light AUDI TT COUPE 2019 Repair Manual

Safedriving

>Take frequentbreaksonlongtrips.Donotdrive
formorethantwohoursatastretch.
>DoNOTdrivewhenyouaretired,underpres-
sureor whenyouarestressed.

Z\WARNING
Impaireddrivingsafetyincreasestheriskof
seriouspersonalinjuryanddeathwhenevera
vehicleisbeingused.

>Graspthetopofthesteeringwheelwithyour
elbow(s)slightlybent.
>Fastenandwearsafetybeltscorrectly
>page184.
>Always keepbothfeetinthefootwell so that
youareincontrolofthevehicleatalltimes.
Fordetailedinformationonhowtoadjustthe
driver'sseat,see>page40,Frontseats.


Correctpassenger
seatingpositions
Properseatingpositionforthedriver
Theproperdriverseatingpositionisimportant
forsafe,relaxeddriving.

BFV-0183


Fig.141Correct seatingposition
Foryourownsafetyandtoreducetheriskofin-
juryinthe eventofanaccident,werecommend
thatyouadjustthedriver'sseattothefollowing
position:
>Adjustthedriver'sseat so thatyoucaneasily
pushthepedalsallthewaytothefloorwhile
keepingyourknee(s)slightlybent>A\.
>Adjusttheangleoftheseatbacksothatitisin
anuprightpositionsothatyour backcomesin
fullcontactwithitwhenyoudrive.
>Adjustthesteeringwheelsothatthereisadis-
tanceofatleast10in(25cm)betweenthe
steeringwheelandyourbreastbone>fig.141.
Ifnotpossible,seeyourauthorizedAudideal-
ershipaboutadaptiveequipment.
>Adjust thesteeringwheelso thatthesteering
wheelandairbagcoverpointsatyourchestand
notatyourface.
176
Z\WARNING
Driverswhoareunbelted,outofpositionor
tooclose totheairbagcanbeseriouslyinjured
by anairbagasitunfolds.To helpreduce the
riskofseriouspersonalinjury:
—Alwaysadjustthedriver'sseatandthe
steeringwheelsothatthereareatleast
10in(25cm)betweenyourbreastboneand
thesteeringwheel.
—Alwaysadjustthedriver'sseatandthe
steeringwheelsothatthereareatleast4in
(10cm)betweenthekneesandthe lower
partoftheinstrumentpanel.
—Alwaysholdthesteeringwheelontheout-
sideofthesteeringwheelrimwithyour
handsatthe9o'clockand3o'clockposi-
tionstohelpreducetheriskofpersonalin-
juryifthedriver'sairbaginflates.
—Neverholdthesteeringwheelatthe
12o'clockpositionorwithyourhandsat
otherpositionsinsidethesteeringwheel
rimoronthesteeringwheelhub.Holding
the
steeringwheelthewrongwaycancause
seriousinjuriestothehands,armsandhead
ifthedriver'sairbaginflates
—Pointingthesteeringwheeltowardyour
facedecreasestheabilityofthesupplemen-
taldriver'sairbagtoprotectyouinacolli-
sion.
—Alwayssitinanuprightpositionandnever
leanagainstor placeanypartofyourbody
tooclosetotheareawheretheairbagsare
located.
—Beforedriving,alwaysadjustthefront seats
properlyandmakesurethatallpassengers

areproperlyrestrained.

Safetybelts

Safetybelts
Generalnotes
Alwayswearsafetybelts!
Wearingsafetybeltscorrectlysaveslives!
Thischapterexplainswhysafetybeltsareneces-
sary,howtheyworkandhowtoadjustandwear
themcorrectly.
>Readalltheinformationthatfollowsandheed
alloftheinstructionsandWARNINGS.

ZA\WARNING
Notwearingsafetybeltsorwearingthemim-
properlyincreasestheriskof seriouspersonal
injuryanddeath.
—Safetybeltsarethesinglemosteffective
meansavailabletoreducetheriskofserious
injuryanddeathinautomobileaccidents.
Foryourprotectionandthat ofyourpassen-
gers,alwayscorrectlywearsafetybelts
whenthevehicleismoving.
—Pregnantwomen,injured,orphysicallyim-
pairedpersonsmustalsousesafetybelts.
Likeallvehicleoccupants,theyaremore
likelytobeseriouslyinjurediftheydonot
wearsafetybelts.Thebestwaytoprotecta
fetusistoprotectthe mother-throughout
theentirepregnancy.

Numberofseats
Yourvehiclehastwoseatingpositionsinthe
frontandtwoheight-limitedseatingpositionsin
therear.Eachseatingpositionhasasafetybelt.
Therearseatareadoesnothaveenoughroomfor
passengersofallsizes.Forreasonsofsafety,no
persontallerthan4ft9in(57in/1.45m)should
everrideintherearseatarea.

ZAWARNING
Notwearingsafetybeltsorwearingthemim-
properlyincreasestheriskof seriouspersonal
injuryanddeath.
—Neverstrapmorethanoneperson,including
smallchildren,intoanybelt.Itisespecially

180

dangeroustoplaceasafetybeltoverachild
sittingonyourlap.
—Neverletmorepeoplerideinthevehicle
thantherearesafetybeltsavailable.
—Besureeveryoneridinginthevehicleis
properlyrestrainedwithaseparatesafety
beltorchildrestraint.
—Personstallerthan4ft9in(57in/1.45m)
aswellaschildreninboosterseatswhoare
tooclosetotherearwindowandroofcan
suffersevereheadandneckinjurieswhen
therearlidisclosedorinacrash.
— Theminimumclearancebetweenthepas-
senger’sheadsandtherearwindowmust
never-underanycircumstances-beless
than1in(2.5cm)whenthepassengerssit
fullyupright.
—Alwaysmakesurethatrearseatpassengers

cannot bestruck whentherearlidisclosed.
SiayaaEUMeLal
Yourvehiclehasawarningsystemforthedriver
andfrontseatpassengertoremindyouabout
theimportanceofbuckling-up.


BFV-0297

Fig.142Safetybeltwarninglightintheinstrumentclus-
ter-enlarged
Beforedrivingoff,always:
>Fastenyoursafetybeltandmakesureyouwear
itproperly.
>Makesurethatyourpassengersalsobuckleup
and
properlyweartheirsafetybelts.
>Protectchildrenwitha childrestraintsystem
appropriateforthesizeandage.
Thewarninglightintheinstrumentcluster
lightsupwhentheignitionisswitchedonasa re-
mindertofastenthesafetybelts.Inaddition,>

8S1012721BA
Safetybelts

youwillhearawarningtoneforacertainperiod
oftime.
Fastenyoursafetybeltandmakesurethatyour
passengersalsoproperlyputontheirsafety
belts.


—Safetybeltsarethesinglemosteffective
meansavailabletoreducetheriskofserious
injuryanddeathinautomobileaccidents.
Foryourprotectionandthat ofyourpassen-
gers,alwayscorrectlywearsafetybelts
whenthevehicleismoving.
—Failuretopayattentiontothewarninglight
thatcomeon,couldlead topersonalinjury.

Whysafetybelts?
eelmeleelameLwmelmale)
Frontalcrashescreateverystrongforcesforpeo-
pleridinginvehicles.

B4H-0465,






B4H-0466



Fig.144Thevehiclecrashesintothewall
Thephysicalprinciplesaresimple.Boththevehi-
cleandthepassengerspossessenergywhichvar-
ieswithvehiclespeedandbodyweight.Engi-
neerscallthisenergy“kineticenergy.”
Thehigherthespeedofthevehicleandthe
greaterthevehicle'sweight,themoreenergy
thathastobe“absorbed”inthecrash.
Vehiclespeedisthemostsignificantfactor.Ifthe
speeddoublesfrom15to30mph(25to50
km/h), theenergyincreases4times!
Becausethepassengersofthisvehiclearenotus-
ingsafetybelts>fig.143,theywillkeepmoving
atthesamespeedthevehiclewasmovingjust
beforethecrash,untilsomethingstopsthem-
here,thewall>fig.144.
Thesameprinciplesapplytopeoplesittingina
vehiclethatisinvolvedinafrontalcollision.Even
atcityspeedsof20to30mph(30to50km/h),
theforces actingonthebodycanreachoneton
(2,000lbs,or1,000kg)ormore.Athigher
speeds,theseforcesareevengreater.
Peoplewhodonotusesafetybeltsarealsonot
attachedtotheirvehicle.Inafrontalcollision
theywillalsokeepmovingforwardatthespeed
theirvehiclewastravellingjustbeforethecrash.
Ofcourse,thelawsofphysicsdon'tjustapplyto
frontalcollisions,theydeterminewhathappens
inallkindsofaccidentsandcollisions.
181

Safetybelts


—Alwayskeepthebeltsclean.Dirtybeltsmay
notworkproperlyandcanimpairthefunc-
tionoftheinertiareel>tableInterior
cleaningonpage272.

Safetybelts
eetLiamhay
Safetyfirst-everybodybuckleup!

|
B4H-0462

Fig.148Beltbuckleandtongueonthedriver'sseat
Toprovidemaximumprotection,safetybelts
mustalways bepositionedcorrectlyonthewear-
er'sbody.
>Adjustthefrontseatproperly>page40,Front
seats.
>Makesuretheseatbackoftherearseatbenchis
inanuprightpositionandsecurelylatchedin
placebeforeusingthebelt>/\.
>Pullthesafetybeltevenlyacrossthechestand
pelvis>fig.148,>A\.
> Insertthetongueintothecorrectbuckle of
yourseatuntilyouhearitlatchsecurely.
>Pullonthebelttomakesurethatitissecurely
latchedinthebuckle.
Automaticsafetybeltretractors
Everysafetybeltisequippedwithanautomatic
beltretractorontheshoulderbelt.Thisfeature
locksthebeltwhenthebeltispulledoutfast,
duringhardbrakingandinanaccident.Thebelt
mayalsolockwhenyoudriveupordownasteep
hillorthroughasharpcurve.Duringnormaldriv-
ingthebeltletsyoumovefreely.
Safetybeltpretensioners
Safetybeltswithpretensionershelptotighten
thesafetybeltandremoveslackwhenthepre-
184
tensionersareactivated>page186.Thefunc-
tionofthepretensionerismonitoredbyawarn-
inglight>page18.
Convertiblelockingretractor
Everysafetybeltexcepttheoneonthedriver
seatisequippedwithaconvertiblelockingretrac-
torthatmustbeusedwhenthesafetybeltis
usedtoattachachildseat.Besuretoreadthe
importantinformationaboutthisfeature
=>page223.

Z\WARNING
Improperlypositionedsafetybeltscancause
seriousinjuryinanaccident>page185,
Safetybeltposition.
—Safetybelts offeroptimumprotectiononly
whentheseatbackisuprightandbeltsare
properlypositionedonthebody.
—Alwaysmakesurethattherearseatbackrest
issecurelylatchedwhenever therearsafety
beltisbeingused.Ifthebackrestisnotse-
curelylatched,thepassengerwillmovefor-
wardwiththebackrestduringsuddenbrak-
ing,inasuddenmaneuverandespeciallyin
acrash.
—Neverattachthesafetybelt tothe buckle
foranotherseat.Attachingthebelttothe
wrongbucklewillreducesafetybelteffec-
tivenessandcancauseseriouspersonalin-
jury.
—Apassengerwhoisnotproperlyrestrained
canbeseriouslyinjuredbythesafetybeltit-
selfwhenitmovesfromthestrongerparts
ofthebodyintocriticalareasliketheabdo-
men.
—Alwayslocktheconvertiblelockingretractor
whenyouaresecuringachildseatintheve-
hicle>page225.

G)Tips
Forinformationonsafetybeltpretensioners,
referto>page186.

Airbagsystem

TheAdvancedAirbagSysteminyourvehiclehas
beencertifiedtocomplywiththerequirements
ofUnitedStatesFederalMotorVehicleSafety
Standard(FMVSS)208,aswellasCanadaMotor
VehicleSafetyStandard(CMVSS)208asapplica-
bleatthetimeyourvehiclewasmanufactured.
Accordingtorequirements,thefrontAdvanced
AirbagSystemonthepassengersidehasbeen
certifiedfor“suppression”forinfantsofabout
12montholdandyoungerandfor“lowriskde-
ployment”forchildrenaged3 to6yearsold(as
definedinthestandard).
ThePASSENGERAIRBAGOFF#;lightinthe
headlinertellsyouwhenthefrontAdvancedAir-
bagonthepassengersidehasbeenturnedoffby
theelectroniccontrolunit.
Eachtimeyouturnontheignition,thePASSEN-
GERAIRBAGOFF3;ON@lightwillcomeon
forafewsecondsand:
—PASSENGERAIRBAGOFF3;willcomeonif
thefrontpassengerseatisnotoccupied,
—PASSENGERAIRBAGOFF3;willcomeonif
theelectricalcapacitancemeasuredbytheca-
pacitivepassengerdetectionsystemforthe
frontpassengerseatequalsthecombinedca-
pacitanceofaninfantuptoaboutoneyearof
ageandoneoftherearward-facingorforward-
facingchildrestraintslistedinFederalMotor
VehicleSafetyStandard208withwhichtheAd-
vancedAirbagSysteminyourvehiclewascerti-
fied.Foralistingofthechildrestraintsthat
wereusedtocertifyyourvehicle'scompliance
withtheU.S.SafetyStandard>page214.
—PASSENGERAIRBAGOFF3;willcomeonif
thereisasmallchildorchildrestraintonthe
frontpassengerseat,
—PASSENGERAIRBAGON@willgooffifthe
frontpassengerseatisoccupiedby anadultas
registeredbythecapacitivepassengerdetec-
tionsystem>page199,MonitoringtheAd-
vancedAirbagSystem.
ThePASSENGERAIRBAGOFF¥;lightcomeson
whenelectricalcapacitanceregisteredonthe
frontpassengerseatisequalto orlessthanthe
combinedcapacitanceofatypical1year-oldin-
fantand oneoftherearward-facingorforward-
facingchildrestraintslistedinFederalMotorVe-
190
hicleSafetyStandard208withwhichtheAd-
vancedAirbagSysteminyourvehiclewascerti-
fied.
Ifthetotalelectricalcapacitanceregisteredon
thefrontpassengerseatismorethanthat ofa
typical1year-oldchildbutlessthantheweight
ofasmalladult,thefrontairbagonthepassen-
gersidecandeploy(thePASSENGERAIRBAG
OFF%;lightdoesnotcomeon).
IfthePASSENGERAIRBAGOFF3%;lightdoes
notcomeon,thefrontairbagonthepassenger
sidehasnotbeenturnedoffbytheelectronic
controlunitandcandeployifthecontrolunit
senses animpactthatmeetstheconditionsstor-
edinitsmemory.
Forexample,theairbagmaydeployif:
—asmallchildthatisheavierthanatypical1
year-oldchildisonthefrontpassengerseat(re-
gardlessofwhetherthechildisinoneofthe
childsafetyseatslisted>page214),or
—achildwhohasoutgrownchildrestraintsison
thefrontpassengerseat.
Ifthefrontpassengerairbagisturnedoff,the
PASSENGERAIRBAGOFF%;lightcomesonin
theheadlinerandstayson.
Ifthefrontpassengerairbagdeploys,theFederal
Standardrequirestheairbagtomeetthe“low
risk”deploymentcriteriatoreducetheriskofin-
jurythroughinteractionwiththeairbag.“Low
risk”deploymentoccursinthosecrashesthat
takeplaceatlowerdecelerationsasdefinedin
theelectroniccontrolunit>page200,PASSEN-
GERAIRBAGOFF#¥;ON®light.
Alwaysremember,achildseatorinfantcarrier
installedonthefrontseatmaybestruckand
knockedoutofpositionby therapidlyinflating
passenger'sairbaginafrontalcollision.Theair-
bagcouldgreatlyreducetheeffectivenessofthe
childrestraintandevenseriouslyinjurethechild
duringinflation.
Forthisreason,andbecausethebackseatisthe
safest placeforchildren-whenproperlyrestrain-
edaccordingtotheirageandsize-westrongly
recommendthatchildrenalwayssitintheback
seat>page212,Childsafety.

8S1012721BA
Airbagsystem


ZA\WARNING
Achildinarearward-facingchildseatinstal-
ledonthefrontpassengerseatwillbeseri-
ouslyinjuredandcanbekilledifthefrontair-
baginflates-evenwithanAdvancedAirbag
System.
—Theinflatingairbagwillhitthechildseator
infantcarrierwithgreatforceandwill
smashthechildseatandchildagainstthe
backrest,center armrest,doororroof.
—Alwaysinstallrear-facingchildseatsonthe
rearseat.
—Ifyoumustinstallarearwardfacingchild
seatonthefrontpassengerseatbecauseof
exceptionalcircumstancesandthePASSEN-
GERAIRBAGOFF#;lightdoesnotcomeon
andstayon,immediatelyinstalltherear-
facingchildseatinarearseatingposition
andhavetheairbagsysteminspectedby
yourAudidealer.
—Forward-facingchildseatsinstalledonthe
frontpassenger'sseatmayinterferewith
thedeploymentoftheairbagandcauseseri-
ouspersonalinjurytothechild.
so thatthesafetybeltwillbeproperlyposi-
tioned.
—MakesurethatthePASSENGERAIRBAG
OFF7%;lightcomesonandstaysonallthe
timewhenevertheignitionisswitchedon.



Z\WARNING
If,inexceptionalcircumstances,youmustin-
stallaforward-facingchildrestraintonthe
frontpassenger'sseat:
—Alwaysmakesuretheforward-facingseat
hasbeendesignedandcertifiedbyitsmanu-
facturerforuseonafrontseatwithapas-
sengerfrontandsideairbag.
—Neverputtheforward-facingchildrestraint
upagainstorverynear theinstrumentpan-
el.
—Alwaysmovethefrontpassengerseattothe
highestpositionintheupanddownadjust-
mentrangeandmoveitbacktotherear-
mostpositionintheseat'sforeandaftad-
justmentrange,asfarawayfromtheairbag
aspossible,beforeinstallingtheforward-
facingchildrestraint.
—Alwaysmakesurethatthesafetybeltupper
anchorageisbehindthechildrestraintand
notnexttoorinfrontofthechildrestraint
ZA\WARNING
To reducetheriskofseriousinjury,makesure
thatthePASSENGERAIRBAGOFF#;light
willbedisplayedwheneverachildrestraintis
installedonthefrontpassengerseatandthe
ignitionisswitchedon.
—IfthePASSENGERAIRBAGOFF%;light
doesnotstayon,performthechecksdescri-
bed>page199,MonitoringtheAdvanced
AirbagSystem.
—Takethechildrestraint offthefrontpassen-
gerseatandinstallitproperlyatoneofthe
rearseatpositionsifthePASSENGERAIR
BAGOFF#¥%;lightdoesnotstayon.
—Havetheairbagsysteminspectedbyyour
Audidealerimmediately.
—Alwayscarefullyfollowinstructionsfrom
childrestraintmanufacturerswheninstal-
lingchildrestraints.



ZA\WARNING
If,inexceptionalcircumstances,youmustin-
stallaforwardorrearward-facingchildre-
straintonthefrontpassenger'sseat:
—Improperinstallationofchildrestraintscan
reducetheireffectiveness orevenprevent
themfromprovidinganyprotection.
—Animproperlyinstalledchildrestraintcan
interferewiththeairbagasitdeploysand
seriouslyinjureorevenkillthechild-even
withanAdvancedAirbagSystem.
—Alwayscarefullyfollowthemanufacturer's
instructionsprovidedwiththechildseator
carrier.
—Alwaysmakesurethatthereisnothingon
thefrontpassengerseatthatwillcausethe
capacitivepassengerdetectionsystemin
theseattosignaltotheAirbagSystemthat
theseatisoccupiedbyapersonwhenitis
not,ortosignalthatitisoccupiedbysome-
onewhoisheavierthanthepersonactually

191

Airbagsystem

—achilduptoaboutoneyearofageisrestrained
onthefrontpassengerseatinoneoftherear-
facing orforward-facinginfantrestraintslisted
inFederalMotorVehicleSafetyStandard208
withwhichtheAdvancedAirbagSysteminyour
vehiclewascertified.Foralistingofthechild
restraintsthatwereusedtocertifyyourvehi-
cle'scompliancewiththeUSSafetyStandard
=>page214,
—Whenapersonisdetectedonthefrontpassen-
gerseat thathasanelectricalcapacitancethat
ismorethanthetotalelectricalcapacitanceof
achildthatisabout1yearoldrestrainedinone
oftherear-facingorforward-facinginfantre-
straints(listedinFederalMotorVehicleSafety
Standard208withwhichtheAdvancedAirbag
Systeminyourvehiclewascertified),thefront
airbagonthepassengersidemayormaynot
deploy.
ThePASSENGERAIRBAGOFF3%;lightcomeson
whentheelectroniccontrolunitdetectsatotal
electricalcapacitanceonthefrontpassengerseat
thatrequiresthefrontairbagtobeturnedoff.If
thePASSENGERAIRBAGOFF#;lightdoesnot
comeon,thefrontairbagonthepassengerside
has notbeenturnedoffby thecontrolunitand
candeployifthecontrolunitsenses animpact
thatmeetstheconditionsstoredinitsmemory.
Ifthetotalelectricalcapacitanceregisteredon
thefrontpassengerseatismorethanthatofa
typical1year-old,butlessthantheweightofa
smalladult,thefrontairbagonthepassenger
sidemaydeploy(thePASSENGERAIRBAGOFF
#;lightdoesnotcomeon).
Forexample,theairbagmaydeployif:
—asmallchildthatisheavierthanatypical1
year-oldchildisonthefrontpassengerseat(re-
gardlessofwhetherthechildisinoneofthe
childseatslisted>page214),
—achildwhohasoutgrownchildrestraintsison
thefrontpassengerseat.
Ifthefrontpassengerairbagisturnedoff,the
PASSENGERAIRBAGOFF#;lightinthehead-
linerwillcomeonandstayon.
Ifthefrontpassengerairbagdeploys,theFederal
Standardrequirestheairbagtomeetthe“Low
194
risk”deploymentcriteriatohelpreducetherisk
ofinjurythroughinteractionwiththeairbag.
“Lowrisk”deploymentoccursinthosecrashes
that takeplaceatlowerdecelerationsasdefined
intheelectroniccontrolunit>page199.
Alwaysremember:Eventhoughyourvehicleis
equippedwithAdvancedAirbags,thesafest place
forchildrenisproperlyrestrainedontheback
seat.Pleasebesuretoreadtheimportantinfor-
mation
inthesectionsthatfollowandbesureto
heedalloftheWARNINGS.

Z\WARNING
To reducetheriskofinjurywhenanairbagin-
flates,alwayswearsafetybeltsproperly.
—Ifyouareunrestrained,leaningforward,sit-
tingsidewaysoroutofpositioninanyway,
yourriskofinjuryismuchhigher.
—Youwillalsoreceiveseriousinjuriesand
couldevenbekilledifyouareupagainstthe
airbagortooclosetoitwhenitinflates-
evenwithanAdvancedAirbag>page188.

ZAWARNING
Achildinarearward-facingchildseatinstal-
ledonthefrontpassengerseatwillbeseri-
ouslyinjuredandcanbekilledifthefrontair-
baginflates-evenwithanAdvancedAirbag
System.
—AlthoughtheAdvancedAirbagSystemin
yourvehicleisdesignedtoturnoffthefront
airbagwhenarearward-facingchildre-
strainthasbeeninstalledonthefront pas-
sengerseat,nobodycanabsolutelyguaran-
teethatdeploymentisimpossibleinallcon-
ceivablesituationsthatmayhappenduring
theusefullife ofyourvehicle.
— Theinflatingairbagwillhitthechildseator
infantcarrierwithgreatforceandwill
smashthechildseatandchildagainstthe
backrest,center armrest,door,orroof.
—Alwaysinstallrearward-facingchildre-
straintsontherearseat.
—Ifyoumustinstallarearwardfacingchild
seatonthefrontpassengerseatbecauseof
exceptionalcircumstancesandthePASSEN-

GERAIRBAGOFF4;lightdoesnotcomeon

8S1012721BA
Airbagsystem


andstayon,immediatelyinstalltherear-
facingchildseatinarearseatingposition
andhavetheairbagsysteminspectedby
yourAudidealer.


ZA\WARNING
If,inexceptionalcircumstances,youmustin-
stallaforward-facingchildrestraintonthe
frontpassenger'sseat:
—Alwaysmakesuretheforward-facingseat
hasbeendesignedandcertifiedbyitsmanu-
facturerforuseonafrontseatwithapas-
sengerfrontandsideairbag.
—Neverputtheforward-facingchildrestraint
upagainstorverynear theinstrumentpan-
el.
—Alwaysmovethefrontpassengerseattothe
highestpositionintheup anddownadjust-
mentrangeandmoveitbacktotherear-
mostpositionintheseat'sforeandaftad-
justmentrange,asfarawayfromtheairbag
aspossible,beforeinstallingtheforward-
facingchildrestraint.
—Alwaysmakesurethatthesafetybeltupper
anchorageisbehindthechildrestraintand
notnexttoorinfrontofthechildrestraint
sothatthesafetybeltwillbeproperlyposi-
tioned.
—Alwaysmakesurethatthereisnothingon
thefrontpassengerseatthatwillcausethe
capacitivepassengerdetectionsystemin
theseattosignaltotheAirbagSystemthat
theseatisoccupied byapersonwhen itis
not,ortosignalthatitisoccupiedbysome-
onewhoisheavierthanthepersonactually
sittingontheseat.Thepresenceofaddi-
tionalobjectscouldcausethepassenger
frontairbagtobeturnedonwhenitshould
beoff,orcouldcause theairbagtoworkina
waythatisdifferentfromthewayitwould
haveworkedwithouttheobjectontheseat.
—MakesurethatthePASSENGERAIRBAG
OFF%;lightcomesonandstaysonallthe
timewhenever theignitionisswitchedon.

AdvancedAirbagSystemcomponents
Thefrontpassengerseatinyourvehiclehasalot
ofveryimportantparts oftheAdvancedAirbag
Systeminit.Theseparts includethecapacitive
passengerdetectionsystem,wiring,brackets,
andmore.Thecontrolunitmonitorsthesystem
onthefrontpassengerseatwhentheignitionis
switchedonandturnstheairbagindicatorlight
onwhenamalfunctionintheoneofthesystem
componentsisdetected>page200.Becausethe
frontpassengerseatcontainsimportantpartsof
theAdvancedAirbagSystem,youmusttakecare
to
preventitfrombeingdamaged.Damageto
theseatmaypreventtheAdvancedAirbagSys-
temforthefrontpassengerseatfromdoingits
job inacrash.
ThefrontAdvancedAirbagSystemconsists
ofthefollowing:
—Crashsensorsinthefrontofthevehiclethat
measurevehicleacceleration/decelerationto
provideinformationtotheAdvancedAirbag
Systemabouttheseverityofthecrash.
—Anelectroniccontrolunit,withintegrated
crashsensorsforfrontandsideimpacts.The
controlunit“decides”whethertofirethefront
airbagsbasedontheinformationreceivedfrom
thecrashsensors.Thecontrolunitalso“de-
cides”whetherthesafetybeltpretensioners
shouldbeactivated.
—AnAdvancedAirbagwithgasgeneratorforthe
driver insidethesteeringwheelhub.
—AnAdvancedAirbagwithgasgeneratorinside
theinstrumentpanelforthefrontpassenger.
— Acapacitivepassengerdetectionsystemunder-
neaththefrontpassengerseatcover.Thissys-
temmeasurestheelectricalcapacitanceofthe
personintheseat.Theinformationregistered
issentcontinuouslytotheelectroniccontrol
unit toregulatedeploymentofthefrontAd-
vancedAirbagonthepassengerside.
—Anairbagmonitoringsystemandindicator
lightkaintheinstrumentcluster.
—Asensorineachfrontseatregistersthedis-
tancebetweentherespectiveseatandthe
steeringwheelorinstrumentpanel.Theinfor-
mationregisteredissent continuouslytothe
195

Airbagsystem

electroniccontrolunittoregulatedeployment
ofthefrontAdvancedAirbags.
—ThePASSENGERAIRBAGOFF3;lightcomes
onandstaysonintheheadliner>page200,
fig.155andtellsyouwhenthefrontAdvanced
Airbagonthepassengersidehasbeenturned
off.
—Asensorinthesafetybeltlatchforthedriver
andforthefrontseatpassengerthatsenses
whetherthatsafetybeltislatchedornotand
transmitsthisinformationtotheelectronic
controlunit.


ZA\WARNING
Damagetothefrontpassengerseatcanpre-
ventthefrontairbagfromworkingproperly.
—Improperrepairordisassemblyofthefront
passengeranddriverseatwillpreventthe
AdvancedAirbagSystemfromfunctioning
properly.
—Repairstothefrontpassengerseatmustbe
performedbyqualifiedandproperlytrained
workshoppersonnel.
—Neverremovethefrontpassengeror driver
seatfromthevehicle.
—Neverremovetheupholsteryfromthefront
passengerseat.
—Neverdisassembleorremovepartsfromthe
seatordisconnectwiresfromit.
—Nevercarrysharpobjectsinyourpocketsor
putthemontheseat.Thecapacitivepassen-
gerdetectionmatinthefrontpassenger
seatwillnotfunctionproperlyifitispunc-
tured.
—Nevercarrythingsonyourlaporcarryob-
jectsonthefrontpassengerseat.Suchob-
jectscaninfluencethecapacitanceregis-
teredby thecapacitivepassengerdetection
system,sothatincorrectinformationispro-
videdtotheairbagcontrolunit.
—Neverstoreitemsunderthefrontpassenger
seat.PartsoftheAdvancedAirbagSystem
underthepassengerseatcouldbedam-
aged,preventingthemandtheairbagsys-
temfromworkingproperly.
—Neverplaceseatcoversorreplacementup-
holsterythathave notbeenspecificallyap-
provedbyAudionthefrontseats.

—SeatcoverscanpreventtheAdvancedAirbag
Systemfromrecognizingchildrestraintsor
occupantsonthefrontpassengerseatand
preventthesideairbagintheseat backrest
fromdeployingproperly.
—Ifaseatheaterhasbeenretrofittedor oth-
erwiseaddedtothefrontpassengerseat,
neverinstallanychildrestraintsystemon
thisseat.
—Neverusecushions,pillows,blankets,or
similaritemsonthefrontpassengerseat.
Theadditionallayerspreventthecapacitive
passengerdetectionsystemfromaccurately
measuringthecapacitanceofthechildsafe-
tyseatand/orthe personontheseatand
thuskeeptheAdvancedAirbagSystemfrom
workingproperly.
—Neverplaceoruseanyelectricaldevice
(suchasalaptop,CDplayer,electronic
gamesdevice,powerinverterorseatheater
forchildseats)onthefrontpassengerseat
ifthedeviceisconnectedtothe12-volt
socketorthecigarettelightersocket.Such
devicescaninfluencethecapacitanceregis-
teredbythecapacitivepassengerdetection
system,so thatincorrectinformationispro-
videdtotheairbagcontrolunit.
—Ifyoumustuseachildrestraintonthefront
passengerseatandthechildrestraintman-
ufacturer'sinstructionsrequirethe useofa
towel,foamcushionorsomethingelseto
properlypositionthechildrestraint,make
certainthatthePASSENGERAIRBAGOFF
3%;lightcomesonandstaysonwhenever
thechildrestraintisinstalledonthefront
passengerseat.
—IfthePASSENGERAIRBAGOFF%;light
doesnotcomeonandstayon,immediately
installchildrestraintinarearseatingposi-
tionandhavetheairbagsysteminspected
byyourAudidealer.


ZAWARNING
Ifthefrontpassengerseat getswet,dryitim-
mediately.


196

8S1012721BA
Airbagsystem


—Ifliquidsoaksintothefrontpassengerseat,
thiscankeeptheairbagsystemfromwork-
ingproperlyandmay,forinstance,deacti-
vatethepassengerfrontalairbag.Ifthis
happens,thePASSENGERAIRBAGOFF¥;
lightwillcomeonandstayontogetherwith
theairbagindicatorlightEaintheinstru-
mentcluster.
—Ifliquidispooledontheseat,but hasnot
soakedin,thismayalsokeeptheairbagsys-
temfromworkingproperlyandcausethe
passengerfrontalairbagtobeenabled
(turnedon),eventhoughthereisaproperly
installedchildrestraintsystemontheseat.
Wettowelsorotherwetthingsontheseat
cushioncanhavethesameeffect.Ifthe
frontpassengerfrontalairbagisturnedon,
thePASSENGERAIRBAGOFF#;lightwill
turnoff.
temunderFederalMotorVehicleSafetyStandard
208.ThePASSENGERAIRBAGOFF3;light
comesonandstaysontotellyouwhenthefront
AdvancedAirbagSystemonthepassengerside
hasbeenturnedoff>page200.

Z\WARNING
Toreducetheriskofinjurywhenanairbagin-
flates,alwayswearsafetybeltsproperly.
—Ifyouareunrestrained,leaningforward,sit-
tingsidewaysoroutofpositioninanyway,
yourriskofinjuryismuchhigher.
—Youwillalsoreceiveseriousinjuriesand
couldevenbekilledifyouareupagainstthe
airbagortooclosetoitwhenitinflates-

evenwithanAdvancedAirbag>page188.



HowtheAdvancedAirbagSystem
componentsworktogether
ThefrontAdvancedAirbagSystemandtheside
airbagssupplementtheprotectionofferedbythe
frontthree-pointsafetybeltstohelpreducethe
riskofinjuryinawiderangeofaccidentandcrash
situations.Besuretoreadtheimportantinfor-
mation
aboutsafetyandheedtheWARNINGSin
thischapter.
DeploymentoftheAdvancedAirbagSystemand
theactivationofthesafetybeltpretensionersde-
pendonthedecelerationmeasuredbythecrash
sensorsandregisteredbytheelectroniccontrol
unit.Crashseveritydependsonspeedanddecel-
erationaswellasthemassandstiffnessofthe
vehicleorobject involvedinthecrash.
Onthepassengerside,regardlessof safetybelt
use,
thefrontpassengerfrontalairbagwillbe
turnedoffiftheelectricalcapacitancemeasured
bythecapacitivepassengerdetectionsystemon
thefrontpassengerseatislessthantheamount
programmedintheelectroniccontrolunit.The
frontpassengerfrontalairbagwillalsobeturned
offifthecapacitancemeasuredbythesystemfor
thefrontpassengerseatequalsthatofaninfant
ofaboutoneyearofageinoneofthechildseats
thatwasusedtocertifytheAdvancedAirbagSys-

TealSltmcomaluLSelLal
airbags


Fig.154Inflatedfrontairbags
Safetybeltsareimportanttohelpkeepfrontseat
occupantsintheproper seatedpositionsothat
airbagscanunfoldproperlyandprovidesupple-
mentalprotectioninafrontalcollision.
Thefrontairbagsaredesignedtoprovideaddi-
tionalprotectionforthechestandfaceofthe
driverandthefrontseatpassengerwhen:
—safetybeltsarewornproperly,
—theseatshavebeenpositionedso thattheoc-
cupantisproperlyseatedasfaras possible
fromtheairbag.
Because
airbagsinflateintheblinkofaneyewith
greatforce,thingsyouhaveonyourlaporhave
placedontheseatcouldbecomedangerouspro-
jectiles,andbepushedintoyouiftheairbagin-
flates.
197
>