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Home >> BMW >> 2012 >> 335is 2D Coupe >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Engine - Repair - E92 >> Cylinder Head And Cylinder Head Cover >> 11 12 101 Replacing cylinder head gasket (N54, N54T)

11 12 101 Replacing cylinder head gasket (N54, N54T)

Special tools required: 

Necessary preliminary tasks 

Insert 11 4 430 special tool into bore holes.

Remove head gasket.

IMPORTANT: Check identification (1) on cylinder head gasket (N54).
Fig 1: Inserting (11 4 430) Special Tool Into Bore Holes
G09844415Courtesy of BMW OF NORTH AMERICA, INC.

There must be no fluids or contaminants in any of the threaded holes (1) for the cylinder head bolt connections.

IMPORTANT: Work on sealing surface on engine block and on cylinder head with special tool 11 4 470 only.
Do not use any metal-cutting tools.
Fig 2: Identifying Cylinder Head Bolt Connections Threaded Holes
G09844416Courtesy of BMW OF NORTH AMERICA, INC.

Identification (1) of head gasket (N54).

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

Fig 3: Identifying Head Gasket Identification, Rubber Coating And Gasket
G09844417Courtesy 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: Placing Cylinder Head Gasket
G09844418Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Check cylinder head for DEVIATION FROM FLATNESS .

Check cylinder head for WATER LEAKS .

Assemble engine.