tow PORSCHE 911 GT3 2004 5.G Owner's Manual

Exercise ExtremeCautionwhen
Working onyour Vehicle

/!\
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.

Brake Fluidlevel

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

I>
Use only new(unused) OriginalPorsche
brake fluid.
A

Warning!
Brake fluidishazardous toyour health, and
may befatal ifswallowed.
Brake fluidalsoattacks paintwork.

I>
Keep brake fluidoutofchildren's reach.

I>
Take carewhile topping offbrake fluidnotto
soil theluggage compartment oritems oflug-
gage .
Checking thebrake fluidlevel
The reservoir forthe hydraulic brakingsystems is
in the luggage compartment.

I>
Check thebrake·fluid levelregularly atthe
transparent reservoir.
The fluid level should always liebetween the"MIN"
and "MAX" marks.
A slight decrease inthe fluid level duetowear and
automatic readjustment ofthe disc brakes isnor-

mal.
If, however, thefluid level fallsmarkedly orbelow
the "MIN" mark, thebraking systemmayhave
developed aleak.

I>
Have thebraking systemchecked immediately
at an authorized Porschedealer. Changing
thebrake fluid
Brake fluidabsorbs moisture fromtheairover
time. Thisaccumulation ofwater lowers theboil-
ing point and,under certain operating conditions,
can affect thebraking action.
Therefore havethebrake fluidchanged inaccor-
dance withthechange intervals statedinthe
brochure "Maintenance".
• Warning lightUSA

G
Warning lightCanada
The brake-fluid warninglightsinthe instrument
panel andon-board computer indicate:
- brake-fluid leveltoolow,
- inconjunction withlarge pedal travel,
a braking-circuit failure.

If the warning lightsshould lightupwhile
driVing:

I>
Stop immediately inasuitable place.

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Donot continue driving.
Please havethefault remedied atyour nearest
authorized Porschedealer.
Maintenance, CarCare

19

HowEmission ControlWorks

When anautomobile engineisrunning, ituses en-
ergy generated throughthecombustion ofamix-
ture ofair and fuel. Depending onwhether acar is
driven fastorslowly orwhether theengine iscold
or hot, some ofthe fuel (hydrocarbons) maynot
be burned completely, butmay bedischarged into
the engine crankcase orexhaust system.Additon-
al hydrocarbons mayenter theatmosphere
through evaporation offuel from thefuel tank.
These hydrocarbons
(He),
when released intothe
air, contribute toundesirable pollution.
In addition, carbonmonoxide (CO)andoxides of
nitrogen (NOx)contribute toengine emissions.
They, too,areformed duringthecombustion pro-
cess anddischarged intotheexhaust system.
To reduce thesepollutants, yourPorsche is
equipped withaprecisely calibrated fuelinjection
system toassure afinely balanced air/fuelmixture
under alloperating conditions.
Oxygen
sensor

The oxygen sensor, installed inthe exhaust pipe
continuously sensestheoxygen content ofthe
exhaust andsignals theinformation toan electron-
ic control unit.Thecontrol unitcorrects theair/
fuel ratio, sothe engine always receives anaccu-
rately metered air/fuelmixture.

Crankcase ventilation

Through crankcase ventilation, undesirable emis-
sions fromtheengine crankcase arenotpermit-
ted toreach theoutside atmosphere. Theseemis-
sions arerecirculated fromthecrankcase tothe
air intake system. Fromheretheemissions mix
with theintake airand arelater burned inthe en-
gine.

Catalytic converters

The catalytic converters areefficient "clean-up"
devices builtintotheexhaust systemofthe vehi-
cle. The catalytic converters burntheundesirable
pollutants inthe exhaust gasbefore itis released
into theatmosphere.

The exclusive useofunleaded fueliscritical-
ly important forthe lifeofthe catalytic con-
verters. Therefore, onlyunleaded fuelmust
be used. The
catalytic converters willbedamaged by:

- push ortow starting thevehicle
- misfiring ofthe engine
- turning offthe ignition whilethevehicle ismov-
ing or
- driving untilthefuel tank iscompletely empty
- byother unusual operating conditions.

t>
Donot continue tooperate yourvehicle under
these conditions, sincerawfuelmight reach
the catalytic converters. Thiscould result in
overheating ofthe converters. Federallawpro-
hibits useofleaded fuelinthis car.
Maintenance, CarCare
125

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

Doorlocks

t>
Toprevent thedoor locks fromfreezing during
the cold season, thelock cylinders shouldbe
covered duringawash.

t>
Should thelocks freeze, useanordinary de-
icer. Inmany cases, awell warmed keycan
help. Never useexcessive force.

Paint

t>
Never rubadusty carwith adry cloth since
dust particles areabrasive andcould dulland
damage thesurface finish.
The paintwork ofyour carisexposed toall types
of mechanical andchemical conditions, particular-
ly climatic onessuchasbright sunlight, rain,frost
and snow. Ultraviolet light,rapid changes intem-
perature, rain,snow, industrial dustandchemical
deposits constantly attackthepaint which isonly
able towithstand suchexposure inthe long term

if
itis given regular careandattention.

t>
Donot apply silicone polishes tothe windshield
or windows.

t>
Donot treat matt-painted componentswith
preservatives orpolishes asthis willspoil the
matte effect.

132
Maintenance, CarCare Preservation
The paint surface becomes dullover timedueto
weathering. Itis therefore necessary topreserve
the paint regularly.
This keeps thepaint shiny andelastic. Dirtispre-
vented fromadhering tothe paint surface andin-
dustrial dustisprevented frompenetrating the
paint.
Provided itis washed andtreated withpreserva-
tive regularly, thebrand newfinish ofyour carwill
be retained foryears tocome.

t>
Apply thePorsche paintpreservative afterthe
car wash andpolish itdry toobtain abright fin-
ish orsimply addaliquid preservative regularly
to the final rinse water.
Polishing Do not resort tousing Porsche polishuntilitbe-
comes evident thatthenormal preservatives no
longer produce thedesired finish.
Spots andstains

t>
Remove tarstains, grease, oilspots anddead
insects assoon aspossible withInsect Remov-
er. They cancause discoloration ifallowed to
remain onthe paintwork.

t>
Wash theaffected areaimmediately aftertreat-
ing it. Minor
paintdamage

t>
Have minor paintdamage, suchasscratches,
scores orchips caused byflying stones, re-
paired immediately byyour authorized
Porsche dealerbefore corrosion setsin.
However, ifthere arealready tracesofcorrosion,
they must firstberemoved carefullyandthorough-
ly. Coat thearea witharust-proofing primerand
finish offwith atop coat. Thepaint code andcolor
number arefound onthe vehicle's paintdataplate.

PracticalTIps,Emergency Service

Caution 140
Tires;Wheels 141
Lifting theVehicle 148
Flat Tire 149
Wheel Bolts 150
Electrical System 152
Battery , ,155
Emergency StartingwithJumper Cables 160
Lights, Replacing Bulbs 162
Headlights , "164
Adjusting Headlights 175
Towing 177
Practical Tips,Emergency Service

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.

lires/Wheels
The original equipment tiresandwheel rimson
your Porsche complywithallapplicable Federal
Motor Vehicle SafetyStandards.

For your safety remember thefollowing:

- Wheel rimsandwheel boltsarematched tofit
your Porsche.
- Ifyou intend touse other thanoriginal equip-
ment wheels, besure thatthey conform to
Porsche specifications foryour model.
Only tires withthesame makeandwith the
same specification code(e.g.
"NO", "Nl"..
J

can bemounted.
- The useofwheel rimsandwheel boltsthatdo
not meet specifications ofthe original factory
installed equipment willaffect thesafe opera-
tion ofyour vehicle.
- Before youplan onexchanging wheels,or
snow tiresalready mounted onthe wheel rims,
consult yourauthorized Porschedealer.Your
dealer hasthetechnical information necessary
to advise youwhich wheel rimsandwheel bolts
are compatible withtheoriginal factoryinstal-
lations.
A

Warning!
Risk ofloss ofcontrol andserious personal
injury.

I>
Ifwhile driving, yourvehicle experiences asud-
den vibration orride disturbance, and/oryou
suspect thatpossible damagetoyour tires or
vehicle hasoccurred, youshould immediately
reduce yourspeed without excessive useof
the brakes.

I>
Stop thevehicle assoon aspossible, andin-
spect thetires.
If you cannot determine thecause forthe dis-
turbance, haveyourvehicle towedtothe near-
est Porsche ortire dealer tohave yourvehicle
or tire(s) inspected.

I>
Continuing tooperate thevehicle without cor·
rection couldresult inaloss ofcontrol and
serious personal injury.
PracticalTips,Emergency Service
141

Emergency StartingwithJumper
Cables

If the battery isdischarged, e.g.inwinter orafter
the car has been parked foralong time, thebat-
tery ofanother carcan beused forstarting with
the help ofjumper cables.
Make surethevoltage ofboth batteries isthe
same.
The capacity (Ampere hours,Ah)ofthe booster
battery mustnotbesubstantially lessthan thatof
the discharged battery.
The discharged batterymustbecorrectly con-
nected tothe vehicle's electrical system.

I>
Please observe thechapter "BATTERY" on
Page 155.

I>
Please observe thechapter "EMERGENCY UN-
LOCKING OFTHE LUGGAGE COMPARTMENT
LID AND ENGINE COMPARTMENT LID"on
Page 154.

Note

I>
Donot trytostart thecarbypushing ortow-
ing. Damage tothe catalytic converters and
other components ofthe car may result.

160
PracticalTips,Emergency Service
A

Warning!
Risk ofdamage andserious personal injury
due toshort circuit.

I>
Use only jumper cablesofadequate diameter
cross-section andfitted withcompletely insu-
lated alligator clips.

I>
Follow allwarnings andinstructions ofthe
jumper cablemanufacturer.

I>
When connecting jumpercables, makesure
that they cannot getcaught inany moving
parts inthe engine compartment.
The jumper cablesmustbelong enough so
that neither vehicles norcables touchanother.

I>
The vehicles mustnotbeincontact, otherwise
current mightflowassoon asthe positive ter-
minals areconnected.

I>
The cable clamps mustnotbeallowed tocon-
tact each other whenoneendofthe jumper ca-
bles areconnected toabattery.

I>
Ensure thattools orconductive jewellery
(rings, chains, watchstraps) donot come into
contact withliveparts ofthe vehicle.

I>
Improper hook-upofjumper cablescanruin
the alternator.
Danger
ofcaustic burns.

I>
Donot lean over thebattery.

Danger ofgas explosion.

I>
Improper useofbooster batterytostart a
vehicle maycause anexplosion, resultingin
severe personal injuries.

I>
Keep sources ofignition awayfromthebat-
tery, e.g.open flame, burning cigarettes or
sparking duetocable contact orwelding work.

I>
Adischarged batterycanfreeze evenat

WFj-lOoC.

Before connecting Jumpercables, afrozen bat-
tery must bethawed out.

Towing
Certain statestatutes andlocal ordinances prohib-

it
towing withachain, ropeoreven atow bar.
In addition, damagetoyour vehicle mayresult
from improper procedures.
Consult yourauthorized Porschedealerforde-
tails.

Vehicle towing

Flat bed towing isthe preferred typeoftowing to
be used onPorsche vehicles.
Under certain circumstances, wheelliftsmay be
used when thevehicle willnotroll.

The vehicle mustbetowed withallfour
wheels offthe ground, otherwise damageto
the vehicle mayresult.

Towing eye

The towing eyeiscontained inthe tool kit.

A
Caution!
Risk ofdamage tothe vehicle.

'" Use thetowing eyeonly foranemergency to
remove thevehicle offthe road. Thetowing
eye isto be used onlytopull thevehicle onto
the flat bed, tractor ortowing aparatus ifthe
vehicle willrollfreely. Undernocircumstances
is the vehicle tobe secured usingthetowing
eye. '"
Never usethetowing eyetotow thisorany
other vehicle.

Front mounting

1. Carefully removetheplastic capbeside the
license platewithascrew driver.
2. Screw thetowing eyeintothehole.
Rear
mounting

1. Remove licenseplate.
2. Carefully removetheplastic capbetween the
bumpers withascrew driver.
3. Screw thetowing eyeintothehole.

t> t>t>

Practical Tips,Emergency Service
177