2019 AUDI A4 sensor

8W0012721BG

Quickaccess

ElectronicStabilizationControl
(ESC)
=>page139
Brakesystem
=>page21
Anti-lockbrakingsystem(ABS)Y
=>page24
Anti-lockbrakingsystem(ABS)¥
=>page24
Safetysystems¥
=>page23
Brakepads
=>page21
Electromechanicalparkingbrake
=>page22
Tirepressure
=>page340
Tirepressure
=>page340
Drivesystem
=>page24
MalfunctionIndicatorLamp(MIL)
v
=>page308
Enginespeedlimitation
=>page24
Engineoillevel(MIN)
=>page312
Engineoillevel(MAX)
=>page312
Engineoilsensor
=>page312
Enginewarm-uprequest
=>page313
Electricalsystem
=>page317
Tanksystem
=>page24
Washerfluidlevel
=>page25
Windshieldwipers
=>page25

Keys
=>page 78
Driver'sdoor
=>page25
Batteryinvehiclekey
=>page30
Bulbfailureindicator
=>page25
Headlightrangecontrolsystem
=>page25
Adaptivelight
=>page25
Light/rainsensor
=>page25
Activelaneassist
>page118
Audisideassist
>page126
Audipresense
=>page117
Parkingaid
=>page137
Transmission(automatictransmis-
sion)
=>page90,
Clutch(manualtransmission)
>page 23
Steeringlock
=>page 23
Enginestartsystem
=>page23
Electromechanicalsteering
=>page142
Suspensioncontrol
=>page26
Allwheeldrive/sportdifferential
=>page26
Emergencycallfunction
=>page197

Otherindicatorlights
Turnsignals
>page26>
11

8W0012721BG
Instrumentcluster

iyTanksystem:malfunction!Pleasecontact
Service
Thereisamalfunctioninthefueltanksystem.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
@)Tips
Formoreinformationonfueling,see
=>page306.
®Washerfluidlevel
IfthegEindicatorlightturnson,thewasherflu-
idisalmostout.Fillthewasherfluidforthe
windshieldwashersystemandtheheadlight
washersystem*whentheignitionisswitchedoff
=>page320.
©!Windshieldwipers
Ifthe>indicatorlightturnson,thenthereisa
windshieldwipermalfunction.Drivetoanau-
thorizedAudidealerorauthorizedAudiService
Facilityimmediatelytohavethe malfunctioncor-
rected.
<3Driver'sdoor
|3}Driver'sdoor:malfunction!ShifttoPbefore
leavingvehicle.Seeowner'smanual
Thereisamalfunctioninthedriver'sdoor.Select
the"P"selectorleverposition(automatictrans-
mission)tosecurethevehicle.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
Bulbfailureindicator

IftheEaindicatorlightturnson,abulbhas
failed.Themessageindicatesthelocationofthe
bulb.Replace thebulbimmediately.
Vehiclelights:malfunction!Pleasecontact
Service
Thereisamalfunctionintheheadlightsorthe
lightswitch.DrivetoanauthorizedAudidealeror
authorizedAudiServiceFacilityimmediatelyto
havethemalfunctioncorrected.

Z\WARNING
—Lightbulbsareunderpressureandcanex-
plodewhenbulbsarereplaced,whichin-
creasestheriskofinjury.
—WithHIDheadlights(xenonheadlights),the
high-voltagecomponentmustbehandled
correctly.Otherwise,thereisariskoffatal
injury.


2©Dynamicheadlightrangecontrol
ByHeadlightrangecontrol:malfunction!See
owner'smanual
Thereisamalfunctioninthe headlightrange
controlsystem,whichmaycauseglareforother
drivers.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
ZOAudiadaptivelight
Appliesto:vehicleswithAudiadaptivelight
ByAudiadaptivelight:malfunction!Seeown-
er'smanual
Adaptivelightisnotworking.Theheadlightsstill
function.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
ComaAceals
aSAutomaticheadlights:malfunction!See
owner'smanual
aAutomaticwipers:malfunction!Seeowner's
manual
Thelight/rainsensorismalfunctioning.
Thelowbeamsremainswitchedonatalltimes
forsafetyreasonswhenthelightswitchisinthe
AUTOposition.However,youcancontinueto
turnthelightsonandoffusingthelightswitch.>
25

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.

Openingandclosing

Openingandclosing
Centrallocking
Youcanlockandunlockthevehiclecentrally.You
havethefollowingoptions:
—Vehiclekey>page31
—Sensorsinthedoorhandles*>page31
—Lockcylinderonthedriver'sdoor>page33
—
Interiorcentral lockingswitch>page32
Vehiclekey
Theterm“vehiclekey”referstotheremotecon-
trolkeyorconveniencekey*.Theconvenience
key*isaremotecontrolkeywithspecialfunc-
tions>page31and>page78.
Turnsignals
Theturnsignalsflashtwicewhenyouunlockthe
vehicleandflashoncewhenyoulockthevehicle.
Iftheydonotflash,thenoneofthedoors,the
luggagecompartmentlidorthehoodisnot
closedcompletely.
Automaticlocking(AutoLock)
The AutoLockfunctionlocksalldoorsandthe
luggagecompartmentlidoncethespeedhasex-
ceededapproximately9mph(15km/h).
Thevehiclecan beunlockediftheopeningfunc-
tioninthecentrallockingsystemswitchisused
oroneofthedoorhandlesispulled.
Intheeventofacrashwithairbagdeployment,
thedoorswillalsoautomaticallyunlocktoallow
accesstothevehicle.
Selectivedoorunlocking
Thedoorsandluggagecompartmentlidwilllock
whentheyclose.YoucansetintheInfotainment
systemwhetheronlythedriver'sdoorortheen-
tirevehicleshould beunlockedwhenunlocking
>page33.
Unintentionallylockingyourselfout
Onlylockyourvehiclewhenallofthedoorsand
theluggagecompartmentlidareclosedandthe
238
vehiclekeyisnotinthevehicle.Thisreducesthe
riskoflockingyourselfoutaccidentally.
Thefollowingfeatureshelptoreducetheriskof
lockingyourvehiclekeyinthevehicle:
—Ifthedriver's doorisopen,thevehiclecannot
belockedbypressingthe@buttononthevehi-
clekeyorbytouchingthelockingsensor*ona
door.
—Appliesto:sedan:Iftheconveniencekey*that
wasusedlastisdetectedinsidetheluggage
compartment,theluggagecompartmentlid
willautomaticallyunlockandopenagainafter
closingit.
—Ifthelastconveniencekey*thatwasusedisde-
tectedinsidethevehicle,thevehiclecannotbe
lockedfromtheoutsideforabrieftime.

ZAWARNING
—Ifyouleavethevehicle,switchtheignition
offandtakethevehiclekeywithyou. This
appliesparticularlywhenchildrenremainin
thevehicle.Otherwise,childrencouldstart
theengineoroperateelectricalequipment
(such aspowerwindows),whichincreases
theriskofanaccident.
—Noone,especiallychildren,shouldstayin
thevehiclewhenitislockedfromtheout-
side,becausethewindowscannolongerbe
openedfromtheinside>page34.Locked
doorsmakeitmoredifficultforemergency
workerstoenterthevehicle,whichputs
livesatrisk.

@)Note
Appliesto:vehicleswithconveniencekey
—Appliesto:sedan:Iftheconveniencekey
thatwaslastusedisdetectedinsidethe
passengercompartment,thenwillnotbe
possible tolockthevehiclefromtheout-
side.Theturnsignalswillflashseveral
timestoindicatethis.Ifyoudonotopen
thevehiclewithinashorttimetoremove
thevehiclekey,thenthevehiclewilllockau-
tomatically. Thispreventsthevehiclefrom
beingleftunlockedforlongperiodsoftime.
Thekeywillthenbelockedinsidethevehi-
cle.

Openingandclosing

—Exteriorlighting
—Rainsensor
—Memoryfunction*
—Parkingaid*
—Adaptivecruisecontrol*
—Active laneassist*
—Sideassist*
—Trafficjamassist*
—Distancewarning*
—Audipresense*
—Speedwarning*
Thestoredsettings areautomaticallyrecalled
whenyouunlock thevehicle,openthedoorsor
turnontheignition.
®Note
Protectthekeyagainsthightemperatures
anddirectsunlight.
G)Tips
— Thevehiclekeyfunctioncanbetemporarily
disruptedbyinterferencefromtransmitters
nearthevehicleworkinginthesamefre-
quencyrange(suchasamobiledeviceorra-
dioequipment).Alwayscheckifyourvehicle
islocked.
—Foranexplanationonconformitywiththe
FCCregulationsintheUnitedStatesandthe
IndustryCanadaregulations,see
=>page370.
Removingthemechanicalkey



BFV-0279

Fig.18Vehiclekey:removingthemechanicalkey
>Pressthereleasebuttons(@©fig.18andre-
movethemechanicalkeyfromthevehiclekey.
Usingthemechanicalkey,youcan:
30
—Lock/unlocktheglovecompartment.
—Lockingandunlockingthelockable*rearbench
seat>page66.
—Manuallylock orunlockthevehicle>page33.
—Mechanicallylockthedoors>page33.
—Switchthechildsafetylocksonintherear
doors>page40,fig.35.
LEDandbatteryinthevehiclekey

BFV-0280


Fig.19Vehiclekey:removingthebatteryholder

BFV-0277


Fig.20Vehiclekey(rearside):removingthebatteryholder
LEDinthevehiclekey
TheLED(@)indicatesthevehiclekeyfunction.
>Ifyoupressabuttonbriefly,theLEDblinks
once.
>Ifyoupressandholdabutton(convenience
opening/closing),theLEDblinksseveraltimes.
>IftheLEDdoesnotblink,thevehiclekeybat-
teryisdrained.Replacethebatteryinthevehi-
clekey.
Replacingthevehiclekeybattery
>Pressthereleasebuttons()>fig.19andre-
movethemechanicalkey.
>Pressthereleasebuttons(3)>fig.20while
pullingthebatteryholderoutofthevehiclekey
inthedirectionofthearrow.

Openingandclosing

Unlockingthevehicle
> Gripthedoorhandle.Thedoorunlocksauto-
matically.
>Pullonthedoorhandletoopenthedoor.
Lockingthevehicle
>Appliesto:vehicleswithautomatictransmis-
sion:Selectthe"P"position,otherwisetheve-
hiclewillnotlock.
>Tolockthevehicle,closethedoorandtouch
thesensorinthedoorhandleonce>fig.22.Do
notholdthedoorhandlewhiledoingthis.
Youcanunlock/lockthevehicleateverydoor.The
vehiclekeycannotbemorethanapproximately
4feet(1.5m)awayfromthedoorhandle.The
functionshouldnotbeimpairedifthevehiclekey
isinyourjacketpocketorinyourbriefcase,for
example.
Ifyouholdthedoorhandlewhilelocking,this
canimpairthelockingfunction.
Thedoor cannotbeopenedforabriefperioddi-
rectlyafterlockingit.Thiswayyouhavethe op-
portunitytocheckifthedoorslockedcorrectly.
ThesettingsintheInfotainmentsystemdeter-
mineiftheentirevehicleoronlyoneofthedoors
isunlockedwhenunlockingthevehicle
=>page33.


ZAWARNING
ReadandfollowingallWARNINGS=>A\inDe-
scriptiononpage28.

@)Tips
Ifyourvehicleisleftstandingforalongperi-
odoftime,notethefollowing:
— Theenergymanagementsystemgradually
turnsoffunnecessaryconveniencefunctions
topreventthevehiclebatteryfromdraining
andtomaintainthevehicle'sabilitytostart
foraslongaspossible.Youthenmayno
longerbeabletounlockyourvehiclewith
thesensors.
32
G)Tips
Unlockingwiththeconveniencekey(keyless
access)canbedeactivatedintheInfotain-
mentsystem>page33.
Centrallockingswitch
a
Ss
2
=%a

Fig.23Driver'sdoor:centrallockingswitch
>Tolockthevehicle,pressthe@button>/\.
>Tounlockthevehicle,pressthe@button.
Whenlockingthevehiclewiththecentral locking
switch,
thefollowingapplies:
—Thedoorsandtheluggagecompartmentlid
cannotbeopenedfromtheoutsideforsecurity
reasons,suchastopreventunauthorizedopen-
ingwhilestoppedatalight.
—TheLEDinthecentral lockingswitchturnson
whenalldoorsareclosedandlocked.
—Youcanopenthedoorsindividuallyfromthein-
sidebypullingthedoorhandle.
—Intheeventofacrashwithairbagdeployment,
thedoorsunlockautomaticallytoallowaccess
tothevehicle.

ZAWARNING
— Thecentral lockingswitchalsoworkswhen
theignitionisswitchedoffandautomatical-
lylockstheentirevehiclewhenthe&button
ispressed.
—Thecentral lockingswitchisinoperative
when
thevehicleislockedfromtheoutside.
—Lockeddoorsmakeitmoredifficultfor
emergencyworkerstoenterthevehicle,
whichputslivesatrisk.Donotleaveanyone
behindinthevehicle,especiallychildren.>

8W0012721BG
Openingandclosing


—ReadandfollowingallWARNINGS>Ain
Descriptiononpage28.

@Tips
Yourvehiclelocksautomaticallywhenit
reachesaspeedof9mph(15km/h)(Auto
Lock)=page28.Youcanunlockthevehicle
againusingthe@buttoninthecentrallock-
ingswitch.
Settingthecentrallockingsystem
Youcanadjustthecentral lockingsystemtoyour
preferences.Thesettingsdependonthevehicle
equipment.

>SelectintheInfotainmentsystem:[MENU]but-
ton>Vehicle> leftcontrolbutton>Vehicle
settings>Centrallocking.

Doorunlocking-youcandecideifAlldoorsor
onlytheDriver'sdoorshouldunlock.Thelug-
gage compartmentlidalsounlockswhenAllis
selected.IfyouselectDriver'sdoor*inavehicle
withaconveniencekey,onlythedriver'sdoor
willunlockwhenyougraspthedriver'sdoorhan-
dle.Ifyougraspanotherdoorhandle,theentire
vehiclewillbeunlocked.
IfyouselectDriver'sdoor,allthedoorsandlug-
gagecompartmentlidwillunlockifyoupressthe
fbuttononthevehiclekeytwice.
Longpresstoopenwindows-youcanselectif
allwindowsandtheroofshouldopenusingthe
vehiclekey>page41,Convenienceopening
andclosing.Ifyoupressandholdthe&button
onthevehiclekey,allofthewindowsandthe
roofwillclose.
Appliesto:vehicleswithconveniencekey:Open
withconveniencekey-youcandeactivatethe
functionforunlockingviathesensor.Thefunc-
tionforlockingviathesensorwillstillbeenabled
>page31.
Disablerearlidhandle-ifyouselectOn,thelug-
gagecompartmentlidhandleislocked.Inthis
case,theluggagecompartmentlidcanbe

)_Thisfunctionisnotavailableinallcountries.

openedwiththe<3buttononthevehiclekeyor
withtheunlockbuttoninthedriver'sdoor.Inve-
hicleswithaconveniencekey*,youcanstillopen
theluggagecompartmentlidusingthehandleif
anauthorizedconveniencekeyisneartheprox-
imitysensor*.
Foldmirrors-ifyouselectOn,theexteriorrear-
viewmirrorswillfoldinautomaticallywhenyou
pressthe&buttononthevehiclekeyortouch
thesensor*inthehandle.
Tonewhenlocking”)-ifyouselectOn,atonewill
soundwhenyoulockthevehicle.
Mechanicallyunlockingandlockingthe
Cele
Ifthecentrallockingfails,youmustunlockor
lockthedoorsseparately.

SSS
saw-0149


BFV-0242

Fig.25Door:mechanicallylocking
Unlockingandlockingthedriver'sdoorwith
themechanicalkey
>Removethemechanicalkey>page30.
>Tounlockthedriver'sdoor,turnthekeytothe
unlockposition@)>fig.24.
33
>

Openingandclosing

>Tolockthedriver'sdoor,selectthe"P"position
(automatictransmission)andturnthekeyonce
totheclosingposition®=>/\.
Lockingthefrontpassenger'sdoororrear
doorswiththemechanicalkey
Themechanicallockislocatedontheedgeofthe
frontpassenger'sdoorandthereardoors.Itis
onlyvisiblewhenthedoorisopen.
>Removethemechanicalkey>page30.
>»Removethecapfromtheopening>fig.25.
> Insertthekeyintheinsideslotandturnitall
thewaytotheright(rightdoor)orleft(left
door).

Z\WARNING
ReadandfollowingallWARNINGS>A\inDe-
scriptiononpage28.
aea]
Appliesto:vehicleswithanti-theftalarmsystem

Iftheanti-theftalarmsystemdetectsavehicle
break-in,audioandvisualwarningsignalsare
triggered.Theanti-theftalarmsystemisswitch-
edonoroffwhenlockingorunlockingyourvehi-
cle.Ifthealarmistriggered,itwillshutoffauto-
maticallyafteracertainamountoftime.
Switchingthealarmoffmanually
>Toswitchthealarmoff,pressthe@buttonon
thevehiclekeyorswitchtheignitionon.
Dependingonthevehicleequipment,theanti-
theftalarmsystemmayhavethefollowingfea-
tures:
Break-insecurityfeature
Thealarmwillsoundifthereisabreak-inatthe
doors,hood,and/orluggagecompartmentlid.
Interior/towingprotectionmonitor*
Thealarmwillbetriggerediftherearemove-
mentsdetectedinthevehicleinterior(forexam-
ple,byanimals)orifthereisachangeinthevehi-
cleangle(forexample,whenthevehicleisbeing
towed).
34
Youcanpreventthealarmfrombeingtriggered
bydeactivatingtheinterior/towingprotection
monitor.
Deactivatingtheinterior/towing protection
monitor
Therearethefollowingoptionsfordeactivating
theinterior/towingprotectionmonitor:
>Pressthe@buttononthevehiclekeyasecond
timewithintwoseconds.Or
>Appliesto:vehicleswithconveniencekey:
Touchthesensoronthedoorhandleasecond
time
withintwoseconds.Or
>Turn themechanicalkeyinthedoorlocktothe
closepositionasecondtimewithin2seconds.
Ifyoulockthevehicle,thentheinterior/towing
protectionmonitorwillstayoffuntilthenext
timethevehicleisunlocked.

Z\WARNING
Noone,especiallychildren,shouldstayinthe
vehiclewhenitislockedfromtheoutside,be-
causethewindowscannolongerbeopened
fromtheinside.Lockeddoorsmakeitmore
difficultforemergencyworkerstoenterthe
vehicle,whichputslivesatrisk.

G)Tips
Theinterior/towingprotectionmonitoring*
onlyfunctionscorrectlywhenthewindows
andtheroof*areclosed.