11 12 101 Replacing cylinder head gasket (N55)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT: Aluminum screws/bolts must be replaced each time they are released .
Aluminum screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Aluminum screws/bolts are not magnetic .
Jointing torque and angle of rotation must be observed without fail (risk of damage) .

Necessary preliminary tasks:

Remove CYLINDER HEAD .
Check cylinder head for DEVIATION FROM FLATNESS .
Check cylinder head for WATERTIGHTNESS .

Remove the cylinder head gasket.

Insert special tool 11 4 430 into feed pipe of oil pump.

Fig 1: Removing Cylinder Head Gasket

G09844419

Courtesy of BMW OF NORTH AMERICA, INC.

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

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 Oil And Dirt Blind Holes

G09844420

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 3: Identifying Adapter Sleeves

G09844421

Courtesy of BMW OF NORTH AMERICA, INC.

The cylinder head gasket on the N55 is a beaded metal gasket.

Fig 4: Identifying Cylinder Head Gasket Mark

G09844422

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fix new cylinder head gasket with fitting sleeves (1).

Fig 5: Placing Cylinder Head Gasket

G04751052

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.