engine PORSCHE 911 CARRERA 2003 4.G Owners Manual

DearOwner,
Wewouldliketothankyouforyourpurchaseof
aPorscheSportscar.
Judgingbythecaryouhavechosen,youarea
motoristofaspecialbreed,andyouareprob-
ablynonovicewhenitcomestoautomobiles.
Rememberhowever,aswithanyvehicle,you
shouldtaketimetofamiliarizeyourselfwithyour
Porscheanditsperformancecharacteristics.Al-
waysdrivewithinyourownuniquecapabilitiesas
adriverandyourlevelofexperiencewithyour
Porsche.Ensurethatanyoneelsedrivingyour
Porschedoesthesame.Topreventorminimize
injury,alwaysuseyoursafetybelts.Nevercon-
sumealcoholordrugsbeforeorduringthe
operationofyourvehicle.
ThisOwner'sManualcontainsahostofuseful
information.Pleasetakethetimetoreadthis
manualbeforeyoudriveyournewPorsche.
Becomefamiliarwiththeoperationofyour
Porschecarformaximumsafetyandoperating
pleasure.ThebetteryouknowyourPorsche,the
morepleasureyouwillexperiencedrivingyour
newcar.
AlwayskeepyourOwner'sManualinthecar,
andgiveittothenewownerifyoueversell
yourPorsche.

2
AseparateMaintenanceBooklet
explains
howyoucankeepyourPorscheintopdriving
conditionbyhavingitservicedregularly.

AseparateWarrantyandCustomerInfor-
mationBooklet
containsdetailedinformation
aboutthewarrantiescoveringyourPorsche.
ForU.S.only:
Ifyoubelievethatyourvehiclehasafaultwhich
couldcauseacrash,injuryordeath,youshould
immediatelyinformtheNationalHighwayTraffic
SafetyAdministration(NHTSA)inadditionto
notifyingPorscheCarsNorthAmerica,Inc.
(PorscheCarsN.A.J.
IfNHTSAreceivessimilarcomplaints,itmay
openaninvestigation,andifitfindsthatasafety
problemexistsinagroupofvehicles,itmay
orderarecallandremedycampaign.However,
NHTSAcannotbecomeinvolvedinindividual
problemsbetweenyouandyourdealer,or
PorscheCarsN.A..
TocontactNHTSA,youmayeithercalltheAuto
SafetyHotlinetolHreeat1~800)-424-9393
(or366-0123inWashington,D.C.area)orwrite
to:NHTSA,U.S.DepartmentofTransportation,
Washington,D.C.20590.Youcanalsoobtain
otherinformationaboutmotorvehiclesafety
fromtheHotline.
Yourcarhasthousandsofpartsandcompo-
nentswhichhavebeendesignedandmanufac-
turedinaccordancewithPorsche'shighstand-
ardsofengineeringqualityandsafety.
Anyalterationofthevehiclemaynegateor
interferewith
thosesafetyfeaturesbuilt
into
thevehicle.
YourPorscheisintendedtobeusedinasafe
mannerobeyingthelocallawsandinthelightof
drivingconditionsfacedbyyou,andinaccord-
ancewiththeinstructionsprovidedinthis
Owner'sManual.

DonotmisuseyourPorschebyignoring
thoselawsanddrivingconditions,orby
ignoringtheinstructionsinthismanual.
Anyalterationormisuseofthevehiclecan
leadtoaccidentsandsevereorfatalper-
sonalinjuries.

Thefittingofracingtires(e.g.slicks)forsport-
ingeventsisnotapprovedbyPorsche.Very
highcorneringspeedscanbeachievedwith
racingtires.However,theresultingtransverse
accelerationvalueswouldjeopardizetheadequ-
atesupplyofoiltotheengine.
Porschethereforewillnotacceptanywarranty
oracceptanyliabilityfordamageoccurringasa
resultofnon-compliancewiththisprovision.

Regularlycheck
yourvehicleforsignsof
damage.
Damagedormissingaerodynamiccompo-
nentssuchasspoilersorundersidepanels
affectthedrivingbehaviorandtherefore
mustbereplacedimmediately.
Yourcarmayhaveallorsomeofthecompo-
nentsdescribedinthismanual.
Shouldyouhavedifficultyunderstandinganyof
theexplanationsoffeaturesorequipment
installedinyourvehicle,contactyourauthorized
Porschedealer.He/Shewillbegladtoassist
you.Alsocheckwithyourdealeronotheravail-
ableoptionsorequipment.
Throughoutthisbooklet,leftisdesignatedas
thedriver'ssideofthevehicle,andrightasthe
passenger'ssideofthevehicle.
Text,illustrationsandspecificationsinthisma-
nualarebasedontheinformationavailableat
thetimeofprinting.
IthasalwaysbeenPorsche'spolicytocontinu-
ouslyimproveitsproducts.Porsche,therefore,
reservestherighttomakechangesindesign
andspecification,andtomakeadditionsor
improvementsinitsproductwithoutincurring
anyobligationtoinstallthemonproducts
previouslymanufactured.
Wewishyoumanymilesofsafeandpleasurable
drivinginyourPorsche.
Important
Foryourownprotectionandlongerservicelife
ofyourcar,pleaseheedalloperating
instructionsandspecialwarnings.Thesespecial
warningsusethesafetyalertsymbol,followed
bythewordsDanger,WarningandCaution.
Thesespecialwarningscontainimportantmes-
sagesregardingyoursafetyand/orthepotential
fordamagetoyourPorsche.Ignoringthem
couldresultinseriousmechanicalfailureoreven
physicalinjury.
DonotalteryourPorsche.Anyalterationcould
createdangerousconditionsordefeatsafety
engineeringfeaturesbuiltintoyourcar.
DonotmisuseyourPorsche.Useitsafely,and
consistentlywiththelaw,accordingtothedriv-
ingconditions,andtheinstructionsinthisma-
nual.
AlterationormisuseofyourPorschecould
causeaccidentsandsevereorfatalpersonal
injuries.
Notetoowners
InCanada,thismanualisalsoavailablein
French.Toobtainacopycontactyourdealeror
writeto:
Noteauxproprietaires
AuCanadaonpeutseprocurerunexemplaire
deceManuelenfranc;aisaupresduconcessio-
naireoudu:
PorscheCarsCanada,Ltd.
AutomobilesPorscheCanada,LTEE

5045
OrbitorDrive
Building#11,Suite302
Mississauga,Ontario
CanadaL4W4Y4
Telephonenumberforcustomerassistance:
1-800-PORSCHE/Option
3
3

FuelQuality
Yourengineisdesignedtoprovideoptimumperformanceandfueleconomyusing
unleadedpremiumfuelwithanoctaneratingof98RON(93CLCorAKI).
Porschethereforerecommendstheuseofthesefuelsinyourvehicle.
Porschealsorecognizesthatthesefuelsmaynotalwaysbeavailable.Beassuredthatyourvehiclewilloperate
properlyonunleadedpremiumfuelswithoctanenumbersofatleast95RON(90CLCorAKI).
sincetheengine's"ElectronicOktaneTMknockcontrol"willadapttheignitiontiming,ifnecessary.
Fuels
containing
alcohol
and
ether
SomeareasoftheU.S.requireoxygenatedfuelsduringcertainportionsoftheyear.
Oxygenatedfuelsarefuelswhichcontainalcohols(suchasmethanolorethanol)orether(suchasMTBE).
Undernormalconditions,theamountofthesecompoundsinthefuelwillnotaffectdriveability.
YoumayuseoxygenatedfuelsinyourPorsche,providedtheoctanerequirementsforyourvehiclearemet.
Werecommend,however,tochangetoadifferentfuelorstationifanyofthefollowingproblemsoccurwithyourvehicle:
-Deteriorationofdriveabilityandperformance.
-Substantiallyreducedfueleconomy.
-Vaporlockandnon-startproblems,especiallyathighaltitudeorathightemperature.
-Enginemalfunctionorstalling.
Fuels
containing
MMT
SomeNorthAmericanfuelscontainanoctaneenhancingadditivecalledmethylcyclopentadienylmanganesetricarbonyl(MMT).
Ifsuchfuelsareused,youremissioncontrolsystemperformancemaybenegativelyaffected.
Thecheckenginewarninglightsonyourinstrumentpanelmayturnon.
Ifthisoccurs,PorscherecommendsyoustopusingfuelscontainingMMT.
4

PorscheandtheEnvironment
Environmentalguidelines
Wedevelopandproduceexclusivesportscars
withadvancedenvironmentalandsafetytechnol-
ogyandagreatabilitytofascinate.
Ourenvironmentalpolicyisbasedonthe
followingprinciples:
-Themaximumpossibleuseofenvironmental
andsafetytechnologythatiseconomically
justifiable.
-Economicalusageofenergyand
resources.
-Involvementofourbusinesspartnersandcon-
tractorsinoureffortstoprotecttheenviron-
ment.
-Opendialoguewithallsocialgroups.
6
CaliforniaProposition65Warning.
/!\.Warning!
Engineexhaust,someofitsconstituents,and
certainvehiclecomponentscontainoremit
chemicalsknowntotheStateofCaliforniato
causecancerandbirthdefectsorotherrepro-
ductiveharm.
Inaddition,certainfluidscontainedinvehicles
andcertainproductsofcomponentwearcontain
oremitchemicalsknowntotheStateofCalifor-
niatocausecancerandbirthdefectsorother
reproductiveharm.
Production
ThemanufactureofPorschevehiclesinafac-
toryadjacenttoaresidentialarearequiresmore
thanmerecompliancewithalllawsandregula-
tions.
Whetherinproductionorrepair,Porschealways
reliesonenvironmentallyfriendlytechnology.
Anexampleofthisisthewater-basedpaintused
inourpaintinginstallation.
Water-basepaintsandnewpaintingmethodsre-
ducesolventemissionsby70percent.
Andthewaterusedinthepaintinginstallationis
re-circulated.WastewaterleavesthePorsche
factoryonlyafterbeingappropriatelytreated.
Awaste-managementsystemhasbeenintro-
ducedtoreducetheamountofwastewhilesim-
ultaneouslyincreasingtherecyclingrate.

Environmentallyfriendlyvehicles
Modernenvironmentaltechnologyensurescom-
pliancewithallemissionlawsapplicableworld-
wide.
Thesehavethefollowingadvantages:
-Rapidoperationalreadinessofthecatalytic
convertersensureslowemissions,evenin
short-tripoperation.
-Reliableoperationandgoodemissioncontrol
overalongusefullife.

Pleasenotethechapter"Fueleconomy",

Recycling-foraPorsche,thisis
virtuallyanacademicquestion
Morethantwo-thirdsofallPorscheseverbuilt
arestillrunning.

Justincaserecyclingisevernecessary,
wetakethefollowingprecautionary
measures:

-Identificationofallmaterials.
-Useofrecyclablematerials.
-Reusablecomponentsdesignedforsimple
removal.
-Thesereasonsresultinafurtherincreasein
therecyclingratewhichiscurrently80per
cent.
Emissioncontrolisbuiltin
Innovativeenginetechnologycombineshighen-
gineperformanceandenvironmentalcompati-
bility.
Theenginediagnosissystemelectronicallymoni-
torsthecomponentsandsystemsthataffectex-
haustgases.
Thiscontinuousmonitoringandfaultstorageen-
ablesswift,reliablediagnosisandfaultdetec-
tion.
Anyfaultmessagesareindicatedtothedriver
bythe"CheckEngine"warninglightandtheon-
boardcomputer.

7

Setting
andoperatingvehicle
componentswhendriving

/!\Warning!
Thereisadangerofaccidentifyousetor
operatetheon-boardcomputer,radio,na-
vigationsystem,telephone,convertibletop
orotherequipmentwhendriving.
Thiscoulddistractyoufromthetrafficand
causeyoutolosecontrolofthevehicle.

[>Operatethecomponentswhiledrivingonlyif
thetrafficsituationallowsyoutodososafely.
[>Carryoutanycomplicatedoperatingor
settingproceduresonlywiththevehiclesta-
tionary.
8
PortableFuelContainers

/!\Danger!
Portablefuelcontainers,fullorpartially
empty,mayleak,causinganexplosion,or
resultinfireincaseofanaccident.

[>
Nevercarryadditionalfuelinportablecon-
tainersinyourvehicle.
EngineExhaust

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

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

Beforedrivingoff12,13
Breakinhints14
Keys,theftprotection.16-19
Immobilizer,securitywheelbolts17
Doors,doorwindows20
Centrallocking21-23
Alarmsystem,infraredpassenger
compartmentmonitoring24,25
Powerwindows26,27
Mirrors,insideanddoor28,29
Rearwindowdefogger30
Sunvisors31
Seats32-37
Steeringwheeladjustment37
Safetybelts38-40
Childrestraintsystems41-43
Airbagsystem44,45
Rolloverprotectionsystem46,47
Parkingaids48,49
Retractablerearspoiler50,51
Fixedrearspoiler,frontspoiler,
sidememberparts51
Clutch,parkingbrake,brakes52-55
ABSbrakesystem56,57
PSMPorschestabilitymanagement58,59
Four-wheeldrive60,61
Dashboard,controlsandinstruments...62-109
Controls,Instruments
Ignition/starterswitch64,65
Startingandstoppingtheengine66,67
Instrumentpanel68-97
On-boardcomputer82-97
Emergencyflasherswitch99
Lightswitch,
automaticheadlightbeamadjustment100
Turnsignals/
headlightdimmer/flasherlever101
Windshieldwiper/washerlever,
rainsensor102,103
Automaticspeedcontrol104,105
Automaticairconditioner106-108
Centralandsidevents109
Ashtray11
°
Cigarettelighter,rearwiper111
Interiorlights112-114
Cupholder115
Storageinthepassengercompartment,
CDorcassetteholder116,117
Frontandrearlids118,119
Luggagecompartment120,121
Trunkentrapment122,123
Sportsexhaustsystem123
PCMPorschecommunicationmanagement.123
Caraudiooperation,tips124,125
Cartelephoneandaftermarkedalarms126
Controls,Instruments
11

DearPorscheOwner
Alothasgoneintothemanufactureofyour
Porsche,includingadvancedengineering,rigid
qualitycontrolanddemandinginspections.
Theseengineeringandsafetyfeatureswillbe
enhancedbyyou...
thesafedriver...
whoknowshiscarandallcontrols,
whomaintainsthevehicleproperly,
whousesdrivingskillswiselyandalwaysdrives
withinher/hisowncapabilitiesandthelevelof
familiaritywiththevehicle.
Youwillfindhelpfulhintsinthismanualonhow
toperformmostofthecheckslistedonthe
followingpages.
Ifindoubt,havethesechecksperformedby
yourauthorizedPorschedealer.
12Controls,Instruments
Beforedrivingoff...
Check
thefollowingitemsfirst

I>Turntheengineoffbeforeyouattemptany
checksorrepairsonthevehicle.
I>Besurethetiresareinflatedcorrectly.
Checktiresfordamageandtirewear.
I>Seethatwheelboltsareproperlytightened
andnotlooseormissing.
I>Checkengineoillevel,addifnecessary.
Makeitahabittohaveengineoilchecked
witheveryfuelfilling.
I>Checkallfluidlevelssuchaswindshield
washerandbrakefluidlevels.
I>Besurethevehiclebatteryiswellcharged
andcrankstheengineproperly.
I>Checkalldoorsandlidsforproperoperation
andlatchthemproperly.
I>Checkandifnecessaryreplacewornor
crackedwiperblades.
I>Seethatallwindowsareclearandunob-
structed.
I>Checkairintakeslotsandareabetweenlug-
gagecompartmentlidandwindshieldarefree
ofsnowandice,sotheheaterandthewind-
shieldwipersworkproperly.
I>Ifachildwillberidinginthevehicle,check
childseaVchildseatrestraintsystemtoen-
surethatrestraintsareproperlyadjusted.
I>Checkallexteriorandinteriorlightsforoper-
ationandthatthelensesareclean.
I>Checktheheadlightsforproperaim,andif
necessary,havethemadjusted.
I>Checkunderthevehicleforleaks.
I>Besureallluggageisstowedsecurely.
Emergencyequipment
Itisgoodpracticetocarryemergencyequip-
mentinyourvehicle.
Someoftheitemsyoushouldhaveare:
windowscraper,snowbrush,containerorbag
ofsandorsalt,emergencylight,smallshovel,
first-aid
kit,etc.

Inthedriver'sseat...
I>Checkoperationofthehorn.
I>Positionseatforeasyreachoffootpedals
andcontrols.
Toreducethepossibilityofinjuryfromtheair-
bagdeployment,youshouldalwayssitback
asfarfromthesteeringwheelasispractical,
whilestillmaintainingfullvehiclecontrol.
I>Adjusttheinsideandoutsiderearviewmir-
rors.
I>Buckleyoursafetybelts.
I>Checkoperationofthefootandparking
brake.
I>Checkallwarningandindicatorlightswith
ignitiononandenginenotrunning.
I>Startengineandcheckallwarningdisplays
forwarningsymbols.
I>Neverleaveanidlingcarunattended.
I>Lockdoorsfrominside,especiallywithchild-
reninthecartopreventinadvertentopening
ofdoorsfrominsideoroutside.
Drivewithdoorslocked.
Ontheroad...
I>Neverdriveafteryouhaveconsumedalcohol
ordrugs.
I>Alwayshaveyoursafetybeltfastened.
I>Alwaysdrivedefensively.
Expecttheunexpected.
I>Usesignalstoindicateturnsandlane
changes.
I>Turnonheadlightsatduskorwhenthedriv-
ingconditionswarrantit.
I>Alwayskeepasafedistancefromthevehicle
infrontofyou,dependingontraffic,roadand
weatherconditions.
I>Reducespeedatnightandduringinclement
weather.
Drivinginwetweatherrequirescautionand
reducedspeeds,particularlyonroadswith
standingwater,asthehandlingcharac-
teristicsofthevehiclemaybeimpaireddue
tohydroplaningofthetires.
I>Alwaysobservespeedlimitsandobeyroad
signsandtrafficlaws.
I>Whentired,getwellofftheroad,stopand
takearest.Turntheengineoff.Donotsitin
thevehiclewithengineidling.
Seewarningson"EngineExhaust".
I>Whenparked,alwayssettheparkingbrake.
MovetheTiptronicselectorleverto"P"orthe
gearshiftlevertoreverseorfirstgear.
Onhillsalsoturnthefrontwheelstowardthe
curb.
I>Whenemergencyrepairsbecomenecessary,
movethevehiclewellofftheroad.Turnon
theemergencyflasheranduseotherwarning
devicestoalertothermotorists.Donotpark
oroperatethevehicleinareaswherethehot
exhaustsystemmaycomeincontactwithdry
grass,brush,fuelspillorotherflammablema-
terial.
I>Makeitahabittohavetheengineoilchecked
witheveryfuelfilling.
Controls,Instruments
13

Breakinhintsforthefirst

2,000
miles/3,000kilometers
Thefollowingtipswillbehelpfulinobtainingopti-
mumperformancefromyournewPorsche.
Despitethemostmodern,high-precisionmanu-
facturingmethods,itcannotbecompletely
avoidedthatthemovingpartshavetowearin
witheachother.Thiswearing-inoccursmainlyin
thefirst2,000miles/3,000km.
Therefore:
t>Preferablytakelongertrips.
t>Avoidfrequentcoldstartswithshort-distance
drivingwheneverpossible.
t>Avoidfullthrottlestartsandabruptstops.
t>Donotexceedmaximumenginespeedof
4,200rpm(revolutionsperminute).
t>Donotrunacoldengineathighrpmeitherin
Neutraloringear.
t>Donotlettheenginelabor,especiallywhen
drivinguphill.Shifttothenextlowergearin
time(usethemostfavorablerpmrange).
t>Neverlugtheengineinhighgearatlow
speeds.Thisruleappliesatalltimes,notjust
duringthebreak-inperiod.
14Controls,Instruments
t>Donotparticipateinmotorracingevents,
sportsdrivingschools,etc.duringthefirst
2,000miles/3,000kilometers.
Theremaybeaslightstiffnessinthesteering,
gear-shiftingorothercontrolsduringthebreak-in
periodwhichwillgraduallydisappear.
Breakinbrakepads
Newbrakepadsanddiscshavetobe"broken
in",andthereforeonlyattainoptimalfriction
whenthecarhascoveredseveralhundredmiles
orkm.
Theslightlyreducedbrakingabilitymustbe
compensatedforbypressingthebrakepedal
harder.Thisalsoapplieswheneverthebrake
padsandbrakediscsarereplaced.
Newtires
Newtiresdonothavemaximumtraction.They
tendtobeslippery.
t>Breakinnewtiresbydrivingatmoderate
speedsduringthefirst60to120miles/lOO
to200km.Longerbrakingdistancesmustbe
anticipated.
Engineoilconsumption
Duringthebreak-inperiodoilconsumptionmay
behigherthannormal.
Asalways,therateofoilconsumptiondepends
onthequalityandviscosityofoil,thespeedat
whichtheengineisoperated,theclimateand
roadconditions,aswellastheamountofdilu-
tionandoxidationofthelubricant.
t>Makeahabitofcheckingengineoilwithevery
fuelfilling,addifnecessary.