Necessary preliminary work

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2011 BMW 323i, 2010 BMW 328xi, and 2010 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.

Remove IGNITION COIL COVER
Release COOLANT EXPANSION TANK and place to one side.

Do not remove the expansion tank and doe not drain coolant.

Remove UNDERBODY PROTECTION
Remove COMPLETE EXHAUST SYSTEM .

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 MONITORING SENSOR from cylinders 4 to 6.

Unscrew nuts.

Remove exhaust manifold (1).

Installation note:

Clean sealing surfaces and replace seals.

Replace nuts.

Tightening torque, 18 40 1AZ

Fig 1: Identifying Exhaust Manifold With Mounting Nuts

Courtesy of BMW OF NORTH AMERICA, INC.