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 MANUALSBMW2011335I 2D CONVERTIBLE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL SYSTEM - TIGHTENING TORQUES - E90FUEL SYSTEM13 71 INTAKE MUFFLER
2011 BMW 335i 2D Convertible, Standard
13 71 Intake Muffler
2011 BMW 335i 2D Convertible, StandardSECTION 13 71 Intake Muffler
TIGHTENING TORQUE SPECIFICATIONS - INTAKE MUFFLER
| Type | Thread | Tightening specifications | Dimension | ||
|---|---|---|---|---|---|
| 1AZ | Intake port to lock support | N55 | 2 Nm | ||
| 2AZ | Lower charge-air duct to upper charge-air duct | N55 | 2.5 Nm | ||
| 3AZ | Clean-air pipe to intake muffler | N55 | Clamp | 3 Nm | |
| 4AZ | Hot film air mass meter to clean air pipe | N55 | 2 Nm | ||
| 5AZ | Clean-air duct to cylinder head cover | N55 | 3 Nm | ||
| 6AZ | Upper clean-air pipe to lower clean air pipe | N55 | Clamp | 3 Nm | |
| 7AZ | Lower clean-air pipe to air duct | N55 | 3 Nm | ||
| 8AZ | Lower air duct to cylinder head | N55 | 8 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.