18 00 Exhaust Assembly
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.
EXHAUST ASSEMBLY TIGHTENING SPECIFICATION
| Type | Thread | Description | Tightening Specification | |
|---|---|---|---|---|
| 1AZ Primary catalytic converter to turbocharger/or jacket pipe to catalytic converter | M57 / M57TU | M10 | 42 Nm | |
| M67 | 15 Nm | |||
| M30 / M70 | Tighten down compression spring with nut uniformly to full extent, then slacken by 1.5 turns | 10 Nm | ||
| M51 | Preload compression springs with nut to 27± 1 mm | |||
| S50 | M10 | 30 Nm | ||
| S54 / ECE | M10 | 27 Nm | ||
| S54 / US | M10 | 24 Nm | ||
| 2AZ Exhaust pipe to flow section | E23 | 25 Nm | ||
| 3AZ Clamp for final muffler | All | M8 | 15 Nm | |
| 4AZ Catalytic converter on silencer | E36 / M42 / M43 / M44 | Version with compression spring: Evenly preload compression springs with nuts to 30 mm | ||
| 5AZ Connection of positive and negative leads to E catalytic converter | M73 | 5 Nm | ||
| 6AZ Rear muffler to intermediate muffler | E53 | M8 | 30 Nm | |
| 7AZ Vacuum tank to retaining plate | E46 / M54 | M8 | 10 Nm | |
| 8AZ Exhaust system to exhaust manifold | M40 / M42 / M43 / M44 | M10 | 45 Nm | |
| 9AZ Primary cat. to exhaust system | M57TU / E65 | 55 Nm |