2004 PORSCHE 911 GT3 Owners Manual

Electrical System

In order toavoid damage andfaults inelectrical or
electronic systems,electrical accessories should
be installed atyour authorized Porschedealer.
~ Only useaccessories authorizedbyPorsche.

A
Warning!
Risk ofshort circuit andfire.
Replacing fusesorrelays withtheengine
running orthe ignition oncould cause elec-
trical shock.

~ Disconnected thebattery duringallwork on
the electrical system.
Please observe thechapter "BATTERY" on
Page 155.

Relays

Defective
relays
shouldbechanged onlybyan
authorized workshop.
Practical Tips,Emergency Service
Alann
system,
centrallocking

The status ofthe central locking andalarm system
is not changed bydisconnecting thebattery.
When thebattery isdisconnected, thealarm sys-
tem ceases tofunction.

Overload protection

If the central locking systemisoperated more
than tentimes within aminute, furtheroperation is
blocked for30seconds.
load
switch-off aftertwohours
or five days

If the ignition keyisremoved, loadswhich are
switched onorinstandby (e.g.power windows,
luggage compartment lighting,interiorlight,radio)
are automatically switchedoffafter approximately

2 hours.

If the vehicle isnot started orunlocked withthere-
mote control within
fivedays,
theremote control
standby function isswitched off(toprevent dis-
charging ofthe vehicle battery).
1. Inthis case, unlock thedriver's doorwiththe
key atthe door lock.
Leave thedoor closed inorder toprevent the
alarm system frombeing triggered.
2. Press button 1on the remote control.
The remote controlisnow activated again.

A-Diagnostic socket

Replacing fuses

In order toprevent damage tocables andconsum-
ers inthe electrical systemduetoshort circuits
and overloads, theindividual circuitsareprotect-
ed byfuses.
The fuse boxisat lower leftinthe driver's footwell
and isprotected withaplastic cover.
A
-Plastic gripper

B -
Spare fuses

1. Before replacing afuse, switch offallelectrical
consumers andremove theignition key.
2. Toopen, pullthecover offatthe finger hole

(arrow).

The
fuse plan
and
instructions foremer-
gency unlocking ofthe luggage compart-
ment lidand engine compartment lid
can
be found onthe inside ofthe cover. 3.
Tocheck orreplace afuse, remove itfrom the
spring clipusing theplastic gripper
A.

A blown fuseindicates anoverload inthe cir-
cuit and canbeidentified bythe melted metal
strip.
4. Replace onlywithfuses ofthe same rating.
Spare fusesBare inthe lowest section ofthe
fuse box.

Important note

~ Ifafuse blows repeatedly, pleaseimmediately
consult anauthorized Porschedealer,sothat
the short circuit canbelocated andcorrected.
~ Never tryto"repair" fuses:youmay cause se-
rious damage toother partsofthe electrical
system.

~~~

Practical Tips,Emergency Service

Emergency unlockingofthe luggage
compartment lidand engine
compartment lid

Ifthe battery isdischarged, thelids can beopened
only withtheaidofadonor battery.
Unlocking lids
1. Use thekey tounlock thevehicle atthe door
lock.
Leave thekey inthe door lock.
2. Remove plasticcoveroverthefuse box.
3. Pullout positive terminal Ainthe fuse box.
4. Use ajumper cabletoconnect thepositive
terminal ofthe donor battery withpositive
terminal Ainthe fuse box.
Practical Tips,Emergency Service
Note

If
the vehicle waslocked, thealarm hornwillsound
when thenegative cableisconnected.
5. Use thesecond jumpercabletoconnect the
negative terminalofthe donor battery with
latch striker
B.

6. Switch thealarm system offbylocking andun-
locking atthe door lock.
7. Unlock theengine compartment lidorluggage
compartment lidwith theswitch. 8.
Disconnect thenegative cablefirst,thenthe
positive cable.
9. Push positive terminal Ainto thefuse boxand
push onthe plastic fuseboxcover.

Note

The engine cannot bestarted withthismethod.
Please observe thechapter "EMERGENCY START-
ING WITH JUMPER CABLES" onPage 160.

Battery

A
Warning!
Risk ofshort circuit andfire.

I>
Observe allwarning notesonthe battery.

I>
Disconnect thebattery duringallwork onthe
electrical system.

I>
Donot laytools orother metal objects onthe
battery asthey could cause ashort circuit
across thebattery terminal.

Hydrogen gasgenerated bythe battery
could cause anexplosion, resultinginsevere
personal injuries.

I>
Donot expose thebattery toan open flame,
electrical sparkoralit cigarette.

Risk ofsevere personal injuryanddamage to
the fabric, metalorpaint.

I>
Wear eyeprotection.

I>
Donot allow battery acidtocome incontact
with your skin, eyes, fabric orpainted surfac-

es.
I>

Ifyou getelectrolyte, whichisan acid, inyour
eyes oron your skin, immediately rinsewith
cold water forseveral minutes andcalladoc-
tor.

I>
Spilled electrolyte mustberinsed offatonce
with asolution ofbaking sodaandwater to
neutralize theacid.

Battery posts,terminals andrelated acces-
sories contain leadandlead compounds,
chemicals knowntothe State ofCalifornia to
cause cancer andreproductive harm.

I>
Always protect yourskinbywashing thorough-
ly with soap andwater.
Charge
state

A well charged batterywillnotonly prevent start-
ing problems butwill also lastlonger.

In order toavoid discharging thebattery
unintentionally:

I>
Curtail unnecessary powerconsumption, par-
ticularly incity traffic orwhen travelling short
distances only.

I>
Always remove theignition keywhen leaving
the car.
Practical Tips,Emergency Service

Battery care

I>
Ensure thatbattery issecurely mounted.

I>
Keep terminals andconnections cleanand
properly tightened.
Corrosion canbeprevented bycoating theter-
minals andconnections withpetroleum jellyor
silicone spray.

I>
Ensure thatvent caps aresecurely tightened
to prevent spillage.
Practical Tips,Emergency Service Checking
theelectrolyte fluidlevel
Generally, theelectrolyte levelmust bechecked
more ofteninsummer thaninthe winter, andmore
often when driving longdistances.

I>
When adding water,useonly clean vessels.
In no case mayalcohol (e.g.window cleaner
residues) bepermitted toenter thebattery.

I>
Unscrew andopen thefiller ventcaps ofeach
cell.
With thecarhorizontal, thefluid level should meet
the indicator markineach cell.

i>
Ifnecessary, topupwith distilled water.
Do not use acid.
Only fillup tothe mark, otherwise theelectro-
lyte willoverflow whenthebattery isbeing
charged andcause damage. Battery
charging
Automotive batteriesloosetheirefficiency when
not inuse.
The charge available inyour battery canbemea-
sured withabattery hydrometer.
We recommend thatthebattery voltage betested
by your Porsche dealerwhohastheappropriate
equipment.
If the car isnot driven forprolonged periods,the
battery mustbecharged atleast every 6weeks.
A discharged batteryallowsrapidformation ofsul-
fates, leading topremature deterioration ofthe
plates.

j!\
Warning!
Hydrogen gasgenerated bythe battery
could cause anexplosion, resultinginsevere
personal injuries.

c> Charge battery inawell ventilated area.
c> Never charge afrozen battery. Itmay explode
because ofgas trapped inthe ice. Allow afro-
zen battery tothaw outfirst.
c> Ifyou getelectrolyte, whichisan acid, inyour
eyes oron your skin, immediately rinsewith
cold water forseveral minutes andcalladoc-
tor.
Slow
battery charging

1. Pay attention toallwarnings andfollow instruc-
tions thatcome withyour battery charger.
2. When charging, ensureadequate ventilation.
3. Remove battery.
Please observe thechapter "REMOVING THE
BATTERY" onPage 158.
4. Allvent caps should beopen.
The fluid level should meettheindicator mark
in each cell.
5. Ensure thatcharger isswitched off-danger of
short circuit!
6. Connect chargercables.

Charger cablesmustbeconnected
POSITIVE
(+1
toPOSITIVE
(+)
and
NEGATIVE (-)toNEGATIVE
(-I.

7. Switch oncharger.
Normally, abattery shouldbecharged atno
more than10percent ofits rated capacity.
Rated capacity ofthe battery inyour vehicle is
listed onthe battery housing.
8. After charging, turnoffcharger anddiscon-
nect charger cables.
9. Tighten thevent caps andreinstall battery
Please observe thechapter "INSTALLING THE
BATTERY" onPage 158. Winter
operation
During thewinter months, batterycapacity tends
to decrease astemperatures drop.
Additionally, morepower isconsumed whilestart-
ing, andtheheadlights, heater,rearwindow de-
fogger, etc.,areused more frequently.
c> let your Porsche dealertestthebattery's
capacity beforewintersetsin.
Replacing battery
The service lifeofthe battery issubject tonormal
wear; itdepends graetlyoncare, climatic condi-
tions, anddriving conditions (distances, loads).
c> Only useanoriginal Porsche battery,withthe
correct partnumber, asareplacement.
c> Please observe thedisposal instructions for
batteries.

c>c>c>

Practical Tips,Emergency Service

Removing thebattery

The requisite toolisinthe tool kit.
The battery islocated inthe luggage compart-
ment under ablack plastic lid.

A
Warning!
Risk ofdamage toalternator andelectronic
control units.

t> Donot disconnect thebattery whiletheengine
is running.
This also applies tocars equipped withabat-
tery main switch.
c> Never drivethecarwith adisconnected bat-
tery.

Risk ofcaustic burnsfromescaping acid.

c> Keep ventcaps ontoavoid spillage.

c>
Donot tiltthe battery whenremoving andin-
stalling
it.

158
PracticalTips,Emergency Service 1.
Switch offengine andallelectrical loads.
2. Open turn-locks
A.

Remove plasticlid.
3. Pull offcentral venthose
B.

4. Important: disconnect thenegative (-)ground
wire first, andthen thepositive (+lcable.
Danger ofshort circuit'
5. Unscrew fastening screwC.
6. Remove battery.
Installing
thebattery

1. Put battery in.
2. Screw infastening screwC.
3. Important: connectthepositive
(+)
cable first,
and then thenegative (-)ground wire.
Danger ofshort circuit
l

4. Push oncentral venthose
B.

5. Fitplastic lid.Lock turn-locks
A.

Replacing theremote-control battery

A weak battery mayberecognized bythe clearly
reduced actionrangeofthe remote controlor
when the
light-emitting diode2
inthe key grip
no longer flashes whentheremote controlis
operated. 1.
Using yourfinger nailorasmall screwdriver,
carefully liftoff the cover ofthe key grip.
2. Replace battery(observe polarity).
A spare battery (Lithium CR2032, 3volts) is
available atyour authorized Porschedealer.
3. Replace coverandpress together firmly.

Note

Any disposal regulations forbatteries mustbeob-
served'
PracticalTips,Emergency Service
159