11 12 112 Replacing both cylinder head gaskets (S65)

WARNING: This page is about a different variant/trim than selected.

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:

Make sure oil bore (1) is clean.

NOTE: Picture shows S85.

Fig 1: Identifying Oil Bore

G04741542

Courtesy of BMW OF NORTH AMERICA, INC.

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

Clean sealing faces with special tool 11 4 470.

Do not use any metal-cutting tools.

Fig 2: Identifying Dowel Sleeves

G06203080

Courtesy of BMW OF NORTH AMERICA, INC.

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

Clean sealing faces with special tool 11 4 470.

Do not use any metal-cutting tools.

Fig 3: Identifying Dowel Sleeves

G06203081

Courtesy of BMW OF NORTH AMERICA, INC.

Remove spacer sleeves (1) in direction of arrow.

NOTE: Picture show cylinder bank 2. Procedure for cylinder bank 1 is identical.

Fig 4: Removing Spacer Sleeves

G06203082

Courtesy of BMW OF NORTH AMERICA, INC.

Remove non-return valves (1) in direction of arrow.

Fig 5: Removing Non-Return Valves

G06203083

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace spacer sleeves (1) and non-return valves (2).

Note installation direction of non-return valves (2).

Fig 6: Identifying Spacer Sleeves And Non-Return Valves

G06203084

Courtesy of BMW OF NORTH AMERICA, INC.

Replace head gasket (1) for cylinders 1-4.

Fig 7: Identifying Head Gasket

G06203085

Courtesy of BMW OF NORTH AMERICA, INC.

Replace head gasket (1) for cylinders 5-8.

Fig 8: Identifying Head Gasket

G06203086

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: There is no oversize gasket for the S65 engine.

Assemble engine.