2007 PORSCHE 911 CARRERA temperature

ATirepressureBTiretemperatureCTirepressuresforcoldtiresDTirepressureforhottiresEPressureincreaseastheresultoftempera-tureincreaseFPressuredropinfaulty/leakingtires1Required-pressureline2Warningstage1(from-3psito-6psi(-0.2barto-0.4bar))3Warningstage2(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)ambienttemperature.
Controls,Instruments135

OILDisplayandmeasurementof
theengineoillevel
Conditionsformeasuringtheoillevel
Caution!
Riskofenginedamage.
Regularlychecktheoillevelafterrefueling.
Donotallowtheoilleveltofallbelowtheminimummark.
1.Itisimportanttoensurethatthevehicleishorizontalforcorrectoillevelmeasurementtooccur.
2.Engineisoff.
3.Ignitionon.
Oilreturntime
Beforetheoillevelismeasured,theengineoilhastohaveflowedbackintotheoilpan.Thetimetakenfortheengineoiltoflowbackdependsontheenginetemperatureandhowlongtheenginehasbeenstopped.
Thiswaitingtimeiscounteddownintheon-boardcomputerdisplaywhentheignitionisswitchedon.Theoilleveldisplaysegmentsstartto“cycle”.
Itisbesttomeasuretheengineoillevelbeforeembarkingonajourney(ifthevehiclehasnotbeendrivenforanextendedperiod)orwiththeengineatoperatingtemperature.Shorterwaitingtimesareachievedinthisway.
Initiatingoillevelmeasurement
Switchignitionon(donotstarttheengine).Theengine-oillevelmeasurementdisplayappearsintheon-boardcomputer.
Allowwaitingtimetoelapse.
Oncethemeasurementhasbeencompleted,youcanreadofftheengineoillevelonthesegmentdisplay.
–Ifthesegmentsarefilledinuptothetopline,theoillevelhasreachedthemaximummark.
Undernocircumstancesaddengineoil.
136Controls,Instruments

–Ifonlythebottomsegmentisfilledin,theoillevelhasreachedtheminimummark.
Addengineoilimmediately.
–Ifthebottomsegmentflashes,theoillevelhasdroppedtobelowtheminimummark.
Addengineoilimmediately.
Thedifferencebetweentheminimumandmax-imummarksonthesegmentdisplayisapprox.1.2liters.Eachsegmentofthedisplaycorre-spondstoaquantityapprox.0.4liter.
Addengineoilifnecessary.
Pleaseobservethechapter”ENGINEOILLEVEL”onpage236.
Neveraddmoreengineoilthanrequiredtoreachthemaximummark.Oillevelmeasurementduringrefueling
Theoillevelisautomaticallymeasuredduringrefueling.
Preconditions
1.Ignitionisswitchedoff.
2.Iftheengineisatoperatingtemperature,atleast5minutesmustelapsebetweenparkingthevehicleandstartingtheengine.
3.Refuelingcompletedwithin15minutes.
Whentheignitionisswitchedon,theengineoillevelisshownonthesegmentdisplay.
Measurementwillbestoppediftheaboverequire-mentsarenotmet.
Startoillevelmeasurementinthe“OIL“menuor
Startoillevelmeasurementbyswitchingontheignition.
Failure
Afailureoftheoilleveldisplayisindicatedbyawarningmessageintheon-boardcomputer.
Controls,Instruments137

Reset
–Resetall,
–Resetaverageconsumption,
–Resetaveragespeed,
–Resettripcounter
Units
–Speedometerkm-km/h,miles-mph
–Consumptionl/100km,mls/gal(USA),mpg(UK),km/l
–TemperatureCelsius,Fahrenheit
–Tirepressurebar,psi
Display(Selectcentrallineofthe
on-boardcomputer)
Changedisplay
–Audioinformation(setradiostation)
–Rangeonremainingfuel
–Empty
Telephoneinfo
WhenTelephoneinformationisactive,incomingtelephonecallsaredisplayedontheon-boardcomputer.
140Controls,Instruments

Generalinformationregardingthe
on-boardcomputerfunctions
Rangeonremainingfuel
Therangeonremainingfueliscontinuouslyrecalculatedduringthejourneybasedonthefuellevel,currentconsumptionandaverageconsumption.Themorethefuellevelfalls,themorespontaneouslythedisplayreacts.Forthisreason,therangeonremainingfuelisnotdisplayediflessthan9miles(15kilometers).
Ifthevehicle’sinclinationchangeswhiledrivingorrefueling,incorrectrangeinformationmaytemporarilybegiven.
Note
Ifthetankisnearlyemptyandyoutopupwithonlyasmallquantityoffuel,anaccuraterangeonremainingfuelisimpossible.
Averageconsumptionandaveragespeed
Thevaluesdisplayedarebasedonthedistancetravelledsincethelastresetto“zero”.
Youcansetthestartingtimeforameasurementbeforeorduringthetrip.Switchingtheignitionoffdoesnotresetthemeasurements.Itisthereforepossibletocollectvaluesoverlongperiods.Disconnectingthecarbatterywillcausethesememoriestobeerased.
Tirepressure
TheTirepressurefunctionoftheon-boardcomputerdisplaysthetirepressuresdependentontemperatureinthefourwheels.Youcanwatchthetirepressureriseandfallwhiledriving.Thedisplayisonlyforinformation.Tocorrectthetirepressures,alwaysusethedisplayedvaluesfromthe“Infopressure”displayintheTirepressuremenu.
142Controls,Instruments

InstrumentpanelOn-boardcomputerTextdisplayonon-boardcomputerMeaning/measure
LIMITCannotbeacceptedwithvehiclestopped
Thecurrentspeedcanonlybeacceptedfortheacousticwarningsignalwhenthevehicleisinmotion.
LIMIT30Selectedspeedlimit(e.g.30mph)fortheacousticwarningsignalhasbeenexceeded.Adjustyourspeedifnecessary.
FuelgaugewarninglightConsiderremainingrangeRefuelatnextopportunity.
CheckengineoillevelStartengineoillevelmeasurementintheon-boardcomputer.Thevehiclemustbehorizontalandtheignitionmustbeswitchedon.
EngineoilpressuretoolowStopimmediatelyatasuitableplace,measureoillevelwiththeon-boardcomputerand,ifnecessary,addengineoil.
WarninglightTemperaturegaugeEnginetemperaturetoohighSwitchengineoffandletitcool.Checkcoolantleveland,ifneces-sary,addcoolant.
TemperaturegaugewarninglightflashesCheckcoolantlevelSwitchengineoffandletitcool.Checkcoolantleveland,ifneces-sary,addcoolant.
Controls,Instruments145

InstrumentpanelOn-boardcomputerTextdisplayonon-boardcomputerMeaning/measure
Enginediagnostics-workshopStopimmediatelyatasuitableplaceandchecktankcapforproperfastening.Ifthetankcapwasfastenedcorrectly,consultyourauthorizedPorschedealer.
ReducedenginepowerConsultyourauthorizedPorschedealer.
TemperaturegaugewarninglightflashesFailureofenginecompartmentblowerConsultyourauthorizedPorschedealer.
WarningBattery/generatorStopatasafeplaceandswitchtheengineoff.Donotcontinuedriving.HavethefaultremediedatanauthorizedPorschedealer.
OilpressuregaugefaultyHavethefaultremediedatanauthorizedPorschedealer.
OilleveldisplayfaultyHavethefaultremediedatanauthorizedPorschedealer.
OiltemperaturegaugefaultyHavethefaultremediedatanauthorizedPorschedealer.
IndicatorfaultyCoolantindicatorfailed.HavethefaultremediedatanauthorizedPorschedealer.
BrakepadwearHavethebrakepadschangedimmediatelyatanauthorizedPorschedealer.
146Controls,Instruments

InstrumentpanelOn-boardcomputerTextdisplayonon-boardcomputerMeaning/measure
TPCinactiveSystemlearning
TheTirePressureMonitoringislearningthewheelsonthevehicle.TheTirePressureMonitoringissearchingforthetiresandtheirposition.Duringthisperiodthecurrentpressurespecificationsarenotavailableontheon-boardcomputer.
TPCinactiveTheTirePressureMonitoringisfaulty.ConsultanauthorizedPorschedealer.
TPCinactiveBriefdisturbanceTPCinactiveToomanywheeltransmitters
TheTirePressureMonitoringistemporarilydeactivatedbyexcessivetiretemperatures(approx.120C(248F))orexternalinterference(e.g.fromotherwheeltransmittersinsidethecar).Oncethesourceoftheinterferenceisremoved,thesystemisautomaticallyreactivated.
Controls,Instruments151