18 31 Exhaust pipe with catalytic converter/complete system (N20, N26)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. 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 | N20 | M8 | 26±2 Nm | |
| N26 | M8 | 25 Nm | |||
| 2AZ | Catalytic converter to turbocharger | N20/N26 | M8 | Replace clamp | 13 Nm |
| 3AZ | Exhaust system to rear axle final drive | N20/N26 | M12 | 35 Nm | |
| 4AZ | Clamp | N20/N26 | 45 Nm | ||
| 5AZ | Exhaust system to body | N20/N26 | M8 | 21 Nm | |
| 6AZ | Exhaust system on transmission cross-member | N20/N26 | M8 | 21 Nm | |
| 7AZ | Actuator drive for exhaust system to exhaust system | N20/N26 | M6 | 9 Nm | |