Removing control unit for self-locking differential
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.
NOTE:
TECHNICAL INFORMATION
If the individual data recovery for the GHAS control unit failed, the data must be read from the sticker on the rear axle differential and entered using the keyboard. Reading the data using an endoscope (see special tool).
If the individual data recovery for the GHAS control unit failed, the data must be read from the sticker on the rear axle differential and entered using the keyboard. Reading the data using an endoscope (see special tool).
Preliminary work
- Refer to DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to REMOVING LUGGAGE COMPARTMENT FLOOR COVERING .
- Refer to REMOVING THE LOADING EDGE TRIM .
- Refer to REMOVING THE UPPER LUGGAGE COMPARTMENT TRIM PANELS .
- Refer to REMOVING RIGHT LUGGAGE COMPARTMENT WHEEL ARCH TRIM PANEL .
- Unlock and disconnect plug connections (1) .
- Release nuts (2) .
- Remove control unit (3) .