Installing the 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.
- Position control unit (3) .
- Tighten nuts (2) .
TIGHTENING TORQUE SPECIFICATIONS
| Control unit for the locking differential | ||
| Plastic nut with flange | Tightening torque | 3 Nm |
| M6 | Tightening torque | 8 Nm |
- Connect connectors (1) and lock.
Follow-up work
- Refer to INSTALLING LUGGAGE COMPARTMENT WHEEL ARCH TRIM PANEL ON RIGHT .
- Refer to INSTALLING THE TOP LUGGAGE COMPARTMENT TRIM PANEL .
- Refer to INSTALLING LOADING EDGE TRIM .
- Refer to INSTALLING LUGGAGE COMPARTMENT FLOOR COVERING .
- Refer to CONNECTING ALL BATTERY GROUND LEADS .
- Refer to ACTIVATING THE 48 V ELECTRICAL SYSTEM .
- Refer to ENCODING/PROGRAMING CONTROL UNIT(S) .
- Refer to IF PROGRAMMING/CODING HAS FAILED: READING DATA FROM REAR AXLE DIFFERENTIAL .
- Refer to WHEN REPLACING (CONTROL UNIT): PERFORMING SERVICE FUNCTION "SELF-LOCKING DIFFERENTIAL CONTROL UNIT REPLACEMENT "