Porsche Cayenne Owner's Manual page 79

Brake wear
Your car has excellent brakes, but they are still
subject to wear. The rate at which they wear de-
pends on how the brakes are used.
f Have the brake system inspected at the inter-
vals recommended in your Maintenance Book-
let.
Brake wear warning message
A warning message will be displayed on the multi-
purpose display of the instrument panel if the
brake pads are worn, excessively.
f Do not continue to operate the vehicle.
Have your authorized Porsche dealer inspect
or replace the brake pads.
f Please observe the chapter "WARNING LIGHTS
AND WARNING MESSAGES" on Page 124.
Brake pads and brake discs
Wear on the brake pads and brake discs depends
to a great extent on the driving style and the con-
ditions of use and therefore cannot be expressed
in actual miles on the road.
The high-performance brake system is designed
for optimal braking effect at all speeds and tem-
peratures.
Certain speeds, braking forces and ambient con-
ditions (such as temperature and humidity) there-
fore might cause the brakes to squeal.
New brake pads or linings
New brake pads have to be "broken in", and there-
fore only attain optimal friction when the car has
covered several hundred miles or km.
The slightly reduced braking ability must be com-
pensated for by pressing the brake pedal harder.
This also applies whenever the brake pads and
brake discs are replaced.
Controls, Safety, Instruments
79