18 31 Exhaust system
WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. 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 |