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 MECHANICALMECHANICALENGINE -- TIGHTENING TORQUES (I01)1131 CAMSHAFT
2021 BMW i3 Range Extender
1131 Camshaft
2021 BMW i3 Range ExtenderSECTION 1131 Camshaft
11 31 CAMSHAFT - TIGHTENING TORQUE SPECIFICATIONS
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Camshaft bearing cap to cylinder head | W20 | M6x35 | Insert bolts dry. | 10 Nm |
| 2AZ Guide rail to crankcase | W20 | M6x30 | 10 Nm | |
| 3AZ Tensioning rail to crankcase | W20 | 20 Nm | ||
| 4AZ Screw plug, chain tensioner | W20 | M6x25 | Replace gasket | 9 Nm |
| 5AZ Chain tensioner to cylinder head | W20 | M6 | Replace gasket | 10 Nm |
| 6AZ Chain guide to cylinder head, top | W20 | M6x60 | 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.