Pccb Brake Disc Wear Appearance

WARNING: This page is about a different car, the 2014 Porsche Cayenne, 2013 Porsche Cayenne, 2012 Porsche Cayenne, and 2011 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Friction surfaces after normal brake load while driving on roads. No surface fractures present -

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Bores (perforations) in the brake disc friction surface

Brake discs do not need to be replaced!
Friction surfaces after a long journey and occasional high load. Isolated cases of connected surface fractures less than 1 cm²-arrow-

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PCCB surface fractures

No replacement necessary as the connected surface fractures are < 1 cm² !
End of service life of friction surface or after highest load on a racing circuit.
Replace brake discs if the connected friction surface damage is > 1 cm²-arrow- . To do this, follow the instructions provided under

> 465102 Checking front PCCB brake disc (wear assessment) - section on "INFORMATION "

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PCCB friction surface damage

The best way to detect a surface fracture is by checking the wear indicators. Based on the wear indicators, this means that at least one wear indicator -arrow- must have a surface fracture of > 50% (damage > 1 cm² /entire surface of a wear indicator with a surface area of approx. 2 cm² ).

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PCCB surface burnout on wear indicator