2003 PORSCHE 911 CARRERA ECU

WheelBolts
/!\Warning!
Riskofwheelboltbreakageandwheelsep-
aration,resultinginseverepersonalinjury
ordeath.
[>
Followallinstructionsconcerningwheelbolts.
208PracticalTips,EmergencyService
[>Alwayscleanthewheelboltsbeforefitting.
[>ApplyathincoatofOptimolyTA(aluminium
paste)onthethreadandbetweenthebolt
headandmovablesphericalcapring(arrows).
Thebearingsurfaceofthesphericalcap
facingthewheelmustnotbegreased.
[>Replacedamagedwheelbolts.
OnlyusetheOriginalPorschewheelbolts
speciallydesignedforthisvehicletype.
Note
Onvehicleswith17mmspacerringsonthe
rearaxle,thewheelsaresecuredwithnuts.

Tighteningtorque

Tighteningtorqueofwheelboltsandwheelnuts:
130Nm.

WheelSecuringBolts

Thewrenchsocketforthewheelsecuringbolts
isinthetoolpocket.
Toloosenortightenthewheelboltwithanti-theft
protection,awrenchsocketwiththeappropriate
codingmustbeusedbetweenthewheelbolt
andthewheel-boltspanner.
[>Whenpositioningthewrenchsocket,ensure
thatitengagesfullyintheteethofthewheel
bolt.
Ifthewheelshavetoberemovedatthework-
shop,pleasedonotforgettohandoverthe
wrenchsocketforthewheelsecuringbolts
alongwiththecarkey.

Batterycare
[>
Ensurethatbatteryissecurelymounted.
[>Keepterminalsandconnectionscleanand
properlytightened.
Corrosioncanbepreventedbycoatingthe
terminalsandconnectionswithpetroleumjelly
orsiliconespray.
[>
Ensurethatventcapsaresecurelytightened
topreventspillage.
216PracticalTips,EmergencyService

Checkingtheelectrolytefluidlevel

Generally,theelectrolytelevelmustbechecked
moreofteninsummerthaninthewinter,and
moreoftenwhendrivinglongdistances.
[>Whenaddingwater,useonlycleanvessels.
Innocasemayalcohol(e.g.windowcleaner
residues)bepermittedtoenterthebattery.
[>
Unscrewandopenthefillerventcapsofeach
cell.
Withthecarhorizontal,thefluidlevelshould
meettheindicatormarkineachcell.
[>
Ifnecessary,topupwithdistilledwater.

Donotuse
acid.
Onlyfilluptothemark,otherwisetheelectro-
lytewilloverflowwhenthebatteryisbeing
chargedandcausedamage.

Batterycharging

Automotivebatteriesloosetheirefficiencywhen
notinuse.
Thechargeavailableinyourbatterycanbe
measuredwithabatteryhydrometer.
Werecommendthatthebatteryvoltagebe
testedbyyourPorschedealerwhohastheap-
propriateequipment.
Ifthecarisnotdrivenforprolongedperiods,
thebatterymustbechargedatleastevery6
weeks.
Adischargedbatteryallowsrapidformationof
sulfates,leadingtoprematuredeteriorationof
theplates.

EmergencyStartingwithJumper
Cables
Ifthebatteryisdischarged,e.g.inwinteror
afterthecarhasbeenparkedforalongtime,
thebatteryofanothercarcanbeusedforstart-
ingwiththehelpofjumpercables.
Makesurethevoltageofbothbatteriesisthe
same.
Thecapacity(Amperehours,Ah)ofthebooster
batterymustnotbesubstantiallylessthanthat
ofthedischargedbattery.
Thedischargedbatterymustbecorrectlycon-
nectedtothevehicle'selectricalsystem.
Seethechapter"Battery"and"Emergencyun-
lockingoftheluggagecompartmentlidanden-
ginecompartmentlid".
Note
[>
Donottrytostartthecarbypushingortow-
ing.Damagetothecatalyticconvertersand
othercomponentsofthecarmayresult.
220PracticalTips,EmergencyService
/!\Warning!
Riskofdamageandseriouspersonalinjury
duetoshortcircuit.
[>
Useonlyjumpercablesofadequatediameter
cross-sectionandfittedwithcompletelyinsu-
latedalligatorclips.
[>
Followallwarningsandinstructionsofthe
jumpercablemanufacturer.
[>
Whenconnectingjumpercables,makesure
thattheycannotgetcaughtinanymoving
partsintheenginecompartment.
Thejumpercablesmustbelongenoughso
thatneithervehiclesnorcablestouchanother.
[>
Thevehiclesmustnotbeincontact,other-
wisecurrentmightflowassoonastheposi-
tiveterminalsareconnected.
[>
Thecableclampsmustnotbeallowedtocon-
tacteachotherwhenoneendofthejumper
cablesareconnectedtoabattery.
[>Ensurethattoolsorconductivejewellery
(rings,chains,watchstraps)donotcomeinto
contactwithlivepartsofthevehicle.
[>Improperhook-upofjumpercablescanruin
thealternator.

Dangerofcaustic
burns.
[>
Donotleanoverthebattery.

Dangerofgasexplosion.

[>Improperuseofboosterbatterytostartave-
hiclemaycauseanexplosion,resultingin
severepersonalinjuries.
[>Keepsourcesofignitionawayfromthebat-
tery,e.g.openflame,burningcigarettesor
sparkingduetocablecontactorwelding
work.
[>
Adischargedbatterycanfreezeevenat
-lOOCj14°F.
Beforeconnectingjumpercables,afrozen
batterymustbethawedout.

Installing

1.Insertheadlightintoguiderailsandpushfully
intothewing.
2.Pushheadlighttotherearandatthesame
timeturnthesocketwrenchuntilitpoints
horizontallytotherearC.
Theheadlightlockingdevicemustperceptibly
andaudiblyengage.
3.Checkheadlightforafirmseating,e.g.by
pullingitintheareaofthefoglight.
4.Insertrubberplugintotheunlockingopening
andsecurethecarpeting.
Checkthefunctionofalllights.
I>I>I>
PracticalTips,EmergencyService
225

0
1.Removecapinthewheelhousinglinerwith
thescrewdriver.
2.Insertscrewdriverintotheopeninginthe
wheelhousinglineratrightanglestotheside
markerlighthousing.
Bypressingwiththescrewdriver,disengage
thesecuringspringofthesidemarkerlight
housing.
230PracticalTips,EmergencyService
ChangingBulbintheSide
MarkerLight
~
3.Removesidemarkerlightandundobulb
holder(bayonetlock).
4.Removebulbfromtheholderandreplace.
Insertholder.
5.Insertthelighttabs(arrowA)intothewingat
thefront.
Engagesecuringspring(arrowB)inthewing.
6.Presscapintothewheelhousingliner.
Checkoperationofthelight.

LicensePlateLights
Changingbulb
1.UndobothscrewsAandremovelight.
2.Pushrubbercoveringback,removedefective
bulbfrombetweenthecontactspringsand
replace.
3.Reassembleinreverseorder.
Checkoperationofthelight.

Luggage
CompartmentLight,
EngineCompartmentLight,
FootwellLights
Changingbulb
1.Withascrewdriver(arrow),carefullypress
lightoutofthecutoutinthelining.
2.Removedefectivebulbfrombetweenthe
contactspringsandreplace.
3.Insertthelightintothecutoutfirstfromone
sidethenfromtheother.Checkoperation.
DoorGuard/KerbLight
Changingbulb
1.Withascrewdriver(arrow),carefullypushout
thelight.
2.Pullbulbholderoutoflighthousing.
Removedefectivebulbandreplace.
3.Installbulbholderandinsertlight.
PracticalTips,EmergencyService
233

~
RaisedBrakeLights
Changingbulb
Beforeremovingthebrakelightintherear
spoiler,thelattermustfirstbemanuallyex-
tended.
Seethechapter"RetractableRearSpoiler".
1.Leveroutright-handsegmentofthelenswith
thescrewdriverblade(arrow).
2.Turnlockoflighthousingcounterclockwise
byapprox.90°,andremovelight.
3.Disengageall6securingtabs(arrow)ofthe
bulbholder
Removebulbholder,takeoutdefectivebulb
andreplace.
4.Reassembleinreverseorder.
Checkoperationofthelight.
PracticalTips,EmergencyService
235

AdjustingHeadlights

Seecautionon"ReplacingBulbs..
Adjustment

Theadjustmentismadewiththevehicleready
todriveandthefueltankcompletelyfilled.
Thedriver'sseatmustbeloadedbyapersonor
a165Ibs.(75kg)weightandthetirepressures
mustmeettheprescribedvalues.
Afterbeingloaded,thecarmustberolledafew
meterssothatthesuspensioncansettle.
236PracticalTips,EmergencyService
Forcheckingtheheadlightadjustment,theverti-
calpositionofthecutoffofthelowbeam(see
fig.)hastobeprojectedonaverticalscreen
(wall)indistanceof7.5mfromthefrontlensof
theheadlamp.
Thecorrectpositionofthecutoffis5cmat
7.5m(0.4°)belowahorizontalline,xcmfrom
groundtothecenteroftheheadlamplens.
Lateraladjustmentoftheheadlightsshouldbe
carriedoutataspecialistworkshopwithanopti-
caladjustmentunit.
Distance
Visualaimshallbeperformedatnotlessthan
7.5m(thisvalueisaroundeddownconversion
fromthe25-footdistancetypicaloffieldaim
usingascreen).The7.5mdistanceis
measuredfromtheheadlamplenstotheviewing
screen.