Installing the rear power distribution box
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:
Schematic diagram is for example purposes. Some parts may differ in certain details.
- Position the positive battery cable (3) at the power distribution (4).
- Tighten nut (2).TIGHTENING TORQUES SPECIFICATION
Positive battery cable Flange nut M8 tightening torque 15 Nm - Close the cover (1).NOTE: TECHNICAL INFORMATION
Fuses can be pushed out of their correct end positions when connecting the connectors.
While connecting the connector, counter support it against the fuse side.
After locking the connector, check if the fuse layout is complete and ensure the correct end position of the individual fuses. - Connect all connectors and lock.NOTE: TECHNICAL INFORMATION
Attention! Wiring harnesses must be laid and fixed in such a way that no tensile loads act on the wiring harness and its plug connections. - Position the wiring harness (1) in such a way that there is no tensile load on the connector and wiring harness.
- Feed in the new cable ties (1) through both of the openings on the power distribution and tighten them.
- Check all fuses for their correct end position and lock them in place correctly.
- Position the power distribution (2) correctly and engage it into the holder (3).
Detents (1) must engage correctly.
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 CONNECTING ALL BATTERY GROUND LEADS .
- Refer to ACTIVATING THE 48 V ELECTRICAL SYSTEM .