Porsche Cayman Owner's Manual page 232

Paint
Never rub a dusty car with a dry cloth since
dust particles are abrasive and could dull and
damage the surface finish.
The paintwork of your car is exposed to all types of
mechanical and chemical conditions, particularly
climatic ones such as bright sunlight, rain, frost
and snow. Ultraviolet light, rapid changes in
temperature, rain, snow, industrial dust and
chemical deposits constantly attack the paint
which is only able to withstand such exposure in the
long term if it is given regular care and attention.
Do not apply silicone polishes to the windows.
Do not treat matt-painted components with
preservatives or polishes as this will spoil the
matte effect.
Preservation
The paint surface becomes dull over time due to
weathering. It is therefore necessary to preserve
the paint regularly.
This keeps the paint shiny and elastic. Dirt is
prevented from adhering to the paint surface and
industrial dust is prevented from penetrating the
paint.
Provided it is washed and treated with preservative
regularly, the brand new finish of your vehicle will
be retained for years to come.
230
Maintenance, Car Care
Simply apply paint preservative after washing
the vehicle and polish it smooth.
Polishing
Do not resort to using Porsche polish until it
becomes evident that the normal preservatives
no longer produce the desired finish.
Spots and stains
Remove tar stains, grease, oil spots and
dead insects as soon as possible with Insect
Remover. They can cause discoloration if
allowed to remain on the paintwork.
Wash the affected area immediately after
treating it.
Minor paint damage
Have minor paint damage, such as scratches,
scores or chips caused by flying stones,
repaired immediately by your authorized
Porsche dealer before corrosion sets in.
However, if there are already traces of corrosion,
they must first be removed carefully and thorough-
ly. Coat the area with a rust-proofing primer and
finish off with a top coat. The paint code and color
number are found on the data bank in the Mainte-
nance booklet and on the filler flap.
Cleaning and preserving engine
compartment
The engine compartment and the surface of the
engine are treated with a corrosion-inhibitor at the
factory.
If degreasing solvents are used to clean the
engine compartment or the engine is washed
down, the process almost invariably removes the
corrosion-inhibiting coating. It is then absolutely
necessary to have a durable preservative applied
to all surfaces, body seams, joints and assemblies
in the engine compartment. This also applies when
corrosion-inhibitor parts are replaced.
Caution!
Risk of damage to the alternator.
Do not point the cleaning jet directly at the
alternator, or cover the alternator.
Effective corrosion-proofing is particularly impor-
tant during the cold weather season. If your car
is driven frequently in areas where salt has been
spread on the roads, the whole engine compart-
ment should be cleaned thoroughly after the winter
to prevent salt from causing any lasting damage. A
full under-body wash should also be performed at
the same time.