Coating On The PCCB Brake Discs (Potential Causes)

The coating on the PCCB brake discs arises as a result of a high load and high temperatures, for example on a racing circuit. Check the following in such cases:

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

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

• Ventilation (brake cooling): all components are present, secured correctly and undamaged.
• Brake pad quality: use the appropriate brake pads if the vehicle is being used on a racing circuit.
• Perforated bores -see Fig 1- in the brake discs must be free. Expose them if necessary → Notes on bores (perforations) in the brake disc friction surface  .
• The brake discs can still be used even if there is a coating on them provided that they are OK with respect to all wear criteria → General information on replacing worn PCCB brake discs  . The perforated bores -see Fig 1- must be free.

The coating on the PCCB brake discs arises as a result of a high load and high temperatures, for example on a racing circuit. Check the following in such cases:

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

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

• Ventilation (brake cooling): all components are present, secured correctly and undamaged.
• Brake pad quality: use the appropriate brake pads if the vehicle is being used on a racing circuit.
• Perforated bores -see Fig 1- in the brake discs must be free. Expose them if necessary → Notes on bores (perforations) in the brake disc friction surface  .
• The brake discs can still be used even if there is a coating on them provided that they are OK with respect to all wear criteria → General information on replacing worn PCCB brake discs  . The perforated bores -see Fig 1- must be free.