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Maintenance, Car Care
Emission Control SystemIn the interest of clean air Pollution of our environment has become a
problem that is of increasing concern to all of us.
We urge you to join us in our efforts for cleaner air
in controlling the pollutants emitted from the
automobile.
Porsche has developed an emission control
system that controls or reduces those parts of the
emission that can be harmful to our environment.
Your Porsche is equipped with such a system.
Porsche warrants the Emission Control System in
your new car under the terms and conditions set
forth in the Warranty Booklet.
You, as the owner of the vehicle, have the
responsibility to provide regular maintenance
service for the vehicle and to keep a record of all
maintenance work performed. To facilitate record
keeping, have the service performed by autho-
rized Porsche dealers. They have Porsche trained
technicians and special tools to provide fast and
efficient service. To assure efficient operation of the Emission
Control System:
fHave your vehicle maintained properly and in
accordance with the recommendations
described in your Maintenance Booklet.
Lack of proper maintenance, as well as
improper use of the vehicle, will impair the
function of the emission control system and
could lead to damage.
fDo not alter or remove any component of the
emission control system.
fDo not alter or remove any device, such as
heat shields, switches, ignition wires, valves,
etc., which are designed to protect your
vehicle’s emission control system.
In addition to serious engine damage, this can
result in a fire if excess raw fuel reaches the
exhaust system.
fDo not continue to operate your vehicle if you
detect engine misfire or other unusual opera-
ting conditions.
Parking
Warning!
Danger of fire resulting in serious personal
injury or death.
fDo not park or operate the vehicle in areas
where the hot exhaust system may come in
contact with dry grass, brush, fuel spill or
other flammable material.
fIf your car catches on fire for any reason, call
the fire department.
Do not endanger your life by attempting to put out the fire.
Undercoating
Danger!
Danger of fire resulting in serious personal
injury or death.
fDo not apply additional undercoating or rust-
proofing on or near the exhaust manifold,
exhaust pipes, catalytic converters or heat
shields. During driving the substance used for undercoating could overheat and ignite.
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How Emission Control Works When an automobile engine is running, it uses
energy generated through the combustion of a
mixture of air and fuel. Depending on whether a
car is driven fast or slowly or whether the engine
is cold or hot, some of the fuel (hydrocarbons)
may not be burned completely, but may be
discharged into the engine crankcase or exhaust
system. Additonal hydrocarbons may enter the
atmosphere through evaporation of fuel from the
fuel tank. These hydrocarbons (HC), when
released into the air, contribute to undesirable
pollution.
In addition, carbon monoxide (CO) and oxides of
nitrogen (NOx) contribute to engine emissions.
They, too, are formed during the combustion
process and discharged into the exhaust system.
To reduce these pollutants, your Porsche is
equipped with a precisely calibrated fuel injection
system to assure a finely balanced air/fuel mixture
under all operating conditions.
Oxygen sensor The oxygen sensor, installed in the exhaust pipe
continuously senses the oxygen content of the
exhaust and signals the information to an
electronic control unit. The control unit corrects
the air/fuel ratio, so the engine always receives an
accurately metered air/fuel mixture. Crankcase ventilation Through crankcase ventilation, undesirable
emissions from the engine crankcase are not
permitted to reach the outside atmosphere. These
emissions are recirculated from the crankcase to
the air intake system. From here the emissions
mix with the intake air and are later burned in the
engine. Catalytic converters The catalytic converters are efficient “clean-up”
devices built into the exhaust system of the
vehicle. The catalytic converters burn the undesi-
rable pollutants in the exhaust gas before it is
released into the atmosphere.
The exclusive use of unleaded fuel is criti-
cally important for the life of the catalytic
converters. Therefore, only unleaded fuel
must be used.The catalytic converters will be damaged by:
– push or tow starting the vehicle
– misfiring of the engine
– turning off the ignition while the vehicle is
moving or
– driving until the fuel tank is completely empty
– by other unusual operating conditions.
fDo not continue to operate your vehicle under
these conditions, since raw fuel might reach
the catalytic converters. This could result in
overheating of the converters. Federal law
prohibits use of leaded fuel in this car.
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170
Maintenance, Car Care
Washer FluidCapacityfPlease see the chapter “CAPACITIES” on
Page 239.Washer fluidThe reservoir is denoted by the blue screw cap
and is located in the luggage compartment in the
rear left.Clean water is generally not enough to clean the
windshield and headlights. Depending on the
season, mix the water with the appropriate
additives. Follow the instructions for the mixture
ratio.
Only use window cleaner concentrate which meets
the following requirements.
– Dilutability 1:100
– Phosphate-free
– Suitable for plastic headlight lenses.
We recommend window cleaner concentrates
approved by Porsche. Your authorized Porsche
dealer will be pleased to advise you.
Summer filling
Water + window cleaner concentrate at the mixing
ratio indicated on the container.
Winter filling
Water + antifreeze protection + window cleaner
concentrate at the mixing ratio indicated on the
container.
fPlease note all the information on the contai-
ners of the window cleaner concentrate or the
antifreeze protection.Topping off washer fluid
1. Please note all the information on the refill
container of the cleaning agent.
2. Open cap of the washer-fluid reservoir (arrow).
3. Top off washer fluid and close cap properly.
fDo not use engine coolant anti-freeze or any
other solution that can damage the car’s paint,
in the washer reservoir.
If less than 0.53 quarts (0.5 liter) remains, a
warning message appears on the on-board
computer.
fAdd washer fluid.
Warning light
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Maintenance, Car Care
171
Power Steering Power steering is assisted by hydraulic auxiliary
forces.
The hydraulic fluid reservoir is located in the
engine compartment.
Note
The flow noise heard at full steering lock is design-
related and does not indicate a defect in the
steering system.
Warning!
Risk of accident resulting in serious personal
injury or death.
When the engine is stopped (e.g. when being
towed) or the hydraulic system fails, there is
no assistance for steering.
Therefore, substantially more force will have
to be exerted in order to steer.
fExercise great care when being towed.
fHave the fault remedied at your nearest autho-rized Porsche dealer.
Checking hydraulic fluid fPlease see the chapter “EXERCISE EXTREME
CAUTION WHEN WORKING ON YOUR VEHICLE”
on Page 157.
fOnly use hydraulic fluid authorized by Porsche.
Specification:
Please see the chapter “CAPACITIES” on
Page 239.
Check the fluid level with the engine stopped and
cold (approximately 68 °F/20 °C).
1. Start the engine and let it idle for approx.
20 seconds.
Switch off the engine.
2. Open the engine compartment lid.
3. Open the reservoir cap.
4. Wipe measuring rod.
Close cap and reopen. The fluid level should lie
in the area of the “COLD” marking.
Add hydraulic fluid if necessary.
5. Close cap carefully.
Close engine compartment lid.
Noticeable loss of fluid indicates leakage in the
system.
The cause should be remedied immediately at an
authorized Porsche dealer.
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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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173
Wiper Blades Wiper blades that are in perfect condition are vital
for a clear view.
fReplace the wiper blades twice per year
(before and after the cold season) or whenever
wiper performance deteriorates.
Caution!
Risk of damage if the wiper arm accidentally
falls back on to the window.
fAlways hold the wiper arm securely when repla-
cing the wiper blade.
Risk of damage if wiper blades that are
frozen in place are loosened improperly.
fThaw the wiper blades before loosening them.
Maintenance note
fPeriodically clean the wiper blades with
window cleaner, especially after the vehicle
has been washed in a car wash.
We recommend the Porsche window cleaner. If
they are very dirty (e.g. with insect remains),
the windows can be cleaned with a sponge or
cloth.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, wax residues may adhere to the winds-
hield. These wax residues can be removed
only by using window cleaner concentrate.
– The wiper blades may be damaged or worn.
fReplace damaged or worn wiper blades as
soon as possible.
fPlease see the chapter “WASHER FLUID” on
Page 170.
fPlease contact your authorized Porsche dealer
for further information.
Changing windshield wiper bladesfPlease follow the separate instructions for
fitting wiper blades as supplied by the
manufacturer.
fWe recommend that you get your authorized
Porsche dealer to replace the 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.
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174
Maintenance, Car Care
Car Care Instructions fPlease see the chapter “EXERCISE EXTREME
CAUTION WHEN WORKING ON YOUR VEHICLE”
on Page 157.
Regular and correct care helps to maintain
the value of your car and is also a precondi-
tion for the New Vehicle Warranty and the
Anti Corrosion Warranty.
Your authorized Porsche dealer has specially
developed car-care products from the
Porsche program available either singly or
as complete car-care sets. They will be
pleased to help you select suitable products.
Whether you use Porsche products or other
commercially available cleaning agents first
make sure of their correct application.
A Porsche that is well-cared for can look like new
for years. It all depends on the amount of care the
owner is willing to give the car.
Warning!
Risk of serious personal injury or damage to
the vehicle or property.
Cleaning agents may be hazardous to your
health.
Most chemical cleaners are concentrates
which require dilution. High concentrations
might cause problems ranging from irritation
to serious injury as well as damage to your
vehicle.
fKeep cleaning agents out of reach from
children.
fObserve all caution labels.
fAlways read directions on the container before
using any product. These directions may
contain information necessary to avoid
personal injury.
fDo not use fuel, kerosene, naphtha, nail polish
remover or other volatile cleaning fluids. They
may be toxic, flammable or hazardous in other
ways. Only use spot removing fluids in a well
vented area.
fDo not clean the underside of chassis,
fenders, wheel covers, etc., without protecting
your hands and arms as you may cut yourself on sharp-edged metal parts.
Moisture and road salt on brakes may affect
braking efficiency.
fTest the brakes after each vehicle washing.
High-pressure cleaning equipment, steam
cleaners
Warning!
High-pressure cleaning equipment or steam
cleaners can damage the following compon-
ents:
–tires,
– logos, emblems,
– painted surfaces,
– alternator.
fPlease observe the operating instructions from
the unit manufacturer.
fWhen cleaning with a flat-jet nozzle or the like,
maintain a minimum distance of 20 inches
(50 cm).
fNever use high-pressure cleaning equipment
or steam cleaners with a round-jet nozzle. A
high-pressure cleaning equipment or steam
cleaners with round nozzle will damage your
vehicle.
fThe tires are particularly susceptible to
damage.
fDo not point the cleaning jet directly at any of the aforementioned components.
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Maintenance, Car Care
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Decals
Caution!
Risk of damage due to separation of the
decal films when using high-pressure
cleaning equipment or steam cleaners.
fDo not use high-pressure cleaning equipment or steam cleaners to clean decal films.
Washing The best method of protecting your car from the
damaging effects of the environment is frequent
washing and the application of a preservative. The
underside of your vehicle should also be
thoroughly washed for cinders, salt or sanding at
winter’s end.
The longer salt, road dust and industrial dust,
dead insects, bird droppings or substances from
trees (resin, pollen) are allowed to remain on the
bodywork, the more serious is their harmful
effect.
New cars should be washed carefully with plenty
of clear water to protect the new paint work. Dark
paint finishes show up the smallest of surface
damage (e.g., scratches) more readily than lighter
colors. Dark colors are also more susceptible to
scratching because of the composition of their
pigments and require particularly careful paint
care.
fDo not wash your car in bright sunlight or while
the bodywork is still hot.
fWhen washing by hand, use abundant water, a
soft sponge or wash brush, and Porsche car
shampoo.
fBegin by spraying the body thoroughly with
water to rinse away loose dirt.
fAfter washing, rinse the car with plenty of
water and then dry with a chamois leather.
Do not use the same chamois leather for
drying as you use for cleaning the windshield
and windows.
Warning!
Moisture which gets on to the brakes during
a car wash can reduce braking efficiency or
make the brakes pull unevenly which could
increase the danger of an accident, causing
serious personal injuries or death.
fAfter washing the car, test the brakes and
steering and briefly brake the discs dry.
When doing this, take care not to hamper other
road users behind you (traffic conditions permitting). Automatic car washes
fPlease see the chapter “WIPER BLADES” on
Page 173.
Optional add-on parts or parts which project
beyond the contours of the vehicle may be
damaged by design features (e.g. brushes) of
automatic car washes.
The following parts are particularly
susceptible to damage:
– Windshield wipers (always switch them off to
prevent them wiping unintentionally in intermit-
tent or sensor operation)
– External antennas (always unscrew)
– Rear spoiler
– Wheels (the wider the rim and the lower the tire
height, the greater the risk of damage)
– High-gloss wheels (to prevent these from
getting scratched, do not clean with the wheel-
cleaning brushes of the car wash).
fPlease consult the operator before using
automatic car washes.
fWash and dry by hand all points not reached by
a car wash, such as door and lid seams or
door sills.
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