Tires PORSCHE CAYMAN 2007 1.G User Guide

ATirepressureBTiretemperatureCTirepressuresforcoldtiresDTirepressureforhottiresEPressureincreaseastheresultoftempera-tureincreaseFPressuredropinfaulty/leakingtires1.Required-pressureline2.Warningstage1(from-3to-6psi(-0.2barto-0.4bar))3.Warningstage2(from-6psi(-0.4bar))
Pressureincreaseastheresultof
temperatureincrease
Inaccordancewithphysicalprinciples,theairpressurechangesasthetemperaturechanges.
Thetirepressureincreasesordecreasesbyaround1.5psi(0.1bar)forevery18°F(10°C)changeintemperature.
TheTirePressureMonitoringtakesthisrelationshipbetweentirepressureandtemperatureintoaccount.
Tirepressurespecications
InformationontirepressureforpublicroadscanbefoundinthisOwner’sManualintheTechnicalDatachapteroronthetire-pressureplateintheleftdooraperture.Thesevaluesapplytocoldtiresat68°F(20°C).
Pleaseobservethechapter”TIREPRESSUREFORCOLDTIRES”onpage299.
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InstrumentpanelOn-boardcomputerTextdisplayonon-boardcomputerMeaning/measure
FlatTireTirePressureMonitoringhasdetectedaseriouspressureloss.Stopinasuitableplaceandchecktiresfordamage.Fillintiresealantifnecessary.
AddairTheTirePressureMonitoringhasdetectedagradualpressureloss.Correcttirepressureatthenextopportunity.
TPCinactiveSystemlearningTheTirePressureMonitoringislearningthewheelsonthevehicle.TheTirePressureMonitoringissearchingforthetiresandtheirposition.Duringthisperiodthecurrentpressurespecificationsarenotavailableontheon-boardcomputer.
TPCinactiveTheTirePressureMonitoringisfaulty.ConsultyourauthorizedPorschedealer.
Controls,Instruments145

FrontLuggageCompartment
Accesscovers
(onvehicleswithDVDnavigationorCDchanger)
Opening
GraspaccesscoverAorBatthehandleandopen.
ThedriveforDVDnavigationandtheCDchangercanbefoundbehindtheaccesscoverB.
Caution!
Riskofdamage.
Donotstoreanyheavy,damporheat-sensitiveobjectsbehindtheaccesscovers.
E-AdapterforsecuritywheelboltsF-TirellingcompressorG-TowinghookH-ToolkitI-Tiresealant
Toolbox
Opening
Unlockturn-locksC.
Opentoolboxandplaceitontheflooroftheluggagecompartment.
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PorscheCommunication
Management(PCM)
GeneralinformationtothePorsche
CommunicationManagement(PCM)
RefertotheseparateoperatinginstructionsbeforeputtingthePCMintooperation.
Pleaseobservethechapter”LOADSWITCH-OFFAFTER2HOURSOR7DAYS”onpage259.
Warning!
Thereisdangerofaccidentifyousetoroperatetheon-boardcomputer,radio,navigationsystem,telephoneorotherequipmentwhendriving.Thiscoulddistractyoufromtrafcandcauseyoutolosecontrolofthevehicleresultinginseriouspersonalinjuryordeath.
Operatethecomponentswhiledrivingonlyifthetrafficsituationallowsyoutodosafely.
Carryoutanycomplicatedoperatingorsettingproceduresonlywiththevehiclestationary.
ThereceptionconditionsfortheradiomoduleintegratedinthePCMchangecontinuouslyasyoudrive.Interferencefrombuildings,terrainandtheweatherisunavoidable.FMstereoreception
isparticularlysusceptibletovaryingreceptionconditions.
ElectronicaccessoriesshouldonlyberetrofittedbyyourauthorizedPorschedealer.
AccessorieswhichhavenotbeentestedandapprovedbyPorschemayimpairradiofunctionandreception.
Navigation
Whenputintooperationforthefirsttime,adistanceofapprox.31miles(50km)mustbedriveninorderforthenavigationsystemtocompletetheprocessoffinecalibration.Thesameapplieswhenthetiresarechanged(e.g.summer/snowtires)ornewtiresfitted.Fulllocationaccuracyisnotyetachievedduringthefine-calibrationprocess.
Ifthevehiclehasbeentransported(e.g.ferry,cartrain),thesystemmaytakeafewminutestodeterminethecurrentlocationafterithasbeenswitchedon.
Serioustireslip(e.g.spinningwheelsonsnow)mayresultintemporarilyinaccuratenavigation.
Whenthebatteryhasbeendisconnected,itmaytakeupto15minutesbeforethenavigationsystembecomesoperationalagain.
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FuelEconomy
Fueleconomywillvarydependingonwhere,whenandhowyoudrive,optionalequipmentinstalled,andthegeneralconditionofyourcar.Acartunedtospecicationsandcorrect-lymaintained,willhelpyoutoachieveoptimalfueleconomy.
Haveyourvehicletunedtospecifications.Aircleanershouldbedirtfreetoallowproperengine“breathing”.Batteryshouldbefullycharged.Wheelsshouldbeproperlyaligned.Tiresshouldbeinflatedtothecorrectpres-sure.
Alwaysmonitoryourfuelconsumption.
Drivesmoothly,avoidabruptchangesinspeedasmuchaspossible.
Avoidjackrabbitstartsandsuddenstops.
Donotdrivelongerthannecessaryinthelowergears.Shiftingintoahighergearearlywithoutluggingtheenginewillhelpsavefuel.
Prolonged“warmup”idlingwastesgas.Startthevehiclejustbeforeyouarereadytodrive.Accelerateslowlyandsmoothly.
Switchofftheengineifstationaryforlongerperiods(trafficlights,jams,levelcrossings).
Anyadditionalweightcarriedinthevehiclereducesfueleconomy.Alwayskeepcargotoaminimumandremoveallunnecessaryitems.
Organizeyourtripstotakeinseveralerrandsinonetrip.
Allelectricalaccessoriescontributetoincreasedfuelconsumption.
Onlyswitchontheairconditioningwhennecessary.
TheEPAestimatedmilespergallon(mpg)istobeusedforcomparisonpurposes,actualmileagemaybedifferentfromtheestimatedmpg,dependingonyourdrivingspeed,weatherconditionsandtriplength.Youractualhighwaymileagewillprobablybelessthantheestimatedmpg.
Pleaseobservealllocalandnationalspeedlimits.
214Maintenance,CarCare

StoringyourPorsche
IfyouintendtostoreyourPorscheforaprolongedperiod,pleaseconsultyourauthorizedPorschedealer.Thestaffwillbegladtoadviseyouonthemostsuitableandnecessarymethods.
Cleanyourvehiclethoroughlyinsideandoutside.Cleantheenginecompartment.Theundercarriageandchassiscomponentsshouldbefreeofdirtandsaltdeposits.
Fillupthefueltank.
Changetheoilandoilfilter,andruntheengineforseveralminutes.
Increasethetirepressureto58psi(4bar).Itisnotrecommendedtoliftthevehicle,duetothepossibilityofcorrosiononshockabsorberpistonshafts.Thevehicleshouldbemovedslightly,approximatelyeveryfourweeks,topreventflatspotonthetires.
Climatecontrol
Theairconditioningsystemshouldbeingoodworkingconditionandfullycharged.
Windshield/Headlightwasher
Checkandcorrectantifreeze/cleaningsolutionlevelasnecessary.
Electricalsystem
Removethebatteryfromthevehicleandstoreitinacooldryplace,notonacementfloor.Whenthebatteryisdisconnected,thealarmsystemisdeactivated.
Rechargethebatteryevery3months.Ifthebatteryremainsinthevehiclewiththecablesconnected,itisnecessarytocheck,removeandrechargethebatteryevery2-3weeks.Donotfastchargethebattery.
Pleaseobservethechapter”BATTERY”onpage262.
Vehicleinterior
Theinteriormustbedry,especiallyintheareaofthefloorcarpets.Theuseofdryingagents(Silica-Gel)isrecommendedinvehicleswithleatherinteriorandinareaswithhighhumidity.Therecommendedamountis3fabricbagsof1.1lbs.(500grams)eachplacedonthefloorcarpets.
Windows,doors,lidsandtopmustbeclosed.Theairventsshouldbeopened.
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PracticalTips,EmergencyService
ExerciseExtremeCautionwhenWorkingonyourVehicle.......................................................236Tires/Wheels..............................................237LoadingInformation.....................................248FlatTire......................................................250WheelBolts................................................254Changingawheel........................................255Spacers.....................................................257ElectricalSystem........................................259Battery.......................................................262EmergencyStartingwithJumperCables........267Replacingbulbs...........................................269Headlights..................................................271Turnsignallight...........................................275Sidemarkerlight.........................................278Taillight......................................................279Additionalbrakelight...................................280Licenseplatelights......................................281Frontluggagecompartment/footwelllights....282Doorguard/curb/rearluggagecompartmentlights.........................................................283AdjustingHeadlights....................................284Towing.......................................................287
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Tires/Wheels
TheoriginalequipmenttiresandwheelrimsonyourPorschecomplywithallapplicableFederalMotorVehicleSafetyStandards.
Foryoursafetyrememberthefollowing:
–WheelrimsandwheelboltsarematchedtofityourPorsche.
–Ifyouintendtouseotherthanoriginalequip-mentwheels,besurethattheyconformtoPorschespecificationsforyourmodel.Onlytireswiththesamemakeandwiththesamespecificationcode(e.g.“N0”,“N1”...)canbemounted.
–Theuseofwheelrimsandwheelboltsthatdonotmeetspecificationsoftheoriginalfactoryinstalledequipmentwillaffectthesafeoperationofyourvehicle.
–Beforeyouplanonexchangingwheels,orsnowtiresalreadymountedonthewheelrims,consultyourauthorizedPorschedealer.Yourdealerhasthetechnicalinformationnecessarytoadviseyouwhichwheelrimsandwheelboltsarecompatiblewiththeoriginalfactoryinstallations.
Danger!
Riskoflossofcontrolandseriouspersonalinjuryordeath.
Ifwhiledriving,yourvehicleexperiencesasuddenvibrationorridedisturbance,and/oryoususpectthatpossibledamagetoyourtiresorvehiclehasoccurred,youshouldimmediatelyreduceyourspeedwithoutexcessiveuseofthebrakes.
Stopthevehicleassoonaspossible,andinspectthetires.Ifyoucannotdeterminethecauseforthedisturbance,haveyourvehicletowedtothenear-estPorscheortiredealertohaveyourvehicleortire(s)inspected.
Continuingtooperatethevehiclewithoutcorrectioncouldresultinalossofcontrolandseriouspersonalinjury.
Example
UniformTireQualityGrading
Qualitygradescanbefoundwhereapplicableonthetiresidewallbetweentreadshoulderandmaximumsectionwidth.
AllpassengercartiresmustconformtoFederalSafetyRequirementsinadditiontothesegrades.
Treadwear
Thetreadweargradeisacomparativeratingbasedonthewearrateofthetirewhentestedundercontrolledconditionsonaspecificgovernmenttestcourse.Forexample,atiregraded150would
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wearoneandahalf(1-1/2)timesaswellonthegovernmentcourseasatiregraded100.Therelativeperformanceoftiresdependsupontheactualconditionsoftheiruse,however,andmaydepartsignificantlyfromthenormduetovariationsindrivinghabits,servicepracticesanddifferencesinroadcharacteristicsandclimate.
TractionAA,A,B,C
Thetractiongrades,fromhighesttolowest,areAA,A,BandCandtheyrepresentthetire’sabilitytostoponwetpavementasmeasuredundercontrolledconditionsonspecifiedgovernmenttestsurfacesofasphaltandconcrete.AtiremarkedCmayhavepoortractionperformance.
Warning!
Thetractiongradeassignedtothisisbasedonbraking(straight-ahead)tractiontestsanddoesnotincludecornering(turned)traction,acceleration,hydroplaningorpeaktractioncharacteristics.
TemperatureA,B,C
ThetemperaturegradesareA(thehighest),BandC,representingthetire’sresistancetothegenerationofheatanditsabilitytodissipateheatwhentestedundercontrolledconditionsonaspecifiedindoorlaboratorytestwheel.Sustainedhightemperaturescancausethematerialof
thetiretodegenerateandreducetirelife,andexcessivetemperaturecanleadtosuddentirefailure.ThegradeCcorrespondstoalevelofperformancewhichallpassengercartiresmustmeetundertheFederalMotorVehicleSafetyStandardNo.109.GradesBandArepresenthigherlevelsofperformanceonthelaboratorytestwheelthantheminimumrequiredbylaw.
Warning!
Thetemperaturegradeforthistireisestab-lishedforatirethatisproperlyinflatedandnotoverloaded.Excessivespeed,underinfla-tion,orexcessiveloading,eitherseparatelyorincombination,cancauseheatbuildupandpossibletirefailure,resultinglossofcontrol,leadingtoseriouspersonalinjuryordeath.
Tirepressures
Warning!
Incorrecttirepressurecausesincreasedtirewearandadverselyaffectsroadhan-dling.Thiscouldleadtotirefailure,resultinginlossofcontrol,leadingtoseriouspersonalinjuryordeath.
Alwaysuseanaccuratetirepressuregaugewhencheckinginflationpressures.
Donotexceedthemaximumtirepressurelistedonthetiresidewall.
Pleaseobservethechapter”TIREPRESSUREPLATE”onpage240.
Coldtireinflationpressuremeans:alltiresmustbecold,ambienttemperaturemaximum(68°F/20°C),whenadjustingtheinflationpressure.Avoidsunlightstrikingthetiresbeforemeasuringcoldpressures,sincethepressureswouldrisefromtemperatureinfluence.
Valvecapsprotectthevalvefromdustanddirt,andthusfromleakage.Alwaysscrewcapstightlydown.Replacemissingcapsimmediately.
Useonlyplasticvalvecaps.
238PracticalTips,EmergencyService

Donotusecommerciallyavailablesealantortireinflatingbottles.OnlyusePorscheapprovedtiresealant.
Pleaseobservethechapter”TIREPRESSUREFORCOLDTIRES”onpage299.
Eachtire,includingthespare(ifprovided),shouldbecheckedevery2weekswhencold(68°F/20°C)andinflatedtotheinflationpres-surerecommendedinthisOwner’sManualoronthetire-pressureplate.IfyourvehiclehastiresofadifferentsizethanthesizeindicatedinthisOwner’sManualoronthetire-pressureplate,youshoulddeterminethepropertireinflationpressureforthosetires.
Asanaddedsafetyfeature,yourvehiclehasbeenequippedwithatirepressuremonitoring(TPC)thatilluminatesalowtirepressuremessagewhenoneormoreofyourtiresissignificantlyunder-inflated.Accordingly,whenthelowtirepressuremessageilluminates,youshouldstopandcheckyourtiresassoonaspossible,andinflatethemtotheproperpressure.Drivingonasignificantlyunder-inflatedtirecausesthetiretooverheatandcanleadtotirefailure.Under-inflationalsoreducesfuelefficiencyandtiretreadlife,andmayaffectthevehicle’shandlingandstoppingability.
PleasenotethattheTPCisnotasubstituteforpropertiremaintenance,anditisthedriver’sresponsibilitytomaintaincorrecttirepressure,evenifunder-inflationhasnotreachedthelevelto
triggerilluminationoftheTPClowtirepressuremessage.
Onvehicleswithtirepressuremonitoring:
Pleaseobservethechapter”TPCTIREPRESSUREMONITORING”onpage122.
Whentiresarewarm,thetirepressureisincreased.
Neverletairoutofhottires.Thiscouldcausethetirepressuretofallbelowtheprescribedvalue.
Insufficienttirefillingpressurecancausetirestooverheatandthusbedamaged-eveninvisibly.Hid-dentiredamageisnoteliminatedbysubsequentlycorrectingthetirepressure.
Overloading
Danger!
Riskofdamagetovehicleparts,lossofcontrolandseriouspersonalinjuryordeath.
Donotoverloadyourvehicle.Becarefulabouttheroofload.
Ifloadingthevehiclealsocorrectthetirepressure.Tirepressureforloadedvehiclecanbefoundonthetirepressureplateandinthechaptertechnicaldata.
Neverexceedthespecifiedaxleload.Over-loadingcanshortentheservicelifeofthetiresandcar,aswellasleadtodangerousvehiclereactionsandlongbrakingdistances.Damageduetooverloadingisnotcoveredbythevehi-clewarranty.
Pleaseobservethechapter”LOADINGINFORMATION”onpage248.
Pleaseobservethechapter”TIREPRESSUREFORCOLDTIRES”onpage299.
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