Porsche 911 Carrera Manual page 176

Door lock
f To prevent the door lock from freezing during
the cold season, the lock cylinder should be
covered during a wash.
f Should the lock freeze, use an ordinary de-icer.
In many cases, a well warmed key can help.
Never use excessive force.
Paint
f 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, particular-
ly climatic ones such as bright sunlight, rain, frost
and snow. Ultraviolet light, rapid changes in tem-
perature, 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.
f Do not apply silicone polishes to the windshield
or windows.
f Do not treat matt-painted components with
preservatives or polishes as this will spoil the
matte effect.
176
Maintenance, Car Care
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 pre-
vented from adhering to the paint surface and in-
dustrial dust is prevented from penetrating the
paint.
Provided it is washed and treated with preserva-
tive regularly, the brand new finish of your car will
be retained for years to come.
f Apply the Porsche paint preservative after the
car wash and polish it dry to obtain a bright fin-
ish or simply add a liquid preservative regularly
to the final rinse water.
Polishing
Do not resort to using Porsche polish until it be-
comes evident that the normal preservatives no
longer produce the desired finish.
Spots and stains
f Remove tar stains, grease, oil spots and dead
insects as soon as possible with Insect Remov-
er. They can cause discoloration if allowed to
remain on the paintwork.
f Wash the affected area immediately after treat-
ing it.
Minor paint damage
f Have minor paint damage, such as scratches,
scores or chips caused by flying stones, re-
paired 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 vehicle's paint data plate.