2019 AUDI S4 air suspension

Instrumentcluster

Youcanstillcontrolallfunctionsthatareinde-
pendentoftherainsensorthroughthewind-
shieldwiperlever.
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
{Suspensioncontrol
Appliesto:vehicleswithsuspensioncontrol
18|Suspension:malfunction!Youmaycontinue
driving
Thereisamalfunction.SeeanauthorizedAudi
dealerorauthorizedAudiServiceFacilityforas-
sistance.
beeNatMeleelametale)
Appliesto:vehicleswithallwheeldrive/sportdifferential
3All-wheeldrive:malfunction!Youmaycon-
tinuedriving.PleasecontactService
iT-3|Sportdifferential:malfunction!Pleasecon-
tactService
DrivetoanauthorizedAudidealerorauthorized
AudiServiceFacilityimmediatelytohavethe
malfunctioncorrected.
EH]All-wheeldriveoverheating.Pleaseadapt
drivingstyle.Seeowner'smanual
3}Sportdifferential:temperaturetoohigh.
Pleaseadaptdrivingstyle
Thetransmissiontemperaturehasincreasedsig-
nificantlyduetothesportydrivingmanner.Drive
inalesssportymanneruntilthetemperaturere-
turnstothenormalrangeandtheindicatorlight
switchesof.

ZXWARNING
ContactanauthorizedAudidealerorauthor-
izedAudiServiceFacilityiftheallwheeldrive/
sportdifferentialisfaultyormalfunctioning.
Therepairmustbeperformedbytrainedper-
sonnelusingthecorrectoilinordertoensure
safety.

26
ereasercy
IftheaorByindicatorlightblinks,aturnsig-
nalisturnedon.Ifbothindicatorlightsareblink-
ing,theemergencyflashersare on.
Ifanindicatorlightblinkstwiceasfastasusual,
aturnsignalbulbhasfailed.Carefullydrivetoan
authorizedAudidealerorauthorizedAudiService
Facilityimmediatelytohavethe malfunctioncor-
rected.

Driving

Driving
Generalinformation
Anewvehiclemustbebrokeninwithinthefirst
1,000miles(1,500km)sothatallmovingparts
worksmoothlytogether,whichhelpsto increase
theservicelifeoftheengine.
Donotdrivehigherthantwo-thirds ofthemaxi-
mumpermittedengineRPMduringthefirst600
miles(1,000km)and donotusefullaccelera-
tion.TheenginecanbeincreasedRPMgradually
duringthenext300miles(500km).
Reducingthe riskofvehicledamage
Thegroundclearanceistoolowonsomemodels
todriveonroughterrain.Therefore, avoidoff-
roadtrips.
@)Note
Whendrivingonpoorroads,overcurbs,and
onsteepramps,makesurethatcomponents
thathang belowthevehicle,suchasthespoil-
erandexhaustsystem,arenotstruckbecause
theycouldbedamaged.Thisespeciallyap-
pliestovehicleswithlowgroundclearance
andvehiclesthatareheavilyloaded.
Drivingthroughwateronroads
Notethefollowingtoreducetheriskofvehicle
damagewhendrivingthroughwater,forexample
onfloodedroads:
—Thewatermustnotbeanyhigherthanthebot-
tomofthevehiclebody.
—Donotdrivefasterthanwalkingspeed.

ZA\WARNING
Afterdrivingthroughwaterormud,theeffec-
tivenessofthebrakesmaybereduceddueto
moistureonthebrakerotorsandbrakepads.
Afewcarefulbrakeapplicationsshoulddryoff


thebrakesandrestorethefullbrakingeffect.

76
@)Note
—Vehiclecomponentssuchastheengine,
transmission,suspension,orelectricalsys-
tem,canbeseverelydamagedbydriving
throughwater.
—AlwaysswitchtheStart/Stopsystem”off
whendrivingthroughwater>page80.
G)Tips
—Determinethedepthbeforedrivingthrough
water.
—Donotstopthevehicle,driveinreverse,or
switchtheengineoffwhendrivingthrough
water.
— Keepinmindthatoncomingvehiclesmay
createwavesthatraisethewaterleveland
makeittoodeepforyourvehicletodrive
throughsafely.
—Avoiddrivingthroughsaltwater,because
thiscancausecorrosion.
aireaMNeLNacelaera(olery
driving

Theamountoffuelconsumption,theenviron-
mentalimpact,andtheweartotheengine,
brakes,andtiresdependsmostlyonyourdriving
style.Notethefollowinginformationforefficient
andenvironmentally-consciousdriving:
— Donotlettheenginerunwhilethevehicle
parked.
—UsetheStart/Stopsystem>page80.
—Turnoffelectricalequipmentthatisnotneed-
ed, forexampleseatheating*.
—Anticipateupcomingtrafficsituationswhile
drivingtoavoidunnecessaryaccelerationand
braking.
—Utilizetheenginebrakingeffect.
—Avoiddrivingshortdistancesorathighspeeds
whenpossible.
—Avoidaddingextraweighttothevehicleifpos-
sible,forexamplebynotleavingroofracksor
bike
racksinstalledwhentheyarenotneeded.
—Havemaintenanceperformedregularlyonthe
vehicle.
—Donotdrivewithwintertiresduringthesumm-
er,

8W0012721BG
Airbagsystem


thevehiclebatterywithapyrotechniccircuit
interrupter.
—Workonthepyrotechniccircuitinterrupter
mustonlybeperformedbyaqualified
technicianswhohavetheexperience,in-
formationandspecialtoolsnecessaryto
performtheworksafely.
—Ifthevehicleorthecircuitinterrupteris
scrapped,allapplicablesafetyprecautions
mustbefollowed.
OtherthingsthatcanaffectAdvanced
Airbagperformance
Changingthevehicle'ssuspensionsystemcan
changethewaythattheAdvancedAirbagSystem
performsinacrash.Forexample,usingtire-rim
combinationsnotapprovedbyAudi,loweringthe
vehicle,changingthestiffnessofthesuspension,
includingthesprings,suspensionstruts,shock
absorbersetc.canchangetheforcesthatare
measuredbytheairbagsensorsandsenttothe
electroniccontrolunit.Somesuspensionchanges
can,forexample,increasetheforcelevelsmeas-
uredbythesensorsandmaketheairbagsystem
deployincrashesinwhichitwouldnotdeployif
thechangeshadnotbeenmade.Otherkindsof
changesmayreducetheforcelevelsmeasuredby
thesensorsandpreventtheairbagfromdeploy-
ingwhenitshould.

ZA\WARNING
Changingthevehicle'ssuspensionincluding
useof unapprovedtire-rimcombinationscan
changeAdvancedAirbagperformanceandin-
creasetheriskofseriouspersonalinjuryina
crash.
—Neverinstallsuspensioncomponentsthat
donothavethesameperformancecharac-
teristicsasthecomponentsoriginallyinstal-
ledonyourvehicle.
—Neverusetire-rimcombinationsthathave

notbeenapprovedbyAudi.

Kneeairbags
preaal)aCeaitLs-eh)
Thekneeairbagsystemcanprovidesupplemen-
talprotectiontoproperlyrestrained frontseat
occupants.
= g
=
8

Fig.231Driver'skneeairbag
Thedriverkneeairbagisintheinstrumentpanel
underneaththesteeringwheel>fig.231,the
airbagforthepassengerisataboutthesame
heightintheinstrumentpanelunderneaththe
glovecompartment.
Thekneeairbagoffersadditionalprotectionto
thedriver'sandpassenger'skneesandupperand
lowerthigh areasandsupplementstheprotec-
tionprovidedbythesafetybelts.
Ifthefrontairbagsdeploy,thekneeairbagsalso
deployinfrontalcollisionswhenthedeployment
thresholdstoredinthecontrolunitismet
=page271,Moreimportantthingstoknow
aboutfrontairbags.
Inadditiontotheirnormalsafetyfunction,safe-
tybeltshelpkeepthedriverorfrontpassengerin
positioninafrontalcollisionso thattheairbags
canprovidesupplementalprotection.
Theairbagsystemisnotasubstituteforyour
safetybelt.Rather,itispartoftheoveralloccu-
pantrestraintsysteminyourvehicle.Alwaysre-
memberthattheairbagsystemcanonlyhelpto
protectyouifyouarewearingyoursafetybelt
andwearingitproperly.Thisiswhyyoushouldal-
wayswearyoursafetybelt,notjustbecausethe
lawrequiresyoutodoso>page253,Generalin-
formation.
277
>

8W0012721BG

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Steering
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alsorefertoElectromechanicalsteering..142
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Stepsfordeterminingcorrectloadlimit...336
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Storagecompartments................0.63
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Sunshade
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