12 42 BATTERY POSITIVE CABLE (M4 Convertible)
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.
12 42 TIGHTENING TORQUE OVERVIEW
| Battery positive lead to battery positive terminal |
| M8 |
Tightening torque |
19 Nm |
| Battery positive lead to starter |
| M8 |
Tightening torque |
15 Nm |
| Holder, positive battery cable to cylinder head cover |
| Self-tapping plastic screw 6 x 18 |
Tightening torque |
8 Nm |