18 40 060 Removing and installing/replacing rear exhaust manifold (N52/N52K/N51)
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2008 BMW 328xi, 2008 BMW 328i, 2008 BMW 323i, 2007 BMW 328xi, and 2007 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
- Remove IGNITION COIL COVER .
- Remove COOLANT EXPANSION TANK .
- Remove UNDERBODY PROTECTION .
- Remove COMPLETE EXHAUST SYSTEM .
- Remove RIGHT ENGINE SUPPORT ARM .
NOTE:
The oxygen sensors are in danger of being damaged when the exhaust manifolds are removed and installed.
Remove CONTROL SENSOR from cylinders 4 to 6.
Remove MONITOR SENSOR from cylinders 4 to 6.
Unscrew nuts.
Remove exhaust manifold (1).
Installation:
Clean sealing faces and replace seals.
Replace nuts.
Tightening torque, 18 40 1AZ. Refer to 18 40 EXHAUST MANIFOLD .