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.
2021 BMW i3 Range ExtenderFACTORY OEM SERVICE PROCEDURE
1100 Engine
1100 TIGHTENING TORQUE OVERVIEW
| Standard screw connection 4 Nm | ||
| Oval-head screw | Tightening torque | 4 Nm |
| Standard screw connection hose clamp 5 | ||
| Hose clamp L12 - L15 | tightening torque | 1.25 Nm |
| Standard screw connection M10 | ||
| M10 | Tightening torque | 38 Nm |
| Standard screw connection M5 | ||
| M5 | Tightening torque | 5 Nm |
| Standard screw connection M6 | ||
| M6 | Tightening torque | 8 Nm |
| Standard screw connection M7 | ||
| M7 | Tightening torque | 13 Nm |
| Standard screw connection M8 | ||
| M8 | Tightening torque | 19 Nm |
Factory Service Tools
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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.
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