brakes AUDI A4 2019 Owner's Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2019, Model line: A4, Model: AUDI A4 2019Pages: 392, PDF Size: 99.53 MB
Page 112 of 392

Assistsystems
Iftrafficjamassistwasdeactivatedthroughthe
Infotainmentsystem,youcancontinueoperating
theactivelaneassistusingthe>fig.111button
=>page118.Thetrafficjamassistfunctionsare
nolongeravailable.
Requirementsforusingtrafficjamassist:
—Trafficjamassistmustbe switchedonintheIn-
fotainmentsystem.
—Adaptivecruisecontrolmustbe switchedon
and
active>page105.
Alwaysswitchofftrafficjamassistinthe
followingsituations:
—Whenincreasedattentionisneededfromthe
driver
—Inpoorweatherconditionssuchassnowor
heavyrain
—Whendrivingonroadsinpoorcondition
—Inconstructionzones
—Incitydriving
Trafficjamassistavailability:
IfyouareintheDriverassistancedisplayinthe
instrumentcluster,theindicatorlightandthe
messageTrafficjamassistavailableappearsif
trafficcongestionisdetected.Youcanopenthe
Driverassistancedisplayusingthemultifunction
steeringwheelbuttons>page15.Toactivate
trafficjamassist,youmustpressthe>fig.111
buttonandswitchontheadaptivecruisecontrol
=>page105.
Indicatorlights
BandBA-trafficjamassistisswitchedon.Ve-
hiclesdrivingaheadweredetected.Yourvehicle
adaptswhiledriving>fig.112.
B-Trafficjamassistswitchesoffifthedriver
doesnottakeoversteeringaftermultipledriver
interventionrequests.Thesystembrakestheve-
hicleuntilitisstationary.
ZA\WARNING
Alwayskeepyourhandsonthesteeringwheel
soyoucanbereadytosteeratanytime.The
driverisalwaysresponsibleforstayingina
laneandforassessingtrafficsituations.Read
andfollowthewarningson>A\inGeneralin-
110
formationonpage103.Neverusetrafficjam
assistinthefollowingsituationsoryouwill
increasetheriskofanaccident:
—Drivingoffroadoronunpavedroads.Traffic
jamassistisonlydesignedforuseonpaved
roads.
—Incitydrivingorinconstructionzones
—Oncurvingstretchesofroad.
—Innarrowlanes
—Inuncleartrafficsituationssuchasatinter-
sectionsortollstations
@Tips
Youarenotnecessarilyguidedtothe center
ofyourlane.
PMENaTemelecile)
Appliesto:vehicleswith Audiadaptivecruisecontrol
Thisfunctionmeasuresthetimebetweentheve-
hicledrivingaheadandshowsthisintheinstru-
mentclusterdisplay.
Fig.113Instrumentcluster:distanceindicator/warning
Description
Atspeedsaboveapproximately40mph(65
km/h),thisfunctionmeasuresthedistancetothe
vehicleaheadastime.
>Switchtheadaptivecruisecontroldisplayonin
theinstrumentclusterdisplay>page15.
TheBindicatorlightturnsonifyoufallbelow
thesetdistance.
Settingthewarningthreshold
Youcanset,changeordeletethewarningthresh-
oldintheInfotainmentsystem.
Page 114 of 392

Assistsystems
Thismessageappearsifthedriverdoesnottake
over
steeringaftermultipledriverintervention
requestsandthesystemswitchesoff.Thevehicle
brakesuntilitisstationary.
Trafficjamassist:unavailable.Seeowner's
manual
Thesystemcannolongerensurethatthevehicle
willstayinthelaneandswitchesoff.Haveyour
vehiclecheckedbyanauthorizedAudidealeror
authorizedAudiServiceFacilityifthemalfunc-
tioniscontinuous.
Trafficjamassist:Pleasetakeoversteering!
Thismessageappearsassoonasthesystem
stopsdetectingsteeringactivitywhenthesystem
limitsarereached.Alwayskeep yourhandson
thesteeringwheelsoyoucan bereadytosteerat
anytime.
Trafficjamassist:currentlyunavailable.
Pleasefastenseatbelt
Thesystemswitchesoffwhenthedriver'ssafety
beltisunfastened.
ACC:efficiencyassistnotavailableinthis
country
Theadaptationtospeedlimitsandroutesahead
isnotavailableinthiscountry.
ACC:predictivecontrolcurrentlyunavaila-
ble.Seeowner'smanual
Theadaptationtospeedlimitsandroutesahead
switchesoffatspeedlimitsunder20mph
(30km/h).
Themessagecanalsoappeariftheadaptationto
speedlimitsandroutesaheadhasatemporary
failure.Haveyourvehiclecheckedbyanauthor-
izedAudidealerorauthorizedAudiServiceFacili-
tyifthemalfunctioniscontinuous.
Distancewarning:malfunction!Pleasecontact
Service
Thesystemcannotguaranteethatitwilldetect
vehiclescorrectlyandithasswitchedoff.Thera-
darsensorshaveshiftedorarefaulty.Drivetoan
authorizedAudidealerorauthorizedAudiService
Facilityimmediatelytohavethe malfunctioncor-
rected.
112
Distancewarning:currentlyunavailable.Sensor
view
restrictedduetosurroundings.Seeown-
er'smanual
Thismessageappearsiftheradarsensorviewis
obstructed,forexamplebyleaves,snow,heavy
sprayordirt.Cleanthesensors>page103,
fig.101.
Distancewarning:currentlyunavailable.See
owner'smanual
Thismessageappearsifthesystemhasatempo-
raryfailure.Ifthisoccurs multipletimes,driveto
anauthorizedAudidealerorauthorizedAudi
ServiceFacilityimmediatelytohavethemalfunc-
tioncorrected.
ACC:Pleasefastenseatbelt
Thesystemisnotcompletelyavailableifthedriv-
er'sseatbeltisunfastened.
Stationaryobjectahead
Thismessageappearsifyouwouldliketoswitch
thesystemonandthereisastationaryobjectdi-
rectlyinfront ofyourvehicle.
Dooropen
Thesystemisnotavailablewhenthedooris
open.
Audipresense
Introduction
Appliesto:vehicleswith Audipresense
Withinthelimitsofthesystem,thepresense
functionscaninitiatemeasuresinparticularly
dangeroussituationstoprotectthevehiclepas-
sengersandotherroadusers.
—
Duetotheinterlinkingofvariousvehiclesys-
tems,criticaldrivingsituationscan bedetected
bypresensebasicandmeasuresforpreventa-
tiveoccupantprotectionarecanbeinitiated.
—Thepresensefrontsystemusesthedatafrom
theadaptivecruisecontrol*radarsensorsand
thecameratocalculatetheprobabilityofacol-
lision.Withinthelimitsofthesystem, anim-
pendingcollisionwithvehiclescan bedetected
inbothurbanandruralspeedranges.Inthis
case,thesystemwarnsthedrivervisually,>
Page 115 of 392

8W0012721BG
Assistsystems
acousticallyandwithajerkonthebrakesifnec-
essary.Ifneeded,itcaninitiateapartialorfull
decelerationtoreduce thecollisionspeedorto
avoidthecollisionundercertaincircumstances.
Inconjunctionwithpresensebasic/rear,the
front safetybeltsarealsoreversiblytensioned
whenneeded.Thepresensefrontisalsoactive
whenadaptivecruisecontrol”isswitchedoff.
—Presenserearcontainspresensebasicfunc-
tions.Itusesthedatafromthesideassist*ra-
darsensorsandcalculateswithinthelimitsof
thesystemtheprobabilityofarearendcolli-
sionwiththevehiclebehindyou.Presenserear
isalsoactivewhensideassist*isswitchedoff.
—Withinthelimitsofthesystem,presensecity
usesthecameradataandcandetectanim-
pendingcollisionwithvehiclesandpedestrians.
Inthiscase,thesystemwarnsthedrivervisual-
ly,acousticallyandwithajerkonthebrakesif
necessary.Ifneeded,itcaninitiateafulldecel-
erationtoreducethecollisionspeedorto avoid
thecollisionundercertaincircumstances.In
conjunctionwithpresensebasic/rear,thefront
safety
beltsarealsoreversiblytensionedwhen
needed.
Z\WARNING
Readthegeneralinformationin>A\inGen-
eralinformationonpage103,>A\inGeneral
informationonpage122.
@Tips
—Certainpresensefunctionsswitchoffwhen
drivinginreverse.
— Thepresensefunctionsmaynotbeavaila-
bleifthereisamalfunctionintheESCsys-
temortheairbagcontrolmodule.
—Notethatthereversible belttensioneron
thefrontpassenger'ssidedeactivateswhen
thefrontpassenger'sairbagisdeactivated.
—Switchthepresenseoffwhenyouarenot
usingpublicstreetsorwhenloadingtheve-
hicleontoavehiclecarrier,train,ship,or
othertypeoftransportation.Thiscanpre-
D_Thisisnotavailableinsomecountries.
ventanundesiredinterventionfromthepre
sensesystem.
Audipresensebasic
Appliesto:vehicleswith Audipresensebasic
Thepresensebasicfunctionsareactivatedata
speedofapproximately20mph(30km/h)or
higher.
Thefollowingfunctionscanbetriggeredunder
certainconditionswithinthelimitsofthesys-
tem:
—Tensioningofthesafetybelts(forexample,
duringheavybraking):thefront safetybelts
havereversiblebelttensioners.Ifacollision
doesnotoccur,thesafetybeltswillloosen
slightlyandbereadytotriggeragain.
—Closingthewindowsandsunroof*
—Activationofthe emergencyflashers)
ThemessageAudipresensefy=>page113,
fig.114willwarnyouaboutthedanger.
Audidriveselect*:thetriggertimesareadjusted
dependingonthemodeselected.
CemRicelalg
Appliesto:vehicleswith Audipresensefront
Audipresense
Fig.114Instrumentcluster:approachwarning
Description
Withinthelimitsofthesystem,presensefront
canwarnyouofimpendingcollisionsandinitiate
thecorrespondingbrakingmaneuversorthesup-
portingmeasureswhenavoidingacollision.
113
>
Page 116 of 392

Assistsystems
Ifdetectedintime,thesystemcanrankthedan-
geroussituationascriticalifavehicledriving
aheadbrakessuddenly,ifyourownvehicleisap-
proachingasignificantlyslowervehicleathigh
speedorwhenthereisanoncomingvehicledur-
ingaturningmaneuver.
Ifdetectionisnotpossible,thenpresensefront
doesnotreact.
Warnings
Thesystemrecognizesvariousdangeroussitua-
tions.Theearlywarningoccursif:
—Avehicledrivingaheadbrakessuddenly
—Yourownvehicleapproachesasignificantly
slowervehicleorstationaryvehicleinthedirec-
tionoftravel
Whenthiswarningoccurs,itmayonlybepossi-
bleto avoidacollisionbyswervingorbraking
strongly.ThemessageAudipresenseA
=>fig.114andawarningtonewillwarnyou
aboutthedanger.
Ifyoudonotreactenoughornotatalltoadan-
geroussituationthatwasdetectedbythesys-
tem,presensefrontprovidesassistancebyap-
plyingthebrakes.
If acollisionisimminent,thesystemwillfirst
providean acutewarningbybrakingsharply.You
willalsowarnedbyanindicatorintheinstrument
clusterdisplay>fig.114.Ifyoudonotreactto
theacutewarning,presensefrontcanbrakewith
increasingforcewithinthelimitsofthesys-
tem)).Thisreducesthevehiclespeedinthe
eventofacollision.Atlowvehiclespeeds,pre
sensefrontcaninitiateacompletedeceleration
shortlybeforeacollisionwithavehicledriving
ahead).Ifpresensefrontdeterminesthatyou
arenotbrakingstronglyenoughwhen acollision
isimminent,itcanincreasethebrakingforce.
Thefollowingfunctionstriggerinconjunction
withpresensebasic/rearatcorrespondingvehi-
clespeeds:
—Reversibletensioning ofthefront safetybelts
—Closingthewindowsandsunroof*
D_Thisisnotavailableinsomecountries.
114
—Inflatingthesidebolsters*ontheseatbackrest
Audidriveselect*:dependingonthemodeselect-
ed,thereversiblebelttensioner,theclosingof
thewindowsandsunroof*,andtheinflatingof
thesidebolsters*ontheseatbackrestmaynot
beactive.
Evasivesteeringsupport
Evasive steeringsupporthelpsyouto steerthe
vehiclearoundanobstacleinacriticalsituation.
Ifyouavoidanobstacleaftertheacutewarning,
thentheevasive steeringsupportassistsyouby
applyingslightsteeringadjustmenttocorrect
yoursteeringwheelangleaslongasyouareac-
tivelysteering.Evasive steeringsupportisavaila-
bleatspeedsbetweenapproximately20mph
(30km/h)and90mph(150km/h).
Turnassist
Whenstartingtodriveanduptospeedsofmaxi-
mum6mph(10km/h),theturnassistusesa
brakinginterventiontoreducetheriskofyourve-
hiclecollidingwithanoncomingvehiclewhen
turningleftorright(availableincertaincoun-
tries).Thebrakinginterventioncausesyourvehi-
cletostayinitslane.
Z\WARNING
—Presensefrontcannotovercomethelawsof
physics.Itisasystemdesignedtoassistand
itcannotpreventacollisionineverycircum-
stance.Thedrivermustalwaysintervene.
Thedriverisalwaysresponsibleforbraking
atthecorrecttime.Donotlettheincreased
safetyprovidedtemptyouintotakingrisks.
Thiscouldincreaseyourriskofacollision.
— The systemcandeployincorrectlydueto
system-specificlimits.
—Pleasenotethatthesensorsandthecamera
donotalwaysdetectallobjects or lane
markings.This increasestheriskofanacci-
dent.
Page 118 of 392

Assistsystems
Warnings
Thesystemrecognizesvariousdangeroussitua-
tions.Theearlywarningoccursif:
—Avebhicledrivingaheadbrakessuddenly
—Yourownvehicleapproachesavehicleinfront
ofyouthatistravelingatasignificantlyslower
speedorthatisstationary
—Apedestrianisstandinginthelaneorismov-
ingintothelane
Whenthiswarningoccurs,itmayonlybepossi-
bleto avoidacollisionbyswervingorbraking
strongly.ThemessageAudipresenseA
=>page113,fig.114andawarningtonewill
warnyouaboutthedanger.
Thebrakesmayalsobeappliedasanacutewarn-
ing whenthereisanimpendingcollision.Ifyou
donotreacttotheacutewarning,presensecity
canbraketothepointofcompletedeceleration
withinthelimitsofthesystem.Thisreducesthe
vehiclespeedintheeventofacollision.Themes-
sageAudipresenseAalsoappears.
Thefollowingfunctionsaretriggeredinconjunc-
tionwithpresensebasic/rear:
—Reversibletensioningofthefront safetybelts
—Closingthewindowsandsunroof*
—Inflatingthesidebolsters*ontheseatbackrest
Audidriveselect*:thefunctionisnotactivede-
pendingonthemodeselected.
asbars,railingsorrailcars,andobjectsthat
aredifficulttodetect>A\inGeneralinfor-
mationonpage103.
Z\WARNING
Presensecitymayberestrictedorunavailable
inthefollowingtypesofsituations:
—Inheavyfog,rain,spray,orsnow
—Whentherearevisualobstructions,suchas
glare,reflectionsorvariationsinlight
—Whenitisdark
—Ifthecamerawindoworthewindshieldis
dirty,iced over,damagedorcovered
—Whendrivingonsnow,iceorlooseground
—Incurves
—IftheESCwasrestrictedorswitchedoff
—Whenthedriver'sseatbeltisunfastened
—
Forseveralsecondsafter theignitionis
switchedon
ZAWARNING
—Presensecitycannotovercomethelawsof
physics.Itisasystemdesignedtoassistand
itcannotpreventacollisionineverycircum-
stance.Thedrivermustalwaysintervene.
Thedriverisalwaysresponsibleforbraking
atthecorrecttime.Donotlettheincreased
safetyprovidedtemptyouintotakingrisks.
Thiscouldincreaseyourriskofacollision.
— Thesystemcandeployincorrectlydueto
system-specificlimits.
—Toreducetheriskofanaccident,please
notethatthecameradoesnotalwaysdetect
everyobject.
—Presensecitydoesnotreacttoanimals,
crossing oroncomingvehicles,objectssuch
116
@)Note
Impactsordamagetothecameramounton
thewindshieldcandisplacethesensor.Pre
sensecitycanbeimpairedbythis.Haveanau-
thorizedAudidealerorauthorizedAudiServ-
iceFacilitychecktheirfunction.
G)Tips
—Youcancancelthesystembrakinginterven-
tionifyouaccelerateconsiderablyorswerve
away.
— Keepinmindthatpresensecitycanbrake
unexpectedly.Alwayssecureanycargoor
objects
thatyouaretransportingtoreduce
theriskofdamageorinjury.
—Specificpresensecityfunctionsswitchoff
whentheESCislimitedorswitchedoff
=>page139orthehilldescentassist*is
switchedon>page140.
—Whenthereisamalfunctioninthecamera,
thepresensecityfunctionsalsoswitchoff.
Page 127 of 392

8W0012721BG
Assistsystems
meritia
Appliesto:vehicleswithrearcross-trafficassist
RAH-8918
Fig.126Infotainmentsystem:rearcross-trafficassistdis-
play
Activatingrearcross-trafficassist
Therearcross-trafficassistisactivatedautomati-
callyifyouturnontheparkingaid>page129or
shiftintoreversegear.
Therearcross-trafficassistcanwarnofapoten-
tialcollisionwithapproachingcross-trafficwhen
drivinginreverseatspeedsuptoapproximately
9mph(15km/h).Withinitslimits,thesystem
monitorstheareasbehindandnexttothevehicle
usingtheradarsensorswhenleavingaparking
space>page122,fig.122.Movingobjectsthat
areapproaching,suchascars,aredetected
>fig.125.
Ifthesystemdetectscriticalcrosstrafficwhen
backingoutofaparkingspace,itwillreactasfol-
lows:
—Visualindicator: anindicatorappearsintheIn-
fotainmentsystemdisplaywitharedarrow
symbol.Thearrowpointsinthedirectionfrom
whichtheobjectisapproaching>fig.126.
—Audiblewarningsignal:acontinuoustonemay
soundasanadditionalindicatorwhendrivingin
reverse.
—Automaticbrakeactivation:abriefactivation
ofthe brakesmayalsowarnyouofapotential
collisionwithanapproachingobject.
Theaudiblewarningsignalandtheautomatic
brakeactivationoccuronlywhendrivinginre-
verse.
ZAWARNING
—Therearcross-trafficassistisanassistsys-
temandcannotpreventacollisionbyitself.
Thedrivermustalwaysintervene.Thedriver
isalwaysresponsibleforbrakingatthecor-
recttime.
—Pleasenotethattherearcross-trafficassist
mayactivatethebrakesunexpectedly.Se-
cureanycargothatyouaretransportingto
reducetheriskofdamageorinjury.
—Automaticbrakingcannotbetriggered
againwithin20secondsafteranautomatic
brakeactivation.
—Ifthereisanacousticwarningsignalfrom
therearcross-trafficassist,thentheparking
systemmaynotwarnyouofdetectedobsta-
clesundercertaincircumstances.
— Theviewoftheradarsensorsmaybeim-
pairedbyleaves,snow, heavysprayordirt.
Cleantheareainfrontofthesensors
>page122,fig. 122.
Z\WARNING
—Therearcross-trafficassistwillnotprovide
alertsaboutpeopleandcannotwarnyou
abouteverytypeofapproachingobjects,
suchascyclists.Alwaysmonitorthetraffic
aswellasthevehicle'ssurroundingswithdi-
recteyecontact.
—Therearcross-trafficassistwillnotprovide
alertsifyourvehicleisparallelordiagonally
parkedorifyourvehicleispulledtoofarin-
totheparkingspaceso thatitishiddenby
adjacentvehicles.
@)Note
Alsoreadtheinformationin©inGeneral
informationonpage123.>
125
Page 128 of 392

Assistsystems
@Tips
—Youcancanceltheautomaticbrakeactiva-
tionwithincreasingbrakingforceifyouap-
plythe brakesyourselforaccelerateconsid-
erably.
—Insomesituations,rearcross-trafficassist
maywarnyouevenifthereisnocrosstraffic
ina criticalarea,forexamplewhenbacking
into aparkingspaceormaneuvering.
—Therearcross-trafficassistalsoswitchesoff
whenyouswitchofftheESC.
—Foranexplanationonconformitywiththe
FCCregulationsinthe UnitedStatesandthe
IndustryCanadaregulations,see
=>page370.
Appliesto:vehicleswithAudisideassist
Amessageappearsintheinstrumentclusterdis-
playifthesideassistswitchesoffautomatically.
8Audisideassist:malfunction!Pleasecontact
Service
8Audisideassistandexitwarning:malfunc-
tion!PleasecontactService
Thesystemcannotguaranteethatitwilldetect
vehiclescorrectlyandithasswitchedoff.The
sensorshavebeenmovedorarefaulty.Havethe
systemcheckedbyanauthorizedAudidealeror
authorizedAudiServiceFacilitysoon.
Audisideassist:currentlyunavailable.Sen-
sorvisionrestrictedduetosurroundings.See
owner'smanual
Audisideassistandexitwarning:currently
unavailable.Sensorvisionrestrictedduetosur-
roundings
Theradarsensorvisionisimpaired.Theareain
frontofthesensorsmustnot becoveredbybike
racks,stickers,leaves,snoworanyotherobjects.
Cleantheareacoveringthesensors,ifnecessary
=>page122,fig.122.
Audisideassist:currentlyunavailable.See
owner'smanual
126
Audisideassistandexitwarning:currently
unavailable.Seeowner'smanual
Sideassistcannotbe switchedonatthistimebe-
causethereisamalfunction(forexample,the
batterychargelevelmaybetoolow).
Rearparkingaid:obstacledetectionrestrict-
ed
Therearcross-trafficassistisnotavailable.Ei-
thertheESCisswitchedoff,ortheradarsensors
maybecoveredbyabikerack,stickers,leaves,
snoworotherobjects.SwitchtheESCon,or
cleantheareainfrontofthesensorsifnecessary
=>page122,fig.122.Ifthismessagecontinues
tobedisplayed,driveimmediatelytoanauthor-
izedAudidealerorauthorizedAudiServiceFacili-
tytohave themalfunctionrepaired.
Audidriveselect
Introduction
Appliesto:vehicleswithAudidriveselect
Driveselectmakesitpossibletoexperiencedif-
ferenttypesofvehiclecharacteristicsinonevehi-
cle.ThedrivercanselectOffroad*,Comfort,Au-
toandDynamicmodesintheInfotainmentsys-
temtoswitchbetweenasportyandacomforta-
bledrivingmode,forexample.IntheIndividual
mode,thesettingscan beadjustedtoyourper-
sonalpreferences.Thismakesitpossibletocom-
bine settingssuchasasportyenginesettingwith
lightsteering.
Appliesto:vehicleswithAudidriveselect
Thefollowingsystems,amongotherthings,are
influencedbydriveselect:
Engineandautomatictransmission*
Dependingonthemode,theengineandauto-
matictransmission*respondmorequicklyorina
morebalancedmannertoacceleratorpedal
movements.InthesportyDynamicmode,the
transmissionshiftsathigherspeedranges.
Page 140 of 392

IntelligentTechnology
IntelligentTechnology
ElectronicStabilization
Control(ESC)
ElectronicStabilizationControl(ESC)supports
driversafety.Itreducestheriskofslippingand
improvesdrivingstability.ESCdetectscriticalsit-
uations,suchasifthevehicleisoversteeringor
understeering,orifthewheelsare spinning.The
brakesareappliedortheenginetorqueisre-
ducedinordertostabilizethevehicle.Whenthe
ESCengages,theBindicatorlightflashesinthe
instrumentcluster.
ThefollowingsystemsareintegratedintheESC:
Anti-lockbrakingsystem(ABS)
ABSpreventsthewheelsfromlockingwhenbrak-
ing.Thevehiclecanstillbesteeredevenduring
hardbraking.Applysteadypressuretothebrake
pedal.Donotpumpthepedal.Apulsinginthe
brakepedalindicatesthatthesystemisacting to
stabilizethevehicle.
Brakeassistsystem
Thebrakeassistsystemcandecreasebrakingdis-
tance.Itincreasesbrakingpowerwhenthe driver
pressesthebrakepedalquicklyinemergencysit-
uations.Youmustpressandholdthebrakepedal
untilthedangeroussituationisover.Invehicles
withadaptivecruisecontrol*,thebrakeassist
systemismoresensitiveifthedistancedetected
tothevehicledrivingaheadistoosmall.
Anti-SlipRegulation(ASR)
ASRreducesenginepowerwhenthedrivewheels
beginspinningandadaptstheforcetotheroad
conditions.Thismakesiteasiertostart,acceler-
ateanddriveuphills.
ElectronicDifferentialLock(EDL)
TheEDLappliesthe brakestowheelsthatare
slippingandtransfersthedrivepowertotheoth-
erwheels.Thisfunctionisnotavailableathigher
speeds.
138
Inextremecases,EDLautomaticallyswitchesoff
tokeepthebrakeonthebrakedwheelfromover-
heating.Thevehicleisstillfunctioningcorrectly.
EDLwillswitchonagainautomaticallywhencon-
ditionshavereturnedtonormal.
Powersteering
The ESCcanalsosupportvehiclestability
throughsteering.
Selectivewheeltorquecontrol
Selectivewheeltorquecontrolisusedwhendriv-
ingoncurves.Brakingistargetedtowardthe
wheelsontheinsideofthecurveasneeded.This
allowsmoreprecisedrivingincurves.
Automaticpost-collisionbrakingsystem
The“automaticpost-collisionbrakingsystem”
canhelptoreducetheriskofslidingandofaddi-
tionalcollisionsafteranaccident.Iftheairbag
controlmoduledetectsacollision,thevehicleis
braked bytheESC.
Thevehicledoesnotbrakeautomaticallyifoneof
thefollowingoccurs:
—Thedriverpressestheacceleratorpedal
—TheESC,thebrakesystem,orthevehicleelec-
tricalsystemisnotfunctioning
ZAWARNING
— The ESCanditsintegratedsystemscannot
overcomethelimitsimposedbynatural
physicallaws.Thisisespeciallyimportanton
slipperyorwetroads.Ifthesystemsbegin
actingtostabilizeyourvehicle,youshould
immediatelyalteryourspeedtomatchthe
roadandtrafficconditions.Donotletthein-
creasedsafetyprovidedtemptyouintotak-
ingrisks.Thiscouldincreaseyourriskofa
collision.
—Pleasenotetheriskofacollisionincreases
whendrivingfast,especiallythroughcurves
andonslipperyorwetroads,andwhendriv-
ingtooclosetoobjectsahead.The ESC and
itsintegratedsystemscannotalwayspre-
ventcollisions-thereisstillariskofacci-
dents!
Page 142 of 392

IntelligentTechnology
Appliesto:allroad
Youshouldonlyswitchsportmode/offroad
modeonorswitchESC/ASRoffifyourdriving
abilitiesandroadconditionspermit.
—Thestabilizationfunctionislimitedwhen
sportmode/offroadmodeisswitchedon.
Thedrivingwheelscouldspinandthevehi-
clecouldswerve,especiallyonslickorslip-
peryroadsurfaces.
—Thereisnovehiclestabilizationwhen
ESC/ASRareswitchedoff.
Hilldescentassist
Appliesto:allroad
Hilldescentassistmakesitpossibletodrive
downahillataconstantspeed.
a
Q
gz
=& a
Fig.146Centerconsole:hilldescentassistbutton
>Toswitchhilldescentassiston,presstheL@
button.TheLEDinthebuttonwillturnon.
>»Pressthebuttonagaintoswitchitoff.The LED
inthe buttonturnsoff.
140
OffroadmodeonESC/ASRoffOffroadmodeoffor
ESC/ASRon
BehaviorThe ESC andASRstabiliza-|Thestabilizationfunctionis|Thefullstabilizationfunc-
tionfunctionsarelimitednotavailable>A\.ESCand__|tionoftheESCandASRis
DSA.ASRareswitchedoff.available again.
Operating|Pressthe|#°*]buttonbriefly.|Pressandholdthe||but-|Pressthe|#°"|buttonagain.
tonlongerthanthreesec-
onds.
IndicatorEgiturnson.ElandSaturnon.Eaiturnsoffor[gjand
lightsEaturnoff.
Messages|Stabilizationcontrol(ESC):|Stabilizationcontrol(ESC):|Stabilizationcontrol(ESC):
offroad.Warning!Reduced|off.Warning!Restrictedon
stability stability
AWARNINGHilldescentassistbrakesallfourwheelsauto-
maticallyinordertolimitspeedwhendrivingei-
therforwardorreverseonhillswithagradefrom
approximately6to60%.Thewheelswillnotlock
upbecausetheABSremainsactivated.Invehi-
cleswithamanualtransmission,thehillholdas-
sistadjuststothespecifiedspeedso thattheen-
gineisnot brakedbelowitsidlespeed.
Whenhilldescentassistison,thespeedyourve-
hiclewastravelingwhenitentered thehillis
maintained.Itisonlypossible toswitchonthe
assistwhendrivingslowerthan37mph(60
km/h).Theassistbeginsshortlyafteryoustart
drivingandcontinuesuptoapproximately
19mph(30km/h).Invehicleswithamanual
transmission,regulationbelowapproximately6
mph(9km/h)isonlypossibleiftheclutchpedal
ispressedorifthegearshiftisintheneutralposi-
tion.Iftheclutchpedalisreleasedwhenagearis
engagedbelowapproximately6mph(9km/h),
the regulatedspeedwillincrease.Thedrivercan
increaseordecreasethevehiclespeedwithin
theselimitsbypressingtheacceleratororbrake
pedal.
However,theremustbeenoughtraction.Hillde-
scentassistcannotfunctionasexpected,iffor
examplethehillisicyorifthesurfaceisloose
SA.
Activeregulationofaspeeduptoapproximately
19mph(30km/h)issignaledintheinstrument
clusterby anindicatorlightZBTheindicator
lightturnsoninthereadymode.
Page 143 of 392

8W0012721BG
IntelligentTechnology
Thesystemdoesnotworkatspeedsbetweenap-
proximately19 and37mph(30and60km/h).
Thesystemistheninready-mode.Thisisindicat-
edbytheLEDinthe buttonturningon.Thesys-
temautomaticallyswitchedoffwhenyoudrive
fasterthan37mph(60km/h).TheLEDwillalso
turnoffinthisscenario.
Hilldescentassistisautomaticallyactivatedun-
derthefollowingconditions:
—theLEDinthebuttonturnson
—thevehiclespeedislowerthan19mph(30
km/h)
—thehillangleisatleastapproximately6%
ZAWARNING
—Bereadytoapply thebrakesatalltimes
whenusingthehillholdassist.
—Alwaysadjustthespeedto thevisibility,
weather,road,andtrafficconditions.The
systemcannotreplacethedriver'satten-
tion.
— Thesystemcannotmaintainaconstantvehi-
clespeedinallsituations,forexamplewhen
onsmoothorslipperyground.Thiscanin-
creasetheriskofanaccident.
Brakes
Newbrakepads
Newbrakepadsdonotachievetheirfullbraking
effectduringthefirst250mi(400km).They
mustbe“brokenin”first.However,youcancom-
pensatefortheslightlyreducedbrakingforceby
pressingfirmlyonthebrakepedal.Avoidheavy
brakingduringthebreak-inperiod.
Brakepadweardependslargelyonthewaythe
vehicleisdrivenandonoperatingconditions.
Brakepadwearincreaseswhendrivingfrequently
inthecityorshortdistancesorwhenusingavery
sportydrivingstyle.
Operatingnoise
Noisesmayoccurwhenbrakingdependingonthe
speed,
brakingforce,andoutsideconditionssuch
astemperatureandhumidity.
Wetconditionsorroadsalt
Incertainsituations,forexampleafterdriving
throughwater,inheavyrain,orafterwashing
yourcar,thebrakingeffectmaybereduceddue
tomoistureoriceonthebrakerotorsandbrake
pads.Thebrakesmustbe“dried”firstwithafew
carefulbrakeapplications.
Whendrivingathigherspeedswhilethewind-
shieldwipersareswitchedon,thebrakepadsare
brieflypressedagainstthebrakerotors.Thisac-
tion,whichisnotfeltbythedriver,happensat
regularintervalsandensuresabetterreaction
timeforthe brakesinwetweather.
Thebrakingeffectcanalsobereducedifyouare
drivingonsaltedroadsandyoudonot applythe
brakesforlongperiodsoftime.Thelayerofsalt
onthebrakerotorsandpadsmustbewornoff
firstwhenthebrakesareapplied.
Corrosion
Leavingthevehicleparkedforlongperiodsof
time,lowmileageonthevehicle,andavoiding
heavybrakingcancontributetocorrosiononthe
brakerotorsandtodirtybrakepads.
Ifyouusuallyavoidheavybrakingorifthereis
corrosionpresent,occasionalheavybrakingat
highspeedsisrecommendedtocleanthebrake
rotorsandpads>A\.
Brakesystemmalfunction
Ifyounoticethatthebrakepedalsuddenlygoes
downfarthertowardthefloorwhenyoupressit,
thenabrakecircuitinthedual-circuitbrakesys-
temmayhavemalfunctioned.Drivetoanauthor-
izedAudidealerorauthorizedAudiServiceFacili-
tyimmediatelytohavetheproblemcorrected.
Onthewaythere,drivewithreducedspeedand
keepinmindthatyouwillneedalongerdistance
tostopandyouwillneedtopressthebrake pedal
harder.
Lowbrakefluidlevel
Whenthebrakefluidlevelislow,malfunctionsin
thebrakesystemmayoccur.Thebrakefluidlevel
iselectronicallymonitored.
141