2019 AUDI A4 lane assist

Assistsystems


avoidacollision.Thedriverisalwaysresponsi-
bleforbrakingatthecorrecttime.
—Forsafetyreasons,donotuseadaptive
cruisecontrol whentheroadsurfaceisin
poorconditionand/orinbadweathercondi-
tions(suchasice,fog,gravel,heavyrainand
hydroplaning).Usingthesystemunder
theseconditionsincreasestheriskofanac-
cident.
—Switchadaptivecruisecontrolofftemporari-
lywhendrivinginturninglanes,onexpress-
wayexits(exceptifpredictivecontrolis
switchedon)orinconstructionzones.This
preventsthevehiclefromaccelerating to
thestoredspeedwheninthesesituations.
—Theadaptivecruisecontrolsystemwillnot
brakebyitselfifyouputyourfootontheac-
celeratorpedal.Doingsocanoverridethe
speedanddistanceregulation.
—Whenapproachingstationaryobstacles
suchasstoppedtraffic,adaptivecruisecon-
trol willrespondwithlimitedfunction.
—Adaptivecruisecontroldoesnotrespondto
people,animals,orcrossingoroncoming
objects.
—Thefunction oftheradarsensorscanbeaf-
fectedbyreflectiveobjectssuchasguard
rails,theentrancetoatunnel,heavyrainor
ice

1)Note
Thesensorscanbedisplacedbyimpactsor
damagetothebumper,wheelhousingand
underbody.Thiscanimpair theadaptive
cruisecontrol.HaveanauthorizedAudidealer
orauthorizedAudiServiceFacilitychecktheir
function.
G)Tips
Foranexplanationonconformitywiththe
FCCregulationsintheUnitedStatesandthe
IndustryCanadaregulations,see>page370.
104
Incurves
Appliesto:vehicleswithAudiadaptivecruisecontrol



Fig.102Example:drivinginto acurve
Whendrivingintoacurve>fig.102andoutofa
curve,theadaptivecruisecontrolmayreacttoa
vehicleintheneighboringlaneandapplythe
brakes.Youcanpreventthatbypressingtheac-
celeratorpedalbriefly.
Stationaryvehicles
Appliesto:vehicleswithAudiadaptivecruisecontrol

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Fig.103Example:vehiclechanginglanesandstationary
vehicle
Withinthelimitsofthesystem,adaptivecruise
controlcanreacttostationaryvehicles
=>fig.103,aslongasyouaredrivingslowerthan
30mph(50km/h) andthesystemclassifiesthe
possiblepassingmaneuveraslow.Forexample,
ifavehiclethatwasalreadydetected(@turnsor
changeslanes,theadaptivecruisecontrolreacts
tothestationaryvehicleaheadofit@).
Vehicleswithmanualtransmission
Appliesto:vehicleswithAudiadaptivecruisecontroland
manualtransmission
Theadaptivecruisecontrolisavailablefrom1st
gearthrough6thgearinthenormalspeedrange.>

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Assistsystems

stored,Distance3isautomaticallyseteverytime
theignitionisswitchedon.
Drivingprogram
Appliesto:vehicleswithoutAudidriveselect
Dependingontheselecteddrivingprogramand
distance,drivingbehaviorwhenacceleratingwill
varyfromdynamictocomfortable.
Selectingthedrivingmode
Appliesto:vehicleswith Audidriveselect
DependingontheselectedAudidriveselect
modeandthedistancethatisset,thedrivingbe-
haviorwillvaryfromdynamictocomfortable
whenaccelerating>page127.
@)Tips
Yoursettings areautomaticallystoredandas-
signedtothevehiclekeybeingused.
riverinterventionrequest
Appliesto:vehicleswithAudiadaptivecruisecontrol


Fig.110Instrumentcluster:requestfordriverinterven-
tion
Therequestfor driverinterventioninstructsyou
totakeoveriftheadaptivecruisecontrolbraking
functionisnotabletomaintainasufficientdis-
tancetothevehicledrivingahead>fig.110.
Appliesto:vehicleswithtrafficjamassist
Trafficjamassistsupportsthedriverwhendriv-
ingintrafficjamsorinheavytraffic.

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Fig.111Turnsignallever:trafficjamassistbutton
ooa
RAH-8657


Fig.112Instrumentcluster:trafficjamassist
In aspeedrangeunder40mph(65km/h),traffic
jamassistcanhelptokeepthevehiclewithina
lanecalculatedbythesystem.Withinthelimits
ofthesystem,thesystemcontrolsthesteering
automaticallywhenadaptivecruisecontrolis
switchedon.Sincetrafficjamassistisonlyanas-
sistsystem,thedrivermustalwayskeephisor
herhandsonthesteeringwheelandbereadyto
steer.Thedrivercanoverridethecontrolatany
timebyactivelysteering.
Thesystemisdesignedfordrivingonexpress-
waysandhighways.
Switchingtrafficjamassistonandoff
>Pressthebuttontoswitchthesystemonand
off>fig.111.
>Toturnthesystemoffcompletely,selectinthe
Infotainmentsystem:[MENU]button>Vehicle
>leftcontrolbutton>Driverassistance>Traf-
ficjamassist.


109
>

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.

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,>

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.

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.

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Assistsystems

SettingsintheInfotainmentsystem
Appliesto:vehicleswithAudipresense

>SelectintheInfotainmentsystem:[MENU]but-
ton>Vehicle> leftcontrolbutton>Driver
assistance>Audipre sense.

TurnAudipresenseon/off-thepresensefunc-
tionscanbe turnedonandoff.
Ifthesystemisswitchedoff,itswitchesonagain
automaticallyoncetheignitionisswitchedon
again.
Prewarning-theearlywarningcan be switched
offorthepresensecity/frontwarningpointcan
be
set(Early/Medium/Late).
Setthewarningtimefortheearlywarningto
Earlyatfirst.Ifthiscausesundesiredearlywarn-
ingstoappear,thensetthewarningtimetoMe-
dium. TheLatewarningtimeshouldonlybeset
inspecialcircumstances.
@Tips
Yoursettings areautomaticallystoredandas-
signedtothevehiclekeybeingused.
Messages
Appliesto:vehicleswithAudipresense
Bhaudipresense:malfunction!Pleasecontact
Service
Thismessageappearswhenthepresensefunc-
tionisaffected.Forexample,thiscouldbe
causedbyafaultysensor.Drivetoanauthorized
AudidealerorauthorizedAudiServiceFacilityim-
mediatelytohavethemalfunctioncorrected.
Audipresense:currentlylimited.Sensor
viewlimitedduetosurroundings.Seeowner's
manual
Thismessageappearsiftheradarsensorand
cameraviewisobstructed,forexamplebyleaves,
snow,heavysprayordirt.Ifnecessary, cleanthe
sensorsandtheareaaroundthecamera
=>page103,fig.101or>page122,fig.122.
Audipresense:currentlylimited
ThismessageappearsiftheESCisrestrictedor
switchedoff,forexample.

Audipresense:currentlylimited.Seeown-
er'smanual
Thismessageappearswhenthereisatemporary
failureinasubsystem,suchastheESC.Ifthis
messageappearsrepeatedly,drivetoanauthor-
izedAudidealerorauthorizedAudiServiceFacili-
tytohave themalfunctioncorrected.
Audipresense:emergencybrakingsystem
off This
messageappearsifthepresensefunctions
areswitchedoffthroughtheInfotainmentsys-
temorifthesystemisnotready.
Audiactivelaneassist
Appliesto:vehicleswithAudiactivelaneassist
Active laneassist(lanedeparturewarning)de-
tectslanemarkerlineswithinthelimitsofthe
systemusingacamerainthewindshield.Ifyou
areapproachingadetectedlanemarkerlineand
itappearslikelythatyouwillleavethelane,the
systemwillwarnyouwithcorrectivesteering.
Youcanoverridethissteeringatanytime.Ifyou
passoveraline,thesteeringwheelwillvibrate
lightly.Inorderforthiswarningvibrationtooc-
cur,itmustfirstbeswitchedonintheInfotain-
mentsystem.Activelaneassistisreadyforoper-
ationwhenthelane markerlineisdetectedonat
leastonesideofthevehicle.
Thesystemisdesignedfordrivingonexpress-
waysandhighwaysandthereforeonlyactivates
atspeedsaboveapproximately40mph(65
km/h).
Appliesto:vehicleswithsideassist:ifyouacti-
vateaturnsignalwhenactivelaneassistisready
anditclassifiesalanechangeascriticalbecause
ofvehiclestravelingalongsideyouorapproach-
ingyou,therewillbenoticeablecorrectivesteer-
ingshortlybeforeyouleavethelane.Thiswillat-
tempttokeepyourvehicleinthelane.
Appliesto:vehicleswithoutsideassist:Whenthe
systemisready,itwillnotwarnyouifyouacti-
vateaturnsignalbeforecrossingthelanemarker>
117

Assistsystems

line.Inthiscase,itassumesthatyouarechang-
inglanesintentionally.
Appliesto:vehicleswithadaptivecruisecontrol:
Thereisnocorrectivesteering or warningsifthe
systemdetectsadistinctpassingmaneuver.If
theconditionsaremet,trafficjamassistswitches
onatspeedsunderapproximately40mph
(65km/h)>page109.

ZAWARNING
— Thesystemwarnsthedriverthatthevehicle
isleavingthelaneusingcorrectivesteering.
Thedriverisalwaysresponsibleforkeeping
thevehiclewithinthelane.
— Thesystemcanhelpyoukeepthevehiclein
thelane,butitdoesnotdrivebyitself.Al-
wayskeep yourhandsonthesteeringwheel.
—Correctivesteeringmaynotoccurincertain
situations,suchasduringheavybraking.
—Theremaybecaseswherethecameradoes
notrecognizealllanemarkerlines.Correc-
tivesteeringcanonly takeplaceontheside
ofthevehiclewherelanemarkerlinesare
detected.
—Otherroadstructuresorobjectscouldpossi-
blybeidentifiedunintentionallyaslane
markerlines.Asaresult,correctivesteering
maybeunexpectedormaynotoccur.
— Thecameraviewcanberestricted,forexam-
plebyvehiclesdrivingaheadorbyrain,
snow,heavysprayorlightshiningintothe
camera.Thiscanresultinactivelaneassist
notdetectingthelanemarkerlinesorde-
tectingthemincorrectly.
—Incertainsituations wherevisibilityislow,
thevehiclemayswitchfroman“early”to
“late”steeringcorrection.
—Undercertainconditionssuchasrutsinthe
road,aninclinedroadwayorcrosswinds,the
correctivesteeringalonemaynot beenough
tokeepthevehicleinthemiddleofthelane.
—Forsafetyreasons,activelaneassistmust
not beusedwhentherearepoorroadand/or
weatherconditionssuchasslipperyroads,
fog,gravel,heavyrain,snowandthepoten-



tialforhydroplaning.Usingactivelaneas-

118

sistundertheseconditionsmayincreasethe
riskofacrash.
Sicameal
Appliesto:vehicleswith Audiactivelaneassist


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Fig.115Turnsignallever:buttonforactivelaneassist

B4M-0090

Fig.116Windshield:camerawindowforactivelaneassist
>Pressthebuttontoswitchthesystemonand
off>fig.115.Theindicatorlightintheinstru-
mentclusterturnsonoroff.