1840060 Removing and installing/replacing rear exhaust manifold (N51)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2010 BMW 328xi, 2010 BMW 328i, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks
- Remove front UNDERBODY PROTECTION
- Remove rear UNDERBODY PROTECTION
- Remove COMPLETE EXHAUST SYSTEM
- REMOVE LOWER SECTION OF MICROFILTER HOUSING
- REMOVE ACOUSTIC COVER
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 .
Reassemble the vehicle.
Check exhaust system for leaks.