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
Drive module
41 11 DRIVE MODULE - TIGHTENING TORQUES SPECIFICATIONS
| Type | Thread | Tightening specifications | Dimension | |||
|---|---|---|---|---|---|---|
| 1AZ Strut, horizontal to drive module | I01 | Screw, M10 | 56 Nm | |||
| I01 | Screw, M8 | 28 Nm | ||||
| 2AZ Cross member, rear to drive module | I01 | M10 screw | 56 Nm | |||
| 3AZ Drive module to body | I01 | M12 screw | 108 Nm | |||
| 4AZ Rear end strut to drive module | I01 | M10 screw | Replace screw. | |||
| Joining torque | 56 Nm | |||||
| Angle of rotation | 90° | |||||
| I01 | Screw, M8 | 28 Nm | ||||
| 5AZ Dome strut to cast shock tower/firewall | I01 | M10 screw | 56 Nm | |||
| 6AZ Grounding cable to blind rivet nut | I01 | M8 | 15 Nm | |||
| 7AZ Grounding cable to blind rivet nut | I01 / I12 | M10 | 17 Nm | |||
| 8AZ Reinforcement of side member to side member | I01 | M6 thread cutting | 4 Nm | |||
| 9AZ Reinforcement of side member to side member/strut brace | I01 | M12x1.5 | 100 Nm | |||
| 10AZ Strut brace to side member | I01 | M12x1.5 | 100 Nm | |||
| 11AZ Door sill reinforcement to Drive module | I01 | M12x1.5x23 | Replace screw. | 108 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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