Information Concerning Bores (Perforations) In The Brake Disc Friction Surface

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2018 Porsche Cayenne, 2017 Porsche Cayenne, 2016 Porsche Cayenne, 2015 Porsche Cayenne, and 2014 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Observe the following warning when cleaning or exposing the bores in the brake disc friction surface!

Fig 1: Identifying Bores (Perforations) In Brake Disc Friction Surface

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

NOTE: Work cannot be carried out on the bores in the brake disc friction surface

Damage to brake discs

→ Clean the bores on PCCB brake discs with high-pressure cleaning equipment if necessary. Observe the relevant environmental and safety regulations.

→ Do not machine the bores. Drilling or counter-sinking is not permitted.