition().
TheGgor88]indicatorlightandthecorre-
spondingmessagewillappearintheinstrument
cluster.
ZXWARNING
Ifthebrakesaremalfunctioning(forexample,
overheating)whilethecruisecontrolsystem
isswitchedon,itmayshutoffautomatically.
Preselectingoractivatingacruisecontrol
Cytst-t)
Appliesto:vehicleswithcruisecontrolsystem


Whenthevehicleisstationary,youcanpreselect
thecruisecontrolspeedoractivatethespeed
whiledriving.
Requirement:thesystemmustbe switchedon.
>Topreselectacruisecontrolspeedwhentheve-
hicleisstationary,tapthelevertoward@)/G)
=>page95,fig.95.
>Toactivatethecruisecontrolspeed,pullthe
levertowardposition@whiledriving,or
>
Tosetthecurrentdrivingspeedasthecruise
controlspeed,pressthebutton(@)onthelever.
Theactivecruisecontrolspeedisindicatedwith
theCRUISE]orklindicatorlightintheinstrument
cluster.
Anadditionalindicatorappearsinthehead-up
display”.
Changingthecruisecontrolspeed
Appliesto:vehicleswithcruisecontrolsystem
>Toincrease ordecreasethecruisecontrolspeed
insmallincrements,tap theleveruptothe
firstleveltoward@/@)>page95,fig.95.
>Toincrease ordecreasethecruisecontrolspeed
inlargerincrements,taptheleveruptothe
secondleveltoward@)/G).
>Toincrease ordecreasethecruisecontrolspeed
continuously,tapandholdtheleveratthefirst
orsecondleveltoward(#)/C).
96
Overridingordeactivatingthecruise
controlspeed
Appliesto:vehicleswithcruisecontrolsystem
Youcanoverride ordeactivatethecruisecontrol
system.Whenyoudeactivatethesystem,your
cruisecontrolspeedwillbestoredand youcan
resumethatspeed.
Requirement:thesystemmustbe switchedon
andactivated.
Overriding
>Totemporarilyoverridethecruisecontrol
speed,presstheacceleratorpedal.
>Onceyoureleasetheacceleratorpedal,thesys-
temwilladjustbacktothestoredcruisecontrol
speed.
Ifyouoverridethecruisecontrolsystemfora
longperiodoftime,thecruisecontrolsystem
willbedeactivated.Thesystemindicatorlight
willturnoffandthecruisecontrolspeedwillbe
stored.
Deactivating
>Todeactivatethecruisecontrolspeed,press
thelevertoward(2)(notlockedintoplace)
=>page95,fig.95.
>Pressthebrakepedal.

Z\WARNING
Restingyourfootontheacceleratorpedal
couldoverridethecruisecontrol.Thiswillpre-
ventbrakinginterventionsby the system.
Seema
Appliesto:vehicleswithcruisecontrolsystem

Whenyouswitchthesystemoffcompletely,the
cruisecontrolspeedwillbedeleted.
Requirement:thesystemmustbe switchedon.
>Toswitchthesystemoff,pressthelevertoward
@(lockedintoplace)>page95,fig.95,or
>Switchtheignitionoff.

8W0012721BG
Assistsystems

Appliesto:vehicleswithcruisecontrolsystem
ICRUISE|/3)Speedcontrolsystem:currentlyun-
available.Seeowner'smanual
Iftheindicatorlightturnsonandthismessage
appears,thecruisecontrolsystemhasbeendeac-
tivated.Thereisatemporarymalfunction,forex-
amplethebrakesareoverheating.Switchthe
cruisecontrolsystemonagainlater.
Camera-basedtraffic
signrecognition
Appliesto:vehicleswith camera-basedtrafficsignrecognition

Fig.96Instrumentcluster:trafficsignrecognition

B4M-0090


Fig.97Windshield:camerawindowfortrafficsignrecog-
nition
Trafficsignrecognitionassistsyouwhendriving
bydisplayingdetectedspeedlimitsorsignspro-
hibitingpassingintheinstrumentclusterdisplay
>fig.96.Withinthelimitsofthesystem,thele-
galspeedlimitsinschoolzonesaredetectedand
displayed.
Generalinformation
Trafficsignrecognitioncandetectstandard
speedlimitsignsthatarewithinthecamera'svis-
ualfield.Withassistancefromnavigationdata,
detectedspeedlimitsareevaluatedandshownin
thedisplay.Thetrafficsignforthecurrentde-
tectedspeedlimitwillblinkinthedisplayifyou
exceedthewarningthresholdsetintheInfotain-
mentsystem>page98.
Thetrafficsignrecognitionissubjecttocertain
systemlimitationsandmaybeunavailableoron-
lypartiallyavailableinthefollowingsituations:
—Whenvisibilityispoor,suchasinsnow,rain,
fogorheavyspray
—Whenthereisglare,forexamplefromoncom-
ingtrafficorthesun
—Athighspeeds
—Ifthecamera'svisualfield>fig.97iscovered,
forexamplebydirtorstickers.Forinformation
oncleaning,see>page342.
—Ifthetrafficsigns arecompletelyorpartially
covered,forexamplebytrees,snow,dirtor
othervehicles
—ifspeedtrafficsignsdonotconformtothe
standards
—Iftrafficsigns aredamagedorbent
—Iftrafficsigns aredisplayedonsignholders
withelectronicsigns
—ifthetrafficsignsortheconfigurationofthe
roadhavechanged(navigationdataisnolonger
up-to-date)

ZAWARNING
Payattentiontotrafficandtheareaaround
yourvehiclewhentrafficsignrecognitionis
turnedon.Thetrafficsignsinstalledonthe
roadalwaystakeprecedenceoverthedisplay.
Thedriverisalwaysresponsibleforassessing
thetrafficsituation.
— Undersomecircumstances,trafficsignrec-
ognitionmaynotdetecttrafficsignscorrect-
lyordetectthematall.Asaresult,thesys-
temmaynotdisplaythecorrectspeedlimit
oranyspeedlimit.
—Trafficsignrecognitiondoesnotadaptyour
vehicle'sspeedtomatchthespeedlimit!
—Thedisplayintheinstrumentclusteris
basedontheunitsofmeasurementusedfor
speedinthe countrywherethevehicleisbe-
ingoperated.Asaresult,thedisplay50in

97

IntelligentTechnology

Brakebooster
Thebrakeboosteramplifiesthepressureyouap-
plytothebrakepedal.

ZAWARNING
—Onlyapplythebrakesforthepurposeof
cleaningthebrakesystemwhenroadand
trafficconditionspermit.Youmustnoten-
danger
otherroadusersandincreasethe
riskofanaccident.
—Duetotheriskofinjury,onlyhave anau-
thorizedAudidealerorauthorizedAudi
ServiceFacilityworkonthebrakesystem.
Incorrectrepairscouldimpair thefunction.
—Neverletthevehiclerollwhiletheengineis
stoppedbecausethisincreasestheriskofan
accident.

@)Note
—Neverletthe brakes“rub”bypressingthe
pedallightlywhenbrakingisnotactually
necessary.Thiscauses thebrakestoover-
heatandincreasesbrakingdistanceand
causeswear.
—Beforedrivingdownhillalongdistanceona
steephill,decreaseyourspeedandselecta
lowergear.Thismakesuseoftheengine
brakingeffectandreducestheloadplaced
onthebrakes.Ifyouneedtobrakeaddition-
ally,brakeinintervalsandnotcontinuously.
@Tips
—Ifthebrakeboosterisnotworking,you
mustpressthebrake pedalwithmuchmore
forcethannormal.
—Ifyouretrofityourvehiclewithafrontspoil-
er,wheelcoversorsimilaritems,makesure
thattheairflowtothefrontwheelsisnot
obstructed.Otherwisethebrakesystemcan
overheat.
142
Electromechanical
steering,Dynamic
steering
Theelectromechanicalsteeringsupportsthe
driver'ssteeringmovements.
Powersteeringadaptselectronicallybasedon
thevehiclespeed.
Indicatorlightsandmessages
aSteering:malfunction!Pleasestopvehicle
Ifthisindicatorlightturnsonandstaysonand
thismessageappears,thepowersteeringmay
havefailed.
Stopthevehicleinasafelocationassoonaspos-
sible.Donotcontinuedriving.Seeanauthorized
AudidealerorauthorizedAudiServiceFacilityfor
assistance.
aSteering:malfunction!Youcancontinue
driving
Iftheindicatorlightturnsonandthismessage
appears,thesteeringwheelmaybemoredifficult
tomoveormoresensitivethanusual.Thesteer-
ingwheelmayalsobeturnedtothesidewhen
drivingstraight.
DriveslowlytoanauthorizedAudidealerorau-
thorizedAudiServiceFacilitytohavethe mal-
functioncorrected.
Dynamicsteering:correctingsteeringwheel
position
Iftheindicatorlightturnsonandthismessage
appears,thedynamicsteering”isreinitializing.
Thesteeringwheelwillbeeasytomoveafter
startingtheengine.Reinitializationmightbe
necessaryifthesteeringwheelwasmovedwhile
theenginewasswitchedoff.Thedisplayturnsoff
iftheinitializationwassuccessful.
(i)Tips
—Iftheaorlindicatorlightonlystayson
forashorttime,youmaycontinuedriving.
— Thedynamicsteeringstabilitysystems
=>page138arenotavailableintheeventof
asystemmalfunction.

CheckingandFilling

Fuelfillerdooremergencyrelease
Ifthecentrallockingsystemmalfunctions,the
fuelfillerdoorcanbe unlockedmanually.

Fig.251Rightsidetrimpanelintheluggagecompart-
ment:openingthetrimpanel


Fig.252Luggagecompartment:fuelfillerdooremergency
release
Theemergencyopeningmechanismislocated
behindtherightsidetrimpanelintheluggage
compartment.
>Openthecoverinthesidepanel>fig.251.
>Tounlockthefuelfillerdoor,loosen theloop
fromtheretainerandthenpullontheloop
carefully>fig.252>@.
>Pressontheleftsideofthefuelfillerdoorto
openit>page306,fig.249.
®Note
Onlypullontheloopuntilyoufeelresistance.
Youwillnothearitrelease.Ifyoucontinueto
pull,youcoulddamagetheemergencyre-
leasemechanism.
308

Catalyticconverter
Thevehiclemayonlybedrivenwithunleaded
gasoline,orthecatalyticconverterwillbede-
stroyed.
Neverdriveuntilthetankiscompletelyempty.
Theirregularsupplyoffuelthatresultsfromthat
cancauseenginemisfires.Uncombustedfuel
couldentertheexhaustsystem,whichcould
causeoverheatinganddamagetothecatalytic
converter.

ZAWARNING
Thetemperatureoftheexhaustsystemis
high,bothwhendrivingandafterstopping
the
engine.
—Nevertouchtheexhausttailpipesoncethey
havebecomehot. Thiscouldresultinburns.
—Donotparkyourvehicleoverflammable
materialssuchasgrassorleavesbecause
thehightemperatureoftheemissionssys-
temcouldstartafire.
—Donotapplyunderbodyprotectantinthe
exhaustsystemarea,becausethisincreases
theriskoffire.

OnBoardDiagnostic
System(OBD)
TheOnBoardDiagnosticSystemmonitorsthe
engineandtransmissioncomponentsthatinflu-
enceemissions.

Fig.253Footwellonleftside ofthevehicle:connection
portfortheOnBoardDiagnosticSystem(OBD)