911 Targa (996) F6-3.6L (2004)
Depending on the wear of cast iron brake discs, two condition criteria can make replacement necessary:
1. Cracking in the holed (perforated) brake disc friction plates is in an advanced state.
2. Brake disc minimum thickness is not attained due to wear (material erosion due to friction).
Technical Data/Brake Wear Limit - 911 Carrera 4S With PCCB
Technical data/Brake wear limit - 911 Carrera 4S with PCCB