Installing starter motor
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.
- Feed in and install the starter motor (5).
- Tighten the screws (4).
TIGHTENING TORQUE SPECIFICATIONS
| Starter motor to crankcase | ||
|---|---|---|
| M8x60 | Tightening torque | 19 Nm |
- Insert the positive battery cable (3) and install it.
- Tighten the nut (2) hand-tight.
- Connect connectors (1) and lock.
The connector (1) must engage audibly.
CAUTION:
Improper routing of the positive battery cable
.
Risk of short circuits!
Risk of short circuits!
- Route the positive battery cable without abrasions and do not trap.
NOTE:
Schematic diagram is for example purposes. Some parts may differ in certain details.
- Attach the positive battery cable (1) correctly to antitwist lock (2).
- Tighten nut (3).
TIGHTENING TORQUE SPECIFICATIONS
| Battery positive lead to starter | ||
|---|---|---|
| M8 | Tightening torque | 15 Nm |
Follow-up work
- Refer to INSTALLING THE STIFFENING PLATE .
- Refer to INSTALLING THE LEFT AND RIGHT FRONT UNDERSHIELD .
- Refer to INSTALLING FRONT UNDERBODY PROTECTION .
- Refer to INSTALLING THE FRONT SPOILER .
- Refer to CONNECTING ALL BATTERY GROUND LEADS .