PCCB Brake Disc Wear Appearance

Friction area surface after normal brake load in road use. No surface fractures.
No replacement necessary!

Fig 1: Identifying PCCB Brake Discs Without Surface Fractures
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Friction area surfaces after a long run and occasional higher load. Isolated surface fractures smaller than 1 cm²-arrow- .
No replacement necessary as the associated surface fractures are < 1 cm² !

Fig 2: Locating PCCB Surface Fractures
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
End of service life of friction area surface or after highest load on a racing circuit.
Replace brake discs if there is associated friction surface damage > 1 cm²-arrow- . To do this, please observe the relevant information → Replacing brake discs (notes/decision-making aid) .

Fig 3: Locating PCCB Friction Surface Damage
Courtesy of PORSCHE CARS NORTH AMERICA, INC.