Removing and Installing / Replacing Right Exhaust Manifold

18 40 020 - Removing and installing/replacing right exhaust manifold (N62, N62TU)





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





Necessary preliminary tasks:
- Remove right control sensor Replacing Right Lambda Oxygen Control Sensor
- Remove right monitor sensor Replacing Right Lambda Oxygen Monitor Sensor
- Remove complete exhaust system Service and Repair
- Secure engine in installation position with special tool Securing Engine in Installation Position
- E65 only:
Remove intake filter housing
- Lower front axle support Lowering / Raising Front Axle Carrier
- E65 only:
Remove A/C compressor drive belt Replacing A/C Compressor Drive Belt With Belt Tensioner (N62/N62TU)
- Remove right engine support arm Replacing Right Engine Support Arm
- BMW ALPINA B7 vehicles:
- Remove exhaust temperature sensor
Release screw connection of A/C compressor.
Place A/C compressor to one side and secure A/C system line so as to improve accessibility to nuts on exhaust manifold.





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.





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