18 31 Exhaust pipe with catalytic converter/complete system
WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2017 BMW M6, 2017 BMW 650i xDrive, 2017 BMW 650i, 2017 BMW 640i xDrive, and 2017 BMW 640i. 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 | Turbo module with exhaust manifold to cylinder head | N55/N55 Hybrid | M7 | 13 Nm | |
| 7AZ | Clamp between center silencer and rear silencer | N55/N55 Hybrid | M10 | 45 Nm | |
| 8AZ | Clamp between front pipe and center silencer | N55/N55 Hybrid | M10 | 45 Nm | |