2003 PORSCHE 911 CARRERA light

41CD
BrakewarninglightUSA
@BrakewarninglightCanada
Ifthewarninglightsintheinstrumentpaneland
on-boardcomputergoonwhiledriving,the
brakefluidlevelmaybetoolow,or(ifthebrake
pedaltravelhasincreased)oneofthetwobrake
circuitsmayhavefailed.
Agreaterbrakingpressurewillberequired,
stoppingdistanceswillbelongerandthebrak-
ingbehaviorwillchange,particularlyincurves.
Withcorrectlyadjustedbrakes,andacorrectly
workingbrakesystem,thepedaltraveltothe
pointofbrakeactuationshouldbe
1-3/16
in.to

1-9/16
in.or30to40mm.
Wheneverthebrakepedaltravelexceedsthis
distance,havethebrakesystemchecked.
54Controls,Instruments
Brakepedal
/!\Warning!
Riskofanaccident.
Anyobstructionofthebrakepedalcould
increasethestoppingdistance.
I>Alwayscheckthemovementofthebrake
pedalbeforedrivingandmakesurethatitis
notobstructedbyafloormatoranyother
object.
I>Securethefloormattopreventitfromsliding
intopositionsthatcouldinterferewiththe
safeoperationofyourvehicle.
YourPorschedealerwillbegladtoofferyou
floormatsofthecorrectsizeincludingase-
curingpossibility.
Note
Incaseoneofthetwobrakecircuitsfails,in-
creasedpedaltravelisrequiredtobringyour
vehicletoafullstop.
/!\Warning!
Toavoidoverheatingandprematurewear
ofthebrakes:
I>Beforedescendingasteepgrade,reduce
speedandshiftthetransmissionintoalower
gearordrivingpositiontocontrolspeed.
I>Donot"ridethebrakes"byrestingyourfoot
onthepedalwhennotintendingtoapply
brakepressure.
I>Donotholdthepedaldowntoolongortoo
often.
Thiscouldcausethebrakestogethotand
notfunctionproperly.

Brake
booster
Thebrakeboosterassistsbraking
only

whentheengineisrunning.

Whenthecarismovingwhiletheengineisnot
running,orifthebrakeboosterisdefective,
morepressureonthebrakepedalisrequiredto
bringthecartoastop.
Moistureorroadsaltonbrakesaffectsbraking.
Whenthevehicleisdrivenonsaltedroadsfor
extendedperiods,thebrakesshouldbewashed
downthoroughlyaboutevery2weeks.Anauto-
maticcarwashfacilitycannotdothisjob
properly.
Brakeswilldryafterafewcautiousbrakeappli-
cations.

A.Warning!
Drivingthroughwatermayreducethetrac-
tion.
Moistureonbrakesfromroadwater,car
wash,orcoatingofroadsaltmayaffect
brakingefficiency.
t>Cautiously
applybrakes
to
testbrakesafter
beingexposed.
Brakewear
Yourcarhasexcellentbrakes,buttheyarestill
subjecttowear.Therateatwhichtheywear
dependsonhowthebrakesareused.

t>
Havethebrakesysteminspectedattheinter-
valsrecommendedinyourMaintenance
Booklet.

8
@
WarninglightUSA
WarninglightCanada

Ifthelightsintheinstrumentpanelandon-board
computerstayonwhentheengineisrunningor
comeonwhiledriving,thebrakepadsareworn,
excessively.
t>Donotcontinuetooperatethevehicle.
HaveyourauthorizedPorschedealerinspect
orreplacethebrakepads.
Brakepads
Wearonthebrakepadsandbrakediscs
dependstoagreatextentonthedrivingstyle
andtheconditionsofuseandthereforecannot
beexpressedinactualmilesontheroad.
Thehigh-performancebrakesystemisdesigned
foroptimalbrakingeffectatallspeedsandtem-
peratures.
Certainspeeds,brakingforcesandambient
conditions(suchastemperatureandhumidity)
thereforemightcausethebrakestosqueal.

Newbrakepadsorlinings

Newbrakepadshavetobe"brokenin",and
thereforeonlyattainoptimalfrictionwhenthe
carhascoveredseveralhundredmilesorkm.
Theslightlyreducedbrakingabilitymustbe
compensatedforbypressingthebrakepedal
harder.Thisalsoapplieswheneverthebrake
padsandbrakediscsarereplaced.
Controls,Instruments
55

OperationoftheABSsystem
Awheelspeedsensorismountedtoeachofthe
fourwheels.Ifwheellock-upofeitherofthe
frontwheelsortherearwheelsissensedduring
braking,thebrakepressureisadjustedautomat-
icallyuntilthewheelnolongerslips.Thebrake
pressureisregulatedforeachfrontwheelindi-
viduallyandforbothoftherearwheels
together.
Onaroadsurfacewhichisslipperyononlyone
side,therearwheelwhichisbrakingontheslip-
perysurfacedeterminesthebrakepressure
whichwillbeappliedequallytobothrearwheels.
Thisensuresthatdirectionalstabilityismain-
tained.However,ifbrakingforcesapproachthe
wheellock-uppointforallwheels(panicbraking)
theABSsystemwillintervenetoprovidearapid
rythmicbraking.
TheproperoperationofABSisperceivedbythe
driverasapulsatingbrakepedalinconjunction
withaudiblenoiseandperhapssomevibration.
I>Ifyouexperiencethesesensationswhiledriv-
ingoraroadsurfacewithquestionabletrac-
tion,reducevehiclespeedappropriateforthe
prevailingroadconditions.
Thefunctionalreadinessofallthemainelectrical
componentsoftheABSischeckedbyanelec-
tronicmonitoringsystembothbeforeandwhile
youdrive.

8
WarninglightUSA
@
WarninglightCanada

WhentheignitionisswitchedontheABSwarn-
inglightwilllightupwhilethesystemiselec-
tronicallyinterrogatedandgoesoutwhenthe
engineisstartedifthecheckisnotyetcom-
plete.
IftheABSwarninglampfailstogoout,thisindi-
catesthatABShasbeendeactivatedduetoa
fault.Ifthewarninglightsintheinstrumentpanel
andon-boardcomputerlightupwhileyouare
driving,thisindicatesthatafaulthasoccurred.
Inbothcases,normalbraking,asinvehicles
withoutABS,isstillretained.
TheABSsystemshould,however,beexamined
atanauthorizedPorschedealerimmediatelyto
preventtheoccurrenceoffurtherfaults.
I>IftheABSsystembecomesinoperative,take
yourvehicletoyourauthorizedPorsche
dealerimmediately.
/!\Warning!
ThecontrolunitoftheABSbrakesystemis
setforstandardtiresize.Ifnon-standard
tiresareinstalled,thecontrolunitmaymis-
interpretthespeedofthevehicle,because
ofthevariantdataitreceivesfromthesen-
sorsontheaxles.
I>Useonlytiremakesandtypestestedby
Porsche.
Controls,Instruments
57

PorscheStabilityManagement
(PSM)
PSMisanactivecontrolsystemforstabilizing
thevehicleduringextremedrivingmaneuvers.
/!\.Warning!
Theincreasedcontrolthatisprovided
shouldnotinduceyoutotakegreaterrisks
withyoursafety.Thelimitsdictatedbythe
lawsofphysicscannotbeovercome,even
withPSM.
Theriskofaccidentsduetoinappropriate
speedcannotbereduced,evenbyPSM.
Thedriverbearstheresponsibilityforall
drivingmaneuvers.
[>Adaptyourdrivingstyletotheprevailingroad
andweatherconditions.
[>Obeyalltrafficlaws.
AdvantagesofPSM
-Superiortractionandlane-holdingabilityinall
drivingsituations-evenonroadsurfaces
withvaryingfriction.
-PSMactivelystabilizesthevehicleduringdy-
namicdrivingmanoeuvres(e.g.rapidsteering
movements,duringlanechangesoronalter-
natingcurves).
58Controls,Instruments
-Improvedbrakingstabilityincurvesandon
differentorvaryingroadsurfaces.
Readinessforoperation
ThePSMisengagedautomaticallyeverytime
youstarttheengine.
Function
Sensorsatthewheels,brakes,steeringsystem
andenginecontinuouslymeasure:
-Drivingspeed
-Directionoftravel
-Lateralacceleration
-Rateofturnaboutthevehicle'sverticalaxis
ThePSMusesthesevaluestodeterminethe
directionoftraveldesiredbythedriver.
PSMintervenesandcorrectsthecourseifthe
vehicle'sactualdirectiondeviatesfromthe
desiredcourse(steering-wheelposition).It
brakesindividualwheelsasneeded.Ifnecess-
ary,thePSMadditionallyinfluencestheengine
powerorthegear-changingcharacteristicofthe
Tiptronicinordertostabilizethevehicle.
TheeventsbelowinformthedriverofPSMcon-
troloperationsandwarnhimtoadapthisdriving
styletotheroadconditions:
-Theinformationlightintheinstrumentpanel
lightsup.
-Hydraulicnoisescanbeheard.
-Thevehicledeceleratesandsteering-wheel
forcesarealteredasthePSMcontrolsthe
brakes.
-Reducedenginepower.
-Thebrakepedalpulsatesanditspositionis
changedduringbraking.
However,itispossibleatanytimetoachieve
fullvehicledecelerationbyincreasingthefoot
pressureslightlyonthebrakepedal.

Switching
offPSM
[>
Pressthe"PSMOFF"logooftherocker
switch.
PSMisswitchedoffafterabriefdelay.
WithPSMswitchedoff,thePSMOFFwarning
lightintheinstrumentpanelandtherocker
switchindicatorlightarelit.
Duringbraking,thevehicleisstabilizedeven
whenPSMisswitchedoff.
One-sidedspinningofthewheelsisprevented,
evenwithPSMswitchedoff.
PSMshouldalwaysbeswitchedonduring
"normal"driving.
However,itcanbeofadvantagetoswitchoff
PSMtemporarilyinexceptionalsituations:
-Onaloosesurfaceorindeepsnow
-When"rockingthevehiclefree"
-Whenusingsnowchains.
Tiptronicvehicles:WhenthePSMisswitched
offtheslipmonitoringfunctionoftheTiptronicis
alsodeactivated.

Switching
PSMbackon
[>
Presstheindicatorlightintherockerswitch.
PSMisswitchedonafterabriefdelay.

e

Infonnationlight
-ThePSMinformationlightintheinstrument
panellightsupforalampcheckwhentheig-
nitionisswitchedon.
-ThelightindicatesPSMinterventioneven
whenPSMisswitchedoff(brakeregulationin
theeventofone-sidedwheelspin).
4D
Warninglight
-Thewarninglightintheinstrumentpanel
lightsupincombinationwiththeindicatorlight
intherockerswitchforalampcheckwhen
theignitionisswitchedon.
-Incombinationwiththeindicatorlightinthe
rockerswitch,thelightindicatesthatPSMis
switchedoff.
-Thelightsintheinstrumentpanelandinthe
on-boardcomputerindicateadefect.
PSMisoutoforder.
Thefaultshouldberemediedimmediatelyat
anauthorizedPorschedealer.
Towing
Refertothechapter"Towing".
Handbraketests
Handbrake
tests
ontherollerteststandmust
beperformedonlywiththeignitionswitchedoff.
Refertothechapter"Four-wheeldrive".
Controls,Instruments
59

Operation,Instruments
1Sidevent
2Ignition/starterswitchwithsteeringlock
3Spaceforhands-freemicrophonefor
telephone
4Turnsignals/
headlightdimmer/flasherlever
5Instrumentpanel
6Horn
7Windshieldwiper/washerlever
8Emergencyflasherswitch
9Rockerswitchesfor
PorscheStabilityManagement(PSMJ,
footwelllight,
rearwindowwiper
10Readinessdisplayforalarmsystem
11Centralvent
12Cupholder
13Controlpanelforheating,ventilation,
airconditioning
14Rockerswitchesfor
centrallocking,
rearwindowanddoormirrorheating,
rearwindowwiper,
convertibletopoperation
15Speaker
16Lightswitch
17ToggleswitchesforTiptronic
18Operatingleverforon-boardcomputer
19Lockingleverforsteering-wheeladjustment
20Operatingleverforautomaticspeedcontrol
21Wipeintervalcontrol!
rain-sensorsensitivitycontrol
22Rockerswitchesforseatheating
23Rockerswitchforglassslidingroof(Targa)
24Rockerswitchforrollerblind(Targa)
25Radio
26Cigarettelighter
27Glovecompartment
28Interiortemperaturesensor
Controls,Instruments
63

Switchposition
1
Ignitionison.
Allelectricalequipmentcanbeswitchedon.
Thewarninglightslightupforalampcheck.
Pleasenotethedescriptionoftheindividual
warninglights.
I>Whenturningthekeytoposition1,relievethe
steeringlockwithaslightsteeringmovement.
Note
Toconservebatterypoweratlowrpm(traffic
jams,towndrivingetc,),switchoffallelectrical
consumerswhicharenotneededatthatmo-
ment.

Switchposition2
Startingtheengine
I>
Turnthekeyfromposition1toposition
2.
Theclutchpedalmustbedepressedfully
beforethestarterwillengage.

Thefirstoperationofthestarterisendedauto-
maticallywhentheenginestarts.
Iftheenginedoesnotstart,subsequentstarter
operationswillnotbeendedautomatically.
Iftheenginedoesnotstartatthefirsttimeor
stallsatanytime,thekeymustbereturnedto
positionO.
Whentheengineisrunning,thewarninglights
shouldgooff.Ifalightdoesnotgooff,take
appropriateactionasindicatedinthismanual.

Switchingengineoff
I>
Turntheignitionkeyfromposition1toposi-
tion
O.
A
Warning!
Riskofanaccident.
Thesteeringwheelwilllockandwillcause
lossofsteering.
I>
Neverremovekeyfromtheignitionlockor
turnthekeyoffwhilethevehicleismoving.

I>To
avoidbatteryrun-down,alwaysremovethe
ignitionkeyfromtheignitionlock.
Seealsothechapteron"Battery".

I>
Turnthesteeringwheeluntilthesteeringlock
isengaged.

Note
On
vehicleswithTiptronicitisonlypossibleto
removetheignitionkeyiftheselectorleverisin
position
"P".
Gong

Ifyouleavethekeyintheignition/steeringlock,
agongwillsoundwhenthedriver'sdooris
opened.Thisisaremindertoremovethekey.
Controls,Instruments
65

Starting
Procedures
Seealsothechapteron"Immobilizer".
/!\Warning!
Serious
injurymayresultifyouarein-
volvedinacollisionwithout
having
fastened
thesafetybelts.

[>
Fastensafetybeltsbeforedrivingaway.
Beforestartingtheengine
[>Applythehandbrake.

[>Manualtransmission:

Movethegearshiftleverintoneutral.
Theclutch
pedalmustbedepressedfully
beforethestarterwillengage.
[>Tiptronic:

Movetheselectorleverto"P"or"N".
Temperaturesensorsontheengineautomat-
icallyprovidethecorrectfuel/airmixturere-
quiredforstarting.
Therefore,
itisnotnecessarytodepressthe
acceleratorpedal
whilestartingacoldora
warmengine.

[>As
soonastheenginestarts,releasetheigni-
tionkey.
66Controls,Instruments
Thefirstoperationofthestarterisendedauto-
maticallywhentheenginestarts.
Iftheenginedoesnotstart,subsequentstarter
operationswillnotbeendedautomatically.
Iftheenginefailstostartafter10or15sec-
ondsofcranking:

[>
Waitabout10secondsbeforeengagingthe
starteragain.
[>
Donotlettheengineidletowarm
up.
[>

Whenstartingtheengine,bereadytodrive
immediately.
Drivevehicleatmoderatespeedsandavoid
enginespeedsabove4,200rpmduringthe
first5minutes.

/!\Danger!
Engineexhaustfumeshavemanycompo-
nentswhichyoucansmell.Theyalsocon-
taincarbonmonoxide
(CO),
whichisaco-
lorlessandodorlessgas.
Carbonmonoxidecancauseunconscious-
nessandevendeathifinhaled.

[>
Neverstartorlettheengineruninanen-
closed,unventilatedarea.
Itisnotrecommendedtositinyourcarfor
prolongedperiodswiththeengineonandthe
carnotmoving.

Anunattendedvehiclewitharunningen-
gineispotentiallyhazardous.
Ifwarninglightsshouldcomeontoindicate
improperoperation,theywouldgounno-
ticed.
[>

Neverleavetheengineidlingunattended.

Dangeroffire.

[>Donotparkoroperatethevehicleinareas
wherethehotexhaustsystemmaycomein
contactwithdrygrass,brush,fuelspillor
otherflammablematerial.

[>
If
yourcarcatchesonfireforanyreason,call
thefiredepartment.
Donotendangeryourlifebyattemptingto
putoutthefire.