2019 AUDI S4 cruise control

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Assistsystems

Assistsystems
Speedwarningsystem
Appliesto:vehicleswithspeedwarningsystem
Thespeedwarningsystemhelpsyoutostaybe-
low aspecifiedmaximumspeedthatcanbeset,
changedordeletedintheInfotainmentsystem.
Thespeedwarningsystemwarnsyouifyouare
exceeding themaximumspeedthatyouhaveset.
Awarningtonewillsoundassoonasyourspeed
exceedsthestoredvalueslightly.Theeein-
dicatorlightandamessageappearintheinstru-
mentclusterdisplayatthesametime.Theol
indicatorlightandthemessageturnoffifthe
speedfallsbackbelowthestoredmaximum
speed.
Settingathresholdisrecommendedifyouwould
liketoberemindedwhenyoureachacertain
maximumspeed.Situationswhereyoumaywant
todosoincludedrivinginacountrywithagener-
alspeedlimitorifthereisaspecifiedmaximum
speedforwintertires.
Settingthewarningthreshold

SelectintheInfotainmentsystem:[MENU]but-
ton>Vehicle>leftcontrolbutton>Driverassis-
tance>Speedwarning>Manual.
G)Tips
Regardlessofthespeedwarningsystem,you
shouldalwaysmonitoryourspeedusingthe
speedometerandmakesureyouarefollowing
thelegalspeedlimit.

Cruisecontrolsystem
Appliesto:vehicleswithcruisecontrolsystem
Thecruisecontrolsystemassiststhedriverin
maintainingaconstantspeedaboveapproxi-
mately 15mph(20km/h).Thesystemmaintains
thedesiredspeedbybrakingandaccelerating.

ZAWARNING
—Alwayspayattentiontothetrafficaround
yourvehiclewhenthecruisecontrolsystem
isinoperation.Asthedriver,youarealways
responsibleforcontrollingyourvehicle
speedandthedistancebetweenyourvehicle
andothervehicles.
—Forsafetyreasons,cruisecontrolshould not
beusedinthecity,instop-and-gotraffic,on
windingroads,andwhenroadconditionsare
poor(suchasice,fog,gravel,heavyrain,
andconditionsthatcouldlead tohydroplan-
ing),becausethisincreasestheriskofanac-
cident.
—Switchthecruisecontrolofftemporarily
whendrivinginturninglanes,highwayexits,
orinconstructionzones.
—Toreducetheriskofanaccident,youshould
onlyresumethestoredspeedifitissuitable
forthecurrenttrafficconditions.
()Note
Beforedrivingdownhillalongdistanceona
steephill,decreaseyourspeedandselecta
lowergear.Thismakesuseoftheenginebrak-
ingeffectandreducestheloadplacedonthe
brakes.
@)Tips
Thebrakelightsturnonwhenthebrakesare
appliedautomatically.
Switchingthesystemon
Appliesto:vehicleswithcruisecontrolsystem


BFV-0220



Fig.95Lever:switchingonthecruisecontrolsystem
Requirement:switchtheignitionon.
95

Assistsystems

>Toswitchthesystemon,pullthelevertoward
youtoposition().
TheGgor88]indicatorlightandthecorre-
spondingmessagewillappearintheinstrument
cluster.
ZXWARNING
Ifthebrakesaremalfunctioning(forexample,
overheating)whilethecruisecontrolsystem
isswitchedon,itmayshutoffautomatically.
Preselectingoractivatingacruisecontrol
Cytst-t)
Appliesto:vehicleswithcruisecontrolsystem


Whenthevehicleisstationary,youcanpreselect
thecruisecontrolspeedoractivatethespeed
whiledriving.
Requirement:thesystemmustbe switchedon.
>Topreselectacruisecontrolspeedwhentheve-
hicleisstationary,tapthelevertoward@)/G)
=>page95,fig.95.
>Toactivatethecruisecontrolspeed,pullthe
levertowardposition@whiledriving,or
>
Tosetthecurrentdrivingspeedasthecruise
controlspeed,pressthebutton(@)onthelever.
Theactivecruisecontrolspeedisindicatedwith
theCRUISE]orklindicatorlightintheinstrument
cluster.
Anadditionalindicatorappearsinthehead-up
display”.
Changingthecruisecontrolspeed
Appliesto:vehicleswithcruisecontrolsystem
>Toincrease ordecreasethecruisecontrolspeed
insmallincrements,tap theleveruptothe
firstleveltoward@/@)>page95,fig.95.
>Toincrease ordecreasethecruisecontrolspeed
inlargerincrements,taptheleveruptothe
secondleveltoward@)/G).
>Toincrease ordecreasethecruisecontrolspeed
continuously,tapandholdtheleveratthefirst
orsecondleveltoward(#)/C).
96
Overridingordeactivatingthecruise
controlspeed
Appliesto:vehicleswithcruisecontrolsystem
Youcanoverride ordeactivatethecruisecontrol
system.Whenyoudeactivatethesystem,your
cruisecontrolspeedwillbestoredand youcan
resumethatspeed.
Requirement:thesystemmustbe switchedon
andactivated.
Overriding
>Totemporarilyoverridethecruisecontrol
speed,presstheacceleratorpedal.
>Onceyoureleasetheacceleratorpedal,thesys-
temwilladjustbacktothestoredcruisecontrol
speed.
Ifyouoverridethecruisecontrolsystemfora
longperiodoftime,thecruisecontrolsystem
willbedeactivated.Thesystemindicatorlight
willturnoffandthecruisecontrolspeedwillbe
stored.
Deactivating
>Todeactivatethecruisecontrolspeed,press
thelevertoward(2)(notlockedintoplace)
=>page95,fig.95.
>Pressthebrakepedal.

Z\WARNING
Restingyourfootontheacceleratorpedal
couldoverridethecruisecontrol.Thiswillpre-
ventbrakinginterventionsby the system.
Seema
Appliesto:vehicleswithcruisecontrolsystem

Whenyouswitchthesystemoffcompletely,the
cruisecontrolspeedwillbedeleted.
Requirement:thesystemmustbe switchedon.
>Toswitchthesystemoff,pressthelevertoward
@(lockedintoplace)>page95,fig.95,or
>Switchtheignitionoff.

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Assistsystems

Appliesto:vehicleswithcruisecontrolsystem
ICRUISE|/3)Speedcontrolsystem:currentlyun-
available.Seeowner'smanual
Iftheindicatorlightturnsonandthismessage
appears,thecruisecontrolsystemhasbeendeac-
tivated.Thereisatemporarymalfunction,forex-
amplethebrakesareoverheating.Switchthe
cruisecontrolsystemonagainlater.
Camera-basedtraffic
signrecognition
Appliesto:vehicleswith camera-basedtrafficsignrecognition

Fig.96Instrumentcluster:trafficsignrecognition

B4M-0090


Fig.97Windshield:camerawindowfortrafficsignrecog-
nition
Trafficsignrecognitionassistsyouwhendriving
bydisplayingdetectedspeedlimitsorsignspro-
hibitingpassingintheinstrumentclusterdisplay
>fig.96.Withinthelimitsofthesystem,thele-
galspeedlimitsinschoolzonesaredetectedand
displayed.
Generalinformation
Trafficsignrecognitioncandetectstandard
speedlimitsignsthatarewithinthecamera'svis-
ualfield.Withassistancefromnavigationdata,
detectedspeedlimitsareevaluatedandshownin
thedisplay.Thetrafficsignforthecurrentde-
tectedspeedlimitwillblinkinthedisplayifyou
exceedthewarningthresholdsetintheInfotain-
mentsystem>page98.
Thetrafficsignrecognitionissubjecttocertain
systemlimitationsandmaybeunavailableoron-
lypartiallyavailableinthefollowingsituations:
—Whenvisibilityispoor,suchasinsnow,rain,
fogorheavyspray
—Whenthereisglare,forexamplefromoncom-
ingtrafficorthesun
—Athighspeeds
—Ifthecamera'svisualfield>fig.97iscovered,
forexamplebydirtorstickers.Forinformation
oncleaning,see>page342.
—Ifthetrafficsigns arecompletelyorpartially
covered,forexamplebytrees,snow,dirtor
othervehicles
—ifspeedtrafficsignsdonotconformtothe
standards
—Iftrafficsigns aredamagedorbent
—Iftrafficsigns aredisplayedonsignholders
withelectronicsigns
—ifthetrafficsignsortheconfigurationofthe
roadhavechanged(navigationdataisnolonger
up-to-date)

ZAWARNING
Payattentiontotrafficandtheareaaround
yourvehiclewhentrafficsignrecognitionis
turnedon.Thetrafficsignsinstalledonthe
roadalwaystakeprecedenceoverthedisplay.
Thedriverisalwaysresponsibleforassessing
thetrafficsituation.
— Undersomecircumstances,trafficsignrec-
ognitionmaynotdetecttrafficsignscorrect-
lyordetectthematall.Asaresult,thesys-
temmaynotdisplaythecorrectspeedlimit
oranyspeedlimit.
—Trafficsignrecognitiondoesnotadaptyour
vehicle'sspeedtomatchthespeedlimit!
—Thedisplayintheinstrumentclusteris
basedontheunitsofmeasurementusedfor
speedinthe countrywherethevehicleisbe-
ingoperated.Asaresult,thedisplay50in

97

Assistsystems

@Tips
Thelapstatisticslistthelaptimesforthelast
30laps.Thefastestandslowestlaptimeout
ofupto99measuredlapsarealsodisplayed.
Predictiveefficiency
assist
Thepredictiveefficiencyassisthelpsthedriverto
drivewithanticipationandthereforehelpsto
savefuel.Thesystemaccessespredictivetripda-
ta(includingspeedlimits,hills,andtheangleof
curves)fromthenavigationsystem*.Informa-
tionfromthecamera-basedtrafficsignrecogni-
tion*isalsoappliedtorecognizetrafficsigns
=>page97.
Themessagesdisplayeddependonthenaviga-
tiondata*beingup-to-dateandthecorrectiden-
tificationbythetrafficsignrecognition”.
Whenadaptivecruisecontrol*isswitchedoff,the
predictiveefficiencyassistonlyprovidesnotifica-
tionswithoutcontrolledinterventions.See
=>page100,Predictivemessages(efficiencyas-
sist).
Whenadaptivecruisecontrol”isswitchedon,the
systemrespondstoupcomingsituationsauto-
matically.See>page101,Predictivecontrol(ef-
ficiencyassist).
Predictivemessages(efficiencyassist)
Appliesto:vehicleswithpredictiveefficiencyassist
Indicatorintheinstrumentclusterdisplay
Predictivemessagesappearintheinstrument
clusterdisplaytoshowthedrivertheappropriate
timetocoastwhenasituationaheadrequiresyou
todriveatalowerspeed.
Themessagesareonlyshownifthecruisecontrol
system*oradaptivecruisecontrol*isswitched
off.
Anadditionalindicatorappearsinthehead-up
display”.
100

SymbolMeaning

Removeyourfootfromtheacceler-
atorpedaltoslowdown,because
thereisasituationaheadthatre-~»


quiresalowerspeed.

IfyouseeDriverassistanceintheinstrument
clusterdisplay,thefollowingsymbolswillindi-
catewhichsituationthesystemiscurrentlyreact-
ingto.




SymbolMeaning
MPHSpeedlimit
km/hSpeedlimit
JikIntersection
TE
~OTrafficcircle
aca
Iftherearemultiplesituations,thenasequence
ofthesesituationswillappearinthedisplay.

ZA\WARNING
Payattentiontotrafficandtheareaaround
yourvehiclewhentheefficiencyassistis
switchedon.Thedriverisalwaysresponsible

forassessingthetrafficsituation.
(i)Tips
— Thewordingofthemessagemayvaryde-
pendingonthedrivingmodesetindrivese-
lect*>page126andthecurrentselector
leverposition(automatictransmission*).No
messagesaredisplayedwheninthe"S"se-
lector
leverpositionorinDynamicmode.

—Whenarouteisplannedusingthenaviga-
tionsystem*,thensystemdisplaysmessag-
esbasedonanassumedroute.Without
routeguidance,thesystemdisplaysmes-
sagesbasedonanassumedroute.
—Therewillnot beamessageforeverysitua-
tionahead,forexampleifthereisnot
enoughdistanceremainingtoreacttothe
situation.
—Nomessagesaredisplayedwhenatspeeds
under20mph(30km/h).

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Assistsystems

Predictivecontrol(efficiencyassist)
Appliesto:vehicleswithAudiadaptivecruisecontrolandpre-
dictiveefficiencyassist


Fig.99Instrumentcluster:predictivecontrol
Description
Thepredictivecontrol)usesthemapinforma-
tionfromthenavigationsysteminordertoreact
proactivelywhendriving.Informationfromthe
camera-basedtrafficsignrecognition*isalsoap-
pliedtorecognizetrafficsigns>page97.When
cominguptoareaswithspeedlimitsorchanges
inthe courseoftheroad(suchascurves,inter-
sectionsortrafficcircles),thesystembrakesau-
tomaticallyandthenacceleratesbackuptothe
setspeed.
Overridingcontrol
Thedrivercanoverridethepredictivecontrolat
anytimebypressingtheacceleratororbrake
pedal.Ifthesystemchangesthevehiclespeedto
adapttospeedlimits,youcanchangethespeed
usingthelever>page106,fig. 106.
Alwaysswitchoffthepredictivecontrolin
thefollowingsituations:
—Whenincreasedattentionisneededfromthe
driver
—Inpoorweatherconditionssuchassnowor
heavyrain
—Whendrivingonroadsinpoorcondition
Indicatorintheinstrumentclusterdisplay
Whenswitchingontheadaptivecruisecontrol
forthefirsttime,amessagewillappearinthe
statuslinetoindicateifpredictivecontrolis
available.

D_Thisisnotavailableinsomecountries.
TheBEsymbolappearswhenthesystem
isregulatingthespeedtomatchaspeedlimit.If
thisisthecase,thesystemisregulatingaspeed
of50mph(80 km/h).Thespeedisthentaken
overbytheadaptivecruisecontrol.Thespeedin
thespeedometerLEDringadjuststothespeedto
bemaintained>page105,fig.105.ThefaaEN
=>fig.99symbolappearswhenthereisanadap-
tationtotherouteahead.
IfyouareintheDriverassistancedisplayinthe
instrumentcluster,thenthefollowingsymbols
willindicatewhichoccurrencethesystemiscur-
rentlyrespondingto:


SymbolMeaning
MPHSpeedlimit
km/hSpeedlimit

iCurve

Intersection
JilTE
©Trafficcircle
NW

Z\WARNING
—Readthewarningson>AinGeneralinfor-
mationonpage103andon>AinDescrip-
tiononpage97.
—Payattentiontotrafficandtheareaaround
yourvehiclewhenpredictivecontrolis
switchedon.Thedriverisalwaysresponsible
forassessingthetrafficsituation.
—Thesystemdoesnotconsider"rightofway"
rulesanddoesnotrespondtotrafficlights,
solackofdriverattentioninthesesituations
canincreasetheriskofanaccident.
— The systemonlyconsiderstrafficsignsthat
giveaspeedlimit.
— The
permittedspeedcanbeexceededifthe
adaptationtoaspeedlimitisincorrect.The
driverisresponsibleforadheringtotheper-
mittedspeed.
—Thespeedwhendrivingthroughcurvesmay
bedifferentfromwhatyouasadriverwould

101

Assistsystems


do.Brakethevehicleyourselfwhenneeded
toreducetheriskofanaccident.


Gi)Tips
—Ifaspeedlimitisdetected,thestored
speedisalsoadjustedinthespeedometer
LEDlinewhentheadaptivecruisecontrolis
notactive.
— Theadaptationby thesystemdependson
thedrivingmodesetindriveselect*.
—Switchingoffpredictivecontrol,forexam-
plewhendrivinginLowtrafficzones,does
notcausetheadaptivecruisecontrolto
switchoff.
—Afterswitchingontheignition,thesystem
initiallyadjuststoaspeedof80mph
(130km/h)whendrivingontohighways
withoutaspeedlimit.Thenthesystemad-
juststothelastspeedstoredbythedriver.
—Thereisnoadaptationtospeedlimitswhen
drivingthroughhighwayinterchangesand
whendrivingonorofftheexpressway.
—Thereisnopredictivecontrolatspeedlimits
under20mph(30 km/h).
—If aspeedlimitisonlydetectedbythecam-
eraandtheactualspeedissignificantly
higher,thenthespeedlimitwillblinkinthe
displayuntilyouhave reachedtherequired
speed>page98.
—Incorrectvaluesfromthecamera-based
trafficsignrecognition*oroutdatednaviga-
tionsystemmapdatacanleadtoincorrect
orimplausiblecontrol.
—Whenrouteguidanceisswitchedon,the
systemadaptstotherouteprovidedbythe
navigationsystem.Drivingwithoutroute
guidanceorleavingaroutecanresultinim-
plausiblecontrol.
—Thesystemswitchesoffwhenoutsideofa
roadsystemthatisrecordedinthenaviga-
tionsystemmapdata.
102

SettingsintheInfotainmentsystem
Appliesto:vehicleswithpredictiveefficiencyassist
Predictivemessages*

>IntheInfotainmentsystem,select:[MENU
button>Vehicle>leftcontrolbutton>Driver
assistance>Efficiencyassist.

Predictivemessagesareshownwhenthisfunc-
tionisswitchedon.
Predictivecontrol*

>SelectintheInfotainmentsystem:[MENU]but-
ton>Vehicle>leftcontrolbutton>Driveras-
sistance>Audiadaptivecruisecontrol>Pre-
dictivecontrol.

Setspeedlimit-whenthisfunctionisswitched
on,thesystemadjuststothespeedlimits.This
canalsobedonewithattolerance,ifdesired.In
this
scenario,youmayfallbeloworexceedthe
setspeedinfavorofincreasedefficiency.
Adaptationtorouteahead-whenthisfunction
isswitchedon,thesystemadaptstotheroute
ahead, suchasreducingthespeedwhendriving
aroundcurves.
@Tips
Nopredictivemessagesareshowninvehicles
withoutanavigationsystem.
Audiadaptivecruise
control
Appliesto:vehicleswith Audiadaptivecruisecontrol

B4m-0091

Fig.100Detectionrange

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Assistsystems

Theadaptivecruisecontrolsystemisacombina-
tionofspeedanddistanceregulation.Itassists
thedriverbybothregulatingthespeedand
maintainingadistancetothevehicledriving
ahead,withinthelimitsofthesystem.Ifthesys-
temdetectsavehicledrivingahead,theadaptive
cruisecontrolcanbrakeandaccelerateyourvehi-
cle.This increasesdrivingcomfortduringlong
tripsonhighwaysandinstop-and-gotraffic(au-
tomatictransmission*).
Whatcanadaptivecruisecontroldo?
Theadaptivecruisecontrolsystemusesvideo,ra-
dar,ultrasoundandnavigationdata.Vehicles
drivingaheadcanberecognizedupto650ft
(200m)away.
Predictivefunctionsofferthedriveradditional
comfortandcontributetothereductioninfuel
consumptionandCO2emissions>page101.
Onopenroadswithnotraffic,itfunctionslikea
cruisecontrolsystem.Thestoredspeedismain-
tained.Whenapproachingavehicledriving
ahead,theadaptivecruisecontrolsystemauto-
maticallybrakestomatchthatvehicle'sspeed
andthenmaintainsthesetdistance.Assoonas
thesystemdoesnotdetectavehicledriving
ahead,adaptivecruisecontrolacceleratesupto
thestoredspeed.
Appliesto:vehicleswithautomatictransmission
Instop-and-gotraffic,adaptivecruisecontrolcan
brakeuntilthevehicleisstationaryandthencan
alsostartdrivingagainautomaticallyundercer-
tainconditions>page107.
Intrafficjamsorstop-and-gotraffic,trafficjam
assistcanassistthedriver>page109.
Whichfunctionscanbecontrolled?
Whenyouswitchadaptivecruisecontrolon,you
cansetthecurrentspeedasthe“controlspeed”
=page105,Switchingonandoff.
Whendriving,youcanstopcruisecontrol
=>page108orchangethespeed>page106at
anytime.
Youcanalsosetthedistancetothevehicledriv-
ingaheadandsetthedrivingmodeoftheadap-
tivecruisecontrol>page106.
Generalinformation
Appliesto:vehicleswith Audiadaptivecruisecontrol

B8W-0098|

Fig.101Frontofthevehicle:sensorsandvideocamera
Theareaswiththeradarandultrasonicsensors
andthevideocamera>fig.101mustnotbecov-
ered bystickers,depositsoranyotherobjects,
becausethiscaninterferewiththeadaptive
cruisecontrolfunction.Forinformationonclean-
ing,see>page342.Thesameappliesforany
modificationsmadeinthefrontarea.
Insomedrivingsituations,theadaptivecruise
controlfunctionisrestricted:
—Vehiclescanonlybedetectedwhentheyare
withinthe sensordetectionzones>page102,
fig.100.
—Thesystemhasalimitedabilitytodetectvehi-
clesthatareashortdistanceahead,offtothe
sideofyourvehicleormovingintoyourlane.
—Objectsthataredifficulttodetectsuchasmo-
torcycles,vehicleswithhighgroundclearance
oranoverhangingloadaredetectedlateornot
detectedatall.
—Whendrivingthroughcurves>page104.
—Whenthevehicleisstationary>page104.

Z\WARNING
Alwayspayattentiontothetrafficaround you
whenadaptivecruisecontrolisswitchedon.
Asthedriver,youarestillresponsibleforyour
ownspeedandthe distancetoothervehicles.
Theadaptivecruisecontrolisusedtoassist
you.Thedrivermustalwaystakeaction to>

103

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

B8V-0630


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.>