11 12 101 Replacing cylinder head gasket (M57T2)

Necessary preliminary tasks:

Remove CYLINDER HEAD .

IMPORTANT: Replace cylinder head gasket each time cylinder head is removed.

Remove cylinder head gasket (1).

Pay attention to cylinder head gasket thickness (2), identifiable by number of holes from 1 to 3.

IMPORTANT: Clean all pocket hole tapped holes (3).
Remove oil and coolant (risk of cracking).

Clean sealing surface (4).

Fig 1: Identifying Cylinder Head Gasket And Sealing Surface

Courtesy of BMW OF NORTH AMERICA, INC.

Use cylinder head gasket with the same thickness marking (1).

Number of holes 1 to 3.

IMPORTANT: If the piston clearance is altered by machining of the sealing surface on the engine block, the cylinder head gasket must be remeasured.
(Refer to Removing and installing PISTON ).

Fig 2: Identifying Thickness Marking On Cylinder Head Gasket

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Joints between timing case cover and engine block are sealed with sealing strips stuck on as standard.

It is not necessary to apply a permanently elastic sealing compound.

Fig 3: Locating Sealant Applying Joints Of Gear Case Cover And Engine Block

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.