2004 PORSCHE 911 GT3 engine coolant

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.

Preconditions forcorrect
oillevel

measurement withtheoildipstick

Vehicle mustbelevel.
- Engine mustberunning andatoperating
temperature (engine coolant temperature ofatleast
176T /

80°C).
- The engine mustidleforatleast 20seconds
(under 1,000rpm).
- The airconditioning mustbeoff.

1
Maintenance, CarCare
Checking
the
oillevel
andtopping off
engine oil

1. Apply handbrake andputthe gearshift leverin
neutral.
2. Unscrew capAof the oilfiller opening.
Withdraw dipstickBand wipe itwith aclean,
lint-free cloth.
3. Push dipstick fullyhome, withdraw againand
read offthe oillevel.
Push dipstick inas far asthe stop.
The

oillevel
must inno case fallbelow the
minimum orexceed themaximum
oillevel

on the dipstick.

The difference betvv'eenthetwo marks isapproxi-
mately 1.0liter/l.l quarts.
4. Add engine oilquarter-liter atatime, ifneces-
sary.
5. Check oillevel withthedipstick again.
6. Carefully closecapofthe oilfiller opening.

FuelEvaporation Control

Fuel tank venting
The evaporation chamberandthecarbon canister
prevent fuelfrom escaping tothe atmosphere at
extreme highoutside temperatures, whendriving
abruptly aroundcurvesandwhen thecar isparked
at an incline orinany other nonlevel position.
Vapor control systemandstorage
When thefuel tank isfilled, vapors arecollected in
the evaporation chamberbyavent lineleading the
vapors tothe carbon canister wheretheyare
stored aslong asthe engine doesnotrun.
Purge system
When theengine isrunning, thefuel vapors from
the canister willbemixed withfresh airfrom the
ambient airofthe canister. Thismixture willbe
directed tothe intake airhousing bythe tank vent
line, mixed withtheintake airand burned during
normal combustion.
Maintenance, CarCare
Washer
Fluid

The reservoir, withablue screw cap,isinthe lug-
gage compartment, tothe rear left.
Capacity
- Without headlight cleaningsystem:
approximately 3.2quarts (3liters).
- With headlight cleaningsystem:
approximately 6.1quarts (5.7liters). Clean
water isgenerally notenough toclean the
windshield andheadlights.
It is advantageous toadd awinter cleaner giving
antifreeze protection orasuitable summer clean-
er, depending onthe season. Followtheinstruc-
tions forthe mixing ratio.

\>
Donot use engine coolant anti-freeze orany
other solution thatcandamage thecar's paint,
in the washer reservoir.

\>
Please noteallthe information onthe container
of the cleaning agent.

e
Warning light
The warning lightsinthe instrument panelandon-
board computer lightwhen approximately 0.5liter
(0.52 quarts) isleft inthe reservoir.

Exercise ExtremeCautionwhen
Working onyour Vehicle

A
Warning!
Ignoring thefollowing instructions may
cause serious personal injury.

I>
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.

I>
Only work onyour vehicle outdoors orinawell
ventilated area.

I>
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.

I>
Before working onany part inthe engine com-
partment, turntheengine offand letitcool
down sufficiently. Hotengine compartment
components canburn skinoncontact.

I>
Bealert andcautious aroundengineatall
times whiletheengine isrunning.
If work hastobe performed withtheengine
running, alwayssetthe parking brake,and
make suretheshift lever isin neutral position.

140
PracticalTips,Emergency Service
I>

Inparticular, bevery careful toensure that
items ofclothing (ties,shirt, sleeves etc.),jew-
elry, long hair,hand orfingers cannotget
caught inthe engine-compartment blower,fan,
belts orother moving parts.
The radiator andradiator fansareinthe front
of the car.
The fans canstart orcontinue runningasa
function oftemperature, evenwiththeengine
switched off.
Carry outwork inthese areasonlywith theen-
gine off,theignition switched off,and exercise
extreme caution.

I>
Your Porsche isequipped withanelectronic ig-
nition system. Whentheignition ison, high volt-
age ispresent inall wires connected withthe
ignition system; therefore, exerciseextreme
caution whenworking onany part ofthe engine
while theignition ison orthe engine isrunning.

I>
Always support yourcarwith safety stands ifit
is necessary towork under thecar.

I>
When working underthecarwithout safety
stands butwith thewheels onthe ground,
make surethecar ison level ground, the
wheels areblocked, andthat theengine
cannot bestarted.
Remove theignition key.
I>

Donot smoke orallow anopen flame around
the battery orfuel.
Keep afire extinguisher inclose reach.

I>
Incomplete orimproper servicingmaycause
problems inthe operation ofthe car. Ifin doubt
about anyservicing, haveitdone byyour au-
thorized Porschedealer.
Improper maintenance duringthewarranty pe-
riod may affect yourPorsche warranty cover·
age.

I>
Supplies offluids, e.g.engine oil,brake fluidor
coolant, arehazardous toyour health.
Keep these fluidsoutofchildren's reachand
dispose ofthem inaccordance withtheappro-
priate regulations.

I>
Some countries requireadditional toolsand
special sparepartstobe carried.
Please makeenquiries beforedriving abroad.

CapacitiesUse only fluids andfuels authorized byPorsche. Yourauthorized Porschedealerwillgladly advise you.

Your Porsche hasbeen designed sothat itis not necessary tomix anyadditives withoilsorfuels.
Engine
CoolantManual transmission
and differential
Fuel tank
Fuel quality
Power steering
Brake fluid
Windshield washer
Oil
change quantity withoutoilfilter approx. 9.3quarts/S.75 liters
Oil change quantity withoilfilter approx. 9.6quarts/9.0 liters
Reference indicationisthe level onthe oildipstick.
Please observe thechapter "ENGINE Oil"onPage 114.
approx. 7.39U.S.gallons/28 liters
3.5 quarts/3.3 literstransmission oilSAE 75W-90, Mobilube PTX
approx. 16.6U.S.gallons/63 liters
Your engine isdesigned toprovide optimum performance andfuel economy using

unleaded premiumfuelwith anoctane ratingof98 RON (93CLC orAKI).

Porsche therefore recommends theuse ofthese fuelsinyour vehicle.
Porsche alsorecognizes thatthese fuelsmaynotalways beavailable. Beassured thatyour vehicle
will operate properly onunleaded premiumfuelswithoctane numbers ofatleast
95RON (90CLC orAKI),

since theengine's "Electronic Oktane
™
knock control" willadapt theignition timing,ifnecessary.
approx. 1.35quarts/1.27 literhydraulic fluidPentosin CHF11S®
0.67 quarts/0.63 liters;useonly Original Porsche brakefluid.
approx. 3.19quarts/3 literswithout headlight washer
approx. 6.06quarts/5.7 literswithheadlight washer
TechnicalData

Index

A

ABS (antilock brakesystem) 44,45,54,56
Warning light 54,56
Acoustic warningsignal. 69
Aerodynamic components 9
Air compressor 100
Air conditioning system 90
Air distribution 88,90
Air filter 128
Airbag 38,39
Switching offpassenger airbag 36
Warning light 54,56
Alarm System 24,107
Alcantara 136
Antenna 107,131
Antifreeze 113
Antilock brakesystem (ABS) 44,45
Ashtray 94
Assembly aidsforwheel changes 150
Audio operation 105,106
Auto-button airconditioning system 90,91
Automatic
Airconditioning 90
Car washes 131
Door locking 21
Headlight adjustment... 82
Locking retractor 34
Speed control 54,56,58,86, 87
Average consumption 68
Average speed 68,72

190
Index
B

Backrest Adjustment 30
Release 30,31
Battery 100,155
Warning light.. 54,56,58
Before driving off 14,15
Belt tensioner 32
Belts 32,136
Warning light... 54,56
Blower adjustment 88,90, 93
Brakes 40,119
Distribution warninglight... 54,56
Fluid 119,185
Fluid level 54,56
Fluid warning light 119
Lights 165,171
Pad wear warning light 54,56
Pads 16,43
Parking brakewarning light... 54,56
Break inhints 16
Bulbs Chart 163
Replacing 162

C

Canholder 95
Capacities, overview 185
Car care 130
Car washes 131Cassette
tape
Holder 97
Player
l
06
Catalytic converters 125
Cautions 112,140
Central locking 22
emergency operation 23
Changing wheels 150
Check engine
Warning light.. 54,56,66
Child restraint
Anchorages ,35
Switching offpassenger airbag 37
Syste m 36
Cigarette lighter 94
Circulating airbutton 91
Circulating airsetting 89,91
Clock 54,56,64
Clothes hook 96
Clutch pedal .40
Compact disc
Changer 106
Holder 97
Player
l
06
Compartment monitoring 24
Compressor 91,92
Coolant 62,113
Level 113
Temperature gauge 62
Warning light 62
Cooling system 62,113

Sparekey 19,20
Speed Control 58,86, 87
Gong 69
Speedometer 54,60
analogue display 56
digital display 54,56
Spoiler 104
Starting engine 52
Steering lock 50
Steering wheel
Adjustment 31
Lock 51
Stopping engine 53
Storage options 96,97
Storage tray 97
Storing yourPorsche 137
Sun visors 103

T
Tachometer 54,56,61
Taillight 171
Tank 121,122,185
Ventilation system 126
Technical data 182
Temperature setting 88,90
Theft protection 18
Tires 16,141,184
Pressure 5,143, 183
Pressure compressor 100
Repair kit.. 149
Tires andtirecare 141
Tool kit 100
Towing 177,178 Tracks
184
Transmission 109,183
Fluid 185
Thpwu~r ~
Trunk entrapment 101
Turn signals 61,83,168,171
Indicator lights 54,56

U

Undercoating 124,133

V

Valves 145
Vanity mirror 103
Vehicle Care 130
Data 180,181
Identification label 180
Identification number 100,180
Washing 131
Ventilation 88
Vents 93
Voltmeter 54,56,58

w

Warning lampsandmessages 75
Washer fluid 126,185
Level warning light 54,56
Washing 131
Weights 186
Wheel Bolts 19,150 Changing
149
Wheels 135,184
Windows 26,27, 133
Washer nozzles 84
Washer system 84,126, 185
Windshield wiper/washer lever 84
Windshield wipers 84,85,129
Replacing 129

Winter operation

Battery "157
Coolant. 113
Engine oil 114
Jumper cables 160,161
Locks 132
Seals 134
Snow chains 147
Tires 146,184
Washer fluid 126
Wiper blades 129
Wiper Blades 129
Interval 84,85
Index