2004 PORSCHE 911 GT3 brake

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.

Brake Fluidlevel

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

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Use only new(unused) OriginalPorsche
brake fluid.
A

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

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Keep brake fluidoutofchildren's reach.

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

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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.

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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:

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Stop immediately inasuitable place.

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

19

CarCare Instructions

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

Regular andcorrect carehelps tomaintain
the value ofyour carand isalso a
precondition forthe New Vehicle Warranty
and theAnti Corrosion Warranty.
Your authorized Porschedealerhas
specially developed car-careproductsfrom
the Porsche program available eithersingly
or as complete car-caresets.They willbe
pleased tohelp youselect suitable products.
Whether youusePorsche products orother
commercially availablecleaningagentsfirst
make sureoftheir correct application.

A Porsche thatiswell-cared forcan look likenew
for years.
It
all depends onthe amount ofcare the
owner iswilling togive thecar.

130
Maintenance, CarCare
A

Warning!
Risk ofserious personal injuryordamage to
the vehicle orproperty.
Cleaning agentsmaybehazardous toyour
health.
Most chemical cleanersareconcentrates
which require dilution. Highconcentrations
might cause problems rangingfromirritation
to serious injuryaswell asdamage toyour
vehicle.

t>
Keep cleaning agentsoutofreach fromchil-
dren.

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Observe allcaution labels.

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Always readdirections onthe container before
using anyproduct. Thesedirections maycon-
tain information necessarytoavoid personal
injury.

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Donot use fuel, kerosene, naphtha,nailpolish
remover orother volatile cleaning fluids.They
may betoxic, flammable orhazardous inother
ways. Onlyusespot removing fluidsinawell
vented area.

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Donot clean theunderside ofchassis, fend-
ers, wheel covers, etc.,without protecting
your hands andarms asyou may cutyourself
on sharp-edged metalparts. Moisture
androad saltonbrakes mayaffect brak-
ing efficiency.

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Test thebrakes aftereach vehicle washing.

Washing

The best method ofprotecting yourcarfrom the
damaging effectsofthe environment isfrequent
washing andtheapplication ofapreservative. The
underside ofyour vehicle shouldalsobewashed
thoroughly, atthe latest whensaltisno longer
spread onthe roads.
The longer salt,road dustandindustrial dust,
dead insects, birddroppings orsubstances from
trees (resin, pollen) areallowed toremain onthe
bodywork, themore serious istheir harmful ef-
fect.
New cars should bewashed carefully withplenty
of clear water toprotect thenew paint work. Dark
paint finishes showupthe smallest ofsurface
damage (e.g.,scratches) morereadily thanlighter
colors.
Dark colors arealso more susceptible toscratch-
ing because ofthe composition oftheir pigments
and require particularly carefulpaintcare.

D-
Donot wash yourcarinbright sunlight orwhile
the bodywork isstill hot.

D-
When washing byhand, useabundant water,a
soft sponge orwash brush, andPorsche car
shampoo.

D-
Begin byspraying thebody thoroughly withwa-
ter torinse away loose dirt.
D-

After washing, rinsethecarwith plenty ofwa-
ter and then drywith achamois leather.
Do not use thesame chamois leatherfordry-
ing asyou useforcleaning thewindshield and
windows.

/!\
Warning!
Moisture whichgetsontothe brakes during
a car wash canreduce braking efficiency or
make thebrakes pullunevenly whichcould
increase thedanger ofan accident, causing
serious personal injuriesordeath.

D-
Always applythebrakes afew times after
washing thecartotest braking efficiency and
dry the brake discs.
When doingthis,take care nottohamper other
road users behind you(traffic conditions per-
mitting),

Automatic carwashes

Optional add-onpartsorparts which project
beyond thecontours ofthe vehicle maybe
damaged bydesign features (e.g.brushes) ofau-
tomatic carwashes.
The
following partsareparticularly
susceptible todamage:

- Windshield wipers(always switchthemoffto
prevent themwiping unintentionally inintermit-
tent operation)
- External telephone antennas(alwaysunscrew)
- Roof Transport System(alwaysremove com-
pletely)
- Rear spoiler
- Wheels (thewider therimand thelower thetire
height, thegreater therisk ofdamage)
- High-gloss wheels(toprevent thesefromget-
ting scratched, donot clean withthewheel-
cleaning brushesofthe carwash).

D-
Please consult theoperator beforeusingauto-
matic carwashes.

D-
Wash anddrybyhand allpoints notreached by
a car wash, suchasdoor andlidseams or
door sills.

Note

Automatic carwashes spraywater atodd angles
and high pressures, whicharenotseen innormal
driving. Therefore, watercansometimes findits
way intothepassengers compartment duringor
shortly afterthecarwash.

D-D- D-

Maintenance, CarCare

Lightalloywheels

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Please observe thechapter "WASHING" on
Page 131.
Pitting mayoccur ifmetallic particles whichcause
contact corrosion (e.g.brass orcopper inbrake
dust) areallowed toremain onthe aluminum for
too long.

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Ifpossible, washthewheels withasponge or
wash brush about everytwoweeks. Inareas
where saltisspread onwinter roadsorthere
is alot ofairborne industrial dust,itis best to
clean thewheels weekly.

The Porsche LightAlloyWheel Cleaner
(ph-value 9.5)canbeused forthis pur-
pose.
If the ph-value ofthe detergent isincor-
rect, theprotective coatingonthe wheels

will
bedestroyed.
Polishes whichdissolve oxides,suchasthose
frequently usedforother metals, orabrasive
tools oragents areunsuitable becausethey
break downtheoxide filmofthe protective
coating andwillcause discoloration ofthe
wheel.

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Every threemonths, aftercleaning, coatthe
wheels withacar wax ornon-<:orrosive grease
(vaseline).
Using aclean cloththoroughly rubthe grease
into thesurface.
Leather

Characteristics andspecial features

The natural surface markings ofleather, e.g.
creases, healedscars,insectstingmarks, struc-
tural differences andslight variations inshade and
grain addtothe attractiveness ofthe natural leath-
er product.
A special mention mustbemade hereofnatural
leather.
For natural leather, carefully selected hidesofthe
highest qualityareused. Itis not covered com-
pletely withdyeonproduction.
"Nature's signature" istherefore easilyrecognis-
able.
This finematerial isdistinguished byanoutstand-
ing seating comfort, specialsuppleness andatyp-
ical patina.
Leather
careandtreatment

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Clean alltypes ofleather regularly toremove
fine dust using asoft, damp, whitewoollen
cloth oracommercially availablemicrofibre
cloth.

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Remove heavycontamination withPorsche
leather cleaner.
Please alwaysfollowtheinstructions foruse
given onthe containers.

Caustic cleaners andhard cleaning objects
must notbeused.
Perforated leathermustunder nocircum-
stances getwet onitsreverse side.

Once cleaned, leather(particularly theheavily
stressed leatherseats)mustbetreated onlywith
Porsche leathercareliquid.

I>I>I>

Maintenance, CarCare
135

Exercise ExtremeCautionwhen
Working onyour Vehicle

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

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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.

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Only work onyour vehicle outdoors orinawell
ventilated area.

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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.

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

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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
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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.

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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.

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

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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.

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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.

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

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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

Tirewear

The original equipment tiresonyour Porsche have
built-in tirewear indicators. Theyaremolded into
the bottom ofthe tread grooves andwillappear as
approximately 1/2in(12 mm) bands whenthetire
tread depth isdown to1/16 ofan in(1.6 mm).
When theindicators appearintwo ormore adja-
cent grooves, itis time toreplace thetires. We
recommend, however,thatyoudonot letthe tires
wear down tothis extent.
Worn tirescannot griptheroad surface properly
and areeven lesseffective onwet roads.
In the United States, statelawsmaygovern the
minimum treaddepth permissible. Followallsuch
laws.
PracticalTips,Emergency Service
/!\

Warning!
Driving onworn tirescanresult inloss of
control ofthe vehicle andcould cause severe
personal injuries.

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Donot drive withworn tiresortires showing
cuts orbruises asthey mayleadtosudden
deflation andloss ofcontrol whichcouldcause
severe personal injury.

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Specialized highperformance tiresonhigh
performance sportscarsexhibit morewear
than those onafamily sedan, oreven ahigh
performance sedan.
Therefore, itis important tocheck yourtire
pressure andcondition atleast every two
weeks.
If you notice thattires arewearing unevenly, con-
sult your Porsche dealer.
Uneven wearmaynotalways bedue toimproper
wheel alignment. Itcan bethe result ofindividual
driving habitssuchascornering athigh speeds. If
the tire pressure isnot checked andadjusted
regularly, abnormal tirewear canalso occur.
Tire
care

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Avoid damaging tiresandwheel rims.

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Ifyou must driveoveracurb orother obstacle,
drive slowly andatan obtuse angle.

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Check tiresforuneven wearanddamage
before driving off.

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Remove imbedded material.

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Replace wornordamaged tiresimmediately.

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Keep oil,fuel, brake fluid,etc.away fromtires.

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Replace missingvalvestemcaps.

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Keep tiresinflated correctly.