engine PORSCHE 911 GT3 2004 5.G Service Manual

Withthecigarette lighterremoved, thesocket
may beused forsmall electrical appliances, such
as ashaver orhand vacuum cleaner.

Maximum rating:150Watt.

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Donot operate electrical appliances formore
than 5minutes whenengine isoff (battery will
otherwise discharge).

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Donot damage thesocket bytrying toinsert
plugs ofthe wrong design.

Operating
additional appliances

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Push inknob ofthe cigarette lighter.
When readyforuse, thelighter willsnap back.

g

Heating lighter
Ashtray
I...
Cigarette Lighter
Opening

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Press ashtray lidbriefly.

Emptying

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Open ashtray andcarefully pulloutash insert
by the lid.

A
Warning!
Danger offire.

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Never useashtray forwaste paperdisposal,
as itcould poseafire hazard.
A

Warning!
Danger offire and burning.
The cigarette lighterisready foruse, re-
gardless ofthe ignition lockposition.

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Never leaveunsupervised childreninthe car.

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Never touchtheheating element orsides of
the lighter.

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Hold thelighter bythe knob only.
Controls, Instruments

A-
Opening luggagecompartment lid

B -
Opening enginecompartment lid

Luggage Compartment Lidand
Engine Compartment Lid

Unlocking

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Operate theappropriate pull-buttonnexttothe
driver's seat.
The luggage compartment orengine compart-
ment isilluminated whentherespective lidis
open.

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Please observe thechapter "LOADSWITCH-
OFF AFTER TWOHOURS ORFIVE DAYS" on
Page 152.
Controls, Instruments The
luggage compartment lidcan also beun-
locked withtheradio remote control.

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Please observe thechapter "KEYS"onPage

19.

Important Note

If the vehicle batteryisdischarged, thelids can be
opened onlybyconnecting anexternal electrical
power source.

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Observe thedescription insidethefuse box
cover.

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Please observe thechapter "EMERGENCY UN-
LOCKING OFTHE LUGGAGE COMPARTMENT
LID AND ENGINE COMPARTMENT LID"on
Page 154.
• Warning light
The warning lightsinthe instrument panelandin
the on-board-computer comeonifthe lids arenot
completely closed.

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Fully close thelid.

~Closing luggage compartment lidand

<'l
engine compartment lid
Opening luggagecompartment lid

A
Caution!
Risk ofdamage toluggage compartment lid
or windshield wipers.

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Make surethatthewindshield wipersarenot
folded outforwards whenopening theluggage
compartment lid.

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Raise lidslightly andunlatch thesafety catch
with thelever (arrow).
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Lower lidand letitfall into thelock. Ifneces·
sary, pushthelidwith thepalm ofyour hand in
the area ofthe lock.

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Check thatthelidhas correctly engagedinthe
lock.

A
Warning!
Risk ofloss ofcontrol oran accident, result-
ing inserious personal injury.

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Should younotice atany time while driving that
one ofthe lids isnot secured properly, please
stop immediately inasuitable placeandclose

it.

The front lidmay flyup impairing vision.
Controls,Instruments
99

CarTelephone and
Aftermarket Alarms

Important legalandsafety information
regarding theuse ofcellular telephones

Some states mayprohibit theuse ofcellular tele-
phones whiledriving avehicle. Checkthelaws and
regulations onthe use ofcellular telephones inthe
areas where youdrive.

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Danger!
Risk ofan accident.
Severe personal injuryordeath canresult in
the event ofan accident.
Looking awayfromtheroad orturning your
attention awayfromyourdriving cancause
an accident andserious orfatal injury.

When usingyourcellular telephone, youshould al-
ways:
" Give fullattention toyour driving -pull offtile
road andpark before making oranswering a
call iftraffic conditions sorequire;
and

" Keep bothhands onthe steering wheel-use
hands-free operation(ifavailable) -pull offthe
road andpark before usingahand-held tele-
phone.
It
is essential toobserve theinstructions of
the telephone manufacturer beforeputting
the telephone intooperation.

Any portable telephone orradio transmitter which
is used inaPorsche mustbeproperly installedin
accordance withthetechnical requirements of
Porsche.

The transmission powermustnotexceed

lOW.

The devices mustpossess atype approval for
your vehicle andhave an"e"
symbol.

If you should require equipment withtransmission
power values greater than10 W, please consult
your authorized Porschedealerforthis purpose.
He isfamiliar withthetechnical requirements for
installing devicesofthis kind.
The antennas forallradios andtelephones witha
transmitting antennamustbeexternally mounted.
The improper installation ofradios ortelephones
or use ofaradio ortelephone withatransmitting
antenna insidethecar may cause
thewarning
lights tocome on.

Improper installation ofsuch equipment cancre-
ate adischarged batteryorexcessive current
draw fromadded equipment. If
aftermarket systemsareinstalled bynon-dealer-
ship technicians oroutside theselling dealer,
problems mayresult. Installation ofaftermarket
equipment isnot covered undertheNew CarWar-
ranty.
" Consult yourauthorized Porschedealerabout
the installation ofnon Porsche approved equip-
ment.

Reception quality

The reception qualityofyour cartelephone will
change constantly whenyouaredriving. Interfer-
ence caused bybuildings, landscape andweather
is unavoidable. Itmay become particularly difficult
to hear when usingthehands-free functiondueto
external noisesuchasengine andwind noise.

Automatic car-wash

" Unscrew externalantennas beforeusinganau-
tomatic car-wash.
Controls, Instruments
107

Gearshifting

The positions ofthe gears areshown onthe gear-
shift lever.

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Warning!
Risk ofan accident.

~ Always checkthemovement ofthe clutch ped-
al before driving andmake surethatitis not
obstructed byafloor matorany other object.
~ Secure thefloor mattoprevent itfrom sliding
into positions thatcould interfere withthesafe
operation ofyour vehicle.
Your Porsche dealercanoffer youfloor mats
of the correct sizeincluding asecuring possi-
bility.

To avoid damage tothe clutch andtransmis-
sion:

~ Always depress theclutch pedalfullywhen
changing gears.
Make surethatthegearshift leveriscomplete-
ly engaged.
~ Only shiftintoreverse whenthecar has come
to acomplete stop.
~
Permitted enginespeed

~ Change intoahigher gearbefore theneedle
reaches thered mark onthe tachometer, or
ease offthe accelerator.
If the redzone isreached duringacceleration, fuel
feed isinterrupted.

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Caution!
To avoid severe engine damage.

~ Always observe theengine rpmbefore down-
shifting toalower gear,soyou donot exceed
the maximum enginerpm.

Reverse

~ Depress theclutch pedalforseveral seconds
before shifting intoreverse.
Only then move thegearshift levertothe left,
overcoming thespring tension, andthen tothe
front.
Both back-up lightscome onwhen thetransmis-
sion isput into reverse (withignition on).
Controls,Instruments
109

Maintenance,CarCare

Caution 112
Coolant Level 113
Engine Oil 114
Engine OilLevel 115
Engine OilRecommendation 117
Brake FluidLevel 119
Fuel Economy 120
Fuel Recommendations 122
Portable FuelContainers 123
Emission ControlSystem 124
Fuel Evaporation Control 126
Washer Fluid 126
Power Steering 127
Air Filter 128
Particle Filter 128
Manual Transmission Oil 128
Wiper Blades 129
Car Care Instructions 130
Maintenance, CarCare

Exercise ExtremeCautionwhen
Working onyour Vehicle

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Warning!
Ignoring thefollowing instructions may
cause serious personal injury.

~ The engine compartment ofany motor vehicle
is apotentially hazardous area.Ifyou arenot
fully familiar withproper repairprocedures, do
not attempt theadjustments describedonthe
following pages.
This caution appliestothe entire vehicle.
~ Only work onyour vehicle outdoors orinawell
ventilated area.
~ Ensure thatthere arenoopen flames inthe
area ofyour vehicle atany time when fuel
fumes mightbepresent. Beespecially cau-
tious ofsuch devices suchashot water heat-
ers which igniteaflame intermittently.
~ Before working onany part inthe engine com-
partment, turntheengine offand letitcool
down sufficiently. Hotengine compartment
components canburn skinoncontact.
~ Bealert andcautious aroundengineatall
times whiletheengine isrunning.
If work hastobe performed withtheengine
running, alwayssetthe parking brake,and
make suretheshift lever isinneutral position.

1
Maintenance, CarCare ~
Inparticular, bevery careful toensure that
items ofclothing (ties,shirt, sleeves etc.),
jewelry, longhair,hand orfingers cannotget
caught inthe engine-compartment blower,fan,
belts orother moving parts.
The radiator andradiator fansareinthe front
of the car.
The engine-compartment blowerismounted
on the engine compartment lid.
The fans canstart orcontinue runningasa
function oftemperature, evenwiththeengine
switched off.
Carry outwork inthese areasonlywiththeen-
gine off,theignition switched off,and exercise
extreme caution.
~ Your Porsche isequipped withanelectronic ig-
nition system. Whentheignition ison, high
voltage ispresent inall wires connected with
the ignition system; therefore, exerciseex-
treme caution whenworking onany part ofthe
engine whiletheignition ison orthe engine is
running.
~ Always support yourcarwith safety stands ifit
is necessary towork under thecar.
~ When working underthecarwithout safety
stands butwith thewheels onthe ground,
make surethecarison level ground, the
wheels areblocked, andthat theengine
cannot bestarted.
Remove theignition key. ~
Donot smoke orallow anopen flame around
the battery orfuel.
Keep afire extinguisher inclose reach.
~ Incomplete orimproper servicingmaycause
problems inthe operation ofthe car. Ifin doubt
about anyservicing, haveitdone byyour
authorized Porschedealer.
Improper maintenance duringthewarranty
period mayaffect yourPorsche warranty cov-
erage.
~ Supplies offluids, e.g.engine oil,brake fluidor
coolant, arehazardous toyour health.
Keep these fluidsoutofchildren's reachand
dispose ofthem inaccordance withtheappro-
priate regulations.
~ Some countries requireadditional toolsand
special sparepartstobe carried.
Please makeenquiries beforedriving abroad.

Power measurements

Power measurements ondynamometers arenot
approved byPorsche.

Coolant Level

l>
Please observe thechapter "EXERCISE EX-
TREME CAUTION WHENWORKING ONYOUR
VEHICLE" onPage 112.
The cooling systemisfilled atthe factory witha
permanent coolant.
It provides year-round protectionfromcorrosion
and freezing downto-31°F
I-35°C
(Nordiccoun-
tries -40°F/-40°Cl.

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Only useantifreeze authorized byPorsche.
Checking
coolantlevel

The expansion tankwithitsfiller orifice isinthe en-
gine compartment.

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Check thecoolant levelregularly throughthe
transparent expansiontank.
When theengine iscold andthecar islevel the
fluid level must liebetween the"MIN" and"MAX"
markings.

Topping offcoolant

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Warning!
Danger ofserious personal injuryfromscald-
ing. Coolant ishazardous toyour health, and
may befatal ifswallowed.

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Donot open thecap ofthe expansion tank
while theengine ishot.

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Allow theengine tocool down before opening
the cap andprotect yourhands, armsandface
from anypossible escapeofhot coolant.

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Keep coolant outofchildren's reach.

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Also, keepcoolant awayfromyourpets.
They canbeattracted toitshould therebea
spill, ortoused coolant leftinan open contain-
er. Coolant canbedeadly topets ifconsumed. 1.
Switch engineoffand letitcool.
Please observe thechapter "COOLING SYS-
TEM" onPage 62.
2. Cover theexpansion tankcapwith athick rag.
Open capslowly andcarefully andallow over-
pressure toescape.
Then unscrew capcompletely.
3. Only addamixture ofantifreeze andwater in
equal parts, anddonot exceed the"MAX"
mark.

Antifreeze incoolant:

50% gives protection downto
-31°F/-35°C

60% gives protection downto-58°F
I-50°C

4. Screw capfirmly on.
If in an emergency purewater hasbeen added,
the mix ratio must becorrected atan authorized
Porsche dealer.
Marked lossofcoolant indicates leakageinthe
cooling system.
The cause should immediately beremedied atan
authorized Porschedealer.
Maintenance, CarCare
113

Engine-compartment blower,
radiator fan

The radiator andradiator fansareinthe front of
the car.
The engine-compartment blowerismounted on
the engine compartment lid.

A
Warning!
Risk ofinjury.
After theengine isswitched off,theengine-
compartment andcoolant temperatures are
monitored forapprox. 20minutes.
During thisperiod, anddepending ontem-
perature, theengine-compartment blower
and radiator fansmaycontinue torun or
start torun.

t>
Carry outwork inthese areasonlywiththeen-
gine off,the ignition switched off,and exercise
extreme caution.

1
Maintenance, CarCare
Engine
Oil

Engine oilconsumption

It is normal foryour engine toconsume oil.
The rate ofoil consumption dependsonthe quality
and viscosity ofoil, the speed atwhich theengine
is operated, theclimate, roadconditions aswell
as the amount ofdilution andoxidation ofthe
lubricant.
If the vehicle isused forrepeated shorttrips, and
consumes anormal amount ofoil, the engine oil
measurement maynotshow anydrop inthe oil
level atall, even after600miles (1000 km)or
more. Thisisbecause theoilisgradually becom-
ing diluted withfuelormoisture, makingitappear
that theoillevel hasnotchanged.
The diluting ingredients evaporateoutwhen the
vehicle isdriven athigh speeds, ason anexpress-
way, making itthen appear thatoilisexcessively
consumed afterdriving athigh speeds.
If the conditions youdrive yourvehicle inare
dusty, humid, orhot, thefrequency ofthe oil
change intervals shouldbegreater. If
the vehicle isdriven atahigh rateofspeed,
climatic conditions arewarm, andtheload ishigh,
the oilshould bechecked morefrequently, as
driving conditions willdetermine therate ofoil
consumption.
- The engine inyour vehicle depends onoilto
lubricate andcool allofits moving parts.
Therefore, theengine oilshould bechecked
regularly andkept atthe required level.
- Make ita habit tohave theengine oillevel
checked withevery fuelfilling.
- The oilpressure warninglightisnot anoillevel
indicator.
The oilpressure warninglightindicates serious
engine damage maybeoccuring whenlit,ifen-
gine rpmisabove idlespeed.

Engine Oillevel

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Please observe thechapter "EXERCISE EX-
TREME CAUTION WHENWORKING ONYOUR
VEHICLE" onPage 112.

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Regularly checktheoillevel using theon-board
computer eachtimethevehicle isrefuelled.
Please observe thechapter "ON-BOARD COM-
PUTER (BC)"onPage 67.
A

Warning!
Risk ofburning fromhotparts inengine com-
partment. Riskofinjury byrotating parts.
The engine compartment bloweronthe en-
gine compartment lidcan start upeven with
engine off.

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Exercise extremcaution whenworking onthe
engine compartment.

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Top ofengine oilonly withtheengine off.

Engine oilishazardous toyour health and
may befatal
if
swallowed.

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Keep engine oilout ofchildren's reach.

Used engine oilcontains chemicals thathave
caused cancerinlaboratory animals.

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Always protect yourskinbywashing thorough-
ly with soap andwater.
The oildipstick andoilfiller areinthe engine com-
partment.

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Maintenance,CarCare
1