oil change PORSCHE 911 CARRERA 2005 5.G Owners Manual

3
Regularly check your vehicle for signs of
damage.
Damaged or missing aerodynamic compo-
nents such as spoilers or underside panels
affect the driving behavior and therefore
must be replaced immediately.
Your car may have all or some of the components
described in this manual.
Should you have difficulty understanding any of
the explanations of features or equipment installed
in your vehicle, contact your authorized Porsche
dealer. He/She will be glad to assist you. Also
check with your dealer on other available options
or equipment.
Throughout this booklet, left is designated as the
driver’s side of the vehicle, and right as the pas-
senger’s side of the vehicle.
Text, illustrations and specifications in this manual
are based on the information available at the time
of printing.
It has always been Porsche’s policy to continuous-
ly improve its products. Porsche, therefore, re-
serves the right to make changes in design and
specification, and to make additions or
improvements in its product without incurring any
obligation to install them on products previously
manufactured.
We wish you many miles of safe and pleasurable
driving in your Porsche.
Important
For your own protection and longer service life of
your car, please follow all operating instructions
and special warnings. These special warnings use
the safety alert symbol, followed by the words
Danger, Warning and Caution. These special
warnings contain important messages regarding
your safety and/or the potential for damage to
your Porsche. Ignoring them could result in seri-
ous mechanical failure or even physical injury.
fDo not alter your Porsche. Any alteration could
create dangerous conditions or defeat safety
engineering features built into your car.
fDo not misuse your Porsche. Use it safely, and
consistently with the law, according to the driv-
ing conditions, and the instructions in this man-
ual.
Alteration or misuse of your Porsche could
cause accidents and severe or fatal personal
injuries.
Note to owners In Canada, this manual is also available in French.
To obtain a copy contact your dealer or write to: Note aux proprietaires Au Canada on peut se procurer un exemplaire de
ce Manuel en français auprès du concessionaire
ou du:
Porsche Cars Canada, Ltd.
Automobiles Porsche Canada, LTEE
5045 Orbitor Drive
Building #8, Suite 200
Mississauga, Ontario
Canada L4W 4Y4
Telephone number for customer assistance:
1-800-PORSCHE / Option 3

Controls, Instruments
15
In the driver’s seat... fCheck operation of the horn.
fPosition seat for easy reach of foot pedals and
controls.
To reduce the possibility of injury from the
airbag deployment, you should always sit back
as far from the steering wheel as is practical,
while still maintaining full vehicle control.
fAdjust the inside and outside rear view mirrors.
fBuckle your safety belts.
fCheck operation of the foot and parking brake.
fCheck all warning and indicator lights with
ignition on and engine not running.
fStart engine and check all warning displays for
warning symbols.
fNever leave an idling car unattended.
fLock doors from inside, especially with chil-
dren in the car to prevent inadvertent opening
of doors from inside or outside.
Drive with doors locked.
On the road... fNever drive after you have consumed alcohol
or drugs.
fAlways have your safety belt fastened.
fAlways drive defensively.
Expect the unexpected.
fUse signals to indicate turns and lane changes.
fTurn on headlights at dusk or when the driving
conditions warrant it.
fAlways keep a safe distance from the vehicle in
front of you, depending on traffic, road and
weather conditions.
fReduce speed at night and during inclement
weather.
Driving in wet weather requires caution and re-
duced speeds, particularly on roads with
standing water, as the handling characteristics
of the vehicle may be impaired due to hydro-
planing of the tires.
fAlways observe speed limits and obey road
signs and traffic laws.
fWhen tired, get well off the road, stop and take
a rest. Turn the engine off. Do not sit in the ve-
hicle with engine idling.
Please observe the chapter “ENGINE EX-
HAUST” on Page 9.fWhen parked, always set the parking brake.
Move the Tiptronic selector lever to ”P“ or the
gearshift lever to reverse or first gear.
On hills also turn the front wheels toward the
curb.
fWhen emergency repairs become necessary,
move the vehicle well off the road. Turn on the
emergency flasher and use other warning de-
vices to alert other motorists. Do not park or
operate the vehicle in areas where the hot ex-
haust system may come in contact with dry
grass, brush, fuel spill or other flammable ma-
terial.
fMake it a habit to have the engine oil checked
after every fuel filling.

56
Controls, Instruments
Retractable Rear SpoilerThe rear spoiler reduces rear axle lift, particularly
at high speeds.
Warning!
Risk of accident. If the rear spoiler cannot be
extended, driving stability will be adversely
affected by increased rear axle lift, which
could lead to loss of control.
fAdapt your driving style and speed to the
changed driving behaviour.
fHave the fault remedied at an authorized
Porsche dealer.
Risk of injury during manual retraction or
extension of the rear spoiler with the vehicle
stationary.
fMake sure that no persons or objects are
within the range of movement of the rear
spoiler.
Risk of damage from pushing the vehicle by
the spoiler.
fDo not push the vehicle at the spoiler.
Automatic modeThe limits for automatic extension and retraction
of the spoiler depend on various circumstances
(e.g. driving speed, engine compartment temper-
ature).
Engine compartment temperature
under 122°F/55°C
Spoiler extends at 75 mph/120 km/h and
retracts at 37 mph/60 km/h.
Engine compartment temperature
over 140°F/60°C
Spoiler extends at 50 mph/80 km/h and retracts
at 19 mph/30 km/h.
If automatic control fails, a warning message is
displayed by the on-board computer.

Controls, Instruments
57
When the ignition is on, the rear spoiler can be
extended and retracted manually using the button
in the center console.
Extending
fPress button briefly.
The spoiler extends to its final position.
The light-emitting diode in the button lights up.Retracting a manually extended rear spoiler
fat speeds between 0 and 20 mph
(0 and 30 km/h)
Press and hold button until the rear spoiler has
reached its final position.
The light-emitting diode in the button goes out.
The rear spoiler changes to automatic mode.
fat speeds between 20 and 60 mph
(30 and 100 km/h)
Press button briefly.
The rear spoiler retracts, the light-emitting
diode in the button goes out.
The rear spoiler changes to automatic mode.
fat speeds over 60 mph (100 km/h)
Press button briefly.
The rear spoiler remains extended, the light-
emitting diode in the button goes out.
The rear spoiler changes to automatic mode.
Manual control

108
Controls, Instruments
Oil temperature gauge faulty Have the fault remedied at an authorized
Porsche dealer.
Indicator faulty Coolant indicator failed.
Have the fault remedied at an authorized
Porsche dealer.
Brake pad wear Have the brake pads changed immediately at an
authorized Porsche dealer.
Warning – Brake fluid level Stop immediately in a suitable place.
Do not continue driving. Have the fault remedied
at an authorized Porsche dealer.
Warning – Brake circuit division Stop immediately in a suitable place.
Do not continue driving. Have the fault remedied
at an authorized Porsche dealer.
ABS failure Have the fault remedied at an authorized
Porsche dealer.
PSM off Porsche Stability Management has been swit-
ched off.
PSM on Porsche Stability Management has been swit-
ched on.
PSM failure Have the fault remedied at an authorized
Porsche dealer.
PASM Normal/Sport Indicator for selected PASM mode
PASM failure Have the fault remedied at an authorized
Porsche dealer.
PASM indicator faulty Have the fault remedied at an authorized
Porsche dealer.
Instrument
panelOn-board
computerText display on on-board
computerMeaning/measure

Maintenance, Car Care
181
Engine Oil Engine oil consumption
It is normal for your engine to consume oil.
The rate of oil consumption depends on the quality
and viscosity of oil, the speed at which the engine
is operated, the climate, road conditions as well
as the amount of dilution and oxidation of the
lubricant.
If the vehicle is used for repeated short trips, and
consumes a normal amount of oil, the engine oil
measurement may not show any drop in the oil
level at all, even after 600 miles (1,000 km) or
more. This is because the oil is gradually becom-
ing diluted with fuel or moisture, making it appear
that the oil level has not changed.
The diluting ingredients evaporate out when the
vehicle is driven at high speeds, as on an express-
way, making it then appear that oil is excessively
consumed after driving at high speeds.
If the conditions you drive your vehicle in are
dusty, humid, or hot, the frequency of the oil
change intervals should be greater. If the vehicle is driven at a high rate of speed,
climatic conditions are warm, and the load is high,
the oil should be checked more frequently, as
driving conditions will determine the rate of oil
consumption.
– The engine in your vehicle depends on oil to
lubricate and cool all of its moving parts.
Therefore, the engine oil should be checked
regularly and kept at the required level.
– Make it a habit to have the engine oil level
checked at every fuel filling.
– The oil pressure warning light is not an oil level
indicator.
The oil pressure warning light indicates serious
engine damage may be occuring when lit, if en-
gine rpm is above idle speed.
Engine Oil Level fPlease observe the chapter “EXERCISE EXTRE-
ME CAUTION WHEN WORKING ON YOUR VE-
HICLE” on Page 178.
fRegularly check the oil level using the on-board
computer after the vehicle is refuelled.
Please observe the chapter “OIL DISPLAY AND
MEASUREMENT OF THE ENGINE OIL LEVEL”
on Page 101.
The difference between the minimum and maxi-
mum marks on the segment display is approx.
1.2 liters.
Each segment of the display corresponds to ap-
prox. 0.4 liter.
f f f

184
Maintenance, Car Care
Oil change The engine oil has to be changed at the intervals
listed in your Maintenance Schedule.
fPlease observe the chapter “CAPACITIES” on
Page 268.
We recommend that you have the engine oil
changed at your Porsche dealer, who has the re-
quired oils and the necessary filling equipment.
If you suspect an oil leak in the engine have your
dealer check it out immediately.
All current engine oils are compatible with each
other, i. e. when making an oil change it is not nec-
essary to flush the engine if you wish to use a dif-
ferent brand or grade of oil.
Since, however, each brand of oil has a special
composition, you should, if possible, use the
same oil brand if it becomes necessary to top up
between oil changes.
Porsche engines have long intervals between oil
changes. You can make best use of these long oil
change intervals by using multigrade oils since
these are largely independent of seasonal fluctua-
tions in temperature. If your vehicle is used frequently in stop-and-go
traffic in cold weather, the engine will not always
be properly warmed up.
Condensation from products of combustion may
accumulate in the oil. In this case, it is advisable
to change the oil more frequently so that your en-
gine once again has 100% efficient engine oil.
Engine oil performance class Engine oil is not only a lubricant, but also serves
to keep the engine clean, to neutralize the dirt
which penetrates into the engine through combus-
tion and to protect the engine against corrosion.
To perform these functions, the oil is provided with
additives which have been specially developed for
these functions.
The efficiency of an oil is expressed, for example,
by the API, ILSAC or ACEA classifications.
Viscosity Like all liquids, engine oil is viscous when cold,
and thin-bodied when warm. The viscosity of an oil
is expressed by its SAE class. For cold viscosity
(measured at temperatures below 32°
F/0°
C) the
SAE class is given as a number and the letter “W”
(as in winter), for hot viscosity (measured at
212°
F/100°
C) the SAE class is given only as a
number.
The viscosity of an oil is, therefore, always the
same if it has the same number of an SAE class.
Oils with two viscosities are called multigrade oils;
oils with only one viscosity are termed single-
grade oils.
Single-grade oils can not be used in your engine.
The viscosity of the engine oil for your Porsche
has to be chosen according to the ambient tem-
perature given in the engine oil recommendation
table.

186
Maintenance, Car Care
Changing the brake fluid Brake fluid absorbs moisture from the air over
time. This accumulation of water lowers the boil-
ing point and, under certain operating conditions,
can affect the braking action.
Therefore have the brake fluid changed in accord-
ance with the change intervals stated in the
brochure “Maintenance”. – The warning lights on the instrument panel and
on the on-board computer indicate an insuffi-
cient brake fluid level.
– If the warning light lights up on the instrument
panel and the warning message appears on
the on-board computer in combination with a
larger pedal travel, a brake circuit may have
failed.
If the warning lights should light up whilst
driving:
fStop immediately in a suitable place.
fDo not continue driving.
Consult an authorized Porsche dealer.
Warning light USA
Warning light Canada

Maintenance, Car Care
195
Air Filter A dirty air filter not only reduces engine perform-
ance, but can lead to premature engine wear.
Regular filter replacement is part of the routine
maintenance service.
fIn dusty conditions, check the filter element
more frequently and replace if necessary.Combination Filter The fresh air passing through the combination fil-
ter into the passenger compartment is virtually
free of dust, pollen, and unpleasant odors.
fIf the outside air is polluted by exhaust fumes,
press the circulating-air button.
A dirty filter can be the cause of reduced air flow:
fHave filter replaced by your authorized
Porsche dealer.
Regular filter replacement is part of the routine
maintenance service.
Manual Transmission Oil The transmission oil has to be checked and
changed at the intervals listed in your Maintenance
Schedule.
fPlease observe the chapter “CAPACITIES” on
Page 268.
We recommend that you have the transmission oil
changed at your Porsche dealer, who has the re-
quired lubricants and the necessary filling equip-
ment.
If you suspect an oil leak in the transmission, have
your authorized Porsche dealer check it out imme-
diately.
Automatic Transmission Fluid The torque converter and the transmission are lu-
bricated with Automatic Transmission Fluid (ATF).
The final drive requires transmission oil. See “Ca-
pacities”.
Do not tow the car or run the engine without ATF
in the transmission. The automatic transmission
may be damaged by even a tiny speck of dirt, only
a clean funnel or spout must be used when adding
AT F.
The ATF and transmission oil has to be checked
and changed at the intervals listed in your Mainte-
nance Schedule.
We recommend that you have the ATF and trans-
mission oil changed at your Porsche dealer, who
has the required lubricants and the necessary fill-
ing equipment.
If you suspect an oil leak in the transmission, have
your authorized Porsche dealer check it out imme-
diately.

196
Maintenance, Car Care
Wiper Blades fWhen wiper performance deteriorates, replace
the wipers.
fPlease observe the chapter “CAR CARE IN-
STRUCTIONS” on Page 198.
Caution!
Risk of damage if the wiper arm accidentally
falls back on to the window.
fAlways hold the wiper arm securely when re-
placing the wiper blade.
Risk of damage if wiper blades that are fro-
zen in place are loosened improperly.
fThaw the wiper blades before loosening them.
Maintenance note
If the wiper blades rub or squeak, this can be as a
result of the following:
– If the vehicle is washed in an automatic car
wash, residues may adhere to the windshield.
These residues can only be removed using a
special cleaning solution.
Please contact your authorized Porsche dealer
for further information.
– The wiper blades may be damaged.
fReplace damaged wiper blades as soon as
possible.
Changing windshield wiper blades
Caution!
Risk of damage.
If a wiper blade is not changed properly, it
can come loose when the car is moving.
fCheck whether the wiper blade is seated
securely.
The wiper blade must engage the wiper arm properly.
A- Passenger’s side, curved wiper blade
B- Driver’s side, wiper blade with spoiler1. Apply the handbrake.
2. Switch the wipers off (position 0) and remove
the ignition key.
3. Fold windshield wiper arm away from the
windshield.
4. Press together the plastic spring of the wiper
blade (right arrow).
Pull wiper blade out of wiper arm.