18 40 020 Removing and installing/replacing right exhaust manifold (N62)
WARNING: This page is about a different car, the 2005 BMW 745i, 2004 BMW 745i, 2003 BMW 745i, and 2002 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Scalding hazard!
Only perform these tasks on an engine that has cooled down.
Only perform these tasks on an engine that has cooled down.
Necessary preliminary tasks:
- Remove right control sensor. Refer to 11 78 533 REPLACING RIGHT OXYGEN CONTROL SENSOR (N62) .
- Remove right monitor sensor. Refer to 11 78 543 REPLACING RIGHT OXYGEN MONITOR SENSOR (N62) .
- Remove complete exhaust system. Refer to 18 00 020 Removing and installing complete exhaust system (N62) .
- Secure engine in installation position with special tool. Refer to SECURING ENGINE IN INSTALLATION POSITION WITH SPECIAL TOOL (N62) .
- E65 only:
Remove intake filter housing. Refer to 13 71 000 REMOVING AND INSTALLING INTAKE FILTER HOUSING (N62) .
- Lower front axle support. Refer to FRONT AXLE SUPPORT .
- E65 only:
Remove A/C compressor drive belt. Refer to 11 28 050 REPLACING A/C COMPRESSOR DRIVE BELT WITH BELT TENSIONER (N62) .
- Remove right engine support arm. Refer to 22 11 100 REPLACING RIGHT ENGINE SUPPORT ARM (N62/N62TU) .
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:
Replace seals.
Beads of seals face the exhaust manifold.
Coat threads with copper paste.
Replace nuts.
Tightening torque 11 62 1AZ. Refer to ENGINE - TIGHTENING TORQUES .