Removing and Installing/Replacing Right Exhaust Manifold

18 40 020 - Removing and installing/replacing right exhaust manifold (N73)





Warning!
Scalding hazard!
Only perform these tasks on an engine that has cooled down.





Necessary preliminary tasks:
- Remove right oxygen control sensor. Replacing Right Lambda Oxygen Control Sensor
- Remove right oxygen monitor sensor. Replacing Right Lambda Oxygen Monitor Sensor
- Remove complete exhaust system. Removing and Installing Complete Exhaust System
- Secure engine in installation position with special tool. Securing Engine in Installation Position
- Remove intake filter housing.
- Lower front axle support. Lowering/Raising Front Axle Carrier





For purposes of clarity, nuts are shown on removed engine.
Release nuts on exhaust manifold.
Remove exhaust manifold towards bottom and pull out towards rear.
Illustrations show N62.





Installation Note:
Replace seals.
Seal beads faces the exhaust manifold.
Coat threads with copper paste.
Replace nuts.
Tightening torque 11621AZ [1][2]11 62 Exhaust Manifold.





Assemble exhaust system.

Installation Note:
Check exhaust system for leaks.
Check function of DME.