11 12 112 Replacing Both Cylinder Head Gaskets (S85)

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2010 BMW M6, 2010 BMW M5, 2009 BMW M6, 2009 BMW M5, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove Left Cylinder Head .
Remove Right Cylinder Head .
Check cylinder head for leaks .

IMPORTANT: Do not open screw plugs.
The screw plug must always be replaced if it is opened by mistake.

Installation:

If necessary, replace non-return valve with spacer sleeve (1).

Fig 1: Identifying Spacer Sleeve

Courtesy of BMW OF NORTH AMERICA, INC.

Check dowel sleeves (1) for damage and correct installation position.

Installation:

Clean sealing surfaces.

Illustration shows cyl. 6-10.

Fig 2: Identifying Dowel Sleeves

Courtesy of BMW OF NORTH AMERICA, INC.

Replace head gasket (1).

NOTE: Illustration shows cyl. 1-5.

Fig 3: Identifying Head Gasket

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: There is no oversize gasket for the S85 engine.

Assemble engine.