Checking Brake Discs For Edge Damage
WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
Information
- Irrespective of wear, a brake disc change can be necessary on the brake disc friction surfaces due to edge damage.
- In such cases, only one brake disc may need to be replaced if the friction area surface of the other PCCB brake disc is still completely OK.
The following criteria apply to edge damage assessment:
- Max. permissible width/depth = 2 mm (0.08 inches)
- Max. permitted length = 10 mm (0.39 inches)
- Max. 3 damaged edge areas permissible