18 31 Exhaust system
WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.
TIGHTENING TORQUE SPECIFICATIONS - EXHAUST SYSTEM
| Type | Thread | Tightening specifications | Dimension | ||
|---|---|---|---|---|---|
| 1AZ | Exhaust system to catalytic converter | N63 B44 O 0 | nut M8 | 20 Nm | |
| N63 B40 O 1/N63 B44 O 1 | Clamp | 55 Nm | |||
| 2AZ | Exhaust manifold to cylinder head | N63 B44 O 0 | nut M8 | 15 Nm | |
| 3AZ | Heat shield to cylinder head | N63 B44 O 0/N63 B40 O 1/N63 B44 O 1 | M6 | 10 Nm | |
| 4AZ | Clamp to exhaust manifold | N63 B44 O 0/N63 B40 O 1/N63 B44 O 1 | M8 | 23 Nm | |