Porsche CARRERA GT-2004 Manual page 139

Door, roof, lid and window seals
f Wash dirt (e.g. abrasion, dust, road salts) from
all seals regularly using warm soapy water. Do
not use any chemical cleaning agents or sol-
vents.
In order to prevent damage to the anti-fric-
tion coating, all seals around the doors, side
windows, and roof panels must not be treated
with car care products.
Headlights, lights, plastic rear windows,
interior and exterior plastic parts
f Only use clean water and a little dishwasher de-
tergent to clean plastic parts and surfaces.
Do not clean when dry.
Use a soft sponge or a soft, lint-free cloth. Gen-
tly wipe the surface without applying too much
pressure.
The Porsche inside window cleaner is also suit-
able for cleaning plastic surfaces. Follow the
cleaning instructions on the container.
Never use other chemical cleaners or
solvents.
f Rinse cleaned surfaces with clear water.
Light alloy wheels
Pitting may occur if metallic particles which cause
contact corrosion (e.g. brass or copper in brake
dust) are allowed to remain on the light alloy
wheels for too long.
f If possible, wash the wheels with a sponge or
wash brush about every two weeks. In areas
where salt is spread on winter roads or there is
a lot of airborne industrial dust, it is best to
clean the wheels weekly.
The Porsche Light Alloy Wheel Cleaner
(ph-value 9.5) can be used for this pur-
pose.
If the ph-value of the detergent is incor-
rect, the protective coating on the wheels
will be destroyed.
Polishes which dissolve oxides, such as those
frequently used for other metals, or abrasive
tools or agents are unsuitable because they
break down the oxide film of the protective
coating and will cause discoloration of the
wheel.
f Every three months, after cleaning, coat the
wheels with a car wax or non-corrosive grease
(petroleum jelly).
Using a clean cloth thoroughly rub the grease
into the surface.
f
Maintenance, Car Care
f f
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