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.
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HOMESERVICE MANUALSBMW2021I3 RANGE EXTENDERREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE -- TIGHTENING TORQUES (I01)1112 CYLINDER HEAD
2021 BMW i3 Range Extender
1112 Cylinder Head
2021 BMW i3 Range ExtenderSECTION 1112 Cylinder Head
11 12 CYLINDER HEAD WITH CYLINDER HEAD COVER - TIGHTENING TORQUE SPECIFICATIONS
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Cylinder head nuts | W20 | M10 | Joining torque | 30 Nm |
| 1. Angle of rotation | 90° | |||
| 2. Angle of rotation | 90° | |||
| 2AZ Cylinder head bolt | W20 | M6x50 | 10 Nm | |
| 3AZ Cylinder head cover to cylinder head. | W20 | M6 | 10 Nm | |
| 4AZ Ground strap to cylinder head cover/engine block. | W20 | M6x12 | 10 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.