61 20 Battery (M4 2021-2023)
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.
61 20 TIGHTENING TORQUE OVERVIEW
| Battery carrier to body | ||
| M8 screw | Tightening torque | 19 Nm |
| Battery ground lead to body | ||
| Flange nut M8 | Tightening torque | 15 Nm |
| Battery rollover protection bracket to luggage compartment floor | ||
| screw | Tightening torque | 8 Nm |
| Battery tray for 48 volt battery | ||
| M6 screw | Tightening torque | 8 Nm |
| Battery tray to body | ||
| M8 screw | Tightening torque | 19 Nm |
| Battery tray to body | ||
| M6 screw | Tightening torque | 8 Nm |
| Negative battery cable to 48-V battery | ||
| Nut M8 | Tightening torque | 19 Nm |
| Negative battery terminal | ||
| Nut | Tightening torque | 5 Nm |
| Positive battery cable to 48-V battery | ||
| Nut M8 | Tightening torque | 19 Nm |
| Positive battery terminal to battery | ||
| Nut | Tightening torque | 5 Nm |