tow PORSCHE 911 GT3 2004 5.G Owners Manual

A
Safety notes!

Motor racing isaterm weassociate withfascina-
tion andemotion.
On the one hand.
On the other hand, there's thetechnology that
makes thisfascination possible.
Your new911 GT3 hasbeen developed withexpe-
rience gained fromthedevelopment anduseof
countless GTvehicles, andhasbeen equipped
with technical preconditions thatfacilitate use
away frompublic roadsinmotor racing.
Depending onuse, itcan bepossible ornecessary
to adapt thevehicle tothe respective conditions.
In the case, itmust always betaken intoaccount
that amodern high-performance sportscarrepre-
sents acomplex systemwithindividual compo-
nents thatarecarefully adjusted towork together
perfectly.
Interfering inthis system isonly anoption ifitcan
be guaranteed thatallofthe components willcon-
tinue towork together inamanner adjusted tothe
actual conditions ofuse. Well-founded specialist
knowledge isnecessary forthis. Youshould seek
advice fromyourauthorized Porschedealer.
Here, youwillreceive information aboutsports
parts available fromPorsche, theirreliability on
public roadsandimportant maintenance notes.

8
Please
bearinmind thatuseonrace tracks sub-
jects allvehicle components toconsiderably more
wear thannormal use,making professional in-
spection andmaintenance aftereach useavital
preconditon forfunctioning andsafety.
Please useonly Original Porsche Partsforyour
car. These partsareavailable fromyourautho-
rized Porsche dealer,whichisconversant withthe
range ofapproved partsandwillbepleased toad-
vise youfurther.
Porsche acceptsresponsibility, inaccordance
with itslegal obligations, forGenuine Porsche
Parts andforparts andaccessories whichithas
approved foryour car.However, theuse ofother
parts oraccessories whichareneither Genuine
Porsche Partsnorapproved byPorsche mayad-
versely affectthesafety ofyour car,andPorsche
can take noresponsibility forany loss ordamage
caused bytheir use.
Even ifthe supplier ofother accessories orparts
is arecognised supplier,thesafety ofyour car
may stillbeaffected ifsuch items areinstalled.
Due tothe large variety ofproducts offeredinthe
accessory marketitis not possible forPorsche to
inspect andapprove everyone.
In addition, pleasenotethattheuse ofreplace-
ment parts which arenotGenuine Porsche Parts
or approved partsorthe use ofaccessories not
approved byPorsche mayalsodetrimentally
affect theWarranties relatingtoyour car.
Technical
modifications

Modifications maybecarried outonyour vehicle
only ifapproved byPorsche.This ensuresthat
your Porsche willremain reliable andsafe todrive
and that itwill notbedamaged asaresult ofthe'
modifications.Your authorizedPorschedealerwill
be pleased toadvise you.

Coverings
~ Donot affix anycoverings (e.g.films or"stone
guards") inthe area ofthe headlights andair
intakes. Damage duetoexcessive temperatures and
abrasion couldresult.

Motor racing

For reasons ofsafety, thebraking system, steer-
ing, running gear,wheels andtires ofyour car
should bechecked afterevery race.
On public highways, therunning gearandrear
spoiler mustbeinthe standard position.

DearPorsche Owner

A lot has gone intothemanufacture ofyour
Porsche, includingadvanced engineering, rigid
quality control anddemanding inspections.
These engineering andsafety features willbe
enhanced byyou ...

the safe driver ...

- who knows hiscar and allcontrols,
- who maintains thevehicle properly,
- who uses driving skillswisely andalways
drives withinher/his owncapabilities andthe
level offamiliarity withthevehicle.
You willfind helpful hintsinthis manual onhow to
perform mostofthe checks listedonthe following
pages.
If in doubt, havethese checks performed byyour
authorized Porschedealer.
Controls, Instruments
Before
driving off...

Check thefollowing itemsfirst

I>
Turn theengine offbefore youattempt any
checks orrepairs onthe vehicle.

I>
Besure thetires areinflated correctly.
Check tiresfordamage andtirewear.

I>
See that wheel boltsareproperly tightened
and notloose ormissing.

I>
Check engine oillevel, addifnecessary.
Make itahabit tohave engine oilchecked with
every fuelfilling.

I>
Check allfluid levels suchaswindshield
washer andbrake fluidlevels.

I>
Besure thevehicle battery iswell charged and
cranks theengine properly.

I>
Check alldoors andlidsforproper operation
and latch them properly.

I>
Check, andifnecessary replacewornor
cracked wiperblades.

I>
See that allwindows areclear andunob-
structed.

I>
Check airintake slotsandarea between lug-
gage compartment lidand windshield arefree
of snow andice,sothe heater andthewind-
shield wipers workproperly.
I>

Ifachild willberiding inthe vehicle, check
child seat/child seatrestraint systemtoen-
sure thatrestraints areproperly adjusted.

I>
Check allexterior andinterior lightsforopera-
tion andthat thelenses areclean.

I>
Check theheadlights forproper aim,andif
necessary, havethem adjusted.

I>
Check underthevehicle forleaks.

I>
Besure allluggage isstowed securely.

Emergency equipment

It is good practice tocarry emergency equipment
in your vehicle.
Some ofthe items youshould haveare:
window scraper, snowbrush, container orbag of
sand orsalt, emergency light,small shovel, first-
aid kit, etc.

Inthe driver's seat...

c>
Check operation ofthe horn.

c>
Position seatforeasy reach offoot pedals and
controls.
To reduce thepossibility ofinjury fromthe
airbag deployment, youshould always sitback
as far from thesteering wheelasispractical,
while stillmaintaining fullvehicle control.

c>
Adjustthe insideandoutside rearview mirrors.

c>
Buckle yoursafety belts.

C>
Check operation ofthe foot andparking brake.

C>
Check allwarning andindicator lightswith
ignition onand engine notrunning.

C>
Start engine andcheck allwarning displays for
warning symbols.

C>
Never leaveanidling carunattended.

C>
Lock doors frominside, especially withchil-
dren inthe cartoprevent inadvertent opening
of doors frominside oroutside.
Drive withdoors locked.
On
the road ...

C>
Never driveafteryouhave consumed alcohol
or drugs.

C>
Always haveyoursafety beltfastened.

C>
Always drivedefensively.
Expect theunexpected.

C>
Use signals toindicate turnsandlane changes.

C>
Turn onheadlights atdusk orwhen thedriving
conditions warrantit.

C>
Always keepasafe distance fromthevehicle
in front ofyou, depending ontraffic, roadand
weather conditions.

C>
Reduce speedatnight andduring inclement
weather. Driving inwet weather requirescautionandre-
duced speeds, particularly onroads with
standing water,asthe handling characteristics
of the vehicle maybeimpaired duetohydro-
planing ofthe tires.

C>
Always observe speedlimitsandobey road
signs andtraffic laws.

C>
When tired,getwell offthe road, stopandtake
a rest. Turntheengine off.Donot sitinthe ve-
hicle withengine idling.
Please observe thechapter "ENGINE EX-
HAUST" onPage 10.
C>

When parked, alwayssetthe parking brake.
Move thegearshift levertoreverse orfirst
gear.
On hills also turnthefront wheels towardthe
curb.

C>
When emergency repairsbecome necessary,
move thevehicle welloffthe road. Turnonthe
emergency flasheranduseother warning de-
vices toalert other motorists. Donot park or
operate thevehicle inareas where thehotex-
haust system maycome incontact withdry
grass, brush,fuelspill orother flammable ma-
terial.

C>
Make itahabit tohave theengine oilchecked
with every fuelfilling.
Controls, Instruments

Break inhints forthe first
1,000 miles/l,600 kilometers
The following tipswillbehelpful inobtaining opti-
mum performance fromyournewPorsche.
Despite themost modern, high-precision manufac-
turing methods, itcannot becompletely avoided
that themoving partshavetowear inwith each
other. Thiswearing-in occursmainlyinthe first
1,000 milesj1,600 km.

Therefore:
I>
Preferably takelonger trips.

I>
Avoid frequent coldstarts withshort-distance
driving whenever possible.

I>
Avoid fullthrottle startsandabrupt stops.

I>
Donot exceed maximum enginespeedof
4,200 rpm(revolutions perminute).

I>
Donot run acold engine athigh rpmeither in
Neutral oringear.

I>
Donot letthe engine labor,especially when
driving uphill.Shifttothe next lower gearin
time (usethemost favorable rpmrange).

I>
Never lugthe engine inhigh gear atlow
speeds. Thisruleapplies atall times, notjust
during thebreak-in period.
Controls, Instruments
I>

Donot participate inmotor racing events,
sports driving schools, etc.during thefirst
1,000 milesj1,600 kilometers.
There maybeaslight stiffness inthe steering,
gear-shifting orother controls duringthebreak-in
period whichwillgradually disappear.

Break inbrake padsanddiscs

New brake padsanddiscs havetobe "broken in",
and therefore onlyattain optimal frictionwhenthe
car has covered severalhundred milesorkm.
The slightly reduced brakingabilitymustbecom-
pensated forbypressing thebrake pedalharder.
This alsoapplies whenever thebrake padsand
brake discsarereplaced.

New tires

New tires donot have maximum traction.They
tend tobe slippery.

I>
Break innew tires bydriving atmoderate
speeds duringthefirst 60to120 milesj1 00to
200 km.Longer braking distances mustbean-
ticipated.
Engine
oilconsumption

During thebreak-in periodoilconsumption maybe
higher thannormal.
As always, therate ofoil consumption dependson
the quality andviscosity ofoil, the speed atwhich
the engine isoperated, theclimate androad con-
ditions, aswell asthe amount ofdilution andoxi-
dation ofthe lubricant.

I>
Make ahabit ofchecking engineoilwith every
fuel filling, addifnecessary.

SafetyBelts

/!\
Warning!
Always makesureyour andyour passenger's
safety beltsareproperly fastened whilethe
vehicle isin motion.
Failure tofollow safety beltwarnings mayre-
sult inserious personal injury.

I>
For your andyour passenger's protection,use
safety beltsatall times whilethevehicle isin
motion.

I>
Use appropriate childrestraint systemsforall
small children.

Proper wearing ofsafety belts

I>
Safety beltsmust bepositioned onthe body as
to restrain theupper bodyandlapfrom sliding
forward. Improperly positionedsafetybelts
can cause serious personal injuryincase ofan
accident.

I>
The shoulder beltshould always restonyour
upper body.Theshoulder beltshould neverbe
worn behind yourback orunder yourarm.

I>
For maximum effectiveness, thelapbelt
should beworn lowacross thehips.

I>
Pregnant womenshouldposition thebelt as
low aspossible acrossthepelvis. Makesureit
is not pressing againsttheabdomen.
Controls, Instruments
I>

Belts should notbeworn twisted.

I>
Donot wear beltsoverrigidorbreakable ob-
jects inor on your clothing, suchaseye glass-
es, pens, keys,etc.asthese maycause injury.

I>
Several layersofheavy clothing mayinterfere
with proper positioning ofbelts.

I>
Belts mustnotrub against sharpobjects or
damage mayoccur tothe belt.

I>
Two occupants shouldneversharethesame
belt atthe same time.

Care andmaintenance

I>
Keep beltbuckles freeofany obstruction that
may prevent asecure locking.

I>
Belts thathave been subjected toexcessive
stretch forcesinan accident mustbeinspect-
ed orreplaced toensure theircontinued effec-
tiveness inrestraining you.
The same applies tobelt tensioner systems
which havebeen triggered.
In addition, theanchor pointsofthe belts
should bechecked.

I>
Ifsafety beltsdonot work properly, seeyour
authorized Porschedealerimmediately.

I>
Ifthe belts show damage towebbing, bindings,
buckles orretractors, theyshould bereplaced
to ensure safeoperation.
I>

Donot modify ordisassemble thesafety belts
in your vehicle.

I>
The belts must bekept clean orthe retractors
may notwork properly
Please observe thechapter "CARCARE IN-
STRUCTIONS" onPage 130.

I>
Never bleach ordye safety belts.

I>
Donot allow safety beltstoretract untilthey
are completely dryafter cleaning orthis may
cause damage tothe belt.

Belt tensioner

Depending onthe force ofan impact, fastened
seat belts aretightened inan accident.

The belttensioners aretriggered in:

- Frant andrear impacts

The belttensioners arenottriggered in:

- Side impacts
- Vehicle overturning

Note

The belttensioner systemcanbetriggered only
once; thesystem mustbereplaced afterward.
Work maybeperformed onthe belt-tensioner sys-
tem only byanauthorized Porschedealer.
Smoke isreleased whenthebelt tensioners are
triggered. Thisdoes notindicate afire inthe
vehicle.

o
SafetyBeltWarning System

An audio-visual warning
systemisinterconnect-
ed with thedriver's safetybelt.
Every timetheignition isturned on,the gong will
sound forabout 6seconds toremind driverand
passenger tobuckle up.
The safety beltwarning lightsinthe instrument
panel andon-board computer willgooffassoon
as the driver hasbuckled up.
Inertiareelretractor
The combination lap/shoulder beltwith inertia reel
locking mechanism adjustsautomatically toyour
size andmovements aslong asthe pull onthe belt
is slow.
Rapid deceleration duringhardbraking oracolli-
sion locks thebelt. Thebeltwillalso lockwhen you
drive upordown asteep hillorinasharp curve,
otherwise, theshoulder beltwillnotinhibit your
upper bodymovement. ~
Assume acomfortable sittingposition.
The shoulder beltshould always restonyour
upper body.Theshoulder beltshould neverbe
worn behind yourback orunder yourarm.
~ Tofasten, graspbeltandpullthebelt inacon-
tinuous slowmotion acrossyourchest andlap.
~ Insert belttongue intobuckle oninboard side
of seat. Pushdown until
it
securely lockswith
an audible click.Pullthebelt tocheck.
~ Pull shoulder sectiontomake surebeltfits
snugly across thepelvis.
~ Belts should fitsnugly across thepelvis and
chest. Makesurethere isno slack inthe belt.
~ Tounfasten belt,push inrelease button
(ar-

row)
onbuckle. Belttongue willspring outof
buckle.
~ Torelease alatched belt,leanback totake the
body pressure offthe belt.
~ Tostore lap/shoulder belt,allow thebelt tore-
tract asyou guide thelatch toits stowed posi-
tion.
~ Please observe thechapter "AUTOMATIC
LOCKING RETRACTOR" onPage 34.

~ ~~

Controls, Instruments

ChildRestraint Anchorages
~ Please observe thechapter "AUTOMATIC
LOCKING RETRACTOR" onPage 34.
If your child restraint seatrequire theuse ofateth-
er strap, youwillwant touse theanchor pointpro-
vided behind theseat backrests underthecarpet.
To ensure properinstallation, seeyour authorized
Porsche dealer.

A
Warning!
Child restraint anchorages aredesigned to
withstand onlythose loadsimposed bycor-
rectly fittedchildrestraints. Undernocir-
cumstances arethey tobe used foradults
safety beltsorharnesses. Suchusecould re-
sult inserious personal injuryordeath.

~ Donot misuse thechild restraint anchorages.
They arenotdesigned towithstand loadsim-
posed byadults.
Controls,Instruments

AirbagSystems

The Airbags incombination withthesafety belts
makes upasafety system whichoffers thedriver
and thepassenger thegreatest knownprotection
from injuries incase ofaccident.
Even ifyour vehicle isequipped withairbags,
the
safety beltsmust beworn atall times,
be-

cause thefront airbag system isonly actuated by
frontal collisions withanimpact ofsufficient sever-
ity.
See shown figureforranges ofeffectiveness.
Controls, Instruments Below
theactuation threshold ofthe airbag sys-
tem, andduring typesofcollisions whichdonot
cause theactuation ofthe system, thesafety belts
provide theprimary protection tothe occupants
when correctly worn.

Therefore, allpersons withinthevehicle
must always wearsafety belts
(inmany states,
state lawrequires theuse ofsafety belts).

I>
Please observe thechapter "SAFETY BELTS"
on Page 32.
The front airbags arelocated behindthepadded
steering wheelpanelonthe driver's sideandon
the passenger's sideinthe dashboard.
The side airbags (POSIP-Porsche SideImpact
Protection System)areinstalled inthe doors un-
der the door trimpanel.

Function

The front airbags aretriggered duringafrontal
collision ofsufficient force.
In the event ofaside impact ofcorresponding
force, theside airbag onthe impact sideistrig-
gered.
The inflation process generates theamount ofgas
required tofill the airbags atthe necessary pres-
sure infractions ofasecond.
Airbags protecttheface andupper body,whilst
simultaneously dampingthemotion ofthe driver
and passenger inthe impact direction inthe event
of afrontal impact orside impact.
A

Danger!
To provide optimal occupant protection, air-
bags must inflate atvery highspeed.
If you arenotwearing yoursafety beltorare
too close tothe airbag whenitsdeployed, in-
flating airbags canresult inserious injuryor
death.

I>
Make surethere arenopeople, animals orob-
jects between thedriver orpassenger andthe
area intowhich theairbag inflates.

I>
Sitback asfar from thedashboard orsteering
wheel asispractical, whilestillmaintaining full
vehicle control.

I>
Donot lean against theinside ofthe doors.

I>
Always holdthesteering wheelbythe outer
rim. Never restyour hands onthe airbag panel.

I>
Never transport heavyobjects onorinfront of
the passenger seat.

I>
Always keepthelidofthe door storage com-
partment closed.Objects mustnotprotrude
out ofthe door storage compartment.

I>
Give your passenger allofthe information in
this chapter.

I>
Nochanges mustbemade tothe wiring or
components ofthe airbag system.

Parkingbrakewarning lightUSA
Parking brakewarning light
Canada

The warning lightsinthe instrument panelandon-
board computer willgoout after theparking brake
is fully released.
The warning lightsarenotanindicator thatthe
parking brakeisfully set;itis only intended tobe
a warning torelease theparking brakebefore
driving thecar.

A
Caution!
A partially engaged brakewilloverheat the
rear brakes, reducetheireffectiveness and
cause excessive wear.

~ Release theparking brakefully.
t> When parking yourcar,always setthe parking
brake bypulling allthe way uponthe lever.

t>
Move thegearshift levertoreverse orfirst
gear.

t>
Onhills also turnthefront wheels towards the
curb.
Brakes

t>
Please observe thechapter "AERODYNAMIC
COMPONENTS" onPage 9.

t>
Make itahabit tocheck theoperation ofyour
brakes beforedriving.
Keep inmind thatthebraking distance increases
very rapidly asthe speed increases. At60 mph or
100 km/h, forexample, itis not twice butfour
times longer than30mph or50 km/h. Tiretrac-
tion isalso lesseffective whentheroads arewet
or slippery.

t>
Therefore, alwaysmaintain asafe distance
from thecarinfront ofyou.

Vehicles withoutPorsche Ceramic Compos-
ite Brake (PCCB)

Even though thebrake discsconsist ofalloyed
grey castiron,theywillunavoidably starttocor-
rode ifyour carisparked foranextended period.
The brakes willtend to"rub" asthe result.
The nature, extentandeffects ofcorrosion de-
pend onthe amount oftime thevehicle was
parked, whether granular orliquid roadsaltwas
spread andwhether grease.<Jissolving agents
were usedincar washes.
If the braking comfort isnoticeably impaired,we
recommend havingthebrake system checked by
experts atan authorized Porschedealer.
Brake
system function

Your Porsche isequipped withapower assisted
hydraulic dualcircuit brakesystem withdisc
brakes atthe front andrear.
Both circuits function independently. Onebrake
circuit operates thefront andtheother operates
the rear.
If one brake circuit hasfailed, theother willstill op-
erate. However, youwillnotice anincreased pedal
travel whenyouapply thebrakes.
Failure ofone brake circuit willcause thestopping
distance toincrease.

A
Warning!
Risk ofan accident.
In the unlikely eventofhydraulic failureof
one brake circuit:

t> Push thebrake pedaldownfirmly andhold itin
that position.
A mechanical linkageactivates thesecond cir-
cuit, andyou willbeable tobring thevehicle to
a stop.
t> After bringing yourvehicle toacomplete stop,
avoid driving thevehicle andinstead haveit
towed tothe nearest authorized Porschedeal-
er for repair.
Controls,Instruments

Brakebooster

The brake booster assistsbraking onlywhen
the engine isrunning.

When thecar ismoving whiletheengine isnot run-
ning, orifthe brake booster isdefective, more
pressure onthe brake pedalisrequired tobring
the car toastop.
Moisture orroad saltonbrakes affects braking.
When thevehicle isdriven onsalted roadsforex-
tended periods, thebrakes shouldbewashed
down thoroughly aboutevery2weeks. Anauto-
matic carwash facilitycannot dothis jobproperly.
Brakes willdry after afew cautious brakeapplica-
tions.

/!\.
Warning!
Driving through watermayreduce thetrac-
tion. Moisture onbrakes fromroadwater, car
wash, orcoating ofroad saltmay affect
braking efficiency.

c>
Cautiously applybrakes totest brakes after
being exposed.
Brake
wear

Your carhas excellent brakes,butthey arestill
subject towear. Therate atwhich theywear de-
pends onhow thebrakes areused.

c>
Have thebrake system inspected atthe
intervals recommended inyour Maintenance
Booklet.

•• Warning lightUSA
• Warning lightCanada

If the warning lightsinthe instrument panelandon-
board computer stayonwhen theengine isrun-
ning orcome onwhile driving, thebrake padsare
worn, excessively.

c>
Donot continue tooperate thevehicle.
Have yourauthorized Porschedealerinspect
or replace thebrake pads.
Brake
pads

Wear onthe brake padsandbrake discsdepends
to agreat extent onthe driving styleandthecon-
ditions ofuse and therefore cannotbeexpressed
in actual milesonthe road.
The high-performance brakesystem isdesigned
for optimal braking effectatall speeds andtem-
peratures.
Certain speeds, brakingforcesandambient
conditions (suchastemperature andhumidity)
therefore mightcause "brake noises".

New brake padsorlinings

New brake padsandbrake discshavetobe "bro-
ken i",and therefore onlyattain optimal friction
when thecar has covered severalhundred miles

or km.

The slightly reduced brakingabilitymustbecom-
pensated forbypressing thebrake pedalharder.
This alsoapplies whenever thebrake padsand
brake discsarereplaced.
Controls, Instruments
43