2003 PORSCHE 911 CARRERA air condition

~
Defrosting
the
windshield

I>Pressbutton.
Windshieldisdemistedordefrostedas
quicklyaspossible.
Airflowstothewindshieldonly.

{}
Switchingcompressorfor
air-conditioningsystem
onoroff
Wheneveroutsidetemperaturesexceed

3rFj3°C,
theair-conditioningcompressorisal-
waysswitchedoninautomaticoperation.
Thecompressorcanbeswitchedofftosave
fuel,butcontrolcomfortisthenlimited.
I>Pressbutton.
Thecompressorisswitchedoff,thesymbol
intheleft-handdisplaygoesout.
Iftheinteriortemperatureistoohigh,switch
compressorbackonorpress"auto"-button.
Todryincomingairindampweather,donot
switchofftheair-conditioningcompressor.
Thispreventsmistingofwindows.
B-
Adjustingblowerspeed

I>Presstheappropriatebutton.
Presetblowerspeedisincreasedorde-
creased,and"Manual"appearsintheright-
handdisplayfield.
c8J
Thespeedstagesareindicatedbya
bardisplay.
Iftheminusbuttonispressedatthelowest
blowerstage,theblowerandautomaticcontrol
areswitchedoff.
"OFF"isdisplayedintheleft-handdisplay.
Pressingontheplusbuttonorthe"auto"button
switchestheblowerandautomaticcontrolback
onagain.

Circulating-airsetting

/!\Warning!
Riskofaccidentduetohamperedvision.
Incirculating-airsetting,thewindowscan
mistup.
I>Onlyselectcirculating-airsettingforshort
periods.
I>Ifwindowsmistup,turnoffthecirculating-air
settingbypressingthecirculating-airbutton
brieflyandselectthefunction"Defrostwind-
shield".
-
\..J
Switchingcirculating-airsetting
onoroff
I>Pressbutton.
Theoutside-airsupplyisinterruptedandonly
theinsideairiscirculated.
Overapprox.
37°F/3°C

Iftheair-conditioningcompressorwasoff,it
switchesonautomatically.Thedurationofcircu-
lating-airmodeisnotlimited.
Belowapprox.
37°F/3°C

Theair-conditioningcompressorisswitchedoff.
Circulating-airmodeisautomaticallyendedafter
approx.3minutes.
I>I>I>
Controls,Instruments
107

Q
Airdistributiontofootwell
[>
Pressbutton.
Theairflowstothefootwell.
@Airdistributiontothe
centralandsidevents
[>Pressbutton.
Theairflowsfromthecentralandsidevents.
Ventsmustbeopen.
6
Airdistributionto
windshield
[>
Pressbutton.
Theairflowstothewindshield.
108Controls,Instruments
Generalinstructionsfor
air-conditioningcompressor
-Canswitchoffbrieflyifengineisunderan
extremeloadtoensuresufficientenginecool-
ing.
-Switchesoffautomaticallyattemperatures
below
3rFj3°C
andcannotbeswitchedon,
evenmanually.
-Operatesmosteffectivelywithwindows
closed.
Ifthecarhasbeeninthesunforalongtime,
however,itisagoodideatoventilatethein-
teriorbrieflywithdoorwindowsopen.
-Dependingontheoutsidetemperatureandhu-
midity,condensationcandripfromtheevap-
oratorandformapoolunderthecar.
Thisisnormalandnotasignofleakage.
-Ifuncooledairflowsoutwhenthelowesttem-
peraturehasbeenset,switchofftheair-con-
ditioningcompressorandconsultwithan
authorizedPorschedealer.

A-Continuousopeningandclosing
B-Settingventdirection
Changingairflowdirection
CentralandSideVents
~
I>Movethevanestomaketheairflowinthe
desireddirection.
Openingvents
I>Rotateknurledwheelupward.
Outsideairorconditionedaircanbedelivered
fromallvents,dependingontheair-distribution
settingontheoperatingpanel.
.Closing
vents

I>Rotateknurledwheeldownward.
Fresh-airintake
Toensureproperairintake:
I>Keepthefresh-airinletbetweentheluggage
compartmentlidandthewindshieldfreefrom
snow,iceandleaves.
Controls,Instruments
109

CarAudioOperationlTips
Forradiooperationseeyourradiomanual
whichisincludedwithyouron-board
literature.
Alsoseethechapteron"Loadswitch-off".

FMreception

Avehicleisnotanidealplacetolistentoa
radio.
Becausethevehiclemoves,receptionconditions
areconstantlychanging.
Buildings,terrain,signaldistanceandnoisefrom
othervehiclesareallworkingagainstgoodre-
ception.
SomeconditionsofFMmayappeartobeprob-
lemswhentheyarenot.
Thefollowingcharacteristicsarecompletelynor-
malforagivenreceptionarea,andtheydonot
indicateanyproblemwiththeradioitself.
Note
Electronicaccessoriesshouldonlybeinstalled
byyourauthorizedPorschedealer.
Equipmentwhichhasnotbeentestedandap-
provedbyPorschemayimpairradioreception.
124Controls,Instruments

Fadinganddrifting

FMrangeislimitedtoabout25miles(40km),
exceptforsomehighpowerstations.
Ifavehicleismovingawayfromthedesiredsta-
tion'stransmitter,thesignalwilltendtofade
and/ordrift.Thisconditionismoreprevalent
withFMthanAM,andisoftenaccompaniedby
distortion.
Fadinganddriftingcanbeminimizedtoacertain
degreebycarefulattentiontofinetuningorse-
lectionofastrongersignal.

Staticandfluttering

Whentheline-of-sightlinkbetweenatransmitter
andvehicleisblockedbylargebuildingsor
mountains,theradiosoundmaybeaccompa-
niedwithstaticorflutteringbecauseofthechar-
acteristicofFM.
Inasimilareffect,aflutteringnoiseissome-
timesheardwhendrivingalongatree-linedroad.
Thisstaticandflutteringcanbereducedbyad-
justingthetonecontrolforgreaterbassre-
sponseuntilthedisturbancehaspassed.

Multipath

BecauseofthereflectingcharacteristicsofFM,
directandreflectedsignalsmayreachthean-
tennaatthesametime(multipath)andcancel
eachotherout.
Asavehiclemovesthroughtheseelectronic
deadspots,thelistenermayhearamomentary
flutterorlossofreception.

Stationswapping

WhentwoFMstationsareclosetoeachother,
andanelectronicdeadspot,suchasstaticor
multipatharea,interruptstheoriginalsignal,
sometimesthestrongersecondsignalwillbe
selectedautomaticallyuntiltheoriginalonere-
turns.
Thisswappingcanalsooccurasyoudriveaway
fromtheselectedstationandapproachanother
stationofastrongersignal.

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

EmissionControl
System
Intheinterestofclean
air
Pollutionofourenvironmenthasbecomeaprob-
lemthatisofincreasingconcerntoallofus.We
urgeyoutojoinusinoureffortsforcleanerair
incontrollingthepollutantsemittedfromthe
automobile.
Porschehasdevelopedanemissioncontrolsys-
temthatcontrolsorreducesthosepartsofthe
emissionthatcanbeharmfultoourenviron-
ment.YourPorscheisequippedwithsuchasys-
tem.
PorschewarrantstheEmissionControlSystem
inyournewcarunderthetermsandconditions
setforthintheWarrantyBooklet.
You,astheownerofthevehicle,havethe
responsibilitytoprovideregularmaintenance
serviceforthevehicleandtokeeparecordof
allmaintenanceworkperformed.Tofacilitate
recordkeeping,havetheserviceperformedby
authorizedPorschedealers.TheyhavePorsche
trainedtechniciansandspecialtoolstoprovide
fastandefficientservice.

Toassure
efficientoperationofthe
EmissionControlSystem:
I>Haveyourvehiclemaintainedproperlyandin
accordancewiththerecommendationsde-
scribedinyourMaintenanceBooklet.
Lackofpropermaintenance,aswellasim-
properuseofthevehicle,willimpairthefunc-
tionoftheemissioncontrolsystemandcould
leadtodamage.
I>Donotalterorremoveanycomponentofthe
emissioncontrolsystem.
I>Donotalterorremoveanydevice,suchas
heatshields,switches,ignitionwires,valves,
etc.,whicharedesignedtoprotectyourvehi-
cle'semissioncontrolsystem.
Inadditiontoseriousenginedamage,thiscan
resultinafireifexcessrawfuelreachesthe
exhaustsystem.
I>Donotcontinuetooperateyourvehicleifyou
detectenginemisfireorotherunusualopera-
tingconditions.
Parking

/!\Warning!
Dangeroffire.

I>Donotparkoroperatethevehicleinareas
wherethehotexhaustsystemmaycomein
contactwithdrygrass,brush,fuelspillor
otherflammablematerial.
I>Ifyourcarcatchesonfireforanyreason,call
thefiredepartment.
Donotendangeryourlifebyattemptingto
putoutthefire.
Undercoating

/!\Warning!
Dangeroffireandseriouspersonalin-
juries.

I>Donotapplyadditionalundercoatingorrust-
proofingonorneartheexhaustmanifold,ex-
haustpipes,catalyticconvertersorheat
shields.Duringdrivingthesubstanceusedfor
undercoatingcouldoverheatandignite.
I>I>I>
Maintenance,CarCare
179

HowEmissionControlWorks
Whenanautomobileengineisrunning,ituses
energygeneratedthroughthecombustionofa
mixtureofairandfuel.Dependingonwhethera
carisdrivenfastorslowlyorwhethertheen-
gineiscoldorhot,someofthefuel(hydrocar-
bons)maynotbeburnedcompletely,butmay
bedischargedintotheenginecrankcaseorex-
haustsystem.Additonalhydrocarbonsmayenter
theatmospherethroughevaporationoffuelfrom
thefueltank.Thesehydrocarbons(HC),whenre-
leasedintotheair,contributetoundesirablepol-
lution.
Inaddition,carbonmonoxide(CO)andoxidesof
nitrogen(NOx)contributetoengineemissions.
They,too,areformedduringthecombustion
processanddischargedintotheexhaustsys-
tem.
Toreducethesepollutants,yourPorscheis
equippedwithapreciselycalibratedfuelinjection
systemtoassureafinelybalancedair/fuelmix-
tureunderalloperatingconditions.
180Maintenance,CarCare
Oxygensensor
Theoxygensensor,installedintheexhaustpipe
continuouslysensestheoxygencontentofthe
exhaustandsignalstheinformationtoanelec-
troniccontrolunit.Thecontrolunitcorrectsthe
air/fuelratio,sotheenginealwaysreceivesan
accuratelymeteredair/fuelmixture.
Crankcaseventilation
Throughcrankcaseventilation,undesirable
emissionsfromtheenginecrankcasearenot
permittedtoreachtheoutsideatmosphere.
Theseemissionsarerecirculatedfromthe
crankcasetotheairintakesystem.Fromhere
theemissionsmixwiththeintakeairandare
laterburnedintheengine.
Catalyticconverters
Thecatalyticconvertersareefficient"clean-up"
devicesbuiltintotheexhaustsystemoftheve-
hicle.Thecatalyticconvertersburntheundesir-
ablepollutantsintheexhaustgasbeforeitis
releasedintotheatmosphere.
Theexclusiveuseofunleadedfueliscriti-
callyimportantforthelifeofthecatalytic
converters.Therefore,onlyunleadedfuel
mustbeused.
Thecatalyticconverterswillbedamaged
by:
-pushortowstartingthevehicle
-misfiringoftheengine
-turningofftheignitionwhilethevehicleis
movingor
-drivinguntilthefueltankiscompletelyempty
-byotherunusualoperatingconditions.
t>Donotcontinuetooperateyourvehicleunder
theseconditions,sincerawfuelmightreach
thecatalyticconverters.Thiscouldresultin
overheatingoftheconverters.Federallaw
prohibitsuseofleadedfuelinthiscar.

AirFilter
Adirtyairfilternotonlyreducesengineperfor-
mance,butcanleadtoprematureenginewear.
Regularfilterreplacementispartoftheroutine
maintenanceservice.
t>Industyconditions,checkthefilterelement
morefrequentlyandreplaceifnecessary.
ParticleFilter
Thefreshairpassingthroughtheparticlefilter
intothepassengercompartmentisvirtuallyfree
ofdustandpollen.
t>Iftheoutsideairispollutedbyexhaustfumes,
pressthecirculating-airbutton.
Adirtyfiltercanbethecauseofreducedair
flow:
t>Havefilterreplacedbyyourauthorized
Porschedealer.
Regularfilterreplacementispartoftheroutine
maintenanceservice.
AutomaticTransmissionFluid
Thetorqueconverterandthetransmissionare
lubricatedwithAutomaticTransmissionFluid
(ATF).Thefinaldriverequirestransmissionoil.
See"Capacities".
Donottowthecarorruntheenginewithout
ATFinthetransmission.Theautomatictrans-
missionmaybedamagedbyevenatinyspeck
ofdirt,onlyacleanfunnelorspoutmustbe
usedwhenaddingATF.
TheATFandtransmissionoilhastobechecked
andchangedattheintervalslistedinyourMain-
tenanceSchedule.
WerecommendthatyouhavetheATFandtrans-
missionoilchangedatyourPorschedealer,who
hastherequiredlubricantsandthenecessary
fillingequipment.
Ifyoususpectanoilleakinthetransmission,
haveyourauthorizedPorschedealercheckit
outimmediately.
ManualTransmissionOil
Thetransmissionoilhastobecheckedand
changedattheintervalslistedinyourMainten-
anceSchedule.See"Capacities".
Werecommendthatyouhavethetransmission
oilchangedatyourPorschedealer,whohasthe
requiredlubricantsandthenecessaryfilling
equipment.
Ifyoususpectanoilleakinthetransmission,
haveyourauthorizedPorschedealercheckit
outimmediately.
Maintenance,CarCare
183