18 40 060 Removing And Installing/Replacing Rear Exhaust Manifold (N52, N52K)
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.
Necessary preliminary tasks:
- Remove acoustic cover . See 11 00 REMOVING AND INSTALLING/REPLACING ACOUSTIC COVER (N52/N52K) .
- Remove coolant expansion tank . See 17 11 100 REMOVING AND INSTALLING/REPLACING COOLANT EXPANSION TANK (N46, N45, N52, N52K, N51, N53) .
- Remove underbody protection . See 51 47 490 REMOVING AND INSTALLING/REPLACING FRONT UNDERBODY PROTECTION .
- Remove complete exhaust system . See EXHAUST SYSTEM COMPLETE .
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. See 18 40 1AZ in 18 40 EXHAUST MANIFOLD .
Add final details to vehicle.
Check exhaust system for leaks.