2004 PORSCHE 911 GT3 stop start

o
Voltmeter

Indicates thebattery voltage.
Normal range:12to16 volts.
The voltage maydrop considerably whenthe
vehicle isbeing started.

If the gauge iscontinually below12volts
when theengine isrunning:

t>
Have thebattery charging systemchecked at
an authorized Porschedealer.
Controls, Instruments
BaHery

• Warning light

The warning lightinthe instrument panelcomes
on when ignition isswitched onand must gooff
when engine isrunning.

If the warning lightsinthe instrument panel
and on-board computer comeonwhile the
engine isrunning orwhile driving:

t>
Stop thecarinasafe place andstop the
engine.

Possible causes

- Defect inthe battery charging system.
- Broken drivebelt.

A
Warning!
Risk ofan accident andriskofengine dam-
age.
A broken drivebeltmeans thereisno power
assistance tothe steering (moreeffortisre-
quired tosteer) andcoolant pumpfunction
will stop.

t>
Donot continue driving.

t>
Have thefault remedied atthe nearest autho-
rized Porsche dealer.
A
-
Adjustment buttonforinstrument illumination and
trip counter

•. ~ Automatic SpeedControl

Indicator light

Indicates automatic speedcontrol readiness.

FuelEconomy

Fuel economy willvary depending onwhere,
when andhow youdrive, optional equipment
installed, andthegeneral condition ofyour
car.
A car tuned tospecifications andcorrectly
maintained, willhelp youtoachieve optimal
fuel economy.

~ Have yourvehicle tunedtospecifications.
Air cleaner shouldbedirt free toallow proper
engine "breathing".
Battery shouldbefully charged.
Wheels shouldbeproperly aligned.
Tires should beinflated atcorrect pressure.
~ Always monitor yourfuelconsumption.
~ Drive smoothly, avoidabrupt changes inspeed
as much aspossible.
~ Avoid jackrabbit startsandsudden stops.
~ Donot drive longer thannecessary inthe lower
gears. Shifting intoahigher gearearly without
lugging theengine willhelp save fuel.
~ Prolonged "warmup"idling wastes gas.Start
the vehicle justbefore youareready todrive.
Accelerate slowlyandsmoothly.
~ Switch offthe engine ifstationary forlonger
periods.
Maintenance, CarCare ~
Any additional weightcarried inthe vehicle re-
duces fueleconomy. Alwayskeepcargo toa
minimum andremove allunnecessary items.
~ Organize yourtripstotake inseveral errands
in one trip.
~ Allelectrical accessories contributetoin-
creased fuelconsumption.
~ Only switch onthe airconditioning whenneces-
sary.
~ Donot drive withtheRoof Transport System
mounted unlessyouneed it.

The EPA estimated m.p.g.isto be used for
comparison purposes,actualmileage may
be different fromtheestimated m.p.g.,
depending onyour driving speed,weather
conditions andtriplength. Youractual
highway mileagewillprobably beless than
the estimated m.p.g.

~ Please observe alllocal andnational speed
limits.
Operating
YourPorsche inother
Countries

Government regulationsinthe United States and
Canada requirethatautomobiles meetspecific
emission regulations andsafety standards. There-
fore, carsbuiltforthe U.S. andCanada differfrom
vehicles soldinother countries.
If you plan totake your Porsche outsidetheconti-
nentallimits ofthe United States orCanada, there
is the possibility that
- unleaded fuelmay notbeavailable;
- unleaded fuelmay have aconsiderably lower
octane rating.Excessive engineknockandse-
rious damage toboth engine andcatalytic con-
verters couldresult;
- service maybeinadequate duetolack ofprop-
er service facilities, toolsordiagnostic equip-
ment;
- replacement partsmaynotbeavailable orvery
difficult toget.

Porsche cannotberesponsible forthe
mechanical damagethatcould result
because ofinadequate fuel,service orparts
availability.

If you purchased yourPorsche abroadandwant to
bring itback home, besure tofind outabout ship-
ping andforwarding requirements, aswell ascur-
rent import andcustoms regulations.

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

Power Steering
Power steering isassisted byhydraulic auxiliary
forces.
The hydraulic fluidreservoir islocated inthe en-
gine compartment.

Note

The flow noise heard atfull steering lockisdesign-
related anddoes notindicate adefect inthe steer-
ing syste m.
A

Warning!
Risk ofaccident.
When theengine isstopped
(e.g.
when on
tow) orthe hydraulic systemfails,there isno
assistance forsteering.
Therefore, substantially moreforce willhave
to be exerted inorder tosteer.

I>
Exercise greatcarewhen being towed.

t>
Have thefault remedied atyour nearest autho·
rized Porsche dealer.
Checking
hydraulicfluid

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

I>
Only usehydraulic fluidauthorized byPorsche.
Specification:
Please observe thechapter "CAPACITIES" on
Page 185.
Check thefluid level withtheengine stopped and

cold
(approximately 68°F
j20°C).

1. Start theengine andletitidle forapprox.
20 seconds.
Switch offthe engine.
2. Open theengine compartment lid.
3. Open thereservoir cap.
4. Wipe measuring rod.
Close lidand reopen. Thefluid level should lie
in the area ofthe "Cold" marking.
Add hydraulic fluidifnecessary.
5. Close capcarefully.
Close engine compartment lid.
Noticeable lossoffluid indicates leakageinthe
system.
The cause should beremedied immediately atan
authorized Porschedealer.
Maintenance, CarCare
J.27

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

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