Check rear brake disc
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 BMW M5, 2022 BMW M5, 2021 BMW M5, 2020 BMW M5, and 2019 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.
Check
- Check surface and thickness of brake discs.
Result
» Brake disc thickness has fallen below the minimum.
Scoring, heat cracks or thickness differences are present.
Measure
- Replace brake discs.
34 21 320 Removing and installing/replacing both brake discs
Measure minimum brake disc thickness (rear brake)
- Check minimum brake disc thickness:
Place the special tool 0 495 451 (34 1 280) at three measuring points in area (1) and measure.
Compare measurement result and lowest value with setpoint value.
New brake pads may only be installed if the brake disk thickness is greater than the minimum brake disk thickness.
The minimum brake disc thickness is embossed on the brake disk.