PORSCHE 911 GT3 2004 5.G Repair Manual

A
Warning!
Risk ofan accident, personalinjuryandloss
of control.

I>
Donot reach through thesteering-wheel
spokes whiledriving.

Switching betweenunits

I>
With theignition on,hold adjustment buttonA
turned tothe leftforapprox. 5seconds.
Note
The units ofthe distance andspeed displays can
also bechanged inthe "SET" menuofthe on-
board computer.

A -
Adjustment button
for
change-over between
kilometers/miles
Speedometer

The digital speedometer isintegrated inthe point-
er instrument.
The indication changesfrommphtokm/h when
the units arechanged frommiles tokilometers.
Controls, Instruments
Changing
overbetween
Miles /Kilometers

You canuseadjustment buttonAto change the
units ofthe distance andspeed displays inthe on-
board computer anddigital tachometer.

Tachometer
The tachometer showstheengine speedinrevo-
lutions perminute (rpm).
The beginning ofthe redmarks atthe right endof
the scale indicates themaximum permissible en-
gine rpm.
A speed limiterprevents theengine frombeing
overrewed duringacceleration. Beforereaching
this area, thenext
higher
gearshould beselect-

ed.
Shift tothe next
lower
gearwhen theengine rpm
drops below 1500rpm.
A

Caution!
To avoid severe engine damage.

t>
Always observe theengine rpmbefore down-
shifting toalower gear,soyou donot exceed
the maximum enginerpm.
+
.•
Turn
Signal Indicator
Light

Flashes insynchronism withtheturn signals.
Left arrow -leftturnsignals
Right arrow -right turnsignals

t>
Ifthe frequency ofthe display becomes notice-
ably faster, checktheoperation ofthe turn sig-
nals.

§D
HighBeam

Indicator light
Lights whenhighbeam orheadlight flasheris
switched on.
The indicator lightgoes outwhen thehigh beams
are switched off.
Controls, Instruments
61

_LCooling System

Temperature gauge(ignition on)
USA: Display in
of

Canada: Displayin°C

Pointer tothe left-
engine cold

c>
Avoid highengine speeds andheavy engine
loading.
Controls, Instruments
Pointer
inthe middle -
normal operating tem-
perature
The pointer maymove uptothe redarea when en-
gine isheavily loadedandoutside temperature is
high, butshould returnto"normal" whenengine
load isreduced.
Warning light"A"

If
the
coolant temperature
istoo high, thewarn-
ing light
comes on.

Additionally, awarning isdisplayed inthe on-board
computer.

c>
Pull offthe road, turnoffthe engine andallow
to cool.

c>
Check radiator andairpassages infront endof
car forobstructions.

c>
Check coolant level.
If necessary, addcoolant andhave faultreme-
died atan authorized Porschedealer.

Please observe thechapter
"COOLANT
LEVEL"
ONPAGE 113.
Note

To prevent excessive temperatures, thecooling-
air passages mustnotberestricted bycoverings
(e.g. films, "stone guards").
If

the
coolant level
istoo low, thewarning light

flashes.

Additionally, awarning isdisplayed inthe on-board
computer.

c>
Switch engineoffand allow tocool.

c>
Add coolant.

c>
Have thecause ofthe fault remedied atan au-
thorized Porschedealer.

Please observe thechapter
"COOLANT
LEVEL"
ONPAGE 113.

/!\
Caution!
Risk ofengine damage.

c>
Ifthe warning lightscome oneven though cool-
ant level iscorrect, donot continue driving.

c>
Have thefault remedied atthe nearest
authorized Porschedealer.
Engine compartment blowerfan
In addition, thiswarning light
flashes
toindicate a
fault inthe
engine compartment blowerfan.

c>
Have thecause ofthe fault remedied atan
authorized Porschedealer.

j)
Fuel

level gauge

When theignition ison the fuel level isdisplayed.

t>
Please observe thechapter "CAPACITIES" on
Page 185.
If the vehicle's inclination changes(e.g.going up
or downhill), minordeviations inthe indication may
occur.
Note

If the tank isnear empty andyoutopupwith only
a small quantity offuel, thiscannot beregistered
by the level gauge andcalculation ofthe range re-
maining isimpossible.
Warning
light
"Au

When theengine isrunning, thewarning light

of the level gauge
lightsup
ifless than approx.
3 U.S. gallons (12liters) offuel remains inthe
tank orthe range onremaining fuelfalls below ap-
prox. 30miles (50km).
Additionally, awarning isdisplayed inthe on-board
computer.

t>
Fillupatthe next opportunity.

/!\
Caution!
To prevent damage tothe emission control
system andengine.

t>
Never drivethetank completely outoffuel.

t>
Avoid highcornering speedsafterthewarning
lights havecome on.

c>
Please observe thechapter "EMISSION CON-
TROL SYSTEM" onPage 124.

If the level gauge warning lightflashes,
there
has been asystem fault.
Additionally, awarning isdisplayed inthe on-board
computer.
There willthen benoreserve warning.

c>
Toremedy thefault, gotoan authorized
Porsche dealer.
Controls, Instruments
63

A-
Adjustment buttonforclock

B -
Clock

Clock

The
clock
isblanked outapproximately fourmin-
utes after theignition isswitched offorwhen the
car islocked.
Controls, Instruments
Setting
thetime

/!\
Warning!
Risk ofan accident andlossofcontrol.

c>
Donot reach through thesteering-wheel
spokes whiledriving.

Setting hours

c>
Press adjustment buttonAfor about onesec-
ond. Hour display flashes.

c>
Turn button inthe appropriate direction:
to right -increase hoursfigure
to left -decrease hoursfigure.
Adjustment inhours -turn button briefly
Fast adjustment (displaycycles)-
turn andhold button.

Setting minutes

c>
Press adjustment buttonagain.
Minutes displayflashes.

c>
Set byrotating asinhours mode.
Leaving
adjustment mode

Automatically afteroneminute
or:

c>
Press adjustment buttonagain.
When adjustment modeisdeliberately leftby
pressing thebutton, thetime begins precisely to
the second.

Note

The time mode canbechanged between12hand
24h inthe on-board computer.

Engine OilPressure

~ Gauge

With awarmed-up engineandataspeed of3000
rpm, theoilpressure shouldbeapprox. 3.5bar.
If
the oilpressure dropsabruptly andthe
warning lightsinthe instrument panelandin
the on-board computer comeonwhile the
engine isrunning orwhile driving:

I>
Immediately stopinasuitable place
and switch engine off.
Measures see"Warning light".

Warning light

The warning lightinthe instrument panellightsup
when ignition isswitched onand must goout when
engine isrunning.

If the warning lightsinthe instrument panel
and inthe on-board computer comeonwith
the engine running orwhile driving:

I>
Immediately stopinasuitable place.

I>
Switch offthe engine.

I>
Check whether thereisan obvious oilleak on
or under thecar.

I>
Ifno oilleak canbedetected:
Measure theoillevel using theon-board com-
puter orthe oildipstick
withtheengine
idling.

Please observe thechapter "ON-BOARD COM-
PUTER (BC)"onPage 67.
Please observe thechapter "ENGINE OillEV-
El" onPage 115.

I>
Add engine oilifnescessary.
/!\

Caution!
Risk ofengine damage.

I>
Donot continue drivingifthere isan obvious oil
leak.

I>
Donot continue drivingifthe warning lights
come oneven though oillevel iscorrect.

I>
Have thefault remedied atthe nearest
authorized Porschedealer.
Controls, Instruments
65

CheckEngine
Warning Light

The warning lightinthe instrument panelcomes
on when theignition isfirst turned onand remains
on briefly asabulb check. Ifthe light does not
come on,have thebulb replaced promptly.
If the warning lightsinthe instrument panelandon-
board computer comeonand remain onwhile
driving, itsuggests:
- apotential enginecontrol problem andthe
need forsystem serviceor
- animproperly fastenedtankcapor
- refuelling withengine running.
Although thevehicle isusually driveable andwill
not require towing, seeyour dealer forservice as
soon aspossible.
Controls, Instruments
A

Caution!
If the Check engine lightinthe instrument
panel isflashing, severecatalytic converter
damage andpower losswillsoon occur.
Prolonged drivingwiththeCheck engine
light oncould cause damage tothe emission
control system. Italso could affect fuelecon-
omy anddriveability.

I>
Have thefault remedied atthe nearest autho-
rized Porsche dealerimmediately.

On-Board Computer (BC)

Display field

The display fieldisbeneath thetachometer.

Readiness foroperation

- With ignition switched on,
- with engine running.
Operation,
controls

It
is not possible todescribe alldetails ofthe on-
board computer functionsinthis Owner's Manual.
However, theexamples willquickly familiarize you
with thefunctional principleandhelp youtonavi-
gate through themenu structure.
You canrestore thefactory defaultsettings atany
time byusing the
"SET"
menu.
Operating
lever

The on-board computer isoperated withthelower
left lever onthe steering column.

Selecting functions ofthe on-board
computer

I>
Push leverup1or down
2.

Confirming selection(Enter)

I>
Push leverforward
3.

Moving backoneorseveral selection levels

I>
Pull thelever back4once orseveral times.

Note

You canalways returntothe basic menu bypulling
the operating leverseveral times.
Controls, Instruments

Functionsanddisplay possibilities

A .Selection
field

B .
Continuation arrowsymbol

C .
Top display

D·
Central display

E .
On·board computer display

Basic setting

- Top display: Odometer
- Central display: Tripodometer
You canchange bothdisplays tosuit your
requirements byusing the"SET" menu.
Controls, Instruments
Calling
on-board computer functionsin
display "E"

I>
Push operating leverupordown
(selection fieldAmust beswitched off).
The following displayscanbecalled stepbystep:
- Outside temperature
(OF),

- Average speed(0mph),
- Average consumption (0mpg),
- Range onremaining fuel(miles
-:>.il'),

Canada vehicles

The units inthe on·board computer aredisplayed
in kilometers, litersandDC.
The values "Tripodometer", "Averagespeed"and
"Average consumption" canbereset tozero using
the "BC" menu.

Note

Pulling theoperating levertothe rear 4takes you
directly fromavalue which canbereset tothe
"BC" menu.
Switching
selectionfield"A"onoroff

I>
Push operating leverforward orback.

Arrow symbol "B"forcontinuation

Arrow symbol
"V

I>
Push operating leverdown inorder tocontinue
the menu.
Arrow symbol..:::..

I>
Push operating leverupinorder tocontinue
the menu.

Switchingtheacoustic warningsignaloff

~ Select "LIMITactivated" withtheoperating
lever.
~ Push operating leverforward.
Display:
D

~~~

I>

Push operating leverforward untilthedesired
speed isreached.
The acoustic warningsignalisactivated forthe
desired speed.
~
Use theoperating levertoselect "mph
+"
or
"mph -".
not activated
activated

D

I!I
I>
Press theoperating leverforward ifthe "not
activated" displayappears.

Option
2:
Preset speed

~ Select "LIMITactivated" withtheoperating
lever.
The
acoustic warningsignalisactivated forthe
current speed.
Display:
I!I

Option
1:
Accept current speed

~ Push operating leverforward.

Switching onselection field"A"

~ Push operating leverforward.
The
acoustic warningsignalcanbeactivated for
speeds above6mph (10km/h).
The signal sounds ifthe preset speedis
exceeded. For the signal tosound again,thedriving speed
must fallbelow thepreset speedbyatleast 3mph
(5 km/h).
~ Push operating leverforward.

Setting
thespeed

~ Select "LIMIT" withtheoperating lever.

"LIMIT"

Acoustic warningsignalfor
speed limit

Controls,Instruments