2003 PORSCHE 911 CARRERA Battery

Electrical
System

Inordertoavoiddamageandfaultsinelectrical
orelectronicsystems,electricalaccessories
shouldbeinstalledatyourauthorizedPorsche
dealer.
[>OnlyuseaccessoriesauthorizedbyPorsche.
/!\Warning!
Riskofshortcircuitandfire.
Replacingfusesorrelayswiththeengine
runningortheignitiononcouldcauseelec-
tricalshock.
[>
Disconnectedthebatteryduringallworkon
theelectricalsystem.Seechapter"Battery".
Relays
Defectiverelaysshouldbechangedonlybyan
authorizedworkshop.
212PracticalTips,EmergencyService
Radiocode
Thetheft-protectioncodeoftheradiomustbe
enteredagainifthebatterywasdisconnected.
Alarmsystem,centrallocking
Thestatusofthecentrallockingandalarm
systemisnotchangedbydisconnectingthe
battery.
Whenthebatteryisdisconnected,thealarmsys-
temceasestofunction.
Overloadprotection
Ifthecentrallockingsystemisoperatedmore
thantentimeswithinaminute,furtheroperation
isblockedfor30seconds.
Loadswitch-offaftertwohours
orfivedays
Iftheignitionkeyisremoved,loadswhichare
switchedonorinstandby(e.g.powerwindows,
luggagecompartmentlighting,interiorlight,
radio)areautomaticallyswitchedoffafterap-
proximately2hours.
Ifthevehicleisnotstartedorunlockedwiththe
remotecontrolwithinfive
days,
theremote
controlstandbyfunctionisswitchedoff(topre-
ventdischargingofthevehiclebattery).
1.Inthiscase,unlockthedriver'sdoorwiththe
keyatthedoorlock.
Leavethedoorclosedinordertopreventthe
alarmsystemfrombeingtriggered.
2.Pressbutton1ontheremotecontrol.
Theremotecontrolisnowactivatedagain.

Emergencyunlockingoftheluggage
compartmentlidandengine
compartmentlid
Ifthebatteryisdischarged,thelidscanbe
openedonlywiththeaidofadonorbattery.
Unlockinglids
1.Usethekeytounlockthevehicleatthedoor
lock.
Leavethekeyinthedoorlock.
2.Removeplasticcoveroverthefusebox.
3.PulloutpositiveterminalAinthefusebox.
4.Useajumper
cabletoconnectthepositive
terminalofthedonorbatterywithpositive
terminalAinthefuse
box.
214PracticalTips,EmergencyService
Note
Ifthevehicle
waslocked,thealarmhornwill
soundwhenthenegativecableisconnected.
5.Usethesecondjumpercabletoconnectthe
negativeterminalofthedonorbatterywith
latchstrikerB.
6.Switchthealarmsystemoffbylockingand
unlockingatthedoorlock.
7.Unlocktheenginecompartmentlidorlug-

gagecompartment
lidwiththeswitch.
8.Disconnectthenegativecablefirst,thenthe
positivecable.
9.PushpositiveterminalAintothefusebox
andpushontheplasticfuseboxcover.

Note
Theenginecannot
bestartedwiththismethod.
Pleaseobservethechapter"EmergencyStarting
withJumperCables"forthispurpose.

Battery
A
Warning!
Riskofshortcircuitandfire.
t>Observeallwarningnotesonthebattery.
t>Disconnectthebatteryduringallworkonthe
electricalsystem.
t>Donotlaytoolsorothermetalobjectsonthe
batteryastheycouldcauseashortcircuit
acrossthebatteryterminal.

Hydrogengasgeneratedbythebattery
couldcauseanexplosion,resultingin
severepersonalinjuries.

t>Donotexposethebatterytoanopenflame,
electricalsparkoralitcigarette.
Risk
ofseverepersonalinjuryanddamage
tothefabric,metalorpaint.

t>Weareyeprotection.
t>Donotallowbatteryacidtocomeincontact
withyourskin,eyes,fabricorpaintedsur-
faces.
t>Ifyougetelectrolyte,whichisanacid,inyour
eyesoronyourskin,immediatelyrinsewith
coldwaterforseveralminutesandcalladoc-
tor.
t>Spilledelectrolytemustberinsedoffatonce
withasolutionofbakingsodaandwaterto
neutralizetheacid.

Batteryposts,terminalsandrelatedacces-
soriescontainleadandleadcompounds,
chemicalsknowntotheStateofCalifornia
tocausecancerandreproductiveharm.

t>Alwaysprotectyourskinbywashingthor-
oughlywithsoapandwater.
Note
Iftheremainingfuelislessthanapprox.1/3of
theoveralltankcapacitywhilethebatteryisdis-
chargedordisconnected,incorrectinformation
willbedisplayedwhen
thebatteryischarged
orreconnected.

Thefuellevelgaugemayindicate
more
fuel
thanisactuallyinthetank.
Therangeonremainingfueldisplayedbytheon-
boardcomputermaybehigherthaninreality.
t>Inthiscase,inordertoensurethatgauges
arepreciseandthatyoudonotrunoutof
fuel,youshouldfillupyourcarwithfuel.
Chargestate
Awellchargedbatterywillnotonlypreventstart-
ingproblemsbutwillalsolastlonger.

Inordertoavoiddischargingthebattery
unintentionally:

t>Curtailunnecessarypowerconsumption,par-
ticularlyincitytrafficorwhentravellingshort
distancesonly.
t>Alwaysremovetheignitionkeywhenleaving
thecar.
t>AvoidusingthePorscheCommunication
Managementsystemwhentheengineisnot
running.
t>t>t>
PracticalTips,EmergencyService
215

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.

A.Warning!
Hydrogengasgeneratedbythebattery
couldcauseanexplosion,resultingin
severepersonalinjuries.

I>Chargebatteryinawellventilatedarea.
I>Neverchargeafrozenbattery.Itmayexplode
becauseofgastrappedintheice.Allowa
frozenbatterytothawoutfirst.
I>Ifyougetelectrolyte,whichisanacid,inyour
eyesoronyourskin,immediatelyrinsewith
coldwaterforseveralminutesandcalladoc-
tor.
Slow
battery
charging
1.Payattentiontoallwarningsandfollowin-
structionsthatcomewithyourbattery
charger.
2.Whencharging,ensureadequateventilation.
3.Removebattery(see"Removingbattery").
4.Allventcapsshouldbeopen.
Thefluidlevelshouldmeettheindicatormark
ineachcell.
5.Ensurethatchargerisswitchedoff-danger
ofshortcircuit!
6.Connectchargercables.

Chargercablesmustbeconnected
POSITIVE1+)toPOSITIVE1+)and
NEGATIVE(-)toNEGATIVE
I-).
7.Switchoncharger.
Normally,abatteryshouldbechargedatno
morethan10percentofitsratedcapacity.
Ratedcapacityofthebatteryinyourvehicle
islistedonthebatteryhousing.
8.Aftercharging,turnoffchargeranddiscon-
nectchargercables.
9.Tightentheventcapsandreinstallbattery
(see"Installingbattery").

Winteroperation

Duringthewintermonths,batterycapacitytends
todecreaseastemperaturesdrop.
Additionally,morepowerisconsumedwhile
starting,andtheheadlights,heater,rearwindow
defogger,etc.,areusedmorefrequently.
I>LetyourPorschedealertestthebattery'sca-
pacitybeforewintersetsin.

Replacingbattery

Theservicelifeofthebatteryissubjecttonor-
malwear;itdependsgraetlyoncare,climatic
conditions,anddrivingconditions(distances,
loads).
I>OnlyuseanoriginalPorschebattery,withthe
correctpartnumber,asareplacement.
I>Pleaseobservethedisposalinstructionsfor
batteries.
I>I>I>
PracticalTips,EmergencyService
217

Removingthebattery

Therequisitetoolisinthetoolkit.
Thebatteryislocatedintheluggagecompart-
mentunderablackplasticlid.
/!\.Warning!
Riskofdamagetoalternatorandelectronic
controlunits.
I>Donotdisconnectthebatterywhiletheen-
gineisrunning.
Thisalsoappliestocarsequippedwithabat-
terymainswitch.
I>Neverdrivethecarwithadisconnectedbat-
tery.
Risk
of
caustic
burnsfromescapingacid.

I>Keepventcapsontoavoidspillage.
I>Donottiltthebatterywhenremovingandin-
stallingit.
218PracticalTips,EmergencyService
1.Switchoffengineandallelectricalloads.
2.Openturn-locksA.
Removeplasticlid.
3.PulloffcentralventhoseB.
4.Important:disconnectthenegative(-)ground
wirefirst,andthenthepositive(+)cable
-

dangerofshortcircuit!
5.UnscrewfasteningscrewC.
6.Removebattery.

Installingthebattery

1.Putbatteryin.
2.ScrewinfasteningscrewC.
3.Important:connectthepositive(+)cable
first,andthenthenegative(-)groundwire
-

dangerofshortcircuit!
4.PushoncentralventhoseB.
5.Fitplasticlid.Lockturn-locksA.
6.Entertheradiocodeagain.

Replacingtheremote-controlbattery
Aweakbatterymayberecognizedbythe
clearlyreducedactionrangeoftheremotecon-
trolorwhenthelight-emittingdiode2inthe
keygripnolongerflasheswhentheremotecon-
trolisoperated.
1.Usingyourfingernailorasmallscrewdriver,
carefullyliftoffthecoverofthekeygrip.
2.Replacebattery(observepolarity).
Asparebattery(LithiumCR2032,3volts)is
availableatyourauthorizedPorschedealer.
3.Replacecoverandpresstogetherfirmly.
Note
Anydisposalregulationsforbatteriesmustbe
observed!
PracticalTips,EmergencyService
219

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.