2019 AUDI A4 sensor

8W0012721BG
Parkingaid

=>A\inGeneralinformationonpage129,>@in
Generalinformationonpage129!
Visualwarnings
ThevisualwarningsintheInfotainmentsystem
displayhelpyoutodetectthecriticalvehiclearea
andtoestimatethedistancetoanobstacle
>fig.129.
Redsegmentsshowidentifiedobstaclesthatare
inyourvehicle'spath.Theredlinesmarktheex-
pecteddirectionoftravelaccordingtothesteer-
ing
angle.Awhitesegmentindicatesanidenti-
fiedobstaclethatisoutsideofthevehicle'spath.
Asyourvehiclecomesclosertotheobstacle,the
segmentsmoveclosertothevehicle.Thecolli-
sionareahasbeenreachedwhenthenexttolast
segmentisdisplayed.Obstaclesinthecollision
area,includingthoseoutsideofthevehicle's
path, areshowninred.Donotcontinuedriving
forwardorinreverse>A\inGeneralinformation
onpage129,>@inGeneralinformationon
page129!
@Tips
Ifthedistancetoanobstacleremainscon-
stant,thevolumeofthedistancewarning
graduallylowersafterafewsecondsuntilitis
muted(thisdoesnot applytothecontinuous
tone).Iftheobstaclecomescloserthanitwas
beforethesoundwasmuted,thetonewill
soundagain.Iftheobstaclebecomesfarther
awaythanitwasbeforethesoundwasmut-
ed,notonewillsound.Payattentiontothe
vehicle'ssurroundingswhenyoustartto
drive.
SyicealiaremliieRela
Appliesto:vehicleswithparkingsystemplus
z
s
S|
=aEs

Fig.130Centerconsole:parkingaidbutton
Switchingonandoff
Requirement:thevehiclespeedmustbeunder
approximately6mph(10km/h).
>PresstheP™buttoninthecenterconsole.A
shortconfirmationtonesoundsandtheLEDin
thebuttonturnson.
Switchingonautomatically
The
systemswitchesonautomaticallywhenre-
versegearisengagedwhiletheengineisrun-
ning.Abrieftonewillsound.
IfActivateautomaticallyisswitchedoninthe
Infotainmentsystemandifthevehicleap-
proachesanobstacleatspeedsunderapproxi-
mately6mph(10km/h),theparkingaidwill
switchonautomatically.Audiblesignalswill
soundoncetheobstacleiswithinthesensorde-
tectionarea.
Switchingoffautomatically
Thedistanceindicatorfortheparkingsystem
plusswitchesoffautomaticallywhendrivingfor-
wardfasterthan6mph(10km/h).
(@)Tips
IfyoupressthePvbuttonto switchthepark-
ingaidoff,itcanonlybereactivatedautomat-
icallywhenoneofthefollowingconditionsis
met:
—Thevehiclespeedexceeds6mph(10km/h)
—Theignitionisswitchedoffandbackon
again
—Theparkingbrakeissetandthenreleased
131
>

8W0012721BG
Parkingaid

automaticallywhenyoushiftintoreversegear.
Theviewinfrontofthevehicle(Frontmode)is
displayedautomaticallywhenyoushiftintothe
forwardgears.Whenfirstactivatinginaforward
gearwiththePbutton,thefrontsideviewis
displayed(Cornerview(front)mode).
IfyoudonotsettheV,theviewbehindthevehi-
cle(Rearmode)isalwaysdisplayedanditdoes
notswitchtothe Frontmodewhenaforward
gearisselected.
@Tips
—Severalmenuscanbeaccessedwiththe
rightcontrolbuttononlywhentheparking
aidisactive.
—Certain settingsareautomaticallystored
andassignedtothevehiclekeybeingused.
— Thenewlevelisdemonstratedbriefly*when
thevolumeisadjusted.
Errormessages
Appliesto:vehicleswitharearparkingsystem/parkingsys-
templus/rearviewcamera/peripheralcameras
wmRearparkingaid:malfunction!Obstacles
cannotbedetected
wmFrontparkingaid:malfunction!Obstacles
cannotbedetected
wmParkingaid:malfunction!Obstaclescannot
bedetected
Whenoneofthesemessagesappears,thereisa
systemmalfunction.TheLEDintheP4buttonal-
soblinkswhenswitchingiton.Therelevantmes-
sageonlyappearsagainwhenyoumanuallyacti-
vatetheparkingaidwiththebutton.
Rearparkingaid:obstacledetectionrestrict-
ed
Therearcross-trafficassist*>page125,Rear
cross-trafficassistisnotavailable.EithertheESC
isswitchedoff,ortheradarsensorsmaybecov-
ered byabikerack,stickers,leaves,snoworother
objects.SwitchtheESCon,orcleantheareain
frontofthesensorsifnecessary>page122,
fig.122.Ifthismessagecontinuestobedis-
played,driveimmediatelytoanauthorizedAudi
dealerorauthorizedAudiServiceFacilitytohave
themalfunctionrepaired.
Parkingsystemplus*
If asensororspeakerisfaulty,theP4symbol
willappearinfrontof/behindthevehicleinthe
Infotainmentsystemdisplay.If arearsensoris
faulty,onlyobstaclesthatareinareas(@)and
areshown>page130,fig.128.Ifafrontsensor
isfaulty,onlyobstaclesthatareinareas©and
©areshown.
Peripheralcameras*
Thereisasystemmalfunctionifthe#«symbol
appearsandthecorrespondingareaofthedis-
playisshowninblack.Thecameraisnotworking
inthisarea.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
137

Telephone

UsingtheAudiphone
box
Appliesto:vehicleswithAudiphonebox
Youcanchargeyourmobiledevicebatteryusing
theAudiphonebox.Youcanmakecallsthrough
theexteriorantenna*onthevehicle.Usingthe
externalantenna*helpswhenthereisalowsig-
nalandalsoprovidesbetterreceptionquality.


RAH-8335|



Fig.172Storagecompartmentunderthecenterarmrest:
diagram: Audiphoneboxwithconnections
Requirement:acellphonemustbeconnected
throughBluetooth>page171.
Theoptionsbelowareavailable:
—Connectingtotheexternalvehicleantenna*:
laythecellphoneonthecenterofthecell
phonesymbolintheAudiphoneboxwiththe
displayfacingup>fig.172.Makesurethere
arenoobjectsbetweenthe Audiphoneboxand
themobiledevice.
—Chargingacellphonewirelessly:placeaQi-ca-
pable»)cellphonecenteredonthe@symbolin
the Audiphoneboxwiththedisplayfacingup
>fig.172.Thecellphonewillcharge.
—ChargingamobiledeviceusingtheUSB
adapter:connectyourmobiledevicetotheAu-
dimusicinterfaceusingaUSBadaptercable(@)
>fig.172.
Youcanchargeyourmobiledeviceusingspecific
USBadapters>page226,fig.205.

ingmaneuvers,whichincreasestheriskof
anaccident.Storeobjectssecurelywhile
driving.
— Themobiledevicemaybecomehotduring
wirelesscharging.Payattentiontothetem-
perature ofyourmobiledeviceandbecare-
fulwhenremovingitfromthe Audiphone
box.
—Analternatingmagneticfieldisusedfor
wirelesscharging.Maintainaminimumdis-
tanceofapproximately2.4in(6cm)tothe
Audi
phoneboxchargingplate.Thethresh-
oldsforprolongedexposureat thisdistance
complywithICNIRP1998.Therefore,inter-
actionssuchasirritationofsensoryorgans,
malfunctionsofactiveimplants(suchas
pacemakers,infusionpumps,orneurosti-
mulators)oreffectsonpassiveimplants
(suchas prostheticlimbs)ishighlyunlikely.
Ifyouhaveanimplant,consultamedical
specialistifyouhaveanyquestions.


ZA\WARNING
—Looseobjectscanbethrownaroundtheve-
hicleinteriorduringsuddendrivingorbrak-


D_TheQistandardmakesitpossibletocharge yourmobile
devicewirelessly.
174
C)Note
ApplicabletoU.S.A.
Operationofthe Audiphoneboxissubjectto
thefollowingrequirementsoftheFederal
CommunicationsCommission:
—ThisisaCONSUMERdevice.
—BEFOREUSE,youMUSTREGISTERTHISDE-
VICEwithyourwirelessproviderandhave
yourprovider’sconsent.Mostwirelesspro-
vidersconsenttotheuseofsignalboosters.
Someprovidersmaynotconsenttothe use
ofthisdeviceontheirnetwork.Ifyouare
unsure,contactyourserviceprovider.
—YouMUSToperatethisdevicewithapproved
antennasandcablesasspecifiedby the
manufacturer.AntennasMUSTbeinstalled
atleast20cm(8inches)fromanyperson.
—YouMUSTceaseoperatingthisdeviceim-
mediatelyifrequestedbytheFCCorali-
censedwirelessserviceprovider.
—WARNING:E911locationinformationmay
notbeprovidedormaybeinaccuratefor
callsservedbyusingthisdevice.

8W0012721BG
Airbagsystem

theseatmaypreventtheAdvancedAirbagSys-
temforthefrontpassengerseatfromdoingits
jobinacrash.
ThefrontAdvancedAirbagSystemconsists
ofthefollowing:
—Crashsensorsinthefrontofthevehiclethat
measurevehicleacceleration/decelerationto
provideinformationtotheAdvancedAirbag
Systemabouttheseverityofthecrash.
— Anelectroniccontrolunit,withintegrated
crashsensorsforfrontandsideimpacts.The
controlunit“decides”whethertofirethefront
airbagsbasedontheinformationreceivedfrom
thecrashsensors.Thecontrolunitalso“de-
cides”whetherthesafetybeltpretensioners
shouldbeactivated.
— AnAdvancedAirbagwithgasgeneratorand
controlvalveforthedriver insidethesteering
wheelhub.
— AnAdvancedAirbagwithgasgeneratorand
controlvalveinsidetheinstrumentpanelfor
thefrontpassenger.
—Acapacitivepassengerdetectionsystemunder-
neaththefrontpassengerseatcover.Thissys-
temmeasurestheelectricalcapacitanceofthe
personintheseat.Theinformationregistered
issent continuouslytotheelectroniccontrol
unit toregulatedeploymentofthefrontAd-
vancedAirbagonthepassengerside.
— Anairbagmonitoringsystemandindicator
lightkaintheinstrumentcluster.
—Asensorineachfrontseatregistersthedis-
tancebetweentherespectiveseatandthe
steeringwheelorinstrumentpanel.Theinfor-
mationregisteredissent continuouslytothe
electroniccontrolunittoregulatedeployment
ofthefrontAdvancedAirbags.
—ThePASSENGERAIRBAGOFF#;ON@light
comesonintheheadliner>page273,fig.230
andtellsyouthestatusoftheAdvancedAirbag
onthepassengerside.
—Asensorinthesafetybeltlatchforthedriver
andforthefrontseatpassengerthatsenses
whetherthatsafetybeltislatchedornotand
transmitsthisinformationtotheelectronic
controlunit.


ZAWARNING
Damagetothefrontpassengerseatcanpre-
ventthefrontairbagfromworkingproperly.
—Improperrepairordisassemblyofthefront
passengeranddriverseatwillpreventthe
AdvancedAirbagSystemfromfunctioning
properly.
—Repairstothefrontpassengerseatmustbe
performedbyqualifiedandproperlytrained
workshoppersonnel.
—Neverremovethefrontpassengerordriver
seatfromthevehicle.
—Neverremovetheupholsteryfromthefront
PassengerSeat.
—Neverdisassembleorremovepartsfromthe
seatordisconnectwiresfromit.
—Nevercarrysharpobjectsinyourpocketsor
putthemontheseat.Thecapacitivepassen-
gerdetectionmatinthefrontpassenger
seatwillnotfunctionproperlyifitispunc-
tured.
—Nevercarrythingsonyourlaporcarryob-
jectsonthefrontpassengerseat.Suchob-
jectscaninfluencethecapacitanceregis-
teredbythecapacitivepassengerdetection
system,sothatincorrectinformationispro-
videdtotheairbagcontrolunit.
—Neverstoreitemsunderthefrontpassenger
seat.PartsoftheAdvancedAirbagSystem
underthepassengerseatcouldbedam-
aged,preventingthemandtheairbagsys-
temfromworkingproperly.
—Neverplaceseatcoversorreplacementup-
holsterythathavenotbeenspecificallyap-
proved by Audionthefrontseats.
—SeatcoverscanpreventtheAdvancedAirbag
Systemfromrecognizingchildrestraintsor
occupantsonthefrontpassengerseatand
preventthesideairbagintheseat backrest
fromdeployingproperly.
—Ifaseatheaterhasbeenretrofittedor oth-
erwiseaddedtothefrontpassengerseat,
neverinstallanychildrestraintsystemon
thisseat.
—Neverusecushions,pillows,blankets,or
similaritemsonthefrontpassengerseat.
Theadditionallayerspreventthecapacitive

269

Airbagsystem


passengerdetectionsystemfromaccurately
measuringthecapacitanceofthechildsafe-
tyseatand/orthepersonontheseatand
thuskeeptheAdvancedAirbagSystemfrom
cushioncanhavethesameeffect.Ifthe
frontpassengerfrontalairbagisturnedon,
thePASSENGERAIRBAGOFF#;lightwill
turnoff.

workingproperly.
—Neverplaceoruseanyelectricaldevice
(suchasalaptop,CDplayer,electronic
gamesdevice,powerinverterorseatheater
forchildseats)onthefrontpassengerseat
ifthedeviceisconnectedtothe12-volt
socketorthecigarettelightersocket.Such
devicescaninfluencethecapacitanceregis-
teredby thecapacitivepassengerdetection
system,so thatincorrectinformationispro-
videdtotheairbagcontrolunit.
—Ifyoumustusea childrestraintonthefront
passengerseatandthechildrestraintman-
ufacturer'sinstructionsrequirethe useofa
towel,foamcushionorsomethingelseto
properlypositionthechildrestraint,make
certainthatthePASSENGERAIRBAGOFF
¥;lightcomesonandstaysonwhenever
thechildrestraintisinstalledonthefront
Passengerseat.
—IfthePASSENGERAIRBAGOFF7%;light
doesnotcomeonandstayon,immediately
installchildrestraintinarearseatingposi-
tionandhavetheairbagsysteminspected
byyourAudidealer.
HowtheAdvancedAirbagSystem
componentsworktogether
ThefrontAdvancedAirbagSystemandtheside
airbagssupplementtheprotectionofferedbythe
frontthree-pointsafetybeltsandtheadjustable
headrestraintstohelpreducetheriskofinjuryin
awiderangeofaccidentandcrashsituations.Be
suretoreadtheimportantinformationabout
safetyandheedtheWARNINGSinthischapter.
DeploymentoftheAdvancedAirbagSystemand
theactivationofthesafetybeltpretensionersde-
pendonthedecelerationmeasuredbythecrash
sensorsandregisteredbytheelectroniccontrol
unit.Crashseveritydependsonspeedanddecel-
erationaswellasthemassandstiffnessofthe
vehicleorobjectinvolvedinthecrash.
Onthepassengerside,regardlessof safetybelt
use,thefrontpassengerfrontalairbagwillbe
turnedoffiftheelectricalcapacitancemeasured
bythecapacitivepassengerdetectionsystemon
thefrontpassengerseatislessthantheamount
programmedintheelectroniccontrolunit.The
frontpassengerfrontalairbagwillalsobeturned

AWARNINGoffifthecapacitancemeasuredby thesystemfor
~thefrontpassengerseatequalsthat ofaninfant
Ifthefrontpassengerseatgetswet,dryitim-ofaboutoneyearofagein oneofthechildseats
mediately.thatwasusedtocertifytheAdvancedAirbagSys-
temunderFederalMotorVehicleSafetyStandard
208.ThePASSENGERAIRBAGOFF#;light
comesonandstaysontotellyouwhenthefront
AdvancedAirbagSystemonthepassengerside
hasbeenturnedoff>page273.
—Ifliquidsoaksintothefrontpassengerseat,
thiscankeeptheairbagsystemfromwork-
ingproperlyandmay,forinstance,deacti-
vatethepassengerfrontalairbag.Ifthis
happens,thePASSENGERAIRBAGOFF#¥,
lightwillcomeonandstayontogetherwith
theairbagindicatorlightkaintheinstru-
mentcluster.
—Ifliquidispooledontheseat,but hasnot
soakedin,thismayalsokeeptheairbagsys-
temfromworkingproperlyandcausethe
passengerfrontalairbagtobeenabled
(turnedon),eventhoughthereisaproperly
installedchildrestraintsystemontheseat.
Wettowelsorotherwetthingsontheseat

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


270

Airbagsystem


—Theinflatingairbagwillhitthechildsafety
seatorinfantcarrierwithgreatforceand
willsmashthechildsafetyseatandchild
againstthebackrest,centerarmrest,door
orroof.
—Alwaysinstallrear-facingchildsafetyseats
ontherearseat.
—Ifyoumustinstallarearward-facingchild
safetyseatonthefrontpassengerseatbe-
causeofexceptionalcircumstancesandthe
PASSENGERAIRBAGOFF%;lightdoesnot
comeonandstayon,immediatelyinstall
therear-facingchildsafetyseatinarear
seatingpositionandhavetheairbagsystem
inspectedbyyourauthorizedAudidealer.


ZAWARNING
Objectsbetweenyouandtheairbagwillin-
creasetheriskofinjuryinacrashbyinterfer-
ingwiththewaytheairbagunfoldsorbybe-
ingpushedintoyouastheairbaginflates.
—Neverhold thingsinyourhandsoronyour
lapwhenthevehicleisinuse.
—Nevertransportitemsonorintheareaof
thefrontpassengerseat.Objectscould
moveintotheareaofthefrontairbagsdur-
ingbrakingorothersudden maneuversand
becomedangerousprojectilesthatcan
causeseriouspersonalinjuryiftheairbags
inflate.
—Neverplaceorattachaccessoriesorother
objects(suchascupholders,telephone
brackets,large,heavyorbulkyobjects)on
thedoors,overornear theareamarked
“AIRBAG”onthesteeringwheel,instrument
panel,seatbackrestsorbetweenthose
areasandyourself.Theseobjectscould
causeinjuryinacrash,especiallywhenthe
airbagsinflate.
—Neverreclinethefrontpassenger'sseatto
transportobjects.Itemscanalsomoveinto
theareaofthesideairbagorthefrontair-
bagduringbrakingorinasuddenmaneuver.
Objectsnear theairbagscanbecomeprojec-
tilesandcauseinjury,particularlywhenthe
seatisreclined.
—Neverplaceortransportobjectsonthefront
passengerseat.Objectsonthefrontpassen-

gerseatcouldcausethecapacitivesensorin
theseattosignaltoairbagsystemthatthe
seatisoccupiedbyapersonwhenitinfactis
not,orthatthepersonontheseatisheavier
thanheorsheactuallyis.The changein
electriccapacitancebecauseofsuchobjects
cancausethepassengerfrontairbagtobe
turnedonwhenitshould beoff,orcan
causetheairbagtoworkinawaythatisdif-
ferentfromthewayitwouldhaveworked
withoutobjectsontheseat.
—Alwaysmakesurethatthereisnothingon
thefrontpassengerseatthatwillcausethe
capacitivepassengerdetectionsystemin
theseattosignaltotheAirbagSystemthat
theseatisoccupiedbyapersonwhenitis
not,ortosignalthatit isoccupiedbysome-
onewhoisheavierthanthepersonactually
sittingontheseat.Thepresenceofanob-
jectcouldcausethepassengerfrontairbag
tobeturnedonwhenitshouldbeoff,or
couldcausetheairbagtoworkinawaythat
isdifferentfromthewayitwouldhave
workedwithouttheobjectontheseat.


Z\WARNING
Thefinedustcreatedwhenairbagsdeploycan
causebreathingproblemsforpeoplewitha
historyofasthmaorotherbreathingcondi-
tions.
—Toreducetheriskofbreathingproblems,
thosewithasthmaorotherrespiratorycon-
ditionsshouldgetfreshairrightawayby
gettingoutofthevehicleoropeningwin-
dowsordoors.
—Ifyouareinacollisioninwhichairbagsde-
ploy,washyourhandsandfacewithmild
soapandwaterbeforeeating.
—Becarefulnottogetthedustintoyoureyes,
orintoanycuts orscratches.
—Iftheresidueshould getintoyoureyes,
flushthemwithwater.


272

8W0012721BG
Airbagsystem

Monitoringthe
AdvancedAirbagSystem

‘oringindicatorlight
Twoseparateindicatorsmonitorthefunctionof
theAdvancedAirbagSystem:the2]lightand
thePASSENGERAIRBAGOFF#;ON@light.
TheAdvancedAirbagSystemaswellastheside
airbagsandsidecurtainairbagswithejection
mitigationfeatures(includingtheelectroniccon-
trolunit,sensorsandsystemwiring)areall
monitoredcontinuouslytomakesurethatthey
arefunctioningproperlywhenevertheignitionis
on.Everytimeyouturnontheignition,theair-
bagsystemindicatorlightkawillcomeon fora
fewseconds(functioncheck).
The systemmustbeinspectedwhenthe
indicatorlightBa:
—doesnotcomeonwhentheignitionisswitched
on
—doesnotgooutafewsecondsafteryouhave
switched
ontheignition,or
— comesonwhiledriving
Ifanairbagsystemmalfunctionisdetected,the
indicatorlightwillcomeontoserveasaconstant
remindertohavethesysteminspectedimmedi-
ately.
If amalfunctionoccurs thatturnsthefrontair-
bagonthepassengersideoff,thePASSENGER
AIRBAGOFF%;lightwillcomeonandstayon
whenevertheignitionison.

Z\WARNING
Anairbagsystemthatisnotfunctioningprop-
erlycannotprovidesupplementalprotection
inafrontalcrash.
-Iftheairbagindicatorlight>page23
comeswhenthevehicleisbeingused,have
thesysteminspectedimmediatelybyyour
authorizedAudidealer.Itispossiblethat
theairbagwillinflatewhenitisnotsup-
posedto,orwillnotinflatewhenitshould.

PASSENGERAIRBAGOFF2%;ON@light

Fig.230Sectionfromtheheadliner:PASSENGERAIRBAG
OFF2%,ON@light
ThePASSENGERAIRBAGOFF#¥;ON@lightis
locatedintheheadliner>fig.230.
ThePASSENGERAIRBAGOFF3;lightwillcome
onandstayontotellyouwhenthefrontAd-
vancedAirbagonthepassengersidehasbeen
turnedoffbytheelectroniccontrolunit.Ifthe
bulbforthePASSENGERAIRBAGOFF3¥;ON@
lightburnsout,theairbagindicatorlightkawill
comeontosignalamalfunctionintheAdvanced
AirbagSystem.Althoughtheburned-outbulb
willnotchangethewaythefrontpassenger's
frontalairbagworks,itwillnolongerbepossible
touse thePASSENGERAIRBAGOFF#7;ON®
lighttomakesurethattheairbagon/offstatusis
correctfortheoccupantonthefrontpassenger
seat.Havetheairbagsysteminspectedimmedi-
atelybyyourauthorizedAudidealer.
ThePASSENGERAIRBAGOFF3;ON@light
willblinkforabout5secondswhen:
—thecapacitivepassengerdetectionsystem,
whichswitchesthefrontseatpassenger'sfron-
talAdvancedAirbagonandoff,detectsa
changeinthestatusofthefrontpassenger
seat.
AssoonasthePASSENGERAIRBAGOFF#¥;ON
®lightstopsblinking,alwaysmakesurethatthe
airbag status(onoroff)asshownbythelightis
properfortheage,sizeandelectricalcapacitance
ofthepersonoccupyingthefrontpassengerseat.
Alwaysmakesurethatthesafetybeltforthe
frontpassengerseatisproperlyfastened.
ThePASSENGERAIRBAGOFF3;/PASSENGER
AIRBAGON@lightwillshowthestatusofthe>
273

8W0012721BG
Airbagsystem


thevehiclebatterywithapyrotechniccircuit
interrupter.
—Workonthepyrotechniccircuitinterrupter
mustonlybeperformedbyaqualified
technicianswhohavetheexperience,in-
formationandspecialtoolsnecessaryto
performtheworksafely.
—Ifthevehicleorthecircuitinterrupteris
scrapped,allapplicablesafetyprecautions
mustbefollowed.
OtherthingsthatcanaffectAdvanced
Airbagperformance
Changingthevehicle'ssuspensionsystemcan
changethewaythattheAdvancedAirbagSystem
performsinacrash.Forexample,usingtire-rim
combinationsnotapprovedbyAudi,loweringthe
vehicle,changingthestiffnessofthesuspension,
includingthesprings,suspensionstruts,shock
absorbersetc.canchangetheforcesthatare
measuredbytheairbagsensorsandsenttothe
electroniccontrolunit.Somesuspensionchanges
can,forexample,increasetheforcelevelsmeas-
uredbythesensorsandmaketheairbagsystem
deployincrashesinwhichitwouldnotdeployif
thechangeshadnotbeenmade.Otherkindsof
changesmayreducetheforcelevelsmeasuredby
thesensorsandpreventtheairbagfromdeploy-
ingwhenitshould.

ZA\WARNING
Changingthevehicle'ssuspensionincluding
useof unapprovedtire-rimcombinationscan
changeAdvancedAirbagperformanceandin-
creasetheriskofseriouspersonalinjuryina
crash.
—Neverinstallsuspensioncomponentsthat
donothavethesameperformancecharac-
teristicsasthecomponentsoriginallyinstal-
ledonyourvehicle.
—Neverusetire-rimcombinationsthathave

notbeenapprovedbyAudi.

Kneeairbags
preaal)aCeaitLs-eh)
Thekneeairbagsystemcanprovidesupplemen-
talprotectiontoproperlyrestrained frontseat
occupants.
= g
=
8

Fig.231Driver'skneeairbag
Thedriverkneeairbagisintheinstrumentpanel
underneaththesteeringwheel>fig.231,the
airbagforthepassengerisataboutthesame
heightintheinstrumentpanelunderneaththe
glovecompartment.
Thekneeairbagoffersadditionalprotectionto
thedriver'sandpassenger'skneesandupperand
lowerthigh areasandsupplementstheprotec-
tionprovidedbythesafetybelts.
Ifthefrontairbagsdeploy,thekneeairbagsalso
deployinfrontalcollisionswhenthedeployment
thresholdstoredinthecontrolunitismet
=page271,Moreimportantthingstoknow
aboutfrontairbags.
Inadditiontotheirnormalsafetyfunction,safe-
tybeltshelpkeepthedriverorfrontpassengerin
positioninafrontalcollisionso thattheairbags
canprovidesupplementalprotection.
Theairbagsystemisnotasubstituteforyour
safetybelt.Rather,itispartoftheoveralloccu-
pantrestraintsysteminyourvehicle.Alwaysre-
memberthattheairbagsystemcanonlyhelpto
protectyouifyouarewearingyoursafetybelt
andwearingitproperly.Thisiswhyyoushouldal-
wayswearyoursafetybelt,notjustbecausethe
lawrequiresyoutodoso>page253,Generalin-
formation.
277
>