2007 PORSCHE BOXSTER brakes

PorscheStabilityManagement
(PSM)
GeneralinformationregardingPSM
PSMisanactivecontrolsystemforstabilizationofthevehicleduringextremedrivingmaneuvers.
Warning!
Riskofanaccident,resultinginseriouspersonalinjuryordeath.Theincreasedcontrolthatisprovidedshouldnotinduceyoutotakegreaterriskswithyoursafety.Thelimitsdictatedbythelawsofphysicscannotbeovercome,evenwithPSM.Theriskofaccidentsduetoinappropriatespeedcannotbereduced,evenbyPSM.Thedriverbearstheresponsibilityforalldrivingmaneuvers.
Adaptyourdrivingstyletotheprevailingroadandweatherconditions.
Obeyalltrafficlaws.
AdvantagesofPSM
–Superiortractionandlane-holdingabilityinalldrivingsituations-evenonroadsurfaceswithvaryingfriction.
–Thesystemcompensatesforundesiredvehi-clereactions(Ferrariaeffect)whenthedriverreleasestheacceleratorpedalorbrakeson
bends.Thiscompensationfunctionsuptothemaximumlateralacceleration.
–PSMactivelystabilizesthevehicleduringdynamicdrivingmaneuvers(e.g.rapidsteeringmovements,duringlanechangesoronalternatingcurves).
–Improvedbrakingstabilityincurvesandondifferentorvaryingroadsurfaces.
Readinessforoperation
PSMisswitchedonautomaticallyeverytimeyoustarttheengine.
Function
Sensorsatthewheels,brakes,steeringsystemandenginecontinuouslymeasure:
–Speed
–Directionoftravel(steeringangle)
–Lateralacceleration
–Rateofturnabouttheverticalaxis
PSMusesthesevaluestodeterminethedirectionoftraveldesiredbythedriver.PSMintervenesandcorrectsthecourseiftheactualdirectionofmotiondeviatesfromthedesiredcourse(steering-wheelposition):Itbrakesindividualwheelsasneeded.Inaddition,theenginepowermaybemanipulatedinordertostabilizethevehicle.
TheeventsbelowinformthedriverofPSMcontroloperationsandwarnhimtoadapther/hisdrivingstyletotheroadconditions:
–Themulti-functionalinformationlightontheinstrumentpanelflashes.
–Hydraulicnoisescanbeheard.
–Thevehicledeceleratesandsteering-wheelforcesarealteredasthePSMcontrolsthebrakes.
–Reducedenginepower.
–Thebrakepedalpulsatesanditspositionischangedduringbraking.Inordertoachievefullvehicledeceleration,footpressuremustbeincreasedafterbeginningofthebrakepedalpulsing.
ExamplesofPSMcontroloperations
–Ifthefrontwheelsofthevehicledriftonabend,therearwheelontheinsideofthebendisbrakedandtheenginepowerisreducedifnecessary.
–Iftherearofthevehicleswingsoutonabend,thefrontwheelontheoutsideofthebendisbraked.
Controls,Instruments71

ParkingAids
ParkingAssistant(ParkAssistant)
Functionoftheparkingassistant
Whenthedriverbacksup,theparkingassistantsystemindicatesthedistancebetweenthecarandalargeobstaclebehindit,bymeansofsignaltones.
Danger!
Riskofseriouspersonalinjuryordeath.ParkAssistantcannotdetectsmallobjectssuchaschildrenandpets.Despiteuseoftheparkingassistantsystem,thedriverisstillresponsiblefortakingduecareandassessingobstacleswhenbackingup.
Makesurethatnopersons,especiallysmallchildren,animalsorobstaclesarewithinthemaneuvringarea.
Theparkingassistantsystemisactivatedautomati-callywhenreversegearisselectedandtheignitionison.
Note
Beawarethattheparkingassistantsystemisnotswitchedonifthecarrollsbackwardwithoutreversegearbeingengaged.
Ultrasoundsensors
Sensors
Fourultrasoundsensorsintherearbumpermeasurethedistancetotheclosestobstacle.
–Rangemiddlesensorsaround60in./150cm
–Rangeoutersensorsaround24in./60cm
Obstaclescannotbedetectedinthe“blind”sensorarea(e.g.neartheground).
Note
Thesensorsmustalwaysbekeptfreeofdust,iceandsnowinordertoensurethattheyarefullyfunctional.
Caution!
Toavoiddamagingthesensors:
Maintainsufficientdistancewhencleaningwithsteam-jetunits.
Signaltones/function
Whenreversegearisselected,theparkingassistantconfirmsthatitisswitchedonbyissuingashortsignaltone.Adetectedobstacleissignalledbyanintermittenttone.Theintervalsdecreaseastheobstacleisapproached.Acontinuoustonesoundswhenthedistancebecomeslessthanonefoot.Thiscontinuoustonecanstopiftheobstacleisapproachedcloserthanonefoot.Theradiovolumeshouldnotbesoloudastodrownoutthesignaltones.
Limitsofultrasonicmeasurement
Theparkingassistantsystemcannotdetect:
–sound-absorbingobstacles(e.g.winteroperation,powdersnow),
–sound-reflectingobstacles(e.g.glasssurfaces,flatpaintedsurfaces)
–andverythinobstacles.
Otherultrasoundsources(e.g.pneumaticbrakesofothervehicles,jackhammers)caninterferewithdetectionofobstacles.
Controls,Instruments77

SelectorLeverPositions
P-Parkinglock
Engageparkinglockonlywhenvehicleisstationary.
Engageparkinglockafterapplyingthehandbrakeandreleaseitbeforereleasingthehandbrake.
TheignitionkeycanbewithdrawnonlyinselectorleverpositionP.
R-Reverse
Selectonlyifcarisstationaryandthebrakeisapplied.
N-Neutral
SelectorleverpositionNmustbeselectedfortowingorincarwashes,forexample.
Selectthedesiredpositionformovingoff(D,MorR)onlywhentheengineisidlingandwhiledepressingthebrakepedal.
D-Automaticselectionmode
Modeofoperation
SelectpositionDfor“normal”driving.Thegearsareshiftedautomaticallyaccordingtotheacceleratorpositionandspeed.
Dependingonthewaythevehicleisdrivenandontheresistance(e.g.uphill),thegear-changingpointsareshiftedtowardshigherorlowerengine-speedranges.Theacceleratorposition,drivingspeed,enginespeed,longitudinalandlateralaccelerationandtheroadprofileallhaveaninfluenceonthegear-changingcharacteristic.
Unwantedupwardshifts,e.g.beforebends,arepreventedbyswiftlyreleasingtheacceleratorpedal.
Dependingonlateralacceleration,upwardshiftsonbendsarenotmadeuntiltheengine-speedlimitisreached.
Underbraking,anddependingontheamountofdeceleration,theTiptronicshiftsdownearlier.Forsubsequentcornering,therightgearisengagedwhenpressureisappliedtothebrakesbeforethebend.Thebendistakenintherightgear,andwhenyouaccelerateoutofthebendyoudonothavetoshiftdown.
Sportmodeswitchedon
Pleaseobservethechapter”SPORTMODE”onpage70.
IftheSportmodeprogrammeisswitchedon,Tiptronicswitchestoasportygear-changingmapandshortenstheshiftingperiods.
InitialDrive-off
In2ndgear,thevehicledrivesoffwiththethrottleonlyslightlyopen.Driveoffin1stgearwiththethrottleopenwiderorwhentheengineiscold.
Shiftinggearonthesteeringwheel
Withthetoggleswitchesonthesteeringwheel,youcanchangetemporarilyfromautomaticselectionmodeDtomanualmodeM.
Advantages:
–Shiftingdownbeforebendsandonenteringbuilt-upareas.
–Shiftingdownondownwardslopes(enginebraking).
–Shiftingdownforbriefspurtsofacceleration.
–Selecting1stgearformovingoff.
Themanualselectionmoderemainsengaged:
–forcornering(dependingonthelateralacceleration)andoverrunning,
–whenthevehicleisstationary(e.g.atajunction).
Thesystemleavesmanualselectionmode:
–automaticallyafterapprox.8seconds(unlesscorneringoroverrunning),
ShiftingGear189

BrakeFluidLevel
Useofbrakeuid
Pleaseobservethechapter”EXERCISEEXTREMECAUTIONWHENWORKINGONYOURVEHICLE”onpage208.
Useonlynew(unused)OriginalPorschebrakeuid.
Warning!
Brakeuidishazardoustoyourhealth,andmaybefatalifswallowed.Brakeuidalsoattackspaintwork.
Keepbrakefluidoutofchildren’sreach.
Takecarewhiletoppingoffbrakefluidnottosoiltheluggagecompartmentoritemsofluggage.Checkingthebrakeuidlevel
Thereservoirforthehydraulicbrakingandclutchsystemsisinthefrontluggagecompartment.
1.OpenandremovecoverflapA.
2.Regularycheckthebrake-fluidlevelonthetransparentexpansiontankthroughthewindowB.Thefluidlevelshouldalwaysliebetweenthe“Min”and“Max”marks.
Aslightdecreaseinthefluidlevelduetowearandautomaticreadjustmentofthediscbrakesisnormal.If,however,thefluidlevelfallsmarkedlyorbelowthe“Min”mark,thebrakingsystemmayhavedevelopedaleak.
HavethebrakingsystemcheckedimmediatelyatanauthorizedPorschedealer.
Changingthebrakeuid
Brakefluidabsorbsmoisturefromtheairovertime.Thisaccumulationofwaterlowerstheboilingpointand,undercertainoperatingconditions,canaffectthebrakingaction.Thereforehavethe
Maintenance,CarCare217

CarCareInstructions
Long-termmaintenanceofvalue
Pleaseobservethechapter”EXERCISEEXTREMECAUTIONWHENWORKINGONYOURVEHICLE”onpage208.
Regularandcorrectcarehelpstomaintainthevalueofyourcarandisalsoaprecondi-tionfortheNewVehicleWarrantyandtheAntiCorrosionWarranty.
YourauthorizedPorschedealerhasspeciallydevelopedcar-careproductsfromthePorscheprogramavailableeithersinglyorascompletecar-caresets.Theywillbepleasedtohelpyouselectsuitableproducts.
WhetheryouusePorscheproductsorothercommerciallyavailablecleaningagentsrstmakesureoftheircorrectapplication.
APorschethatiswell-caredforcanlooklikenewforyears.Italldependsontheamountofcaretheowneriswillingtogivethecar.
Warning!
Riskofseriouspersonalinjuryordamagetothevehicleorproperty.Cleaningagentsmaybehazardoustoyourhealth.Mostchemicalcleanersareconcentrateswhichrequiredilution.Highconcentrationsmightcauseproblemsrangingfromirritationtoseriousinjuryaswellasdamagetoyourvehicle.
Keepcleaningagentsoutofreachfromchildren.
Observeallcautionlabels.
Alwaysreaddirectionsonthecontainerbeforeusinganyproduct.Thesedirectionsmaycontaininformationnecessarytoavoidpersonalinjury.
Donotusefuel,kerosene,naphtha,nailpolishremoverorothervolatilecleaningfluids.Theymaybetoxic,flammableorhazardousinotherways.Onlyusespotremovingfluidsinawellventedarea.
Donotcleantheundersideofchassis,fenders,wheelcovers,etc.,withoutprotectingyourhandsandarmsasyoumaycutyourselfonsharp-edgedmetalparts.
Moistureandroadsaltonbrakesmayaffectbrakingefficiency.
Testthebrakesaftereachvehiclewashing.
Carwashing
Washing
Thebestmethodofprotectingyourcarfromthedamagingeffectsoftheenvironmentisfrequentwashingandtheapplicationofapreservative.Theundersideofyourvehicleshouldalsobethoroughlywashedforcinders,saltorsandingatwinter’send.
Thelongersalt,roaddustandindustrialdust,deadinsects,birddroppingsorsubstancesfromtrees(resin,pollen)areallowedtoremainonthebodywork,themoreseriousistheirharmfuleffect.
Newcarsshouldbewashedcarefullywithplentyofclearwatertoprotectthenewpaintwork.Darkpaintfinishesshowupthesmallestofsurfacedamage(e.g.,scratches)morereadilythanlightercolors.
Darkcolorsarealsomoresusceptibletoscratch-ingbecauseofthecompositionoftheirpigmentsandrequireparticularlycarefulpaintcare.
Donotwashyourcarinbrightsunlightorwhilethebodyworkisstillhot.
Whenwashingbyhand,useabundantwater,asoftspongeorwashbrush,andPorschecarshampoo.
Beginbysprayingthebodythoroughlywithwatertorinseawayloosedirt.
Maintenance,CarCare233

Afterwashing,rinsethecarwithplentyofwaterandthendrywithachamoisleather.Donotusethesamechamoisleatherfordryingasyouuseforcleaningthewindshieldandwindows.
Warning!
Moisturewhichgetsontothebrakesduringacarwashcanreducebrakingefciencyormakethebrakespullunevenlywhichcouldincreasethedangerofanaccident,causingseriouspersonalinjuriesordeath.
Alwaysapplythebrakesafewtimesafterwashingthecartotestbrakingefficiencyanddrythebrakediscs.Whendoingthis,takecarenottohamperotherroadusersbehindyou(trafficconditionspermitting).
Convertibletop
Neverremovesnowandiceusingasharpedgedobject.
Incorrectcareandtreatmentcandamagetheconvertibletopandcauseleaks.AnyrepairworkcanbedonebyyourauthorizedPorschedealer.
Note
Nofoldingtopis100%leakproof.
Duetotheconstantchangingofloadsandstrainstowhichacarissubjecttowhendrivingonroads,
minorwindnoiseandseepageatjointsbetweenthetop,bodyanddoorsonconvertibletopscannotbecompletelysealedincertainareas.Thereforesmallleaksareconsiderednormalforthesemodels.Inaddition,yourconvertibletopshouldnotbewashedinacarwash.Thetopmayexperiencedamagebythebrushesormayexperienceleaksduetothehighpressurewaterstreamsdirectedinareaswhichwouldnotencounterwaterinnormaldrivingconditions.
Cleaning
Caution!
Riskofdamageduetothecleaningjetofthehigh-pressurecleaningequipmentorhotwaxtreatment.
Donotcleantheconvertibletopwithhigh-pressurecleaningequipment.
Donotusethehotwaxtreatment.
Donotwashtheconvertibletopeachtimethecariswashed.Itisusuallysufficienttosprayorwashitwithcleanwater.
Brushdustofftheconvertibletopinthedirectionoftheweaveusingasoftbrush.
Onlyifthereisheavydirt,wettheconvertibletopwithlukewarmwaterandthePorscheWash-Shampoo&convertible-topcleaner,usingaspongeorsoftbrush,andrubgently.RinseWash-Shampoo&convertible-topcleanerthoroughlyofftheconvertibletopwithcleanwater.
Afterwashingit,treattheconvertible-topcoveratleastonceayearwiththespecialPorscheconvertible-topcareproduct.Donotallowtheconvertible-topcareproducttocomeintocontactwithpaintorwindows.Ifitdoes,removeimmediately.
Ifthereisleakageintheconvertible-topcoveroratitsseamsorfolds,thespecialPorscheconvertible-topcareproductcanbeused.
Pleasenotetheinformationonthecontainer.
Removebirddroppingsimmediatelysincetheacidinthemwillmaketherubberswellandtheconvertibletopwillbecomeleaky.
Openconvertibletoponlywhenitiscompletelydry,otherwisedampstainsandscrubmarksmayoccurwhichcannotberemoved.
Trytoremovespotsfromtheconvertible-topcoverbyrubbingcarefullywithasoftrubbersponge.
Automaticcarwashes
Optionaladd-onpartsorpartswhichprojectbeyondthecontoursofthevehiclemaybe
234Maintenance,CarCare

Headlights,lights,interiorandexterior
plasticparts,adhesivelms
Useonlycleanwaterandalittledishwashingdetergenttocleanlightlenses,plasticheadlightlenses,plasticpartsandsurfaces.Donotcleanwhendry.Useasoftspongeorasoft,lint-freecloth.Gentlywipethesurfacewithoutapplyingtoomuchpressure.ThePorscheinsidewindowcleanerisalsosuitableforcleaningplasticsurfaces.Followthecleaninginstructionsonthecontainer.Neveruseotherchemicalcleanersorsolvents.
Rinsecleanedsurfaceswithclearwater.
Lightalloywheels
Pleaseobservethechapter”WASHING”onpage233.
Warning!
Dangerofaccidentresultinginseriouspersonalinjuryordeathifcleaningagents(e.g.wheelcleaningagents)comeintocontactwiththebrakediscs.Theresultinglmonthebrakediscscanimpairbrakingperformance.
Makesurethatnocleaningagentcomesintocontactwiththebrakediscs.
Ifcleaningagenthascomeintocontactwiththebrakediscs,thoroughlycleanthebrakediscswithastrongjetofwater.
Payingattentiontoanyroadusersbehindyou,drythebrakediscsbyapplyingthebrakesatshortintervals.
Pittingmayoccurifmetallicparticleswhichcausecontactcorrosion(e.g.brassorcopperinbrakedust)areallowedtoremainonthealuminumfortoolong.
Ifpossible,washthewheelswithaspongeorwashbrushabouteverytwoweeks.Inareaswheresaltisspreadonwinterroadsorthereisalotofairborneindustrialdust,itisbesttocleanthewheelsweekly.ThePorscheLightAlloyWheelCleaner(ph-value9.5)canbeusedforthispurpose.Iftheph-valueofthedetergentisincorrect,theprotectivecoatingonthewheelswillbedestroyed.
Polisheswhichdissolveoxides,suchasthosefrequentlyusedforothermetals,orabrasivetoolsoragentsareunsuitablebecausetheybreakdowntheoxidelmoftheprotectivecoatingandwillcausediscolorationofthewheel.
Everythreemonths,aftercleaning,coatthewheelswithacarwaxornon-corrosivegrease(vaseline).Usingacleancloththoroughlyrubthegreaseintothesurface.
Leather
Characteristicsandspecialfeatures
Thenaturalsurfacemarkingsofleather,e.g.creases,healedscars,insectstingmarks,structuraldifferencesandslightvariationsinshadeandgrainaddtotheattractivenessofthenaturalleatherproduct.
Aspecialmentionmustbemadehereofnaturalleather.Fornaturalleather,carefullyselectedhidesofthehighestqualityareused.Itisnotcoveredcompletelywithdyeonproduction.“Nature’ssignature”isthereforeeasilyrecognizable.Thisfinematerialisdistinguishedbyanoutstandingseatingcomfort,specialsupplenessandatypicalpatina.
Leathercareandtreatment
Cleanalltypesofleatherregularlytoremovefinedustusingasoft,damp,whitewoolenclothoracommerciallyavailablemicrofibercloth.
RemoveheavycontaminationwithPorscheleathercleaner.Pleasealwaysfollowtheinstructionsforusegivenonthecontainers.
Causticcleanersandhardcleaningobjectsmustnotbeused.
Perforatedleathermustundernocircum-stancesgetwetonitsreverseside.
238Maintenance,CarCare

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,haveyourvehicletowedtothenearestPorscheortiredealertohaveyourvehicleortire(s)inspected.
Continuingtooperatethevehiclewithoutcorrectioncouldresultinalossofcontrolandseriouspersonalinjury.
Example
UniformTireQualityGrading
Qualitygradescanbefoundwhereapplicableonthetiresidewallbetweentreadshoulderandmaximumsectionwidth.
AllpassengercartiresmustconformtoFederalSafetyRequirementsinadditiontothesegrades.
Treadwear
Thetreadweargradeisacomparativeratingbasedonthewearrateofthetirewhentestedundercontrolledconditionsonaspecificgovernmenttestcourse.Forexample,atiregraded150would
PracticalTips,EmergencyService243