Removing and Installing/Replacing Rear Exhaust Manifold

18 40 060 Removing and installing/replacing rear exhaust manifold (N51)





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.