11 12 101 Replacing Cylinder Head Gasket (N54)

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

For the following special tools, refer to ENGINE- SPECIAL TOOLS .

11 4 430
11 4 470

Necessary preliminary tasks:

Remove cylinder head .

Insert special tool 11 4 430 into bores.

Remove head gasket.

IMPORTANT: Check identification (1) on cylinder head gasket (N54).

Fig 1: Identifying Cylinder Head Gasket Identification Mark

Courtesy of BMW OF NORTH AMERICA, INC.

Remove remnants of oil and dirt from pocket holes (1).

IMPORTANT: Work on sealing face on engine block and on cylinder head with special tool 11 4 470 only.
Do not use any metal-cutting tools.

Fig 2: Identifying Pocket Holes

Courtesy of BMW OF NORTH AMERICA, INC.

Identification (1) of head gasket (N54).

Gasket (3) is a sheet-metal gasket with rubber coating.

Fig 3: Identifying Head Gasket Identification Mark

Courtesy of BMW OF NORTH AMERICA, INC.

Check adapter sleeves (1) for damage and firm seating.

Place head gasket (2) in direction of arrow on engine block.

Fig 4: Direction Of Placing Head Gasket

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Check cylinder head for deviation from flatness . See 11 12 719 RESURFACING CYLINDER HEAD SEALING FACE (N54) . Check cylinder head for water leaks . See 11 12 729 CHECK CYLINDER HEAD FOR WATER LEAKS (N54) .

Assemble engine.