Carrying out the brake fluid change service function

WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.

Connect ICOM to the OBD interface.
Start the diagnostic system:
- Performing vehicle identification without vehicle test
- Vehicle handling
- Service functions
- Chassis
- Integrated brake system
- Brake fluid change