2019 AUDI A4 ECU

Tableofcontents

Additionalsettings..................
Supportedmediaandfileformats......
Troubleshootingwoz:« &seesseorsssee
Operating).«viewvswinewearsem«>mee¥ o
TrOUBLESHOOEIAGvcsivessverminoesuenetnrewwven
SYSTEMSECtINGS:.««casiswes sce
Settingthedateandtime.............
MMIsettings..............2-.02005-
Connectionmanager.................
System:updater+ «areneseeermeseonewes
Soundsettings.............-.-000005
NVOLUMESEELINGSwienx sgame< ¢cams5aoe
RestartingtheMMI..................
Softwarelicenseinformation..........
SafetyFIrst).«sscessssic42sree26ower
Drivingsafety....................
Correctpassengerseatingpositions.....
Driver'sandfrontpassenger'sfootwell..
Pedalarea.............000ceceeee
SefbyBetts«ess..vicseussmesses6oimaece
Generalinformation.................
SafetyDelts«swiss2seria= 2arena6nnn©
Belttensioners...............0000005
Airbagsystem....................
Importantinformation...............
FRONUSINDAQS: wacss&oana 4caesseree
MonitoringtheAdvancedAirbagSystem.
Kneeairbags....................000,
Sid@aifbagSas< =ses¢esasxoKGSed oe
Sidecurtainairbags...............0..
Childsafety.................0..0.
Importantinformation...............
Childsafetyseats............002.000.
Securingchildsafetyseats............
LATCHsystem(loweranchoragesand
tethersfor'children)6seve6aesaie6tar
Additionalinformation...............
MaintenanceandCare...........305
CheckingandFilling.............305
FUGlisves:2 2wom< 2somesvfwea&5aueoea 2oe305
Reftielingcrosseeccsnesewanesxeawisoneeere306
Catalyticconverter...............0005308
OnBoardDiagnosticSystem(OBD)......308
Enginecompartment..............00%309
Engineoil........2...eeeeeeeee312
CoolingSYStEM. < =seesscteesdeeeeswe315
BrakePluidiic.«+aessovworvaeoucoteooawe317
Electricalsystem.............0..000.317
Bateenysa« 5nasissoSRSA5Am GKBasezc318
Windshieldwashersystem............320
Serviceintervaldisplay...............320
Whe6US «sescseeeeoseeeeseee2a322
WheelsiandTires¢sccusiassccmaueeoanemone© 0322
Tirepressuremonitoringsystem.......339
Careandcleaning................342
Generalinformation.................342
GarWashes:«wacusseemsssewesReeet342
Cleaningandcareinformation.........343
Takingyourvehicleoutofservice.......347
DovltYourselfwisssgosssscessowes348
Emergencyassistance...........348
Generalinformation..............4.-348
Equipmenteccos«yer2&nwo9¢ewsee348
TitemmOBility:Kit.scsio¢seers© «eomeone= 6ot349
Changingatire................eee351
Space-savingsparetire...............355
Collapsiblesparetire...............0.355
Fusesandbulbs.........0...2006535/7
PUSOSscore2 xmeme2 xae2wanssEEEBoe357.
Bulbs...2.eeeeeeeeee361
Emergencysituations............362
Gemetial’sscisass1 0snesx mcnauene« 9rena©exettons362
Startingbypushingortowing.........-362
Startingwithjumpercables...........362
Usingthejumpstartcable............363
Towingwithatowtruck..............-364
Raisingthevehicle................0-.365

Instrumentcluster

—Timeanddate>page240
—Digitalspeedometer*
—Averageconsumption
—Remainingrange*
—Short-termmemoryoverview
—Long-termmemoryoverview
—Energyconsumers*=page20
—Driverassistance*>page102
—Trafficsignrecognition*>page97
Theshort-termmemorycollectsdrivinginforma-
tionfromthetimetheignitionisswitchedonun-
tilitisswitchedoff.Ifyoucontinuedrivingwithin
twohoursafterswitchingtheignitionoff,the
newvaluesareincludedwhencalculatingthecur-
renttripinformation.
Unliketheshort-termmemory,thelong-term
memoryisnoterasedautomatically.Youcanse-
lectthetimeperiodforevaluatingtripinforma-
tionyourself.
Fuelconsumption
Thecurrentfuelconsumptioncan beshownusing
abargraph&fig.14.Theaverageconsumption
storedintheshort-termmemoryisalsodis-
played.Ifthebarsaregreenorthegraytone on
thebarschanges(dependingontheequipment),
yourvehicleissavingfuelbythefollowingfunc-
tion:
—Recuperation:electricalenergycanbestoredin
thevehiclebatterywhenthevehicleiscoasting
ordrivingdownhill.Thebarwillmovetoward
EVE.
G)Tips
Thedate,timeofday,andtimeanddatefor-
matcanbesetintheInfotainmentsystem
=>page240.
20
Energyconsumers
Appliesto:vehicleswithenergyconsumers
aN}®ao
Energyconsumers
taeri
0)2
Airconditioning
Auxiliaryheating
Rearwindowheating

Fig.15Instrumentcluster:energyconsumers
IntheEnergyconsumersview,theotherequip-
mentthatiscurrentlyaffectingfuelconsumption
islistedinthefirsttab(on-boardcomputer).The
displayshowsuptothreeenergyconsumers
>fig.15.Theequipmentusingthemostpoweris
listedfirst.Ifmorethanthreeitemsusingpower
areswitchedon,theequipmentthatiscurrently
usingthemostpowerisdisplayed.
Agauge(@)alsoshowsthecurrenttotalcon-
sumptionofallotherconsumers.
Engineoiltemperaturedisplayandboost
atelte-hels
Appliesto:vehicleswithengineoiltemperaturedisplay/boost
indicator
Appliesto:vehicleswithanaloginstrumentcluster
Theengineoiltemperatureandboostindicator
areonlyshowninthelaptimerdisplay
=>page99.
Engineoiltemperatureindicator
Appliesto:vehicleswith Audivirtualcockpit
Theengineoiltemperatureisonlyshowninthe
enhancedvieworinthesportview>page17.
Whenengineoiltemperaturesarelow,thedis-
play---°F(---°C)appearsintheinstrumentclus-
ter.
Theenginehasreacheditsoperatingtempera-
turewhentheengineoiltemperatureisbetween
176°F(80°C)and248°F(120°C)undernormal
drivingconditions.Theengineoiltemperature>

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.

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

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.>

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.

8W0012721BG
Openingandclosing

Thetrunkescapelatchinsidetherearlidismade>Presstheleverwiththemechanicalkeyinthe
offluorescentmaterialtoglowinthedark.directionofthearrowtoreleasetheluggage
compartmentlid.

Fixedrearseatbackrest
Thetrunkescapelatchistobeusedonlyinan
emergency.>Carefullypulltheleftsideoftherearbench
seatoutofitsmountuntilyoucanreachthere-
leasecable>fig.32.
>»RemovetheVelcro®tape@).
> Pullontheloop@untiltheluggagecompart-
mentlidreleases.


Theemergencyreleaselevershouldneverbe
usedasa handleforclosingtheluggagecom-
partmentlid.
Mechanicallyunlockingtheluggage
compartmentlid
Appliesto:sedan
>Tapethereleasecablebackinplaceandpress
thebenchseatbackintoitsretainer.



Afteropeningtheluggagecompartmentlid
usingtheemergencyreleaseinvehicleswitha
fixedrearseatbackrest,makesurethebrack-
etundertherearbenchseatlockssecurelyin-
tothemountingeyeletagain.
Mechanicallyunlockingtheluggage
compartmentlid
Appliesto:allroad


Fig.31Innerluggagecompartmentlid:accesstothe
emergencyrelease
RAZ-0263

Fig.33Innerluggagecompartmentlid:access tothe
emergencyrelease


Fig.32Rearbenchseat:emergencyreleasecable>Removethemechanicalkey>page30.
>Pryoutthecover usingthemechanicalkey
>fig.33.
>Presstheleverwiththemechanicalkeyinthe
directionofthearrowtoreleasetheluggage
Foldingrearseatbackrestcompartmentlid.
Therearlidcanbeopenedfromtheluggage
compartmentorfromtherearbenchseatusing
theemergencyrelease.
>Removethemechanicalkey>page30.
>Usingtheemergencykey,pryoffthecoverin
theluggagecompartmentlidtrimpanel
>fig.31.
39