Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1237 Electrical Machine, Individual Components
2021 BMW i3 Range ExtenderSECTION 1237 Electrical Machine, Individual Components
1237 TIGHTENING TORQUE OVERVIEW
| Brush module lid to housing | ||
| M8 | Tightening torque | 15 Nm |
| Angle of rotation | 90° | |
| Brush module lid to housing | ||
| M6 | Tightening torque | 8 Nm |
| Angle of rotation | 60° | |
| Brush module to housing | ||
| M6 | Tightening torque | 8 Nm |
| Circlip on housing | ||
| M5 Replace screw. |
Tightening torque | 4.5 Nm |
| Circlip to housing | ||
| M5 Replace screw. |
Tightening torque | 4 Nm |
| Excitation cable to brush module | ||
| M5 | Tightening torque | 4 Nm |
| Lid of electrical machine electronics to housing | ||
| M6 Replace screw. |
Tightening torque | 8 Nm |
| Angle of rotation | 60° | |
| Lid of high-voltage connection to housing | ||
| M5 | Tightening torque | 6 Nm |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.