Wear Areas On Brake Disc Friction Surface
WARNING: This page is about a different car, the 2024 Porsche Macan, 2023 Porsche Macan, 2022 Porsche Macan, 2021 Porsche Macan, and 2020 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.
As the press-on force of the brake piston on the brake pad varies in magnitude, different areas of wear occur on the friction surface.
The brake disc essentially has different wear areas - the inner/outer -LHD vehicle - and central wear area -RHD vehicle - :
The central wear area -RHD vehicle - is the area with the highest degree of wear.
Measurement points on brake disc
LHD vehicle Inner/outer wear area
RHD vehicle Central wear area