2019 AUDI A4 battery

— Depending ontheInternetconnectionand
networktraffic,theconnectionmaydiscon-
nectedwhenonlinemediasourcesareplay-
ing.
—OnlinemediaandInternetradiousagede-
pendsontheserviceavailabilityofthethird
partyprovider.
—AudiAGsimplymakestheaccesstoonline
mediaservicespossiblethroughtheMMI
anddoesnottakeanyresponsibilityforthe
contentsoftheonlinemediaservices.
—Alwaysreadthe chapter>page186,Audi
connect.
— Depending onthemobiledevicebeingused,
theremaybeinterruptionsduringmedia
playbackandwhenusingthemyAudiapp.
Topreventinterruptionswhenusingamo-
biledevice,donotlockthescreenonyour
mobiledeviceandkeepthemyAudiappin
theforeground.
—ContactanauthorizedAudidealeror au-
thorizedAudiServiceFacilityforadditional
informationaboutonlinemedia.
Multimediaconnections
USBadapterforAudimusicinterfaceor
USBchargingport
Dependingonthevehicleequipment,youcan
connectyourmobiledevices(suchas asmart-
phoneorMP3player)totheAudimusicinterface
oraUSBchargingportusingaspecialUSB
adapter.
ao
ee
alS
_<
Fig.205AudiGenuineAccessories:USBadapter

[RAH-9202
ae
\

226
YoucanpurchasetheUSBadapter>fig.205
fromanauthorizedAudidealeroratspecialty
stores:
@USBadapterfordeviceswithamicroUSBcon-
nection
@USBadapterfordeviceswithanAppleLight-
ningconnection
@USBadapterfordeviceswithUSBtypeCcon-
nection
Dependingonthevehicleequipment,youmaybe
abletoconnectyourmobiledevicesthroughthe
Audi
musicinterfacetotheMMIusingtheUSB
adaptersandchargethebatteryatthesame
time.
Appliesto:vehicleswithAudimusicinterface
—Audimusicinterface:see>page226.
Appliesto:vehicleswithUSBchargingportsintherear
—USBchargingportsintherear:referto
=>page228.
@)Note
HandletheUSBadaptercarefully.Donotal-
lowittobepinched.
(i)Tips
— TheUSBadapteronthe Audimusicinter-
facewillsupportiPodtouchoriPhonedevi-
cesfromthe5thgenerationornewerwith
thelightningconnector.
—MobiledeviceswithanAppleDockconnec-
torcanonlybechargedusingaUSBadapter
designedfordeviceswithanAppleDock
connector.Datacannotbetransmitted.
NUTTae)
ConnectyourmobiledevicestotheAudimusic
interfaceinordertooperatethemthroughthe
MMIandchargethebattery.
TheAudimusicinterfaceUSBportsarelocatedin
thestoragecompartmentunderthecenterarm-
restandatthefront*ofthecenterconsole.They
arelabeledwiththe«<>symbol.

8W0012721BG
Media

TheAudimusicinterfaceAUXinputislocatedin
thestoragecompartmentunderthecenter
armrestandislabeledwithAUX.
USBInput
—Connectingorchargingamobiledeviceusing
theUSBadapter:connectthematchingUSB
adaptertotheAudimusicinterfaceUSBport
andthenconnectittothemobiledevice,such
asaniPhone.Thebatterywillchargeautomati-
cally.
—DisconnectingamobiledevicefromtheAudi
musicinterface::removetheUSBadapterfrom
the AudimusicinterfaceUSBport.
Themediaarestartedandoperatedthroughthe
mobiledeviceortheMMI,dependingonthede-
vicebeingused>page229.
Connectingmultiplemobiledevices:ifamobile
device(suchasasmartphone)isconnectedatthe
respectiveUSBportonthe Audimusicinterface,
thenalldevicescan beusedasa playbacksource.
AUXInput
—Connectingamobiledevice totheAUXinput:
connecttheAUXcabletotheAUXinputonthe
Audimusicinterfaceandthentothemobilede-
vice(suchasanMP3player orsmartphone).
—DisconnectingamobiledevicefromtheAUX
input:removetheAUXcablefromtheAUXin-
putontheAudimusicinterface.
—Operation:selectandconfirm theExternalau-
dio playersourceG)>page229,fig.206.Me-
diaisstartedandoperatedonthemobilede-
VICE.

ZAWARNING
Drivingrequiresyourcompleteandundivided
attention.Asthedriver,youhavecompletere-
sponsibilityforsafetyintraffic.Neveroperate
mobiledeviceswhiledriving,becausethisin-
creasestheriskofanaccident.

@)Note
—UseaUSBextensioncabletoconnectdevi-
cesthathaveanintegratedUSBconnector

))Applies onlytoMTPdevices.DoesnotapplytoAppledevi-
cesandUSBmassstoragedevices.
(suchasaUSBstick)topreventdamageto
yourUSBdeviceandthe Audimusicinter-
face.
—Extremelyhighorlow temperaturesthat
canoccurinsidevehiclescandamagemobile
devicesand/orimpairtheirperformance.
Neverleavemobiledevicesinthevehiclein
extremelyhighorlowtemperatures.
Gi)Tips
—Alwaysfollowtheinformationfoundin
=>page62.
—Whenyouswitchtheignitionoff,theUSB
portsarestillsuppliedwithpoweruntilthe
energymanagementintervenes.
—DonotuseanadditionaladapterorUSBex-
tensioncabletoconnectmobiledevicesto
the Audimusicinterfacethatalreadyhavea
cableorthatmustbeconnectedwithaUSB
adapter(>page226).Usinganadditional
adapterorUSextensioncablemayimpair
functionality.
—YoucanpurchasetheAUXconnectorcable
fromanauthorizedAudidealeror atspe-
cialtystores.
—Audirecommendssettingthevolumeofa
mobiledeviceconnectedtotheAUXinputto
approximately70%ofthemaximumvol-
ume.
—Functionalityisnotguaranteedformobile
devicesthatdonotconformtotheUSB2.0
specification.
— USBhubsarenotsupported.
—SomeversionsoftheiPodsuchastheiPod
shufflecannotbeconnectedtotheUSB
adapterfordeviceswithAppleDockconnec-
tor.ConnectthesedevicesusingaAUXcon-
nectorcable.
—Changedcontentonamobiledevicethat
isconnectedtotheAudimusicinterface
maynotbedisplayedinthemediacenter.In
this
case,resettheMediasettingsbackto
Factorysettings>page241.
—Videoplaybackthroughthe Audimusicin-
terfaceisonlysupportediftheconnected
227
>

Media

deviceisrecognizedasaUSBstoragedevice
(forexampleaUSBstick).Appledevicesand
MTPdevices(suchassmartphones)arenot
recognizedasUSBstoragedevices.
—iPodoriPhonemalfunctionsalsoaffectthe
operationoftheMMI.ResetyouriPod or
iPhoneifthishappens.
—AudirecommendsupdatingtheiPodor
iPhonesoftwaretothelatestversion.For
importantinformationonoperatingyour
iPod oriPhone,refertotheuserguidefor
thedevice.
— TheUSBadapterontheAudimusicinter-
facewillsupportiPodtouchoriPhonedevi-
cesfromthe5thgenerationornewerwith
thelightningconnector.
—Formoreinformationaboutthe Audimusic
interfaceandsupporteddevices,checkthe
Audidatabaseformobiledevicesatwww.
audiusa.com/mp3orcontactanauthorized
AudidealerorauthorizedAudiServiceFa-
cility.
USBchargingportsintherear
Appliesto:vehicleswithUSBchargingportsintherear
Youcanchargethebatteryon yourmobiledevice
throughaUSBchargingport.
Two USBchargingportsarelocatedatthebackof
the centerconsole.
—USBadapter:referto>page226,USBadapter
forAudi musicinterfaceorUSBchargingport.
—ChargingamobiledeviceusingtheUSB
adapter:connectyourmobiledevice toaUSB
chargingportusingasuitableUSBadapter.
—Disconnectingamobiledevicefromthecharg-
ingport:removetheUSBadapterfromtheUSB
chargingport.
—DisconnectingmobiledeviceswithanApple
Dockconnector:removetheAppleDockcon-
nectorfromtheAppledevicewiththerelease
tabspressedin.

Z\WARNING
Drivingrequiresyourcomplete andundivided
attention.Asthedriver,youhavecompletere-


sponsibilityforsafetyintraffic.Neveroperate

228

yourmobiledeviceswhiledriving,because
thisincreasestheriskofanaccident.
()Note
Extremelyhighorlowtemperaturesthatcan
occurinsidevehiclescandamagemobiledevi-
cesand/orimpairtheirperformance.Never
leavemobiledevicesinthevehicleinex-
tremelyhighorlowtemperatures.
G)Tips
—Inpreparationatthetimeofprinting.
—Alwaysfollowtheinformationfoundin
=>page62.
—Whenyouswitchtheignitionoff,theUSB
portsarestillsuppliedwithpoweruntilthe
energymanagementintervenes.
—DonotuseanyadditionalUSBextensionca-
blesoradapterstoconnectmobiledevices
totheUSBchargingport thathavealready
beenconnectedbyaUSBadapter.Usingan
additionaladapterorUSextensioncable
mayimpairfunctionality.

—USBhubsarenotsupported.
—Refertothemanufacturer'soperatingman-
ualforimportantinformationregardingthe
operationofyourmobiledevice.
—Correctfunctionofallmobiledevicescan-
notbeguaranteed.
— Thevehiclebatterydrainswhenmobilede-
vicesareturnedonbuttheengineisoff.
Rear SeatEntertainmentpreparation
Appliesto:vehicleswith Rear SeatEntertainmentpreparation
TheRear SeatEntertainmentpreparationin-
cludescablesandamountforAudiEntertain-
mentmobileinthedriver'sandfrontpassenger's
seatbackrests.
ThesuitableAudiEntertainmentmobileRear
SeatEntertainmentpackageisavailablethrough
AudiGenuineAccessories.
UsingAudiGenuineAccessoriesisrecommended.
Audihasverifiedtheirreliability,safety,andsuit-
ability.

8W0012721BG
Media


ProblemSolution

Audimusicinterface:themobile
deviceisnotrecognizedasa
source.
Formanycellphonesormobiledevices,playbackisnotpossible
when
thebatterylevelistoolow(lessthan5%ofitscapacity).
ThemobiledevicewillonlyberecognizedasasourceintheMMI
afterconnectingifthebatterychargeissufficient.

Audimusicinterface:malfunc-
tionsduringaudioplayback
throughaniPod/iPhone.
TheBluetoothaudioplayerfunctionisswitchedon.Switchthis
functionoff>page243whenyouarenotusingtheBluetoothau-
dioplayer.

Audimusicinterface:contents
thatarechangedonamobilede-
viceconnectedtotheAudimusic
interface®)arenotdisplayedin
themediacenter.
Reset theMediasettingstothefactorydefaultsettings
>page241.

AUXinput:thereisstaticwhen
connectinganddisconnectingthe
AUXconnectioncable.
Whenconnectinganddisconnecting,theExternalaudioplayer
sourceisalreadyselected.Beforeconnectingordisconnectingthe
mobiledevice,eithermutethedevice(see>page245)orswitch
toadifferentaudiosource(forexample>page215,Openingthe
radio).

Bluetoothaudioplayer*/Wi-Fi
audioplayer*:audioplaybackin-
terference.
Onlyoneinterfaceshouldbeactivelyusedatatimetoensure
problem-freeplayback.

Jukebox®*:tracks ontheimported
playlistaregrayedout.
Whenimportingplaylists,allofthefilesthemselvesmustbeim-
ported.

Jukebox*:importedtrackscannot
beplayedorfound.
Ifyoucannotfindimportedtracksinthemediacenter,theymay
notbesupported.Onlycopysupportedfiles>page235tothe
Jukebox.

Onlinemedia*:connectionfailed
betweentheMMIandthemyAudi
app.
ToestablishaconnectiontotheMMI,theMMIconnectionswitch
mustbe switchedoninthemyAudiappstatusscreen.

Bluetoothaudioplayer*:interfer-
encewithtrackdisplayandaudio
playback.
PlaybackinterferencecanoccurwhenusingtheBluetoothaudio
playerifamusicplayerappfromathirdpartyproviderisopen.
Audi
recommendsusingtheintegratedmediaplayeronyourBlue-
toothdevice(suchasasmartphone).

Wi-Fihotspot*:yourWi-Fidevice
isdisconnectedfromtheWi-Fi
hotspot.
Makesurethenetworkoptimizationfunctionsareswitchedoffin
theWi-FisettingsorinthenetworksettingsforyourWi-Fidevice.
ForadditionalinformationrefertotheuserguideforyourWi-Fi
device.

Audimusicinterface:audioplay-
backthroughtheconnectedmo-

biledeviceisnotpossible.

MakesuretheUSBmodeMTPisselectedinthesettingsonyour
mobiledevice.

2)Applies onlytoMTPdevices.DoesnotapplytoAppledevicesandUSBmassstoragedevices.
237

8W0012721BG
Audismartphoneinterface

OperatingAndroidAuto:togobacktotheAndroidAuto
Appliesto:vehicleswithAudismartphoneinterfacemenubar,pushthecontrolknobdown.
OpeningamenuOpeningamenuitem
AppleCarPlay:youcangobacktotheAppleCar-SelectandconfirmamenuitemusingtheMMI
Playmainmenuregardlessoftheselectedmenucontrolpanel.
itembypressingandholdingthe[BACK]button.


Troubleshooting
Appliesto:vehicleswithAudismartphoneinterface

ProblemSolution

Audismartphone
interfacecannotbe
opened.
Checkthebatterychargelevelonyoursmartphone.
ChecktheUSBcableanduseadifferentoneifnecessary.
CheckifAndroidAutoorAppleCarPlayisavailableinthecountrywherethevehi-
cleisbeingoperated.

AndroidAuto:checkiftheAndroidAutoappisinstalledonyoursmartphone.

Connectingthe
smartphonetothe
MMIfailed.
MakesurethatyouareusingthecorrectUSBadapterandcheckiftheUSB
adapterisconnectedcorrectlytoyoursmartphoneandthe Audimusicinterface
=>page226.

AppleCarPlay:checkifAppleCarPlayisactivatedonyoursmartphone.

AndroidAuto:checkintheAndroidAutoappifAndroidAutopermitsnewvehi-
cles.

Thesmartphoneis
notautomatically
detected.

MakesurethatyouareusingthecorrectUSBadapterandcheckiftheUSB
adapterisconnectedcorrectlytoyoursmartphoneandthe Audimusicinterface
=>page226.
Checkiftherequirementsneededtoconnectasmartphonehavebeenmet.

239

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
>

CheckingandFilling


“P”(Park)positiononvehicleswithanau-
tomatictransmission.
—Alwaysmakesurethatnopartsofthe
body,jewelry,ties,looseclothing,and
longhaircanbecaughtinmovingengine
components.Beforeanywork,alwaysre-
moveanyjewelryandties,tiebacklong
hair,andmakesureallclothingfitsclose
tothebodytotoreducetheriskofany-
thingbecomingcaughtinenginecompo-
nents.
—Payattentiontothefollowingwarnings
whenworkonthefuelsystemisrequired:
— Donotsmoke.
—Neverworknearopenflames.
—Alwayshaveaworkingfireextinguisher
nearby.
—Allworkonthebatteryorelectricalsystem
inyourvehiclecanresultininjuries,chemi-
calburns,accidents,or burns.Becauseof
this,allworkmustbeperformedonlyby an
authorizedAudidealerorauthorizedAudi
ServiceFacility.
—Limityour exposuretoexhaustandchemi-
calsto asshortatimeaspossible.

Z\WARNING
CaliforniaProposition65Warning:
—Engineexhaust,someofitsconstituents,
andcertainvehiclecomponentscontainor
emitchemicalsknowntotheStateofCali-
forniatocausecancerandbirthdefectsand
reproductiveharm.Inaddition,certainflu-
idscontainedinvehiclesandcertainprod-
ucts ofcomponentwearcontainoremit
chemicalsknowntotheStateofCalifornia
tocausecancerandbirthdefectsorother
reproductiveharm.
—Batteryposts,terminalsandrelatedacces-
soriescontainleadandleadcompounds,
chemicalsknowntotheStateofCalifornia
tocausecancerandreproductiveharms.
Washhandsafterhandling.

310
CG)Note
Whenfillingfluids,besurenottoaddanyflu-
idstothewrongreservoirs.Otherwisesevere
malfunctionsandenginedamagewilloccur.
@)Forthesakeoftheenvironment
Youshouldregularlycheckthegroundunder
yourvehicleinordertodetectleaksquickly.If
therearevisiblespotsfromoilorotherfluids,
bringyourvehicletoanauthorizedAudideal-
erorauthorizedAudiServiceFacilitytobe
checked.
Openingandclosingthehood
Thehoodisreleasedfrominsidethevehicle.

B8W-0042


Fig.255Unlockedhood:lever
Makesurethewiperarmsarenotraisedupfrom
thewindshield.Otherwisethepaintcouldbe
damaged.
Openingthehood
>Withthedriver'sdooropen,pulltheleverbe-
lowtheinstrumentpanelinthedirectionofthe
arrow>fig.254.
>Raisethehoodslightly>A\.

8W0012721BG
CheckingandFilling

Brakefluid
B8K-2122



Fig.259Enginecompartment:caponbrakefluidreservoir
Observethesafetyprecautions>A\inWorking
intheenginecompartmentonpage309.
Checkingthebrakefluidlevel
>Readthebrakefluidlevelonthebrakefluidres-
ervoir>page311,fig.256.Thebrakefluidlev-
elmustbebetweentheMINandMAXmarkings
>A.
Thebrakefluidlevelismonitoredautomatically.
Changingthebrakefluid
Brakefluidshouldbechangedatregularinter-
vals.Havethebrakefluidchangedby anauthor-
izedAudidealerorauthorizedAudiServiceFacili-
ty.TheauthorizedAudidealerorauthorizedAudi
ServiceFacilitywillinformyouofthereplace-
mentintervals.

ZAWARNING
—IfthebrakefluidlevelisbelowtheMIN
marking,itcanimpair thebrakingeffectand
drivingsafety,whichincreasetheriskofan
accident.Donotcontinuedriving.Seeanau-
thorizedAudidealerorauthorizedAudi
ServiceFacilityforassistance.
—Ifthebrakefluidisold,bubblesmayformin
thebrakesystemduringheavybraking.This
couldimpairbrakingperformanceanddriv-
ingsafety,whichincreasestheriskofanac-
cident.
— Thebrakefluidinyourvehiclemustmeet
thestandardVW50114andisavailableat
anauthorizedAudidealerorauthorizedAu-
diServiceFacility.Ifthisbrakefluidisnot
available,anotherhigh-gradebrakefluidof


equivalentqualitymaybeused,anditmust
meettheU.S.FederalMotorVehicleStand-
ard(FMVSS)116DOT4,Class6.
Q)Note
—IfthebrakefluidlevelisabovetheMAX
marking,brakefluidmayleakoutoverthe
edgeofthereservoirandresultindamage
tothevehicle.
—Donotallowanybrakefluidto comeinto
contactwiththevehiclepaint,becauseit
willcorrodethepaint.

Electricalsystem
Ifthe=orflindicatorlightturnson,thereisa
malfunctioninthegenerator,thebattery, orthe
vehicleelectricalsystem.
=Electricalsystem:malfunction!Safelystop
vehicle
Donotcontinuedrivingandswitchtheengineoff
=>AX.SeeanauthorizedAudidealerorauthorized
AudiServiceFacilityforassistance.
[HlElectricalsystem:malfunction!Restartnot
possible.PleasecontactService
Itwillnot bepossibletorestarttheengineonce
youturnitoff.Vehiclefunctions/drivingstability
maybelimited.DrivetoanauthorizedAudideal-
erorauthorizedAudiServiceFacilityimmediate-
ly.
z=Electricalsystem:malfunction!Pleasecon-
tactService
Switchoffallelectricalequipmentthatisnot
needed.Vehiclefunctions/drivingstabilitymay
belimited.DrivetoanauthorizedAudidealeror
authorizedAudiServiceFacilityimmediately.
z=Electricalsystem:lowbatterycharge.Bat-
tery
willbechargedwhiledriving
Thestartingabilitymaybeimpaired.
Ifthismessageturnsoffafteralittlewhile,the
vehiclebatteryhaschargedenoughwhiledriving.>
317