2003 PORSCHE 911 CARRERA Owners Manual

ChangingWheels

A
Warning!
Failure
to
followtheseinstructionsmayre-
sultinseriouspersonalinjuriestoyouorto
bystanders.
Beforechangingthewheel
I>Ifyouhaveaflattire,moveasafedistance
offtheroad.
Turntheemergencyflasheron
anduseotherwarningdevicestoalertother
motorists.
I>Donotparkyourvehiclewhereitmaycontact
drygrass,brushorotherflammablema-
terials.Thehotpartsoftheexhaustsystem
could
set
suchmaterialsonfire,thereby
causingbothpropertydamageandsevereor
fatalphysicalinjury.

I>
Passengersmustnotremaininthevehicle
whenitisjacked
up.
I>Before
youchangeawheel,besurethe
groundislevelandfirm.Ifnecessary,usea
boardunderthejacktoensurethatthejack
doesnotsinkintotheground.

I>Setthe
parkingbrakeandblockthewheels
oppositetheflattireontheothersideofthe
vehicle.
While
operatingthejack
I>The
jackisonlytobeusedforchanginga
wheel.Donotuseitasasupporttowork
underthecar.
I>Thecarmustbejackeduponlyattheillus-
tratedjackingpoints.
Liftingatanyotherplacemaydamagetheve-
hicleormayresultinpersonalinjury.
Neverjackthecarupbythebodyorthe
bumpers.

I>Forsafety
reasonsdonotusetireinflating
bottles.
Donotusecommerciallyavailablesealant
bottles.

Sequence
ofoperation
A

Warning!
Thejackmustbeusedonlytoraisethecar
forwheelchanging.
Thejackmustneverbeusedasasupport
toworkunderneaththevehicle.Ifthejack
isaccidentallydislodged,youorbystanders
couldsufferseverepersonalinjury.

I>Neverjackupothervehiclesorotherloads
withthejack.
I>Alwaysplacethecaronstablesupportsifyou
havetoworkunderit.
Whenworkingunderthevehicle,alwaysuse
safetystandsspecificallydesignedforthis
purpose.
Pleaseuseasuitablekneeresttoprotectyour
clothingagainstsoiling.
I>I>I>
PracticalTips,EmergencyService
209

Jackingpointforfrontwheelchange
1.Slightlyloosenthewheelboltsofthewheel
tobechanged.
2.Setupjackonlyatthepointsprovided.
Thejackfootmustbeincontactoverits
wholearea.
Useasuitablesupportifnecessary.
3.Holdjackstillandwinditupuntilitshead
entersthejackingpointonthecar.
Onlyjackcarupuntilthewheeltobe
changediscompletelyofftheground.
210PracticalTips,EmergencyService
Jackingpointforrearwheelchange
4.Removetopwheelboltandscrewinassem-
blyaidfromthetoolkit.
Removetheremainingwheelbolts.
5.Changewheel.
6.Pleasenotechapter"Wheelbolts".
Insertfourwheelboltsandtightenbyhand.
Removeassemblyaid,screwinremaining
bolt.
Initiallytightenscrewsindiagonallyopposite
sequencesothatthewheeliscentered.
Referto"Spacerrings"and"Collapsiblespare
wheel"ifnecessary.
Screwinginassemblyaid
7.Lowercarandremovejack.
8.Tightenwheelboltsindiagonallyopposite
sequence.
Importantnote
Immediatelyafterchangingawheel,adjustthe
tirefillingpressure(refertoPage5)andusea
torquewrenchtochecktheprescribedtighte-
ningtorqueofthewheelbolts(130Nm).

Collapsiblesparewheel
Refertothechapter"Spacerrings"beforefitting
thesparewheel.
Ifincorrectlyfitted,thesparewheelmaycome
offwhilstdriving.
1.Mountthecollapsiblesparewheelonthe
vehiclebeforeinflatingit.
2.Screwfillerhoseofthecompressorontothe
tirevalve.
3.Insertplugofthecompressorintotheciga-
rettelighter.
Therequiredfillingpressurewillbereached
afterafewminutes.
4.Checkfillingpressurewiththepressuretes-
ter.
Requiredfillingpressure:
36psi(2.5bar).
Ifthepressureistoohigh,releasesomeair
bypressingthevalveinsert.
Afterusingthecollapsiblesparewheel
I>Releaseairbyunscrewingthevalveinsert.
Thetirewillreverttoitsoriginalshapeonly
afterseveralhours.Onlythencanitbe
stowedinthesparewheelrecessinthe
luggagecompartment.
Repair
I>Thecollapsiblesparewheelmustberepaired
onlybythemanufacturer.Pleaseconsultyour
authorizedPorschedealerifthecollapsible
sparewheelisdefective.
PracticalTips,EmergencyService
211

Electrical
System

Inordertoavoiddamageandfaultsinelectrical
orelectronicsystems,electricalaccessories
shouldbeinstalledatyourauthorizedPorsche
dealer.
[>OnlyuseaccessoriesauthorizedbyPorsche.
/!\Warning!
Riskofshortcircuitandfire.
Replacingfusesorrelayswiththeengine
runningortheignitiononcouldcauseelec-
tricalshock.
[>
Disconnectedthebatteryduringallworkon
theelectricalsystem.Seechapter"Battery".
Relays
Defectiverelaysshouldbechangedonlybyan
authorizedworkshop.
212PracticalTips,EmergencyService
Radiocode
Thetheft-protectioncodeoftheradiomustbe
enteredagainifthebatterywasdisconnected.
Alarmsystem,centrallocking
Thestatusofthecentrallockingandalarm
systemisnotchangedbydisconnectingthe
battery.
Whenthebatteryisdisconnected,thealarmsys-
temceasestofunction.
Overloadprotection
Ifthecentrallockingsystemisoperatedmore
thantentimeswithinaminute,furtheroperation
isblockedfor30seconds.
Loadswitch-offaftertwohours
orfivedays
Iftheignitionkeyisremoved,loadswhichare
switchedonorinstandby(e.g.powerwindows,
luggagecompartmentlighting,interiorlight,
radio)areautomaticallyswitchedoffafterap-
proximately2hours.
Ifthevehicleisnotstartedorunlockedwiththe
remotecontrolwithinfive
days,
theremote
controlstandbyfunctionisswitchedoff(topre-
ventdischargingofthevehiclebattery).
1.Inthiscase,unlockthedriver'sdoorwiththe
keyatthedoorlock.
Leavethedoorclosedinordertopreventthe
alarmsystemfrombeingtriggered.
2.Pressbutton1ontheremotecontrol.
Theremotecontrolisnowactivatedagain.

A-Diagnosticsocket

Replacing
fuses
Inordertopreventdamagetocablesandcon-
sumersintheelectricalsystemduetoshortcir-
cuitsandoverloads,theindividualcircuitsare
protectedbyfuses.
Thefuseboxisatlowerleftinthedriver'sfoot-
wellandisprotectedwithaplasticcover.
A-Plasticgripper
B-Sparefuses
1.Beforereplacingafuse,switchoffallelectri-
calconsumersandremovetheignitionkey.
2.Toopen,pullthecoveroffatthefingerhole
(arrow).
Thefuseplanandinstructionsforemer-
gencyunlockingoftheluggagecom-
partmentlidscanbefoundontheinsideof
thecover.
3.Tocheckorreplaceafuse,removeitfrom
thespringclipusingtheplasticgripperA.
Ablownfuseindicatesanoverloadinthecir-
cuitandcanbeidentifiedbythemeltedmetal
strip.
4.Replaceonlywithfusesofthesamerating.
SparefusesBareinthelowestsectionof
thefusebox.
Importantnote
t>Ifafuseblowsrepeatedly,pleaseimmediately
consultanauthorizedPorschedealer,sothat
theshortcircuitcanbelocatedandcor-
rected.
t>Nevertryto"repair"fuses:youmaycause
seriousdamagetootherpartsoftheelectri-
calsystem.
t>t>t>
PracticalTips,EmergencyService
213

Emergencyunlockingoftheluggage
compartmentlidandengine
compartmentlid
Ifthebatteryisdischarged,thelidscanbe
openedonlywiththeaidofadonorbattery.
Unlockinglids
1.Usethekeytounlockthevehicleatthedoor
lock.
Leavethekeyinthedoorlock.
2.Removeplasticcoveroverthefusebox.
3.PulloutpositiveterminalAinthefusebox.
4.Useajumper
cabletoconnectthepositive
terminalofthedonorbatterywithpositive
terminalAinthefuse
box.
214PracticalTips,EmergencyService
Note
Ifthevehicle
waslocked,thealarmhornwill
soundwhenthenegativecableisconnected.
5.Usethesecondjumpercabletoconnectthe
negativeterminalofthedonorbatterywith
latchstrikerB.
6.Switchthealarmsystemoffbylockingand
unlockingatthedoorlock.
7.Unlocktheenginecompartmentlidorlug-

gagecompartment
lidwiththeswitch.
8.Disconnectthenegativecablefirst,thenthe
positivecable.
9.PushpositiveterminalAintothefusebox
andpushontheplasticfuseboxcover.

Note
Theenginecannot
bestartedwiththismethod.
Pleaseobservethechapter"EmergencyStarting
withJumperCables"forthispurpose.

Battery
A
Warning!
Riskofshortcircuitandfire.
t>Observeallwarningnotesonthebattery.
t>Disconnectthebatteryduringallworkonthe
electricalsystem.
t>Donotlaytoolsorothermetalobjectsonthe
batteryastheycouldcauseashortcircuit
acrossthebatteryterminal.

Hydrogengasgeneratedbythebattery
couldcauseanexplosion,resultingin
severepersonalinjuries.

t>Donotexposethebatterytoanopenflame,
electricalsparkoralitcigarette.
Risk
ofseverepersonalinjuryanddamage
tothefabric,metalorpaint.

t>Weareyeprotection.
t>Donotallowbatteryacidtocomeincontact
withyourskin,eyes,fabricorpaintedsur-
faces.
t>Ifyougetelectrolyte,whichisanacid,inyour
eyesoronyourskin,immediatelyrinsewith
coldwaterforseveralminutesandcalladoc-
tor.
t>Spilledelectrolytemustberinsedoffatonce
withasolutionofbakingsodaandwaterto
neutralizetheacid.

Batteryposts,terminalsandrelatedacces-
soriescontainleadandleadcompounds,
chemicalsknowntotheStateofCalifornia
tocausecancerandreproductiveharm.

t>Alwaysprotectyourskinbywashingthor-
oughlywithsoapandwater.
Note
Iftheremainingfuelislessthanapprox.1/3of
theoveralltankcapacitywhilethebatteryisdis-
chargedordisconnected,incorrectinformation
willbedisplayedwhen
thebatteryischarged
orreconnected.

Thefuellevelgaugemayindicate
more
fuel
thanisactuallyinthetank.
Therangeonremainingfueldisplayedbytheon-
boardcomputermaybehigherthaninreality.
t>Inthiscase,inordertoensurethatgauges
arepreciseandthatyoudonotrunoutof
fuel,youshouldfillupyourcarwithfuel.
Chargestate
Awellchargedbatterywillnotonlypreventstart-
ingproblemsbutwillalsolastlonger.

Inordertoavoiddischargingthebattery
unintentionally:

t>Curtailunnecessarypowerconsumption,par-
ticularlyincitytrafficorwhentravellingshort
distancesonly.
t>Alwaysremovetheignitionkeywhenleaving
thecar.
t>AvoidusingthePorscheCommunication
Managementsystemwhentheengineisnot
running.
t>t>t>
PracticalTips,EmergencyService
215

Batterycare
[>
Ensurethatbatteryissecurelymounted.
[>Keepterminalsandconnectionscleanand
properlytightened.
Corrosioncanbepreventedbycoatingthe
terminalsandconnectionswithpetroleumjelly
orsiliconespray.
[>
Ensurethatventcapsaresecurelytightened
topreventspillage.
216PracticalTips,EmergencyService

Checkingtheelectrolytefluidlevel

Generally,theelectrolytelevelmustbechecked
moreofteninsummerthaninthewinter,and
moreoftenwhendrivinglongdistances.
[>Whenaddingwater,useonlycleanvessels.
Innocasemayalcohol(e.g.windowcleaner
residues)bepermittedtoenterthebattery.
[>
Unscrewandopenthefillerventcapsofeach
cell.
Withthecarhorizontal,thefluidlevelshould
meettheindicatormarkineachcell.
[>
Ifnecessary,topupwithdistilledwater.

Donotuse
acid.
Onlyfilluptothemark,otherwisetheelectro-
lytewilloverflowwhenthebatteryisbeing
chargedandcausedamage.

Batterycharging

Automotivebatteriesloosetheirefficiencywhen
notinuse.
Thechargeavailableinyourbatterycanbe
measuredwithabatteryhydrometer.
Werecommendthatthebatteryvoltagebe
testedbyyourPorschedealerwhohastheap-
propriateequipment.
Ifthecarisnotdrivenforprolongedperiods,
thebatterymustbechargedatleastevery6
weeks.
Adischargedbatteryallowsrapidformationof
sulfates,leadingtoprematuredeteriorationof
theplates.