18 31 Exhaust pipe with catalytic converter/complete system
WARNING: This page is about a different car, the 2015 BMW 740Li, 2014 BMW 740Li, and 2013 BMW 740Li. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATIONS - EXHAUST PIPE WITH CATALYTIC CONVERTER/COMPLETE SYSTEM
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Exhaust system to catalytic converter | N55/N55 Hybrid | Clamp | 55 Nm | |
| 2AZ Front pipe with catalytic converter to turbocharger | N55/N55 Hybrid | M8 x 40 | Replace V-band clamp. | 13 Nm |
| 3AZ Exhaust system to body | N55/N55 Hybrid | M8 | 21 Nm | |
| 4AZ Reinforcement plate to body | N55/N55 Hybrid | M8 | 19 Nm | |
| 5AZ Metering pump to reinforcement plate | N55/N55 Hybrid | M6 | 8 Nm | |
| 6AZ Turbomodule with exhaust manifold to cylinder head | N55/N55 Hybrid | M7 | 13 Nm | |
| 7AZ Clamp between centre silencer and rear silencer | N55/N55 Hybrid | M10 | 45 Nm | |
| 8AZ Clamp between front pipe and centre silencer | N55/N55 Hybrid | M10 | 45 Nm |