2003 PORSCHE 911 CARRERA start up

HowEmissionControlWorks
Whenanautomobileengineisrunning,ituses
energygeneratedthroughthecombustionofa
mixtureofairandfuel.Dependingonwhethera
carisdrivenfastorslowlyorwhethertheen-
gineiscoldorhot,someofthefuel(hydrocar-
bons)maynotbeburnedcompletely,butmay
bedischargedintotheenginecrankcaseorex-
haustsystem.Additonalhydrocarbonsmayenter
theatmospherethroughevaporationoffuelfrom
thefueltank.Thesehydrocarbons(HC),whenre-
leasedintotheair,contributetoundesirablepol-
lution.
Inaddition,carbonmonoxide(CO)andoxidesof
nitrogen(NOx)contributetoengineemissions.
They,too,areformedduringthecombustion
processanddischargedintotheexhaustsys-
tem.
Toreducethesepollutants,yourPorscheis
equippedwithapreciselycalibratedfuelinjection
systemtoassureafinelybalancedair/fuelmix-
tureunderalloperatingconditions.
180Maintenance,CarCare
Oxygensensor
Theoxygensensor,installedintheexhaustpipe
continuouslysensestheoxygencontentofthe
exhaustandsignalstheinformationtoanelec-
troniccontrolunit.Thecontrolunitcorrectsthe
air/fuelratio,sotheenginealwaysreceivesan
accuratelymeteredair/fuelmixture.
Crankcaseventilation
Throughcrankcaseventilation,undesirable
emissionsfromtheenginecrankcasearenot
permittedtoreachtheoutsideatmosphere.
Theseemissionsarerecirculatedfromthe
crankcasetotheairintakesystem.Fromhere
theemissionsmixwiththeintakeairandare
laterburnedintheengine.
Catalyticconverters
Thecatalyticconvertersareefficient"clean-up"
devicesbuiltintotheexhaustsystemoftheve-
hicle.Thecatalyticconvertersburntheundesir-
ablepollutantsintheexhaustgasbeforeitis
releasedintotheatmosphere.
Theexclusiveuseofunleadedfueliscriti-
callyimportantforthelifeofthecatalytic
converters.Therefore,onlyunleadedfuel
mustbeused.
Thecatalyticconverterswillbedamaged
by:
-pushortowstartingthevehicle
-misfiringoftheengine
-turningofftheignitionwhilethevehicleis
movingor
-drivinguntilthefueltankiscompletelyempty
-byotherunusualoperatingconditions.
t>Donotcontinuetooperateyourvehicleunder
theseconditions,sincerawfuelmightreach
thecatalyticconverters.Thiscouldresultin
overheatingoftheconverters.Federallaw
prohibitsuseofleadedfuelinthiscar.

Enginecompartment
Theenginecompartmentandthesurfaceofthe
enginearetreatedwithacorrosion-inhibitorat
thefactory.
Ifdegreasingsolventsareusedtocleantheen-
ginecompartmentortheengineiswashed
down,theprocessalmostinvariablyremoves
thecorrosion-inhibitingcoating.Itisthenabso-
lutelynecessarytohaveadurablepreservative
appliedtoallsurfaces,bodyseams,jointsand
assembliesintheenginecompartment.Thisalso
applieswhencorrosion-inhibitorpartsarere-
placed.
Effectivecorrosion-proofingisparticularlyimport-
antduringthecoldweatherseason.Ifyourcar
isdrivenfrequentlyinareaswheresalthasbeen
spreadontheroads,thewholeenginecompart-
mentshouldbecleanedthoroughlyafterthe
wintertopreventsaltfromcausinganylasting
damage.Afullunder-bodywashshouldalsobe
performedatthesametime.
ACaution!
Riskofdamagetothegenerator.
I>Donotpointthecleaningjetdirectlyatthe
generator,orcoverthegenerator.
Windows
Theroaddustwhichsettlesonthewindshield
andwindowscontainsparticlesoftirerubber
andoilresidue.Theinteriortrimandupholstery
releaseparticles,particularlyinstrongsunlight,
whichcollectontheinsidesofthewindows.
Thesedepositsareaugmentedbyimpuritiesin
theairwhichentersthecarthroughthefreshair
vents.
I>Cleanallwindowsregularly,insideandout-
side,withPorschewindowcleaner.
I>Ifyouuseachamoisleatherforthewindows,
donotuseitforpaintworkasitwillotherwise
pickupacertainamountofpreservativeor
polishandcouldsmearthewindowsandthus
impairvision.
I>RemovedeadinsectswiththePorscheinsect
remover.
Wiperblades
Wiperbladesthatareinperfektconditionare
vitalforaclearview.
I>Replacethewiperbladestwiceperyear(be-
foreandafterthecoldseason)orwhenever
wiperperformancedeteriorates.
I>Periodicallycleanthewiperbladeswith
Porschewindowcleaner,especiallyafterthe
vehiclehasbeenwashedinacarwash.
Iftheyareverydirty(e.g.withinsectre-
mains),theycanbecleanedwithaspongeor
cloth.
Undercoating
Theundersideofyourcarisdurablyprotected
againstchemicalandmechanicalinfluences.
Asitisnotpossibletoexcludetheriskofdam-
agetothisprotectivecoatingindaytodaydriv-
ing,itisadvisabletohavetheundersideofthe
carinspectedatcertainintervals-preferablybe-
forethestartofwinterandagaininspring-and
theundercoatingrestoredasnecessary.
YourauthorizedPorschedealerisfamiliarwith
thebodysealtreatmentproceduresandhasthe
necessaryequipmentforapplyingfactoryap-
provedmaterials.Werecommendthatyouen-
trustthemwithsuchworkandinspections.
Unlikeconventionalsprayoils,undercoatingand
rust-proofingcompoundsbasedonbitumenor
waxdonotattackthesound-proofingmaterials
appliedatthefactory.
I>I>I>
Maintenance,CarCare
189

PracticalTips,EmergencyService
Cautions196
Tires,wheels197-204
Jack,tools204
Liftingthevehicle205
Sparewheel206,207
Spacerrings,wheelbolts207,208
Changingwheels209-211
Electricalsystem,fuses,relays212-214
Battery215-219
Emergencystarting
withjumpercables220,221
Lights,replacingbulbs222-235
Adjustingheadlights236,237
Towing238,239
PracticalTips,EmergencyService
195

ExerciseExtremeCautionwhen
WorkingonyourVehicle

/!\Warning!
Ignoring
the
followinginstructionsmay
causeseriouspersonalinjury.

[>
Theenginecompartmentofanymotorvehicle
isapotentiallyhazardousarea.Ifyouarenot
fullyfamiliarwithproperrepairprocedures,do
notattempttheadjustmentsdescribedonthe
followingpages.
Thiscautionappliestotheentirevehicle.
[>Onlyworkonyourvehicleoutdoorsorina
wellventilatedarea.
[>Ensurethattherearenoopenflamesinthe
areaofyourvehicleatanytimewhenfuel
fumesmightbepresent.Beespeciallycau-
tiousofsuchdevicessuchashotwater
heaterswhichigniteaflameintermittently.
[>Beforeworkingonanypartintheenginecom-
partment,turntheengineoffandletitcool
downsufficiently.Hotenginecompartment
componentscanburnskinoncontact.
[>Bealertandcautiousaroundengineatall
timeswhiletheengineisrunning.
Ifworkhastobeperformedwiththeengine
running,alwayssettheparkingbrake,and
makesuretheshiftleverisinneutralorthe
selectorleverisinposition"P"or"N".
196PracticalTips,EmergencyService
[>
Inparticular,beverycarefultoensurethat
itemsofclothing(ties,shirt,sleevesetc.),
jewelry,longhair,handorfingerscannotget
caughtintheengine-compartmentblower,
fan,beltsorothermovingparts.
Theradiatorandradiatorfansareinthefront
ofthecar.
Thefanscanstartorcontinuerunningasa
functionoftemperature,evenwiththeengine
switchedoff.
Carryoutworkintheseareasonlywiththe
engineoffandexerciseextremecaution.
[>
YourPorscheisequippedwithanelectronic
ignitionsystem.Whentheignitionison,high
voltageispresentinallwiresconnectedwith
theignitionsystem;therefore,exerciseex-
tremecautionwhenworkingonanypartof
theenginewhiletheignitionisonortheen-
gineisrunning.
[>Alwayssupportyourcarwithsafetystandsif
itisnecessarytoworkunderthecar.The
jacksuppliedwiththecarisnotadequatefor
thispurpose.
[>Whenworkingunderthecarwithoutsafety
standsbutwiththewheelsontheground,
makesurethecarisonlevelground,the
wheelsareblocked,andthattheenginecan-
notbestarted.
Removetheignitionkey.
[>
Donotsmokeorallowanopenflamearound
thebatteryorfuel.
Keepafireextinguisherinclosereach.
[>Incompleteorimproperservicingmaycause
problemsintheoperationofthecar.Ifin
doubtaboutanyservicing,haveitdoneby
yourauthorizedPorschedealer.
Impropermaintenanceduringthewarranty
periodmayaffectyourPorschewarranty
coverage.
[>Suppliesoffluids,e.g.engineoil,brakefluid
orcoolant,arehazardoustoyourhealth.
Keepthesefluidsoutofchildren'sreachand
disposeoftheminaccordancewiththeap-
propriateregulations.
[>Somecountriesrequireadditionaltoolsand
specialsparepartstobecarried.
Pleasemakeenquiriesbeforedrivingabroad.

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.

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

A.Warning!
Hydrogengasgeneratedbythebattery
couldcauseanexplosion,resultingin
severepersonalinjuries.

I>Chargebatteryinawellventilatedarea.
I>Neverchargeafrozenbattery.Itmayexplode
becauseofgastrappedintheice.Allowa
frozenbatterytothawoutfirst.
I>Ifyougetelectrolyte,whichisanacid,inyour
eyesoronyourskin,immediatelyrinsewith
coldwaterforseveralminutesandcalladoc-
tor.
Slow
battery
charging
1.Payattentiontoallwarningsandfollowin-
structionsthatcomewithyourbattery
charger.
2.Whencharging,ensureadequateventilation.
3.Removebattery(see"Removingbattery").
4.Allventcapsshouldbeopen.
Thefluidlevelshouldmeettheindicatormark
ineachcell.
5.Ensurethatchargerisswitchedoff-danger
ofshortcircuit!
6.Connectchargercables.

Chargercablesmustbeconnected
POSITIVE1+)toPOSITIVE1+)and
NEGATIVE(-)toNEGATIVE
I-).
7.Switchoncharger.
Normally,abatteryshouldbechargedatno
morethan10percentofitsratedcapacity.
Ratedcapacityofthebatteryinyourvehicle
islistedonthebatteryhousing.
8.Aftercharging,turnoffchargeranddiscon-
nectchargercables.
9.Tightentheventcapsandreinstallbattery
(see"Installingbattery").

Winteroperation

Duringthewintermonths,batterycapacitytends
todecreaseastemperaturesdrop.
Additionally,morepowerisconsumedwhile
starting,andtheheadlights,heater,rearwindow
defogger,etc.,areusedmorefrequently.
I>LetyourPorschedealertestthebattery'sca-
pacitybeforewintersetsin.

Replacingbattery

Theservicelifeofthebatteryissubjecttonor-
malwear;itdependsgraetlyoncare,climatic
conditions,anddrivingconditions(distances,
loads).
I>OnlyuseanoriginalPorschebattery,withthe
correctpartnumber,asareplacement.
I>Pleaseobservethedisposalinstructionsfor
batteries.
I>I>I>
PracticalTips,EmergencyService
217