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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Engine - Repair - R55 & R56 (N12)) >> Cylinder Head With Cover >> 11 12 101 Replacing cylinder head gasket (N12)

11 12 101 Replacing cylinder head gasket (N12)

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

Special tools required: 

Necessary preliminary tasks: 

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.
NOTE: Illustration shows N52.
Fig 1: Identifying Pocket Holes (1)
G04725392Courtesy of BMW OF NORTH AMERICA, INC.

Note identification marking on head gasket.

IMPORTANT: Rubber coating on cylinder head gasket must not be damaged under any circumstances.
If the cylinder head is re-machined, a thicker coating + 0.3 mm is also available for service personnel.

Gasket (1) is a sheet-metal gasket

Fig 2: Identifying Gasket
G05515489Courtesy of BMW OF NORTH AMERICA, INC.

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

Lay cylinder head gasket on engine block.

Fig 3: Identifying Adapter Sleeves
G05515490Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Check cylinder head for deviation from flatness. 
Check cylinder head for water leaks. 

Assemble engine.