thisprocess,theTirePressureMonitoringrecog-nizesthetiresandtheirlocations.Theon-boardcomputerdisplayesthemessage“TPCinactive-systemlearning”.
TheTirePressureMonitoringrequiresacertainamountoftimetolearnthewheels.Duringthistime,thecurrenttirepressuresarenotavailableontheon-board-computer:
–ThedisplayoftheTirepressurefunctionoftheon-boardcomputershowslines.
–Therequiredpressuresforcoldtiresat68°F(20°C)areindicatedintheInfopressuredisplayintheTirepressuremenu.
–Tirepressurewarningsareissuedwithouttirepressureandpositioninformation(gure)assoonasthevehicle’sownwheelshavebeendetectedandthetirepressurewarninglighthasgoneout.
PositionandpressureinformationisdisplayedassoonastheTirePressureMonitoringhasassignedthewheelsidentifiedasbelongingtothevehicletothecorrectwheelpositions.
Thewheellearningprocesstakesplaceexclusivelywhenthevehicleisbeingdriven.
Manuallycheckthetirepressureatallwheelsandcorrectthetirepressuretotherequiredvalue.
Changingawheelandreplacingtires
Newwheelsmustbefittedwithradiotransmit-tersfortheTirePressureMonitoring.Beforetiresarechanged,thebatterychargestateofthewheeltransmittersshouldbecheckedatanauthorizedPorschedealer.
Switchtheignitionoffwhenchangingawheel.
Thetiresettingsontheon-boardcomputermustbeupdatedafterchangingawheel.
Amessageappearsifthecharacteristicsofthenewtiresdonotagreewiththeon-boardcomputersettings.
Updatetheon-boardcomputersettingswhenthevehicleisstationarythenexttime.
Warninglight
Thewarninglightinthespeedometerlightsup:
–Whenalossinpressurehasbeendetected
–IftheTirePressureMonitoringisfaulty
–Whenlearningnewlymountedwheels/wheelsensors,aslongasthevehicle’sownwheelshavenotyetbeenrecognized.
Thetirepressurewarninglightintheinstrumentpanelgoesoutonlywhenthecauseofthefaulthasbeenrectified.
Nomonitoring
IntheeventoffaultstheTirePressureMonitoringcannotmonitorthetirepressure.Thewarninglightontheinstrumentpanellightsupandacorrespondingmessageappearsontheon-boardcomputer.
Monitoringisnotactivewhen:
–theTirePressureMonitoringisfaulty,
–wheeltransmittersfortheTirePressureMonitoringaremissing,
–temporarilyafterchangingawheel(learningphase),
–morethanfourwheeltransmittersaredetect-ed,
–thereisexternalinterferencebyotherradiosources,e.g.wirelessheadphones,
–tiretemperaturesaretoohigh.
Pleaseobservethechapter”WARNINGSONTHEINSTRUMENTPANELANDTHEON-BOARDCOMPUTER”onpage143.
134Controls,Instruments
CarAudioOperation/Tips
Generalinformation
Forradiooperationseeyourradiomanualwhichisincludedwithyouron-boardlitera-ture.
Pleaseobservethechapter”LOADSWITCH-OFFAFTER2HOURSOR7DAYS”onpage293.
FMreception
Avehicleisnotanidealplacetolistentoaradio.Becausethevehiclemoves,receptionconditionsareconstantlychanging.Buildings,terrain,signaldistanceandnoisefromothervehiclesareallworkingagainstgoodreception.SomeconditionsaffectingFMmayappeartobeproblemswhentheyarenot.
Thefollowingcharacteristicsarecompletelynormalforagivenreceptionarea,andtheydonotindicateanyproblemwiththeradioitself.
Note
ElectronicaccessoriesshouldonlybeinstalledbyyourauthorizedPorschedealer.EquipmentwhichhasnotbeentestedandapprovedbyPorschemayimpairradiofunctionandreception.
Fadinganddrifting
FMrangeislimitedtoabout25miles(40km),exceptforsomehighpowerstations.
Ifavehicleismovingawayfromthedesiredstation’stransmitter,thesignalwilltendtofadeand/ordrift.ThisconditionismoreprevalentwithFMthanAM,andisoftenaccompaniedbydistortion.Fadinganddriftingcanbeminimizedtoacertaindegreebycarefulattentiontofinetuningorselectionofastrongersignal.
Staticanduttering
Whentheline-of-sightlinkbetweenatransmitterandvehicleisblockedbylargebuildingsormoun-tains,theradiosoundmaybeaccompaniedwithstaticorflutteringbecauseofthecharacteristicofFM.Inasimilareffect,aflutteringnoiseissome-timesheardwhendrivingalongatree-linedroad.
Thisstaticandflutteringcanbereducedbyadjust-ingthetonecontrolforgreaterbassresponseuntilthedisturbancehaspassed.
Multipath
BecauseofthereflectingcharacteristicsofFM,directandreflectedsignalsmayreachtheantennaatthesametime(multipath)andcanceleachotherout.Asavehiclemovesthroughtheseelectronicdeadspots,thelistenermayhearamomentaryflutterorlossofreception.
Stationswapping
WhentwoFMstationsareclosetoeachother,andanelectronicdeadspot,suchasstaticormultipatharea,interruptstheoriginalsignal,sometimes
thestrongersecondsignalwillbeselectedautomaticallyuntiltheoriginalonereturns.Thisswappingcanalsooccurasyoudriveawayfromtheselectedstationandapproachanotherstationofastrongersignal.
Compactdiscplayer
Caution!
Toavoiddamagetocompactdiscplayeranddiscs.
Useonlycompactdiscslabeledasshown,havingnodirt,damageorwarpage.
Neverattempttodisassembleoroilanypartoftheplayerunit.Donotinsertanyobjectotherthanadiscintotheslot.Remembertherearenouser-serviceablepartsinsidethecompactdiscplayer.
Donotallowthedisctosustainanyfinger-prints,scrapesorstickersonthesurfaces.Thismaycausepoorsoundquality.Holdthedisconlyontheedgeorcenterhole.
Whennotinuse,takethediscoutoftheplayer,putthediscbackintoitscaseandstoreitawayfromdust,heat,dampanddirectsunlight.Leavingthedisconthedashboardinthesuncandamagethedisc.
186Controls,Instruments
