Porsche Cayenne Turbo Driver Manual page 278

Cleaning windows
f Clean all windows regularly, inside and out,
with window cleaner.
We recommend the Porsche window cleaner.
f Make sure not to damage the TV antennas in
the side windows when cleaning.
f Do not use the same leather for painted
surfaces and for drying the windows.
Preservative residues could reduce transpar-
ency.
f Remove insect residues with insect remover.
Note
The front side windows feature a water-repellent
(hydrophobic) coating which prevents soiling of
the windows.
This coating is subject to natural wear and can be
renewed.
f Consult a qualified specialist workshop. We
recommend that you use a Porsche partner for
this work since these are staffed with trained
personnel and have the necessary parts and
tools.
278
Maintenance and Car Care
Care of windscreen wiper blades
Wiper blades that are in perfect condition are vital
for a clear view.
f Replace the wiper blades twice per year
(before and after the cold season) or if wiper
performance deteriorates or the blades are
damaged.
f For information on changing wiper blades:
Please observe the chapter "WIPER BLADES"
on Page 269.
f Periodically 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),
they can be cleaned with a sponge or cloth.
If the wiper blades rub or squeak, this may be as
a result of the following:
– If the vehicle is washed in an automatic car
wash, wax residues may adhere to the
windscreen. These wax residues can be
removed only by using window cleaner
concentrate.
f Please observe the chapter "ADDING WASHER
FLUID" on Page 267.
Please contact your Porsche partner for further
information.
– The wiper blades may be damaged or worn.
f Replace damaged wiper blades as soon as
possible.
Repairing the underbody protection
The underside of the vehicle is lastingly protected
against chemical and mechanical effects.
Damage to the protective coating while driving
cannot be ruled out.
f For this reason, have the vehicle underside
checked and repaired at regular intervals by a
qualified specialist workshop.
Warning!
Risk of fire in the area of the exhaust system.
f Do not apply additional undersealing or rust
protection agent on or near the exhaust
manifolds, exhaust pipes, catalytic converters
or heat shields.
The protective material could overheat and
ignite while you are driving.