11 12 719 Resurfacing cylinder head sealing surface (M52 / M52TU / M54 / M56)

WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, and 2001 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

(Cylinder head dismantled.)

Check flatness of cylinder head sealing surface with a commercially available straightedge.

Deviation from flatness max. 0.05 mm.

Fig 1: Using Straightedge To Check Cylinder Head Flatness

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Machining limit, refer to ENGINE - TECHNICAL DATA .

Fig 2: Identifying Machining Limit

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For compression comparison check, a repair cylinder head seal is provided.

Fig 3: Locating Repair Cylinder Head Seal

Courtesy of BMW OF NORTH AMERICA, INC.