Removing and Installing/Replacing Front Exhaust Manifold

18 40 050 Removing and installing/replacing front exhaust manifold (N52T)





Necessary preliminary work:
^ 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 1 to 3.

Remove monitoring sensor from cylinders 1 to 3.





Unscrew nuts.

Remove exhaust manifold (1).

Installation note:
Clean sealing surfaces and replace seals.

Replace nuts.

Tightening torque 18 40 1AZ.





Assemble engine.

Check exhaust system for leak tightness.