
Slipmonitoring
Whenthespeedsofrotationofthefrontand
rearaxlesdifferbymorethanthemaximumper-
missiblevalue,integratedslipmonitoringshifts
uptothenextgear.
Thisincreasesdrivingstabilityonaslipperysur-
face.
Note
Slipmonitoringisalsodeactivatedwhen
PorscheStabilityManagement(PSM)isswitched
off.
Stopping
[>
Forabriefstop,e.g.atatrafficlight,leave
theselectorleverindrivepositionandhold
thevehiclewiththebrakepedal.
[>Foralongerstopwiththeenginerunning,
selectpositionN(neutral).
[>
Donotholdthecaronaslopeusingthe
accelerator.Usethebrakepedalorthehand-
brakeinstead.
[>Beforeleavingthevehicle,alwaysapplythe
handbrakeandmovetheselectorleverto
positionP.
134ShiftingGear
Parking
[>
Goeasyontheaccelerator.
[>
Whenparkingormanoeuveringinasmall
space,controlthespeedbycarefuluseof
thefootbrake.
Drivinginwinter
Inwinteryroadconditionsitisadvisabletotake
steepinclinesinmanualmode.Thispreventsthe
occurrenceofgearchangesthatcouldcause
wheelspin.
Tow-starting,towing
Refertothechapter"Towing".
Emergencyprogram
Atransmissionfaultisindicatedbythefollowing
symptoms:
-4th
gear
flashesonthedisplayoftheinstru-
mentcluster.
-Thewarning"Tiptronicemergencyrun"
appearsintheon-boardcomputer.
-Thetransmissionnolongershifts.
A.Warning!
Reverse
gear
lockmonitoringisdisabledin
theemergencyrunningprogram.
Damagetothevehiclemayresultaswell
aslossofcontrol,ifthevehicleismoving
forwardfastenoughtocauserearwheel
lockup.
[>
DonotshiftintoRwhilethevehicleismoving
forward.
Proceedasfollowsintheeventofatrans-
missionfault:
1.Stopinasafeplace.
2.MoveselectorlevertopositionP,switchthe
ignitionoffandwaitfor10seconds.
3.Starttheengine.
2ndgearinselectorpositionDandreverse
gearRarenowavailableandwillallowyouto
reachthenearestauthorizedPorschedealer.
4.Toremedythefault,pleaseconsultanauth-
orizedPorschedealerimmediately.

B-Closingthelifting/slidingroof
I>Pressfrontofrockerswitchuntillifting/slid-
ingroofreachesthedesiredposition.
One-touchoperation
I>Touchfrontofrockerswitch-lifting/sliding
roofclosesfullytoitsendposition.
Stopitinanypositionbytouchinganybutton.
Closingthelifting/slidingroofautomat-
icallywhenthevehicleislocked
I>Holdthecarkeyinthedoorlockinlocking
positionuntilthelifting/slidingroofreaches
thedesiredposition.
C-Liftingthelifting/slidingroof
I>Presscenterofrockerswitchuntillift-
ing/slidingroofreachesthedesiredposition.
One-touchoperation
I>Touchcenterofrockerswitch-lifting/sliding
roofopensfullytoitsendposition.
Stopitinanypositionbytouchinganybutton.
B-Loweringthelifting/slidingroof
I>Pressfrontofrockerswitchuntillifting/slid-
ingroofreachesthedesiredposition.
Thestandbyfunctionoftheroofdrive
switchesoffaftertwohours
Ifthevehicleisunlocked,thelifting/slidingroof
cannolongerbeoperatedaftertwohours
(preventionofbatterydischarging).
Thepowersupplyisswitchedbackonwhenthe
ignitionisswitchedonortheenginestarted.
I>I>I>
MobileRoofs
137

~Closingconvertibletop
A
Warning!
Risk
ofinjuryanddamagewhenoperating
theconvertibletop.
[>
Makeabsolutelysurethatnobodycanbein-
juredbytheconvertible-topmechanismorthe
convertible-topcompartmentlid.
[>Inordertoabortconvertibletopoperationin
theeventofdanger,immediatelyreleasethe
switchorvehiclekey.
142MobileRoofs
[>
Keepthelidsofthemake-upmirrorsinthe
sunvisorsclosedwhenclosingtheconvert-
ibletop.
With
therockerswitch:
[>
Pressrightrocker-switchhalfwithoutinterrup-
tionuntiltheconvertibletophasreachedits
finalpositionoruntilthewindowsareinthe
desiredposition.
With
thevehiclekey:
[>
Holdthevehiclekeyinthelockingpositionin
thedoorlockuntiltheconvertibletophas
reacheditsfinalposition.
[>
Unlockthevehicle.
Closethewindowswiththerockerswitches
inthecenterconsole.
Re-Iockthevehicleifnecessary.
Iftheconvertibletopdoesnotlockinthe
windshieldframe
[>
Openconvertibletopagain,starttheengine
andclosetheconvertibletopagainusingthe
rockerswitch.
Assistwiththeclosingprocessbygrasping
theconvertibletopatthehandholdandpulling
ittowardthewindshieldframe(arrow).

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".
168Maintenance,CarCare
[>
Inparticular,beverycarefultoensurethat
itemsofclothing(ties,shirt,sleevesetc.),
jewelry,longhair,handorfingerscannotget
caughtintheengine-compartmentblower,
fan,beltsorothermovingparts.
Theradiatorandradiatorfansareinthefront
ofthecar.
Theengine-compartmentblowerismounted
ontheenginecompartmentlid.
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.
Powermeasurements
Powermeasurementsondynamometersarenot
approvedbyPorsche.

Engine-compartment
blower,
radiatorfan
Theradiatorandradiatorfansareinthefrontof
thecar.
Theengine-compartmentblowerismountedon
theenginecompartmentlid.
/?\.Warning!
Riskofinjury.
Aftertheengineisswitchedoff,theengine-
compartmentandcoolanttemperaturesare
monitoredforapprox.20minutes.
Duringthisperiod,anddependingontem-
perature,theengine-compartmentblower
andradiatorfansmaycontinuetorunor
starttorun.
I>Carryoutworkintheseareasonlywiththe
engineoffandexerciseextremecaution.
170Maintenance,CarCare
EngineOil
Engineoilconsumption
Itisnormalforyourenginetoconsumeoil.
Therateofoilconsumptiondependsonthe
qualityandviscosityofoil,thespeedatwhich
theengineisoperated,theclimate,roadcondi-
tionsaswellastheamountofdilutionandoxida-
tionofthelubricant.
Ifthevehicleisusedforrepeatedshorttrips,
andconsumesanormalamountofoil,theen-
gineoilmeasurementmaynotshowanydropin
theoillevelatall,evenafter600miles(1000
km)ormore.Thisisbecausetheoilisgradually
becomingdilutedwithfuelormoisture,makingit
appearthattheoillevelhasnotchanged.
Thedilutingingredientsevaporateoutwhenthe
vehicleisdrivenathighspeeds,asonanex-
pressway,makingitthenappearthatoilisex-
cessivelyconsumedafterdrivingathighspeeds.
Iftheconditionsyoudriveyourvehicleinare
dusty,humid,orhot,thefrequencyoftheoil
changeintervalsshouldbegreater.
Ifthevehicleisdrivenatahighrateofspeed,
climaticconditionsarewarm,andtheloadis
high,theoilshouldbecheckedmorefrequently,
asdrivingconditionswilldeterminetherateof
oilconsumption.
-Theengineinyourvehicledependsonoilto
lubricateandcoolallofitsmovingparts.
Therefore,theengineoilshouldbechecked
regularlyandkeptattherequiredlevel.
-Makeitahabittohavetheengineoillevel
checkedwitheveryfuelfilling.
-Theoilpressurewarninglightisnotanoil
levelindicator.
Theoilpressurewarninglightindicates
seriousenginedamagemaybeoccuring
whenlit,ifenginerpmisaboveidlespeed.

FuelEconomy
Fueleconomywillvarydependingon
where,whenandhowyoudrive,optional
equipmentinstalled,andthegeneralcondi-
tionofyourcar.
Acartunedtospecificationsandcorrectly
maintained,willhelpyoutoachieveoptimal
fueleconomy.
I>Haveyourvehicletunedtospecifications.
Aircleanershouldbedirtfreetoallowproper
engine"breathing".
Batteryshouldbefullycharged.
Wheelsshouldbeproperlyaligned.
Tiresshouldbeinflatedatcorrectpressure.
I>Alwaysmonitoryourfuelconsumption.
I>Drivesmoothly,avoidabruptchangesin
speedasmuchaspossible.
I>Avoidjackrabbitstartsandsuddenstops.
I>Donotdrivelongerthannecessaryinthe
lowergears.Shiftingintoahighergearearly
withoutluggingtheenginewillhelpsavefuel.
I>Prolonged"warmup"idlingwastesgas.Start
thevehiclejustbeforeyouarereadytodrive.
Accelerateslowlyandsmoothly.
I>Switchofftheengineifstationaryforlonger
periods.
I>Anyadditionalweightcarriedinthevehiclere-
ducesfueleconomy.Alwayskeepcargotoa
minimumandremoveallunnecessaryitems.
I>Organizeyourtripstotakeinseveralerrands
inonetrip.
I>Allelectricalaccessoriescontributetoin-
creasedfuelconsumption.
I>Onlyswitchontheairconditioningwhen
necessary.
I>DonotdrivewiththeRoofTransportSystem
mountedunlessyouneedit.
TheEPAestimatedm.p.g.istobeusedfor
comparisonpurposes,actualmileagemay
bedifferentfromtheestimatedm.p.g.,de-
pendingonyourdrivingspeed,weather
conditionsandtriplength.Youractual
highwaymileagewillprobablybelessthan
theestimatedm.p.g.
I>Pleaseobservealllocalandnationalspeed
limits.
OperatingYourPorscheinother
Countries
GovernmentregulationsintheUnitedStatesand
Canadarequirethatautomobilesmeetspecific
emissionregulationsandsafetystandards.
Therefore,carsbuiltfortheU.S.andCanada
differfromvehiclessoldinothercountries.
IfyouplantotakeyourPorscheoutsidethecon-
tinentallimitsoftheUnitedStatesorCanada,
thereisthepossibilitythat
-unleadedfuelmaynotbeavailable;
-unleadedfuelmayhaveaconsiderablylower
octanerating.Excessiveengineknockand
seriousdamagetobothengineandcatalytic
converterscouldresult;
-servicemaybeinadequateduetolackof
properservicefacilities,toolsordiagnostic
equipment;
-replacementpartsmaynotbeavailableor
verydifficulttoget.
Porsche
cannot
beresponsibleforthe
mechanicaldamagethatcouldresultbe-
causeofinadequatefuel,serviceorparts
availability.
IfyoupurchasedyourPorscheabroadandwant
tobringitbackhome,besuretofindoutabout
shippingandforwardingrequirements,aswell
ascurrentimportandcustomsregulations.
Maintenance,CarCare
175

Refuelling
Fueltankcapacityislistedunder"Capacities".
Porschedoesnotrecommendtheuseoffuel
additives.
1.Important:Stoptheengineandswitchoff
theignition.
2.Slowlyunscrewthetankcap.
Hangthetankcapontheplasticstrapofthe
fillerflap.
3.Insertfuel-hosenozzlefullyintothefillerneck
withthehandleofthefuel-hosenozzlefacing
down.
4.Donotaddfurtherfueloncethecorrectly
operatedautomaticfuel-hosenozzlehas
switchedoff.
Fuelcouldsprayorcouldrunoverinwarm
temperatures.
5.Replacethetankcapimmediatelyafter
refuellingandturnituntilyouhearitandfeel
itengage.
Ifyoulosethetankcap,youmustreplace
itonlywithanoriginalparttoreducethe
possibilityofafireintheeventofacolli-
sion.
Note
Theoillevelisautomaticallymeasuredduring
refuelling.
Themeasuredoillevelisdisplayedforapproxi-
matelyoneminutewhentheignitionisswitched
onortheengineisstarted.
However,thismeasurementisperformedonlyif
thefollowingpreconditionsaremet:
Engineisatoperatingtemperature,ignitionis
off,refuellingiscompletedwithin15minutes.
FuelRecommendations
YourPorscheisequippedwithcatalyticconver-
tersandmustuseUNLEADEDFUELONLY.
Yourengineisdesignedtoprovideoptimumper-
formanceandfueleconomyusingunleadedpre-
miumfuelwithanoctaneratingof98RON
(93CLCorAKI).Porschethereforerecom-
mendstheuseofthesefuelsinyourvehicle.
Porschealsorecognizesthatthesefuelsmay
notalwaysbeavailable.Beassuredthatyour
vehiclewilloperateproperlyonunleadedpre-
miumfuelswithoctanenumbersofatleast
95RON(90CLCorAKI).sincetheengine's
"ElectronicOktaneTMknockcontrol"willadapt
theignitiontiming,ifnecessary.
Theuseof
UNLEADEDFUELONLY
iscriti-
callyimportanttothelifeofthecatalytic
converters.Depositsfromleadedfuelswill
ruintheconvertersandmakeitineffective
asanemissioncontroldevice.
Carswithcatalyticconvertershaveasmaller
fueltankopening,andgasstationpumpshave
smallernozzles.Thiswillpreventaccidental
pumpingofleadedfuelintocarswithcatalytic
converters.
I>I>I>
Maintenance,CarCare
177

Unleadedfuelsmaynotbeavailableoutsidethe
continentalU.S.andCanada.Therefore,werec-
ommendyoudonottakeyourcartoareasor
countrieswhereunleadedfuelmaynotbeavail-
able.
Octaneratings
Octaneratingindicatesafuel'sabilitytoresist
detonation.Therefore,buyingthecorrectoctane
gasisimportanttopreventengine"damage".
TheRONoctaneratingisbasedontheresearch
method.TheCLC(U.S.CostofLivingCouncil
octanerating)orAKI(antiknockindex)octane
ratingusuallydisplayedonU.S.fuelpumpsis
calculatedasresearchoctanenumberplus
motoroctanenumber,dividedby2,thatiswrit-
tenas:
RON+MON
2
orR+M
2
TheCLCorAKIoctaneratingisusuallylower
thantheRONrating:
Forexample:95RONequals90CLCorAKI
178Maintenance,CarCare
Fuels
containing
alcohol
andether
SomeareasoftheU.S.requireoxygenated
fuelsduringcertainportionsoftheyear.Oxyge-
natedfuelsarefuelswhichcontainalcohols
(suchasmethanolorethanol)orether(suchas
MTBE).
Undernormalconditions,theamountofthese
compoundsinthefuelwillnotaffectdriveability.
YoumayuseoxygenatedfuelsinyourPorsche,
providedtheoctanerequirementsforyourve-
hiclearemet.Werecommend,however,to
changetoadifferentfuelorstationifanyofthe
followingproblemsoccurwithyourvehicle:
-Deteriorationofdriveabilityandperformance.
-Substantiallyreducedfueleconomy.
-Vaporlockandnon-startproblems,especially
athighaltitudeorathightemperature.
-Enginemalfunctionorstalling.
Fuels
containing
MMT
SomeNorthAmericanfuelscontainanoctane
enhancingadditivecalledmethylcyclopentadienyl
manganesetricarbonyl(MMT).
Ifsuchfuelsareused,youremissioncontrol
systemperformancemaybenegativelyaffected.
Thecheckenginewarninglightonyourinstru-
mentpanelmayturnon.
Ifthisoccurs,Porscherecommendsyoustop
usingfuelscontainingMMT.
PortableFuelContainers
A
Danger!
Portablefuelcontainers,fullorpartially
empty,mayleakcausinganexplosion,or
resultinfireincaseofanaccident.
t>Nevercarryadditionalfuelinportablecon-
tainersinyourvehicle.