2007 PORSCHE 911 CARRERA heating

HowEmissionControlWorks
Whenanautomobileengineisrunning,itusesenergygeneratedthroughthecombustionofamixtureofairandfuel.Dependingonwhetheracarisdrivenfastorslowlyorwhethertheengineiscoldorhot,someofthefuel(hydrocarbons)maynotbeburnedcompletely,butmaybedischargedintotheenginecrankcaseorexhaustsystem.Additionalhydrocarbonsmayentertheatmospherethroughevaporationoffuelfromthefueltank.Thesehydrocarbons(HC),whenreleasedintotheair,contributetoundesirablepollution.
Inaddition,carbonmonoxide(CO)andoxidesofnitrogen(NOx)contributetoengineemissions.They,too,areformedduringthecombustionprocessanddischargedintotheexhaustsystem.
Toreducethesepollutants,yourPorscheisequippedwithapreciselycalibratedfuelinjectionsystemtoassureafinelybalancedair/fuelmixtureunderalloperatingconditions.
Oxygensensor
Theoxygensensor,installedintheexhaustpipecontinuouslysensestheoxygencontentoftheexhaustandsignalstheinformationtoanelectroniccontrolunit.Thecontrolunitcorrectstheair/fuelratio,sotheenginealwaysreceivesanaccuratelymeteredair/fuelmixture.
Crankcaseventilation
Throughcrankcaseventilation,undesirableemissionsfromtheenginecrankcasearenotpermittedtoreachtheoutsideatmosphere.Theseemissionsarerecirculatedfromthecrankcasetotheairintakesystem.Fromheretheemissionsmixwiththeintakeairandarelaterburnedintheengine.
Catalyticconverters
Thecatalyticconvertersareefficient“clean-up”devicesbuiltintotheexhaustsystemofthevehicle.Thecatalyticconvertersburntheundesirablepollutantsintheexhaustgasbeforeitisreleasedintotheatmosphere.
Theexclusiveuseofunleadedfueliscriticallyimportantforthelifeofthecatalyticconvert-ers.Therefore,onlyunleadedfuelmustbeused.
Thecatalyticconverterswillbedamagedby:
–pushortowstartingthevehicle
–misfiringoftheengine
–turningofftheignitionwhilethevehicleismovingor
–drivinguntilthefueltankiscompletelyempty
–byotherunusualoperatingconditions.
Donotcontinuetooperateyourvehicleundertheseconditions,sincerawfuelmightreachthecatalyticconverters.Thiscouldresultinoverheatingoftheconverters.Federallawprohibitsuseofleadedfuelinthiscar.
248Maintenance,CarCare

2.Firstconnectthenegativecable(black)tothenegativeterminalofthedonorbattery,thenconnectittoasuitablegroundingpointonthevehiclewiththedischargedbattery.Thisgroundingpointmustlieasfaraspossiblefromthebattery.Forexample,asolidmetalpartortheengineblockaresuitablegroundingpoints.Ifnosuitablegroundingpointsaretobefoundoneithervehicle,thenegativecablemustcarefullybeconnecteddirectlytothenegativeterminalofthebattery.Ifasuitablegroundingpointistobefoundonlyonthedonorvehicle,thenegativecablemustfirstbeconnectedtotheterminalofthedischargedbattery,thentothegroundingpointofthedonorvehicle.
3.Runtheengineofthedonorcaratahigherspeed.
4.Starttheengine.Anattemptedstartusingjumpercablesshouldnotlastmorethan15seconds.Thenallowawaitingperiodofatleastoneminute.
Note
Beforedisconnectingthejumpercables,electricalloadssuchastheheatedrearwindowandtheheatingfanblowershouldbeswitchedon(thevehicle’slightsmustnotbeswitchedon).Thisreducesvoltagepeakswhichmayoccurwhendisconnectingthejumpercables.
Withtheenginerunning,removebothjumpercablesinreverseorder.
PracticalTips,EmergencyService301

Clotheshook..............................................172Clutch..................................................70,192Comfortseat................................................39ComingHomemode....................................154CompactdiscPlayerandChanger...............................186Storage...............................................173Compartmentmonitoring...............................30Compressor...............................................179Convertibletop...........................................204Care....................................................258Coolant..............................................101,233Temperaturegauge...............................101Warninglight.........................................101Coolantlevel...............................................233Coolingsystem...................................101,233Cruisecontrol.....................................160,162Cupholder..................................................170
DDashboard...................................................84Databank...................................................326Defrostingwindows...............................36,164Diagnosticsocket.................................19,293Dimensions................................................343Door............................................................25Guardlights..........................................316Handles.................................................25Locks............................................25,259Mirror....................................................34Mirrorheating.........................................36Windows...........................25,32,204,260
Drivinghints..................................................15Drivinginwinter...........................................197Drivingperformance............................341,342Drop-centerrim...........................................277DVDnavigation............................................179DVDNavigation...................................177,185Dynamometertesting....................................66
EElectricalsystem.........................................292Emergencyflasher......................................153EmergencyoperationCentrallocking........................................27Lids.....................................................294Slidingroof...........................................201Tankflap..............................................244Emergencyservice......................................266Emergencystartingwithjumpercables..........300Emissioncontrolsystem...........7,107,247,248EngineCheckingtheoillevel.............................136Exhaust...................................................9Number...............................................327Oilconsumption..............................19,235Oillevel................................................236Oillevelindicator...................................136Oilpressure..........................................105Oiltemperature.......................................95Oils..............................................235,335Speeds..................................19,341,342Starting.................................................89Stopping................................................90
EnginecompartmentBlower...................................................90Lid...............................................175,176Lidwarninglight....................................175Light....................................................315Enginecompartmentblower.........................101Environment...................................................6
FFillingpressure,tire.....................................334Fireextinguisher..........................................181Floormats..................................................263Fluidsandfuels...........................................335Foglights...................................................154Footbrake....................................................72Footwelllights.............................................315Four-wheeldrive......................................66,67Freshairintake...........................................166Frontlid......................................................175Fuel.......................................................5,103Containers.......................................9,245Economy.............................................242Evaporationcontrol...............................249Levelgauge..........................................103Levelwarninglight.................................103Recommendation..................................246Tank............................................244,245Functionkeys................................................46Fuses.........................................................293
GGaragedooropener....................................182
Index349

On-boardliterature..........................................1Orientationlight.............................................83Outsidetemperaturindicator........................104
PPaintCare....................................................257Data....................................................327ParkAssistant...............................................64Parking......................................................197Parkingaids..................................................64Mirrors...................................................65Parkingbrake...............................................71Warninglight...........................................71Parkinglight.......................................154,156Particlefilter...............................................252Passengercompartmentmonitoring...............30Plasticparts...............................................262Platformlift.................................................284PorscheActiveSuspensionManagement(PASM).........................................................82PorscheCeramicCompositeBrake...................8PorscheCommunicationManagement(PCM).185PorscheStabilitySystem(PSM)......................79Informationlight......................................81Powermeasurement.....................................66Powermeasurements..................................232Powersteeringfluidlevel......................251,335Powerwindows...............................25,32,204Practicaltips...............................................266
RRadiatorfan..........................................90,233Radioreception...........................................186Rainsensor................................................158Rangeonremainingfuel.......................111,142Readinglight.........................................83,317Rearfoglight..............................................154Rearlid......................................................175Rearseatbackrests......................................44Rearspoiler..................................................68Rearviewmirrors....................................34,35Rearwindow...............................................226Rearwindowdefogger...................................36Rearwindowwiper......................................158Recycling.......................................................7Reduceddrivingprogram,Tiptronic...............198Relays........................................................292Releasebutton............................................193Remotecontrol.............................................23Replacementkey...........................................22Replacingbulbs...........................................302Replacingwiperblades................................255RimsDiameter..............................................277Rimwidth.............................................277Rollerblind.................................................224RolloverProtectionSystem............................63RoofTransportSystem................229,336,337Runningin.....................................................19
SSafetybelts..........................................48,263Heightadjustment...................................50Tensioner...............................................48Warninglight...........................................49Safetycompliancesticker............................326Sealingset.................................................281Seals.........................................................262SeatAdjustment.............................................39Heating..................................................43Memory.................................................41Selectorlever.............................................193selectorleverpositionindicator....................194Selectorleverpositionindicator....................102Shiftinggear...............................................192Sidemarkerlight.................................154,311Sidevents..................................................166Slidingglassroof.........................................225Slidingroof.................................................200Snowchains...............................................275Snowtires..................................................274Socket.......................................................292Spacers.....................................286,288,290Sparekey...............................................22,23Speedcodeletter........................................276Speedcontrol...............................96,160,162Speedlimit.........................................113,276Speedometer...............................................99Spoiler.........................................................68SportChronoPackageCHRONOstopwatch..............................120
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