brake rotor AUDI S4 2019 Owners Manual

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
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

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Careandcleaning



—Toreducetheriskofcuts,protectyourself—Toreducetheriskofpaintdamage,donot
fromsharpmetalcomponentswhenwash-washthevehicleindirectsunlight.
ingtheunderbodyortheinsideofthewheel—Toreducetheriskofdamage,donotwash
housings.decorativedecals*withapressurewasher.
—Afterwashingthevehicle,thebrakingeffect—Toreducetheriskofdamagetothesurface,
maybedelayedduetomoistureonthedonotuseinsectremovingsponges,kitchen
brakerotorsoriceinthewinter.Thisin-sponges,orsimilaritems.
creasestheriskofanaccident.Thebrakes—Whenwashingmattefinishpaintedvehicle
mustbedriedwithafewcarefulbrakeappli-components:
cations.—Toreducetheriskofdamagetothesur-

face,donotusepolishingagentsorhard
@)Notewax.
—Ifyouwashthevehicleinanautomaticcar—Neveruseprotectivewax.Itcandestroy
wash,youmustfoldtheexteriormirrorsinthemattefinisheffect.
toreducetheriskofdamagetothemirrors.—Donotplaceanystickersormagnetic
Powerfoldingexteriormirrors*mustonlysignsonvehiclecomponentspaintedwith
befoldedinandoutusingthepowerfoldingmattefinishpaint.Thepaintcouldbe
function.damagedwhenthestickersormagnets
—To reducetheriskofdamagetotherimsareremoved.
andtires,comparethewidthbetweenthe
wheelsonyourvehiclewiththedistancebe-@)Forthesakeoftheenvironment
tweentheguiderailsinthecarwash.Onlywashthevehicleinfacilitiesspeciallyde-
—Toreducetheriskofdamage,comparethesignedforthatpurpose.Thiswillreduce the
heightandwidthofyourvehiclewiththeriskofdirtywatercontaminatedwithoilfrom
heightandwidthoftheinsideofthecarenteringthesewersystem.
wash.
Cleaningandcareinformation
Whencleaningandcaringforindividualvehiclearenotlisted,consultanauthorizedAudidealer
components,refertothefollowingtables.TheorauthorizedAudiServiceFacility.Alsofollow
informationcontainedthereissimplyrecommen-__theinformationfoundin>A.
dations.Forquestionsorforcomponentsthat
Exteriorcleaning






ComponentSituationSolution
Windshieldwiper|DepositsSoftclothwithglasscleaner,>page 54
blades
Headlights/DepositsSoftspongewithamildsoapsolution®
Taillights
Sensors/DepositsSensors:softclothwithasolvent-freecleaningsolution
cameralensesCameralenses:softclothwithanalcohol-freecleaningsol-
ution
Snow/iceHandbrush/solvent-freede-icingspray
WheelsRoadsaltWater
BrakedustAcid-freespecialcleaningsolution>

343

Emergencyassistance

@)Note
Whenremovingorinstallingthewheel,the
rim
couldhitthebrakerotoranddamagethe
rotor.Workcarefullyandhaveasecondper-
sonhelpyou.
G)Tips
—Whenmountingtireswithunidirectional
treaddesignmakesurethetreadpatternis
pointedtherightway>page354.
— Thewheelboltsshould becleanandeasyto
turn.Checkfordirtandcorrosiononthe
matingsurfacesofboththewheelandthe
hub.Removealldirtfromthesesurfacesbe-
foreremountingthewheel.
Unidirectionaltires
Aunidirectionaltireprofileisidentifiedbyarrows
onthetiresidewallthatpointintherunningdi-
rection.Youmustalways maintain thespecified
runningdirection.Thisisnecessarytoensurethe
tire'soptimumperformanceinregardtoadhe-
sion,runningnoise,andfriction,andtoreduce
theriskofhydroplaning.
Tobenefitfullyfromtheadvantagesoftheuni-
directionaltiredesign,youshouldreplacefaulty
tiresassoonaspossibleandrestorethecorrect
runningdirectiononallofthetires.
>Reinstallthecapsonthewheelboltsifnecessa-
ry.
>Storethevehicletoolkitinitsdesignated
place.
>Iftheremovedwheeldoesnotfitinthespare
wheel well,storeitsecurelyintheluggage
compartment>page64.
>Checkthetirepressureontheinstalledwheel
assoonaspossible.
>CorrectthetirepressureandstoreitintheIn-
fotainmentsystem>page341.
>Thewheelbolttighteningspecificationmustbe
90ftlbs(120Nm).Haveitcheckeditassoon
as possiblewithatorquewrench.Drivecareful-
lyuntilthen.
354
>Havethefaultywheelreplacedasquicklyas
possible.
@)Tips
—Ifyounoticethatthewheelboltsarecor-
rodedanddifficulttoturnwhilechanginga
tire,they should bereplacedbeforeyou
checkthetighteningtorque.
—Driveatreducedspeeduntilyouhave the
tighteningtorqueschecked.
Notesonwheelchanging
Pleasereadtheinformation>page329ifyou
aregoingtouseareplacementtirewhichisdif-
ferentfromthetiresonyourvehicle.
Afteryouchangeatire:
—Checkthetirepressureonthereplacement
tireimmediatelyafterinstallation.
—Havethewheelbolttighteningtorque
checkedwithatorquewrenchassoonaspos-
siblebyyourauthorizedAudidealerorquali-
fiedworkshop.
— Withsteelandalloywheelrims,thewheel
boltsarecorrectlytightenedat atorqueof
90ftlbs(120Nm).
—
Ifyounoticethatthewheelboltsarecorroded
anddifficulttoturnwhilechangingatire,
theyshouldbereplacedbeforeyoucheckthe
tighteningtorque.
—Replacetheflattirewithanewone andhave
itinstalledonyourvehicleassoonaspossi-
ble.Remountthewheelcover.
Untilthen,drivewithextracareandatreduced
speeds.

ZAWARNING
—Ifyouaregoingtoequipyourvehiclewith
tiresorrimswhichdifferfromthosewhich
werefactoryinstalled,thenbesuretoread
theinformation>page329.
—Alwaysmakesurethedamagedwheelor
evenaflattireandthejack*andtoolkitare
properlysecuredintheluggagecompart-
mentandarenotlooseinthepassenger
compartment.>