2004 PORSCHE 911 GT3 check engine light

Octane ratings

The CLC orAKI octane ratingisusually lowerthan
the RON rating:
For example: 95RON equals 90CLC orAKI
Unleaded
fuelsmaynotbeavailable outsidethe
continental U.S.andCanada. Therefore, werec-
ommend youdonot take your cartoareas or
countries whereunleaded fuelmay notbeavail-
able.
Octane ratingindicates afuel's ability toresist det-
onation. Therefore, buyingthecorrect octanegas
is important toprevent engine"damage".
The RON octane ratingisbased onthe research
method. TheCLC (U.S. CostofLiving Council oc-
tane rating) orAKI (antiknock index)octane rating
usually displayed onU.S. fuelpumps iscalculated
as research octanenumber plusmotor octane
number, dividedby2,that iswritten as:
Fuels
containing MMT

Some NorthAmerican fuelscontain anoctane en-
hancing additive calledmethylcyclopentadienyl
manganese tricarbonyl(MMT).

If
such fuels areused, youremission controlsys-
tem performance maybenegatively affected.
The check engine warning lightonyour instrument
panel mayturnon.

If
this occurs, Porsche recommends youstop us-
ing fuels containing MMT.
Portable FuelContainers

/!\
Danger!
Portable fuelcontainers, fullorpartially
empty, mayleakcausing anexplosion, orre-
sult infire incase ofan accident.

D>
Never carryadditional fuelinportable contain-
ers inyour vehicle.

Fuels
containing alcoholandether

Some areasofthe U.S. require oxygenated fuels
during certain portions ofthe year. Oxygenated fu-
els are fuels which contain alcohols (suchasmeth-
anol orethanol) orether (such asMTBE).
Under normal conditions, theamount ofthese
compounds inthe fuel willnot affect driveability.
You may useoxygenated fuelsinyour Porsche,
provided theoctane requirements foryour vehicle
are met. Werecommend, however,tochange to
a different fuelorstation
if
any ofthe following
problems occurwithyour vehicle:
- Deterioration ofdriveability andperformance.
- Substantially reducedfueleconomy.
- Vapor lockandnon-start problems, especially
at high altitude orathigh temperature.
- Engine malfunction orstalling.
R+M

-2-

or

RON+MON

2

Maintenance,CarCare
123

Storing yourPorsche

If you intend tostore yourPorsche foraprolonged
period, pleaseconsult yourauthorized Porsche
dealer. Thestaff willbeglad toadvise youonthe
most suitable andnecessary methods.
r> Clean yourvehicle thoroughly insideandout-
side.
Clean theengine compartment.
The under carriage andchassis components
should befree ofdirt and saltdeposits.
r> Fillupthe fuel tank.
r> Change theoiland oilfilter, andrunthe engine
for several minutes.
r>

Increase thetire pressure to58 psi (4bar).
It is not recommended tolift the vehicle, dueto
the possibility ofcorrosion onshock absorber
piston shafts.
The vehicle shouldbemoved slightly, approxi-
mately everyfourweeks, toprevent flatspot
on the tires.

Climate control

The airconditioning systemshouldbeingood
working condition andfully charged.

WindshieldjHeadlight washer

r> Check andcorrect antifreeze/cleaning solu-
tion level asnecessary.

Electrical system

r> Remove thebattery fromthevehicle andstore
it in acool dryplace, notonacement floor.

When thebattery isdisconnected, the
alarm system isdeactivated.

r> Recharge thebattery every3months. Ifthe
battery remains inthe vehicle withthecables
connected, itis necessary tocheck, remove
and recharge thebattery every2-3weeks.

Do not fast charge thebattery.

r> Please observe thechapter "SATTERY" on
Page 155.
Vehicle
interior

The interior mustbedry, especially inthe area of
the floor carpets. Theuseofdrying agents (Silica-
Gel) isrecommended invehicles withleather inte-
rior and inareas withhighhumidity. Therecom-
mended amountis3fabric bagsof1.1 Ibs.
(500 grams) eachplaced onthe floor carpets.
Windows, doorsandlidsmust beclosed. Theair
flaps should beopened.
Maintenance, CarCare

Tail
light
left

Taillight

Changing bulb

1. Open lidofengine compartment.
2. Unscrew fastening screwAand pulltaillight
back (arrow) andout.
A
-Taillight, brakelight

B -
Reversing light
C -Turn signal light

o -Rear
foglight

E -
Side marker light

3. Turn bulbholder counter-clockwise and
remove fromtaillight.
4. Replace defective bulb(bayonet mount).
5. Insert bulbholder andturn clockwise. 6.
Insert taillight inthe fender.
Ensure thatlocating lug(arrow) iscorrectly
positioned.
7. Screw infastening screwA.
8. Check operation ofthe light.
Practical Tips,Emergency Service
171

License PlateLights

Changing bulb

1. Undo bothscrews Aand remove light.
2. Push rubber covering back,remove defective
bulb from between thecontact springsand
replace.
3. Reassemble inreverse order.
Check operation ofthe light.
Practical Tips,Emergency Service
Luggage
Compartment Light,
Engine Compartment Light,
Footwell Lights

Changing bulb

1. With ascrewdriver (arrow),carefullypress
light outofthe cutout inthe lining.
2. Remove defective bulbfrom between thecon-
tact springs andreplace.
3. Insert thelight intothecutout firstfrom one
side then from theother. Check operation.
Door
Guard /Curb Light

Changing bulb

1. With ascrewdriver (arrow),carefully pushout
the light.
2. Pull bulb holder outoflight housing.
Remove defective bulbandreplace.
3. Install bulbholder andinsert light.

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

Temperaturgauge 54,56
Warning light 54,56
Cruise contro!. 58,86,87
Curb light 172
D
Dashboard 48
Defrosting windows 29,90, 91
Diagnostic socket 17,153
Diagrams 187
Dimensions 186
Door 21
Guard 172
Handles 21
Locks 21,132
Windows 21,26,27,133
Door mirror 28
Heating 29
Driving hints 14
Driving performance 182
E
Electrical system 152
Emergency flasher 81
Emergency operation
Central locking 23
Lids 154
Tank flap 121
Emergency service 140
Emergency startingwithjumper cables160,161
Emission controlsystem 7,66, 124, 125
Engine Checking oillevel 71,115 Dipstick
116
Exhaust 10
Number 180
Oil consumption 16,114
Oillevel 116
Oil level gauge 71
Oil pressure gauge 54,56,65
Oil pressure warninglight.. 54,56,65
Oils 114,185
Speeds 16,182
Starting 52
Stopping 53
Engine compartment
Blower 53,62
Lid 98,99
Lid warning light.. 54,56,98
Light 172

F

Fog lights 82,169, 171
F ootbrake 41
Footweillights 47
Fresh airintake 93
Front hood 99
Fuel 4,63, 121
Containers 10
Economy 120
Evaporation control 126
Level gauge 54,56,63
Level warning light 63
Recommendation 122,123
Tank 122
Warning light... 54,56
Fuses 153
G

Garage lift 148
Gearshifting 109
Glove compartment. 96
Gong 18,51, 69, 79
Ground clearance 9,186
H
Headlights 82,83,164
Adjusting 175,176
Cleaning system 84,126, 185
Heated rearwindow 29
Heating 88
High beam
Indicator light... 54,56,61
Lever 82
Hoods 98,99
Horn 17,22, 23

I

Identification number 100,180
Ignition lock 50
Immobilizer 19
Indicator lights 54
Infrared passenger compartment monitoring..24
Instrument panel 48
Instruments 54
Lights 59,82
Interior light 46,173
Interior mirror 28
Intermittent operationswitch 84
Index

J

Jumper cables "145,160

K

Keys 19,20

L

Leather care 135
License platelight.. 82,172
Lids 99
Emergency unlocking 154
Light
Flasher 61,82, 83
Low beam 82,83
Switch 82,83
Light sensor forinstrument illumination 54,56
Load switch-off 152
Locking "22
Conditions 23
Luggage carrier 186
Luggage compartment.. 100,172
Lid 98
Lid warning light 54,56,98

M

Maintenance 112
Make-up mirror 103
Maximum permitted enginespeeds 16
Mirrors 28
Monitoring 24

192
Index
N

Notes on
Car care "130
Maintenance 112
Number platelight "82,172

o

Octane rating 122,123
Odometer 59
Oil 114,185
Consumption 16
Dipstick 116
Level checks
ll,
115
Level gauge
II

Pressure gauge 54,56,65
Pressure warninglight.. 54,56,65
On-board computer 54,56,67
Basic setting 68,73
Language selection 73
On-board literature 2
Orientation light 46
Outside-temperature display 68

p

Paint Care 130
Data 180
Parking
Brake 40,41
Brake warning light... 54,56
Light 82,168, 171
Particle filter 128Passenger
airbag,switching off 37
Passenger compartment monitoring,infrared..24
Plastic parts 134
Platform lift. 148
Power measurements 112
Power steering fluidlevel 127,185
Power windows 21,26,27
Practical tips 140

R

Radiator fan 53,114
Radio reception 105
Rear foglight... 82,
III

Rear spoiler 104
Rear viewmirrors 28
Rear window defogger 29
Relays 152
Remote control 20
Replacement key 19
Replacing bulbs 162
Replacing wiperblades 129
Roof Transport System 108,186
Running in 16

S

Safety belts 32,136
Warning light... 54,56
Safety compliance sticker 181
Seals 134
Side marker light... 82,170,
III

Side member panels 104
Snow chains 147
Snow tires 146