18 31 Exhaust system
WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. 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 |