light AUDI S4 2019 Owners Manual

Tableofcontents

AboutthisOwner'sManual......
SUIMIMAFY:« «225%:222%:seenseos
QuikaCCESShis:6 iesia6weesasewe
Cockpitoverview.............-0000-5
Indicatorlightsoverview...........0..
Displayandoperation............
Instrumentcluster...............
Instrumentclusteroverview...........
Coolanttemperatureindicator.........
Tachometer.........0.0 eeeeeeee
Fulellevélse.:2wessysewssoeeesoees
Odometersiceosisiecsoreseseemeeomens
Multifunctionsteeringwheelplus......
Multifunctionsteeringwheel..........
Vehiclefunctions«csv.eeveeweveo
MessageS...0...eeeeee
Head-updisplay..................
Description...............0..000000.
Startinganddriving.............
Openingandclosing.............
Centrallocking..................000-
Luggagecompartmentlid.............
Childisatiety,LOKsecnsicex +emersin« iwnisne+oisens
PowerwindowS............000e0eee
Sliding/tiltingsunroof................
Panoramicglassroof.................
Valetparking............-.000eee eee
Garagedooropener........eeeeeeneee
LightsandVision.................
EXteriorlightingsasy ¢sewszoeees2eee
Interiorlightingie:+«sewssswesseeee
Vision...eeeee
Windshieldwipers...............0005
Digital.compass':«sci:«5eewseemeeeeee
FROMUESCALS cnnisens6 &casiseiswoeeocins© #somes&ot
Headrestraints...........00.00eee eee
MEIOryFUTICEION«ccs: ©nem&oaesyee
co
©
©
10
13
13
13
14 14
1515 15
18
19
21
2727
28
28
28
35
40
4142 43 43
44
4747
50
SL
53
56 58 58 58 59 60
Stowingandusing...............62
Ashtray...6.6ceceeeeeeeeeeeee62
Cigarettelight@r’:secsssnews2 2sewsxee62
POWEPSOUNCESsisiccacocnciveneoooreswvaero62
Storage...eeeeeeeee63
Luggagecompartment...............64
ROOPPACKE.5 &income«wvsenvavewaaminesawaraww70
Warmandcold...................va
Climatecontrolsystem...............ZA
3-zonedeluxeautomaticclimatecontrol.72
Steeringwheelheating...............74
BGRAINGE:&csevessa 6smswes5 &eueenceooareaswoaa76
Generalinformation.................76
STEERING&qua5=nowy2 &OEEEEReste7
ShiftingintoGeticvssecssocomersveoe77
Startingandstoppingtheengine.......78
Start/StopSystem«exessseveaxoesge80
Electromechanicalparkingbrake.......82
Starting todrive.......2...eeeeee83
DrivingOfffOad«2e0:: =2ae8semeeeseee84
Automatictransmission..............85
Trailertowing....................93
Drivingwithiatrailers«sae«»sausocaw93
Driverassistance.................95
Assistsystems...................95
Speedwarningsystem..............--95
Cruise controlsystem.............0-.95
Camera-basedtrafficsignrecognition...97
WeaPeCHIM)Hawcsis&wsaeewnss«suawessa xssieoants99
Predictiveefficiencyassist.............100
Audi adaptivecruisecontrol...........102
Audiprevsensess=sscosx 6sewssveaeooawe112
Audiactivelaneassist................117
AudiSidéSSSiStisy: «qwax:« 3wmee2smeme= 2121
Audidriverselect)s«isisiisnsa vaave126
Parkingaid.......................129
Generalinformation.................129
Rearparkingsystem............-.4..130
Parkingsystemplus.............-.05.130
Rearviewcamerasacs< .eeuisseesoes132
PeripheralcameraS........0.02.eee133

8W0012721BG
Quickaccess

COOHO®H
O
®® O8
O®@
OOOOOOO
® ®
sideassistdisplays,warningabout
exitingthevehicle..............
Doorhandle
Centrallockingswitch...........
Memorybuttons...............
Vent
Thumbwheelforvent
Leverfor:
—Turnsignalsandhighbeams....
—Highbeamassistant..........
—Active laneassist.............
—Trafficjamassist.............
Multifunctionsteeringwheelwith:
—Hornbe
—Driver'sairbag............05.
—Driverinformationsystemcon-
trols..0...eeeeee eee
—Audio/video,telephone,naviga-
tion,andvoicerecognitioncon-
Hols!2 amossesvncmon55eon6owas


—Shiftpaddles................
Instrumentcluster.............
Resettingthetripodometer......
Windshieldwashersystemlever..
Emergencyflashers.............
Kit@éairbag!ss=esiss ¢ceroseeSees
Adjustablesteeringcolumn......
Leverfor:
—Cruisecontrolsystem.........
—Adaptivecruisecontrol........
Instrumentillumination.........
DatalinkconnectorforOnBoard
DiagnosticSystem(OBDII)......
Hoodirelease®« «cssiswsx xasowinex #awewees
Buttonforswitchingthehead-up
displayon/off,adjustingthe height.
LightiSWItehevesseseesx eoeenwcee
Buttonsfor:
—All-weatherlights............
—Rearfoglights...............
Switchforluggagecompartment
lidoo.eee
Powerexteriormirroradjustment.
—[&/steeringwheelheatingbutton.
121
32
60
48 48
117109
265
15,18
17,18
17
88
13 15
53
49
277
77
95
102
51
309 310
27
47 47 47
35
5
OOO
OOOOO®
OO@O®
@®
@
Powerwindows................
Childsafetylock...............
Infotainmentsystemdisplay.....
Lockableglovecompartment.....
DrivesforCD,DVD,SIMcards....
Frontpassenger'sairbag........
ValetParkingfunction..........
Climatecontrolsystem..........
Dependingonequipment,buttons
for:
—driveselect...............04.
—Start/Stopsystem............
—ElectronicStabilizationControl
(30)eeee
SUPATKINAIG:sssswsvsuaeseeweuecs«
—Hilldescentassist............
—Infotainmentsystemdisplay....
CUPLWOLGENSxssxwane5mens5toe
Centerarmrestwithstoragecom-
partment.Dependingonvehicle
equipment,itmayhave:
—Audimusicinterface..........
—Audiphonebox...............
Startingtheenginewhenthereisa
malfunction..............0008e
Electromechanicalparkingbrake..
Dependingonequipment:
—Selectorlever(automatictrans-
MISSION)!« 2snowssmeeeoememeag
—Gearshiftlever(manualtransmis-
sion)
@Infotainmentunit..............
@[STARTENGINESTOP]button....


@)Audimusicinterface............
G@)Tips
Infotainmentsystemon/offbutton.
41
40
146
63
221 265
43
71
126
80
139 129140146
62 63
145
226
174
79
82 85
145
78
226
Sometheequipmentlistedhereisonlyinstal-
ledincertainmodelsorisavailableasanop-
tion.

Quickaccess

Indicatorlightsoverview
Theindicatorlightsintheinstrumentcluster
blinkorturnon.Theyindicatefunctionsormal-
functions.
Messagesmayappearwithsomeindicatorlights.
Awarningsignalwillsoundatthesametime.
Theindicatorlightsandmessagesmaybecov-
ered byotherdisplays.Toshow themagain,se-
lectthesecondtabformessageswiththemulti-
functionsteeringwheel>page15or
=>page18.
Someindicatorlightsinthedisplaycandisplayin
severalcolors.

MMeTeelemlis
Ifthewaorindicatorlightturnson,check
themessageintheinstrumentcluster.
OTA]
Someindicatorlightsturnonbrieflyasafunction
checkwhenyouswitchtheignitionon.Thesesys-
temsaremarkedwithaVinthefollowingtables.
Ifoneoftheseindicatorlightsdoesnotturnon,
thereisamalfunctioninthatsystem.
Yourvehiclehaseitheramonochromedisplayor
amulticoloreddisplay,dependingonvehicle
equipment.Someindicatorlightsappearwhite
onamonochromedisplay.TheBoWcentral
indicatorlightturnsonatthesametimetoindi-
catethepriorityoftheseindicatorlights.
Thefollowingindicatorlightsmaybeavailable,
dependingonthevehicleequipment:

Redindicatorlights
Centralindicatorlight
=>page10,
Audipresense
=>page112
Brakesystem¥
=>page21
Brakesystem¥
=>page21
10

Electromechanicalparkingbrake
=>page 22
Electromechanicalparkingbrake
=>page22
Coolingsystem
=>page 22
Engineoilpressure
>page312
Engineoillevel(MIN)
=>page312
Electricalsystem
>page317
Safetybelt
=>page23
Electromechanicalsteering
=>page142
Steeringlock
=>page23
Enginestartsystem
=>page23
Transmission(automatictransmis-
sion)
=>page90,
Clutch(manualtransmission)
=>page23
Hood
=>page24
Adaptivecruisecontrol/
=>page105
Trafficjamassist
=>page109
Drivesystem
=>page24


Yellowindicatorlights
Centralindicatorlight
=>page10
ElectronicStabilizationControl
(ESC)
=>page24
ElectronicStabilizationControl
(ESC)¥
=>page24

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

Instrumentcluster

Instrumentclusteroverview
Theinstrumentclusteristhecentralinformationcenterforthedriver.
|
sew-0114]
Beolel
12/5/2015

B8W-0115.
e
ERT
aPILYploy
CeufFer

Fig.4Instrumentclusteroverview(Audivirtualcockpit)

a)Enginecoolanttemperaturegauge.148)Speedometer
)Tachometer........ceceeeeeee14)Leftadditionaldisplay
—WithOFFstatusindicator......78Theremaybeadditionalindicatorlightsinthe
78,80tachometer@),thespeedometer©),thestatus
BE)Tabarea:=ncewerp« =gumg 2oe15line©and,dependingontheinstrumentcluster,
(4)Centralareawithaboveorbelowthecentralarea(4).
—WithREADYstatusindicator...
8W0012721BG

13
~Driverinformationsystem......15,18Thefollowingpageswillprimarilyshowillustra-
~Indicatorlights............--10tionsofthemulti-coloranaloginstrumentclus-
S)Statusline(displayedononeortwoter*.Thedisplayand/orpositionoftheelement
lines)shownmayvaryinmonochrome instrumentclus-
(6)Speedometer/conveniencedisplayters orintheAudivirtualcockpit*.>
MeFUCLUEVEL,scram¢ sseme4 xatessoeee15

Instrumentcluster

Certaininstrumentclustercontentcanalsobe
displayedinthehead-updisplay*>page27.

ZAWARNING
Donotassumetheroadsarefreeoficebased
ontheoutsidetemperaturedisplay.Beaware
thattheremaybeiceonroadsevenwhenthe
outsidetemperatureisaround41°F(+5°C)
andthaticecanincreasetheriskofaccidents.

@)Tips
— Depending onvehicleequipment,thein-
strumentillumination(needlesandgauges)
mayturnonwhenthelightsareoffandthe
ignitionisswitchedon.Theilluminationfor
thegaugesreducesautomaticallyandeven-
tuallyturnsoffasbrightnessoutsidein-
creases.Thisfunctionremindsthedriverto
turnthelowbeamsonattheappropriate
time.
—Youcanselecttheunitsusedfortempera-
ture,speed,andothermeasurementsinthe
Infotainmentsystem>page240.
—Ifyourvehicleisstationaryorifyouaredriv-
ingatverylowspeeds,thetemperaturedis-
playedmaybeslightlyhigherthantheac-
tualtemperatureoutsideduetotheheatra-
diatingfromtheengine.
—Attemperaturesbelow41°F(+5°C),a
snowflakesymbolappearsinfront ofthe
temperaturedisplay>A\.
Coolanttemperature
indicator
Thecoolanttemperaturedisplay@>page13,
fig.3or>page13,fig.4onlyfunctionswhen
theignitionisswitchedon.Toreducetheriskof
enginedamage,pleaseobservethefollowing
notesaboutthetemperatureranges.
Coldrange
IfonlytheLEDsatthebottomofthegaugeturn
on,theenginehasnot reachedoperatingtem-
peratureyet.Avoidhighenginespeeds,fullaccel-
eration,andheavyengineloads.
14
Normalrange
Theenginehasreacheditsoperatingtempera-
tureoncetheLEDsuptothecenterofthegauge
turnon.Ifthegindicatorlightintheinstru-
mentclusterdisplayturnson,thecoolanttem-
peratureistoohigh>page22.
@)Note
—Auxiliaryheadlightsandotheraccessoriesin
frontoftheairintakeimpairthecoolingef-
fectofthecoolant.Thisincreasestheriskof
theengineoverheatingduringhighoutside
temperatures andheavyengineload.
—Thefrontspoileralsohelpstodistribute
coolingaircorrectlywhiledriving.Ifthe
spoilerisdamaged,thecoolingeffectwill
beimpairedandtheriskoftheengineover-
heatingwillincrease.SeeanauthorizedAu-
didealerorauthorizedAudiServiceFacility
forassistance.
Tachometer
Thetachometerdisplaystheenginespeedinrev-
olutionsperminute(RPM).
Thebeginningoftheredzoneinthetachometer
indicatesthemaximumpermissibleenginespeed
forallgearsoncetheenginehasbeenbrokenin
andwhenitiswarmeduptooperatingtempera-
ture.Before reachingthiszone,youshouldshift
intothenexthighestgear,selectthe"D/S"selec-
torleverposition,orremoveyourfootfromthe
acceleratorpedal.
@)Note
Theneedleinthetachometer2)>page13,
fig.3or>page13,fig.4mayonlybeinthe
redareaofthegaugeforashorttimeorthere
isariskofenginedamage.Thelocationwhere
theredzonebeginsvariesdependingonthe
engine.
@)Forthesakeoftheenvironment
Upshiftingearlyhelpsyoutosavefuelandre-
ducesoperatingnoise.

8W0012721BG
Instrumentcluster

Fuellevel
Thedisplay>page13,fig.3orpage13,
fig.4onlyfunctionswhentheignitionisswitch-
edon.Whenthedisplayhasreached thereserve
mark,aredLEDturnsonandtheAlindicator
lightturnson>page24.
Forthetankcapacityinyourvehicle,refertothe
TechnicalData>page373.
(@)Note
Neverdriveuntilthetankiscompletelyemp-
ty.Theirregularsupplyoffuelthatresults
fromthatcancauseenginemisfires.Uncom-
bustedfuelwillthenentertheexhaustsys-
tem.Thiscancauseoverheatinganddamage
tothecatalyticconverter.
Odometer

Fig.5Instrumentcluster: odometerandresetbutton
Tripodometerandodometer
Thetripodometershowsthedistancedriven
sinceitwaslastreset.Itcanbeusedtomeasure
shortdistances.
Thetripodometercanberesettozerobypress-
ingthe|]resetbutton.


Theodometershowsthetotaldistancethatthe
vehiclehasbeendriven.
Malfunctionindicator
Ifthereisamalfunctionintheinstrumentclus-
ter,DEFwillappearinthetripodometerdisplay.
Havethemalfunctioncorrectedassoonaspossi-
ble.

@Tips
Theunitsofmeasurementcanbesetinthe
Infotainmentsystem>page240.
Multifunctionsteering
wheelplus
Appliesto:vehicleswithmultifunctionsteeringwheelplus


Fig.6Driverinformationsystemdisplay

Fig.7Leftsideofmultifunctionsteeringwheel
Requirement:theignitionmustbeswitchedon.
Thedriverinformationsystemcontains multiple
tabs@°fig.6thatdisplayvariousinformation
©.
Thefollowingtabsmaybeavailable,depending
onvehicleequipment:



FirsttabVehiclefunctions>page19
SecondMessages
tab?)
ThirdtabRadio>page157
Media>page157>
15

Instrumentcluster


Fourthtab|Telephone*>page158

FifthtabNavigation*>page159
Map*>page160

a)Thistabisonlyvisiblewhenthereisat leastoneindicator
lightormessagedisplayed.

@®Button[<>

—Switchingtabs:pressthe[<>]buttonrepeated-
lyuntilthedesiredtabisshown(forexample,
Radio).


@[VIEW]button
Switchingviewsorreducingthedisplay
=>page17.

©Button[=
Returntofunctionsathigherlevels.
Controlbuttons
©Controlbuttons[3]and
Open/closetheselectionmenuoroptionsmenu
=>page16.
@Leftthumbwheel
—Selectingafunctioninamenu/list:turnthe
leftthumbwheeltothedesiredfunction(forex-
ample,selectingafrequency).
—Confirmingaselection:presstheleftthumb-
wheel()>fig.7.
—Zoomingin/outonthemap:whenamapis
displayed,turntheleftthumbwheeltozoomin
andoutonthemap.

Appliesto:vehicleswith multifunctionsteeringwheelplus



cued
ETaeesanaso)
Peasealas






Fig.8Selectionmenuandoptionsmenuview
Leftcontrolbutton
—Openingandclosingtheselectionmenu:press
therespectiveleftcontrolbuttononthesteer-
ing
wheel>fig.8.Youcanselectandconfirma
functionintheselectionmenuusingtheleft
thumbwheel(forexample,selectingafrequen-
cyband).
Rightcontrolbutton
—Opening/closingtheoptionsmenu:pressthe
respectiverightcontrolbuttononthesteering
16
wheel>fig.8.Youcanchangeanycontext-de-
pendentfunctionsandsettingsusingtheleft
thumbwheel(forexample,additionalstation
information).
(i)Tips
Theavailabilityofaselectionmenuoroptions
menudependsonthefunctionthatisselect-
ed.

8W0012721BG
Instrumentcluster

@Operatingthedriverinformationsystem
Thedriverinformationsystemcontainsmultiple
tabs@>page15,fig.6thatdisplayvarious
information@)>page15,fig.6.
Thefollowingtabsmaybeavailable,depending
onvehicleequipment:




FirsttabOn-boardcomputer>page19
SecondMessages
tab?)
ThirdtabRadio>page157
Media>page157
Fourthtab|Telephone>page158

a)Thistabisonlyvisiblewhenthereisat leastoneindicator
lightormessagedisplayed.

—Switchingtabs:pressthe[MODE]button
>fig.12onthemultifunctionsteeringwheel
repeatedlyuntilthedesiredtabisdisplayed.
—Selectingafunctioninthemenu/list:turnthe
leftthumbwheelonthemultifunctionsteering
wheeltothedesiredfunction.
—Confirmingaselection:presstheleftthumb-
wheelonthemultifunctionsteeringwheelto
confirmyourselection.
—Scrollingwithinthelists:turntheleftthumb-
wheelonthemultifunctionsteeringwheel
quicklytoscrollwithinthelists.


@Button[»
—Switchingthevoicerecognitionsystemon:
brieflypressthe[2]button>fig.13.Saythe
desiredcommandaftertheBeep.
—Switchingthevoicerecognitionsystemoff:
pressandholdthe|]button.Or:saythecom-
mandCancel.




Formoreinformationaboutthevoicerecognition
system,see>page164,Voicerecognitionsys-
temor=page241.
@®Rightthumbwheel
The
volumeofanaudiosourceorasystemmes-
sage(suchastrafficannouncements)canbedi-
rectlyadjustedduringtheaudiooutput.
—Increasingordecreasingthevolume:turnthe
rightthumbwheel>fig.13upordown.
—Mutingorpausing:turntherightthumbwheel
down.Or:presstherightthumbwheel.
—Unmutingorresuming:turntherightthumb-
wheelupward.Or:presstherightthumbwheel.
Vehiclefunctions
LOTati
Thetripcomputerisdisplayedinthefirsttabof
thedriverinformationsystem.Additionalvehicle
functionscan beaccesseddependingonthevehi-
cleequipment.
>Presstheleftcontrolbutton.
—On-boardcomputer>page 19
—Laptimes>page99
—Statistics>page99
—Layout>page17
Mit)meeyuayLele

Fig.14Instrumentcluster:fuelconsumptiondisplay
Resettingvaluesto zero
Requirement:theFuelconsumption,Short-term
memory,orLong-termmemorydisplaymustbe
selected.
>Toresetthevaluesintherespectivememoryto
zero,pressandholdtheleftthumbwheelon
themultifunctionsteeringwheelforonesec-
ond.Or
>Onthemultifunctionsteeringwheel,select:
therightcontrolbutton>Resetvalues*.
Inthetripcomputer,youcancallupthefollow-
ingdisplaysoneaftertheotherbyturningthe
leftthumbwheelonthemultifunctionsteering
wheel:
19

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