Removing and Installing/Replacing Front Exhaust Manifold (N52)

18 40 050 - Removing and installing/replacing front exhaust manifold (N52)





Necessary preliminary tasks:
- Remove acoustic cover 11 00 ... Removing and Installing/Replacing Acoustic Cover

- Remove complete exhaust system Service and Repair

- Remove right engine support arm Replacing Right Engine Mount (N52/N52K/N53)





Note:
The oxygen sensors are in danger of being damaged when the exhaust manifolds are removed and installed.

Remove control sensor from cylinders 1 to 3.

Remove monitor sensor from cylinders 1 to 3.





Unscrew nuts.
Remove exhaust manifold (1).

Installation:
Clean sealing faces and replace seals.
Replace nuts.
Tightening torque 18 40 1AZ 18 40 Exhaust Manifold.