2019 AUDI A4 engine

8W0012721BG
Emergencyassistance


—Toreducetheriskofanaccident,neverstart
theenginewhenthevehicleisraised.
—Toreducetheriskofinjury,supportthevehi-
clesecurelywithsuitablestandsifworkisto
beperformedunderneaththevehicle.

ZAWARNING
Tohelppreventinjurytoyourselfandyour
passengers:
—Donotraisethevehicleuntilyouaresure
thejack*issecurelyengaged.
—Passengersmustnotremaininthevehicle
whenitisjackedup.
—Makesurethatpassengerswaitinasafe
place
awayfromthevehicleandwellaway
fromtheroadandtraffic.
—Makesurejackpositioniscorrect,adjustas
necessaryandthencontinuetoraisethe
jack*.
—Ifworkhastobedoneunderthevehicle,en-
surethatitissafelysupportedonsuitable
stands-riskofinjury!
—Neverstarttheenginewhenthevehicleis
onthejack*-riskofaccident!




@)Note
Donotliftthevehiclebythesill.Positionthe
vehiclejack*onlyatthedesignatedmounting
pointsonthesidesill.Otherwise,yourvehicle
couldbedamaged.
Removingandinstallingawheel
@RgTt
“ooO

m™
Fig.274Wheel:internalhexsocket to turnthewheelbolts

5is+
~%0a
Fig.275Wheel:alignmentpininthetophole
Removingawheel
>Removethetopwheelboltcompletelyusing
thehexsocketinthescrewdriverhandlefrom
thevehicletoolkit>fig.274andplaceitona
cleansurface.
>Theninstallthealignmentpinfromthevehicle
toolkitintheemptywheelboltholebyhand
>fig.275.
>Removetherestofthewheelbolts.
>Removethewheel>().Thealignmentpinre-
mainsintheholewhiledoingthis.
Installingawheel
Readthedirectionsonpage354wheninstal-
lingunidirectionaltires.
>Slidethewheelonoverthealignmentpin>@.
>Installthewheelboltsandtightenthemgently
usingthehexsocket.
>Removethealignmentpinandtightenthere-
mainingwheelbolt.
>Carefullylowerthevehicleusingthevehicle
jack*.
»
Tightenthewheelboltsinadiagonalpattern
usingthewheelwrench.
Thewheelboltsmustbecleanandloosenand
tighteneasily.Checkthecontactsurfacesforthe
wheelandhub.Contaminantsonthesesurfaces
mustberemovedbeforeinstallingthewheel.

Z\WARNING
Neverusethehexsocketinthescrewdriver
handleorthehexsocketwrenchwiththe
ratchettoloosenortightenthewheelbolts.
This increasestheriskofanaccident,because
youwillnot beabletoachievethecorrect
tighteningspecification.>


353

8W0012721BG
Fusesandbulbs






















































Fusepanel(4)(brown)Fusepanel©(black)
No.|EquipmentNo.|Equipment
2Massairflowsensor,camshaftadjustment,1|Frontseatheating
chargeaircoolerpump2|Windshieldwipers
3Exhaustdoors,fuelinjectors,radiatorin-3|Leftheadlightelectronics
EseyeletheheATOeSSHTigIHCOECEPanoramicglassroof/sliding/tiltingsun-
Vacuumpump,hotwaterpump,particu-4roof
4|latesensor,biodieselsensor,exhaust©|Letetrontdoorcontrolmodule
doors
-6|Sockets
5|Brakelightsensor
: :7|Rightreardoorcontrolmodule
6|Engine valves,camshaftadjustment
-8|Allwheeldrive
7|Heatedoxygensensor,massairflowsensor-- -
- -
9|Rightheadlightelectronics
8Waterpump,highpressurepump,high: : -
pressureregulatorvalve10Windshieldwashersystem/headlight
washersystem
9|Hotwaterpump
--11|Leftreardoorcontrolmodule
10|Oilpressuresensor,oiltemperaturesensor
11|Clutchpedalpositionsensor,enginestartFusepanel(©)(black)
12
|
EnginevalvesNo.
|
Equipment
13|RadiatorfanSeatventilation,rearviewmirror,climate
14|Fuelinjectors,enginecontrolmodule1|controlsystem,rearclimatecontrolsys-
_-temcontrols,windshielddefogger
15|Ignitioncoils,heatedoxygensensors
2|Gateway,climatecontrolsystem
16|Fuelpump
3|Soundactuator/exhaustsoundtuning
Fusepanel(8)(red)4|Clutchpedalpositionsensor
No.|Equipment5|Enginestart
Anti-theftalarmsystem7|RearUSBchargingport
2|Enginecontrolmodule8|Garagedooropener
Lumbarsupport9|Adaptivecruisecontrol
4Automatictransmissionselectormecha-10|Exteriorsound
Hen11|Videocamera
5|Horn5:==
12|MatrixLEDheadlight/rightLEDheadlight
6|Electromechanicaliparkingbrake13|MatrixLEDheadlight/leftLEDheadlight
7|Gatewaycontrolmodule14|Rearwindowwiper
8|Interiorheadlinerlights16|Rear SeatEntertainmentpreparation
9|Emergencycallsystem—
10|AirbagcontrolmoduleFusepanel©)(red)
11|ElectronicStabilizationControl(ESC)No.:|Equipment
12|Diagnosticconnector,light/rainsensor1|Ignitioncoils
13|Climatecontrolsystem5_|Enginemount
14|Rightfrontdoorcontrolmodule6[Automatictransmission
15|A/Ccompressor7|Instrumentpanel
8|Climatecontrolsystem(blower)

359

Fusesandbulbs


Fuseassignment-Leftsideoftheluggage
compartm
Fusepanel(©)(red)
10|Dynamicsteering


11|Enginestart
Fuseassignment-Driver'ssideofthe
(fold4o)ig

B4M-0148


Fig.280Driversidecockpit:fusepanelwithplasticbracket
























Fusepanel
No.|Equipment
1|Vehicleopening/start(NFC)-
2
|
TelephonePaineoftheluggagecompartment:fusepanel
4|Head-updisplay
5|Audimusicinterface,USBchargingportFusepanel(@)(black)
6|FrontclimatecontrolsystemcontrolsNo.|Equipment
7
|
Steeringcolumnlock2|Windshielddefroster
8
|
Infotainmentsystemdisplay 3|Windshielddefroster
9|InstrumentclusterS
|
Suspensioncontrol
10
|
Infotainmentunit6|Automatictransmission
11
|
Lightswitch,switchpanel7
|
Rearwindowdefogger
12
|
Steeringcolumnelectronics8
|
Rearseatheating
14
|
Infotainmentsystem9
|
Lefttaillights
16
|
Steeringwheelheating10
|
Leftsafetybelttensioner

360
11|Centrallockingsystem

12|Luggagecompartmentlid

Fusepanel(8)(red)

No.|Equipment

Notassigned

Fusepanel©(brown)

No.|Equipment

2|Telephone


Lumbarsupport

8W0012721BG
Fusesandbulbs


Fusepanel©(brown)
4|Audisideassist


5|RearSeatEntertainmentpreparation
7|Vehicleopening/start(NFC)
8|Smartmodule(tank)
11|Auxiliarybatterycontrolmodule



12|Garagedooropener

13|Rearviewcamera,peripheralcameras
14|Righttaillights
16|Rightsafetybelttensioner



Fusepanel()(red)
No.|Equipment


Sound-amplifier
AdBlueheating
Trailerhitch(rightlight)
Trailerhitch
Trailerhitch(leftlight)
Trailerhitch(socket)
10|Sportdifferential
11|AdBlueheating




WO}/@OlIN/M]wi)n


Bulbs
Replacinglightbulbs
Foryoursafety,werecommendthatyouhave
yourauthorizedAudidealerreplaceanybulbsfor
you.
Itisbecomingincreasinglymoreandmorediffi-
culttoreplacevehiclelightbulbssinceinmany
cases,otherpartsofthecarmustfirstbere-
movedbeforeyouareabletogettothebulb.
Thisappliesespeciallytothelightbulbsinthe
frontofyourcarwhichyoucanonlyreach
throughtheenginecompartment.
Sheetmetalandbulbholderscanhave sharp
edgesthatcancauseseriouscuts,partsmustbe
correctlytakenapartandthenproperlyput back
togethertohelppreventbreakageof partsand
longtermdamagefromwaterthatcanenter
housingsthathavenotbeenproperlyresealed.
Foryoursafety,werecommendthatyouhave
yourauthorizedAudidealerreplaceanybulbsfor
you,sinceyourdealerhasthepropertools,the
correctbulbsandtheexpertise.
Gasdischargelamps(Xenonlights):
Duetothehighelectricalvoltage,havethebulbs
replacedbyaqualifiedtechnician.Headlights
withXenonlightareidentifiedbythehighvolt-
agesticker.
LEDheadlights*
LEDheadlightsrequirenomaintenance.Please
contactyourauthorizedAudidealerifabulb
needstobereplaced.

ZAWARNING
ChangingXenonlampswithoutthenecessary
equipmentcancauseseriouspersonalinjury.
—Bulbsarepressurizedandcanexplodewhen
beingchanged.Potentialriskofinjury!
—Onvehiclesequippedwithgasdischarge
bulbs(Xenonlight)life-threateninginjuries
canresultfromimproperhandlingofthe
high-voltageportionsofsuch lamps!
—OnlyyourauthorizedAudidealerorquali-
fiedworkshopshouldchangethebulbsin
gasdischargelamps.Therearepartswith
sharpedgesontheopeningsandonthe
bulbholdersthatcancauseseriouscuts.If
youareuncertainaboutwhattodo,havethe
workperformedbyanauthorizedAudideal-
er orqualifiedworkshop.Seriouspersonal
injurymayresultfromimproperlyper-
formedwork.
G)Tips
—Ifyoustillpreferto replacethelightbulbs
yourself,beawarethattheenginecompart-
mentisahazardousareatoworkin>A\in
Workingintheenginecompartmenton
page309.
—ItisbesttoaskyourauthorizedAudidealer
wheneveryouwanttochangeabulb.


361

Emergencysituations

Emergencysituations
General
Thischapterisintendedfortrainedemergency
crewsandworkingpersonnelwhohavethenec-
essarytoolsandequipmenttoperformthese
operations.
Startingbypushingor
towing
@)Note
Vehicleswithanautomatictransmission
cannotbestartedbypushingortowing.
Startingwithjumper
cables
Ifnecessary,theenginecanbestartedbycon-
nectingittothebatteryofanothervehicle.
Iftheengineshouldfailtostartbecauseofadis-
chargedorweakbattery,thebatterycanbecon-
nectedtothebatteryofanothervehicle,usinga
pairofjumpercablestostarttheengine.
Jumpercables
Useonlyjumpercablesofsufficientlylargecross
sectiontocarrythestartercurrentsafely.Refer
tothemanufacturer'sspecifications.
Useonlyjumpercableswithinsulatedterminal
clampswhicharedistinctlymarked:
plus(+)cableinmostcasescoloredred
minus(-)cableinmostcasescoloredblack.


creasestheriskofanexplosionandchemi-
calburns.Afterjumpstartingthevehicle,
drivetoanauthorizedAudidealerorauthor-
izedAudiServiceFacilityimmediatelyto
havethevehiclebatterychecked.
—Donotallowbatteryacidtocontacteyesor
skin.Flushanycontactedareawithwater
immediately.
—Improperuseofaboosterbatterytostarta
vehiclemaycause anexplosion.
—Vehiclebatteriesgenerateexplosivegases.
Keepsparks,flameandlightedcigarettes
awayfrombatteries.
—Donottrytojumpstartanyvehiclewitha
lowacidlevelinthebattery.
— Thevoltageoftheboosterbatterymustalso
havea12-Voltrating.Thecapacity(Ah)of
the boosterbatteryshouldnotbelower
thanthatofthedischargedbattery.Useof
batteriesofdifferentvoltageorsubstantial-
lydifferent“Ah”ratingmaycause anexplo-
sionandpersonalinjury.
—Neverchargeafrozenbattery.Gastrapped
intheicemaycause anexplosion.
—Neverchargeoruseabatterythathasbeen
frozen.Thebatterycasemayhave beweak-
ened.
—Useofbatteriesofdifferentvoltageorsub-
stantiallydifferentcapacity(Ah)ratingmay
causeanexplosionandinjury.Thecapacity
(Ah)oftheboosterbatteryshouldnot be
lowerthanthatofthedischargedbattery.
—Beforeyoucheckanythingintheengine
compartment,alwaysreadandheedall
WARNINGS&page309.


Z\WARNING
Batteriescontainelectricity,acid,andgas.
Anyofthese cancauseveryseriousorfatalin-
jury.Followtheinstructionsbelowforsafe
handlingofyourvehicle’sbattery.
—Alwaysshieldyoureyesandavoidleaning
overthebatterywheneverpossible.
—Adeadbatterycanfreezeattemperatures
around
32°F(0°C).Ifthevehiclebatteryis
frozen,youmustthawitbeforeconnecting
thejumpstartcables.Ifyoudonot,thisin-

362
C)Note
—Applyingahighervoltageboosterbattery
willcauseexpensivedamagetosensitive
electroniccomponents,suchascontrol
units,relays,radio,etc.
—Theremustbe noelectricalcontactbetween
thevehiclesasotherwisecurrentcouldal-
readystarttoflowassoonasthepositive
(+)terminalsareconnected.

8W0012721BG
Emergencysituations

@Tips
Thedischargedbatterymustbeproperlycon-
nectedtothevehicle'selectricalsystem.
Whenjumpstartingorchargingthebattery,
neverconnectthenegativegroundcableto
thebatterynegativepostbecausethebattery
managersystemmustbeabletodetect the
battery'sstateofcharge.Alwaysconnectthe
negativegroundcabletothenegativeground
postofthebatterymanagercontrolunit.
Usingthejumpstart
cable
Bothjumpstartcablesmustbeconnectedinthe
correctorder.

Fig.282Enginecompartment:connectorsforjumpstart
cablesandacharger

Fig.283Jumpstartingusingabatteryinanothervehicle:
@-providingcurrent,@)-drained
Pleasenotethattheconnectingprocessforthe
jumpstartcablesdescribedbelowisintendedfor
whenyourvehicleisbeingjumpstarted.
Vehiclewithdrainedvehiclebattery
>Set theparkingbrakeandselectthe“P”(Park)
selectorlever position*.

>Switchtheignitionandallelectricalequipment
off.
Connectingthepositivecable(red)tothe
positiveterminal
>Opentheredcoveronthepositiveterminal
>fig.282.
1.Secureoneendofthepositivecable(red)to
thejumpstartpin>fig.283@(pinunder
theredcover=“positive”)onthevehiclethat
needstobestarted@).
2.Securetheotherendofthepositivecable
(red)tothepositiveterminal@)onthebat-
teryprovidingthecurrent@).
Connectingthenegativecable(black)tothe
negativeterminal
3.Secureoneendofthenegativecable(black)
tothenegativeterminal@)onthebattery
thatisprovidingthecurrent@).
4.Securetheotherendofthenegativecable
(black)tothejumpstartpin@(hexheadpin
=“negative”)onthevehiclethatneedstobe
started ®).
Startingtheengine
»Starttheengineinthevehicleprovidingthe
jumpstart@andletitrunatidle.
>Nowstarttheengineonthevehiclewiththe
drainedbattery@).
>Iftheenginedoesnotstart,stopthestarting
procedureafter10secondsandthenrepeatit
afterapproximately30seconds.
»Oncetheenginewiththedrainedvehiclebat-
teryhasbeenstarted,removethecablesinthe
reverseorderfromthewaytheywereinstalled.
>Closetheredcoveronthepositiveterminal.
Thebatteryisventedtotheoutsidetoprevent
gasesfromenteringthevehicleinterior.Make
surethatthejumperclampsarewellconnected
withtheirmetalpartsin fullcontactwiththe
batteryterminals.

Z\WARNING
Toavoidseriouspersonalinjuryanddamage
tothevehicle,heedallwarningsandinstruc-
tionsofthejumpercablemanufacturer.Ifin
doubt,callforroadservice.>

363

Emergencysituations


—Jumpercables mustbelongenoughsothat
thevehiclesdonottouch.
—Whenconnectingjumpercables,makesure
thattheycannotgetcaughtinanymoving
partsintheenginecompartment.
—Donotbendoverthebatteries-dangerof
chemicalburns!
—Thebatterycelllockingscrewsmustbe
tightenedsecurely.
—Beforeyoucheckanythingintheengine
compartment,alwaysreadandheedall

WARNINGS>page309.

@Note
Improperhook-upofjumpercablescanruin
thegenerator.
—AlwaysconnectPOSITIVE(+)toPOSITIVE
(+),andNEGATIVE(-)toNEGATIVE(-)
groundpostofthebatterymanagercontrol
unit.
—Checkthatallscrewplugsonthebattery
cellsarescrewedinfirmly.Ifnot,tighten
plugspriortoconnectingclamponnegative
batteryterminal.
—Pleasenotethattheprocedureforconnect-
ingajumpercableasdescribedaboveap-
pliesspecificallytothecaseofyourvehicle
beingjumpstarted.Whenyouaregivinga
jumpstarttoanothervehicle,donotcon-
nect
thenegative(-)cabletothenegative
(-)terminalonthedischargedbattery@)
>fig.283.Instead,securelyconnectthe
negative(-)cabletoeitherasolidmetal
componentthatisfirmlyboltedtotheen-
gineblockortotheengineblockitself.If
thebatterythatisbeingchargeddoesnot
vent
totheoutside,escapingbatterygas
couldigniteandexplode!
Towingwithatowtruck
Generalhints
YourAudirequires specialhandlingfortowing.
Thefollowinginformationistobeusedbycom-
mercialtowtruckoperatorswhoknowhowtoop-
eratetheirequipmentsafely.
364
—NevertowyourAudi,towingwillcausedam-
agetotheengineandtransmission.
—Neverwrapthesafetychainsorwinchcables
aroundthebrakelines.
—Topreventunnecessarydamage,yourAudi
mustbetransportedwithaflatbedtruck.
—Toloadthevehicleontotheflatbed,use the
towingloopfoundinthevehicletoolsandat-
tachtothefrontorrearanchorage>page364
and>page365.

ZXWARNING
Avehiclebeingtowedisnotsafeforpassen-
gers.Neverallowanyonetorideinavehicle
beingtowed,foranyreason.
Fronttowingloop
Onlyinstallthefronttowingloopwhenitis
needed.




Fig.284Frontbumper:installingthetowingloop
Thethreadedopeningforthetowingloopislo-
catedontherightsideofthefrontbumper.
»Removethetowingloopfromthevehicletool
kit>page348.
>Pressthecap inwardwithbrief,strong pressure
=> fig.284.Thecapwillloosenfromthebump-
er.
>Tightenthetowingloopinthethreadedopen-
inguntilitstopsandthentightenitwitha
wheelwrench.
>Afterusing,placethetowingloopbackinthe
vehicletoolkit.

ZA\WARNING
Ifthetowingloopisnottighteneduntilit
stopswheninstalling,thethreadsmaybe>

Emergencysituations

>Adjustliftingarmsofworkshophoistorfloor
jack tomatchvehicleliftingpoints.
> Insertarubberpadbetweenthefloorjack/
workshophoistandtheLiftingpoints.
Ifyoumustliftyourvehiclewithafloorjack to
workunderneath,besurethevehicleissafely
supportedonstandsintendedforthispurpose.
Frontliftingpoint
Theliftingpointislocatedonthefloorpanrein-
forcementaboutatthesamelevelasthejack
mountingpoint>fig.287.Donotliftthevehi-
cleattheverticalsillreinforcement.
Rearliftingpoint
Theliftingpointislocatedontheverticalrein-
forcementofthelowersillfortheonboardjack
>fig.288.
Liftingwithvehiclejack
Referto>page352.

ZA\WARNING
—Toreducetheriskofseriousinjuryandvehi-
cledamage.
—Alwayslift thevehicleonlyatthespecial
workshophoistandfloorjackliftpointsil-
lustrated>fig.287and>fig.288.
—Failuretoliftthevehicleatthesepoints
couldcausethevehicletotiltorfallfroma
lift ifthereisachangeinvehicleweight
distributionandbalance.Thismighthap-
pen,forexample,whenheavycomponents
suchastheengineblockortransmission
areremoved.
—Whenremovingheavycomponentslike
these,anchorvehicletohoistoraddcorre-
spondingweightstomaintainthe centerof
gravity.Otherwise,thevehiclemighttiltor
slipoffthehoist,causingseriouspersonal
injury.

()Note
—Beawareofthefollowingpointsbeforelift-
ingthevehicle:
—Thevehicleshouldneverbeliftedor
jackedupfromunderneaththeengineoil
366
pan,thetransmissionhousing,thefront
or rearaxleorthebodysidemembers.
Thiscouldleadtoseriousdamage.
—Toavoiddamagetotheunderbodyor
chassisframe,arubberpadmustbein-
sertedbetweenthefloorjackandthelift
points.
—Beforedrivingoveraworkshophoist,
checkthatthevehicleweightdoesnot
exceedthepermissibleliftingcapacity of
thehoist.
—Beforedrivingoveraworkshophoist,en-
surethatthereissufficientclearancebe-
tweenthehoistandlowpartsoftheve-
hicle.