
150
Warnings
Fuel gauge warning
lightConsider remaining range Refuel at next opportunity.
Check engine oil level Start engine oil level measurement in the on-board computer.
Engine oil pressure too low Stop immediately at a suitable place, measure oil level with the on-board computer and, if necessary,
add engine oil.
Warning light
Temperature gaugeEngine temperature too high Switch engine off and let it cool.
Check coolant level and, if necessary, add coolant.
Temperature gauge
warning light flashesCheck coolant level Switch engine off and let it cool.
Check coolant level and, if necessary, add coolant.
Check engine
visit workshopStop immediately at a suitable place and check tank cap for proper fastening. If the tank cap was
fastened correctly, consult your authorized Porsche dealer.
Reduced engine power Consult your authorized Porsche dealer.
Temperature gauge
warning light flashesFailure of
engine compartment blowerConsult your authorized Porsche dealer.
Warning Battery/generator Stop at a safe place and switch the engine off. Do not continue driving.
Have the fault remedied at an authorized Porsche dealer.
Failure
oil pressure
indicatorHave the fault remedied at an authorized Porsche dealer.
Failure
oil level
indicatorHave the fault remedied at an authorized Porsche dealer.
Oil temperature
indicator faultyHave the fault remedied at an authorized Porsche dealer.Instrument
panelOn-board
computerText display on on-board
computerMeaning/measure
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156
Maintenance, Car Care
Maintenance, Car CareExercise Extreme Caution when Working
on your Vehicle ........................................... 157
Coolant Level ............................................. 158
Engine Oil................................................... 159
Engine Oil Level .......................................... 160
Brake Fluid Level ........................................ 162
Fuel Economy ............................................. 164
Operating your Porsche in other Countries .... 164
Fuel ........................................................... 165
Fuel Recommendations............................... 166
Portable Fuel Containers ............................. 167
Fuel Evaporation Control ............................. 167
Emission Control System............................. 168
How Emission Control Works ....................... 169
Washer Fluid............................................... 170
Power Steering ........................................... 171
Air Filter ..................................................... 172
Combination Filter ....................................... 172
Manual Transmission Oil .............................. 172
Wiper Blades .............................................. 173
Car Care Instructions.................................. 174
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Maintenance, Car Care
157
Exercise Extreme Caution when
Working on your Vehicle
Danger!
Ignoring the following instructions may
cause serious personal injury or death.
fThe engine compartment of any motor vehicle
is a potentially hazardous area. If you are not
fully familiar with proper repair procedures, do
not attempt the adjustments described on the
following pages.
This caution also applies to the entire vehicle.
fO n l y w o r k o n y o u r v e h i c l e o u t d o o r s o r i n a w e l l
ventilated area.
fEnsure that there are no open flames in the
area of your vehicle at any time when fuel
fumes might be present. Be especially
cautious of such devices such as hot water
heaters which ignite a flame intermittently.
fBefore working on any part in the engine
compartment, turn the engine off and let it cool
down sufficiently. Hot engine compartment
components can burn skin on contact.
fBe alert and cautious around engine at all
times while the engine is running.
If work has to be performed with the engine
running, always set the parking brake, and
make sure the shift lever is in neutral position.fIn particular, be very careful to ensure that
items of clothing (ties, shirt, sleeves etc.),
jewelry, long hair, hand or fingers cannot get
caught in the engine-compartment blower, fan,
belts or other moving parts.
The radiator and radiator fans are in the front
of the car.
The engine-compartment blower is mounted
on the engine-compartment lid.
The engine-compartment blower can start or
continue running as a function of temperature,
even with the engine switched off.
Carry out work in these areas only with the
engine off, the ignition switched off, and
exercise extreme caution.
fYour Porsche is equipped with an electronic
ignition system. When the ignition is on, high
voltage is present in all wires connected with
the ignition system; therefore, exercise
extreme caution when working on any part of
the engine while the ignition is on or the engine
is running.
fAlways support your car with safety stands if it
is necessary to work under the car.
fWhen working under the car without safety
stands but with the wheels on the ground,
make sure the car is on level ground, the
wheels are blocked, and that the engine
cannot be started.
Remove the ignition key. fDo not smoke or allow an open flame around
the battery or fuel.
Keep a fire extinguisher close at hand.
fIncomplete or improper servicing may cause
problems in the operation o f t h e c a r. I f i n d o u b t
about any servicing, have it done by your
authorized Porsche dealer.
Improper maintenance during the warranty
period may affect your Porsche warranty
coverage.
fSupplies of fluids, e.g. engine oil, brake fluid or
coolant, are hazardous to your health.
Keep these fluids out of children’s reach and
dispose of them in accordance with the appro-
priate regulations.
fSome countries require additional tools and
special spare parts to be carried in your
vehicle.
Please make enquiries before driving abroad.
Power measurementsPower measurements on dynamometers are not
approved by Porsche.
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Maintenance, Car Care
159
Engine-compartment blower, radiator fan The radiator and radiator fan are in the front of the
car.
The engine-compartment blower is mounted on
the engine compartment lid.
Warning!
Risk of injury.
After the engine is switched off, the engine-
compartment temperature is monitored for
approx. 30 minutes.
During this period, and depending on tempe-
rature, the engine-compartment blower may
continue to run or start to run.
fCarry out work in these areas only with the
engine off, the ignition off, and exercise
extreme caution.
Risk of injury. The radiator fan in the front
end of the car may be operating or unexpec-
tedly start operating when the engine is
switched on.
fCarry out work in these areas only with the engine switched off.
Engine Oil It is important to perform oil changes regularly in
accordance with the intervals specified in the
“Maintenance” booklet.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
becoming 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
expressway, 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 refueling.
– 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
engine rpm is above idle speed.
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160
Maintenance, Car Care
Engine Oil Level fPlease see the chapter “EXERCISE EXTREME
CAUTION WHEN WORKING ON YOUR VEHICLE”
on Page 157.
fRegularly check the oil level using the on-board
computer after the vehicle is refueled.
Please see the chapter “OIL DISPLAY AND
MEASUREMENT OF THE ENGINE OIL LEVEL”
on Page 143.
The difference between the minimum and
maximum marks on the segment display is
approx. 1.1 quarts (1.0 liters).
Each segment of the display corresponds to
approx. 0.32 quart (0.3 liter).
Topping off engine oilPorsche recommends .1) Generally, you can find details on the
manufacturer approvals on the oil containers or as
a notice displayed by the retailer.
The current approval status is also available from
your authorized Porsche dealer.2) SAE viscosity class – Example: SAE 0W - 40
Specification 0W = Viscosity specification for low
temperatures (winter).
Specification 40 = Viscosity specification for high
temperatures.3) For all temperature ranges.4) For the temperature range above –25 °C.Always observe the following points:
– Use engine oils approved by Porsche only.
This is a precondition for optimum and
problem-free operation of your vehicle.
– Regular oil changes are part of servicing.
It is important that the service intervals,
particularly the oil change intervals, are
observed in accordance with the specifications
in the “Maintenance” booklet.
– Oils approved by Porsche can be mixed with
each other.
– Porsche engines are designed so that no oil
additives may be used.
– A label is located in the engine compartment,
which provides you with information on suitable
oil for your engine.
Your authorized Porsche dealer will be pleased to
advise you. The right oil for your vehicle
Vehicle Complies
with
approval
1)
Viscosity
class
2)
911 GT3: Porsche A40 SAE 0W - 40
3)
SAE 5W - 40
4)
SAE 5W - 50
4)
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Maintenance, Car Care
161
Warning!
Risk of burning from hot parts in engine
compartment. Risk of injury by rotating
parts. The engine compartment blower on
the engine compartment lid can start up
even with engine off.
fExercise extrem caution when working in the
engine compartment.
fTop off engine oil only with the engine off.
Engine oil is hazardous to your health and
may be fatal if swallowed.
fKeep engine oil out of children’s reach.
Used engine oil contains chemicals that have
caused cancer in laboratory animals.
fAlways protect your skin by washing thoroughly with soap and water.
Note
The Check Engine warning light may light up if the
cap of the oil filler opening is opened while the
engine is running.1. Measure the oil level and read off the required
top-up quantity on the on-board computer.
2. Switch off the engine.
3. Unscrew cap of the oil filler opening.4. Add at most 0.5 quarts (0.5 liter) of engine oil
at a time.
Never add more engine oil than required
to reach the max. mark.
5. Carefully close cap of the oil filler opening.
6. Measure oil level again with the on-board
computer. Switch off the engine.
7. If necessary, repeat the process and add more
engine oil as required.
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166
Maintenance, Car Care
Refueling Fuel tank capacity is listed under “Capacities”.
fPlease see the chapter “CAPACITIES” on
Page 239.
Porsche does not recommend the use of fuel
additives.
Fuel is highly flammable and harmful to
health.1.Important: Stop the engine and switch off the
ignition.
2. Slowly unscrew the tank cap.
Hang the tank cap's plastic strap on the hook
on the inside wall of the filler flap.
3. Insert fuel-hose nozzle fully into the filler neck
with the handle of the fuel-hose nozzle facing
down.
4. Do not add further fuel once the correctly
operated automatic fuel-hose nozzle has
switched off.
Fuel could spray or could run over in warm
temperatures.
5. Replace the tank cap immediately after
refueling and turn it until you hear it and feel it
engage.
If you lose the tank cap, you must replace it
only with an original part to reduce the possi-
bility of a fire in the event of a collision.
Caution!
Risk of damage. Body decals may bleach if
they come into contact with fuel.
fClean up any spilt fuel immediately.
Fuel Recommendations Your Porsche is equipped with catalytic conver-
ters and must use UNLEADED FUEL ONLY.
Your engine is designed to provide optimum
performance and fuel economy using unleaded
premium fuel with an octane rating of 98 RON
(93
CLC or AKI). Porsche therefore recom-
mends the use of these fuels in your vehicle.
Porsche also recognizes that these fuels may not
always be available. Be assured that your vehicle
will operate properly on unleaded premium fuels
with octane numbers of at least
95 RON
(90 CLC or AKI), since the engine’s “Electronic
Octane™ knock control” will adapt the ignition
timing, if necessary.
It is important to observe the regular service inter-
vals, and particularly the oil change intervals,
specified in the “Maintenance” booklet.
The use of UNLEADED FUEL ONLY is critically
important to the life of the catalytic conver-
ters. Deposits from leaded fuels will ruin the
converters and make it ineffective as an
emission control device.
Cars with catalytic converters have a smaller fuel
tank opening, and gas station pumps have smaller
nozzles. This will prevent accidental pumping of
leaded fuel into cars with catalytic converters.
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172
Maintenance, Car Care
Air Filter A dirty air filter not only reduces engine perfor-
mance, 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
filter into the passenger compartment is virtually
free of dust, pollen, and unpleasant odors.
fIf the outside air is polluted by exhaust fumes,
press the recirculating-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 OilThe transmission oil has to be checked and
changed at the intervals listed in your Maintenance
Schedule.
fPlease see the chapter “CAPACITIES” on
Page 239.
We recommend that you have the transmission oil
changed at your authorized Porsche dealer, who
has the required lubricants and the necessary
filling equipment.
fIf you suspect an oil leak in the transmission,
have your authorized Porsche dealer check it
out immediately.
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