Basic Information

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Checking involves the following: Information

Visual inspection for surface changes in the brake disc friction surfaces and wear indicators. Indication of wear: Connected surface fracture > 1 cm²-arrow- , without adding up smaller fractures → 465102 CHECKING FRONT PCCB BRAKE DISCS (WEAR ASSESSMENT) - section on "Checking".

Fig 1: Locating Brake Discs Surface Fracture
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Check surface roughness (Rk) of brake discs (max. 80 μm permitted) since this affects braking comfort (noises), braking behavior/pedal pressure and brake-pad service life → 465102 CHECKING FRONT PCCB BRAKE DISC (WEAR ASSESSMENT) - section on "Checking".

Fig 2: Identifying Surface Roughness Of PCCB Brake Disc
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Check brake discs for minimum thickness -X- . The minimum brake disc thickness (e.g. Min. Th. 37.7 mm) is stamped on the brake-disc chamber → 465102 CHECKING FRONT PCCB BRAKE DISC (WEAR ASSESSMENT) - section on "Checking".

Fig 3: Identifying Minimum Thickness Of PCCB Brake Disc
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Check brake discs for edge damage -see pictureFig 4- (damage due to improper use) → 465102 CHECKING FRONT PCCB BRAKE DISC (WEAR ASSESSMENT) - section on "Checking".

Fig 4: Identifying PCCB Brake Disc Damage Edge
Courtesy of PORSCHE CARS NORTH AMERICA, INC.