11 12 101 Replacing cylinder head gasket (B48AO0)

Special tools required: 

• 11 4 470

Necessary preliminary tasks: 

• Remove CYLINDER HEAD .
• Check CYLINDER HEAD FOR WATERTIGHTNESS 
• Check CYLINDER HEAD FOR DEVIATION FROM FLATNESS 

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

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

Courtesy of BMW OF NORTH AMERICA, INC.

Courtesy of BMW OF NORTH AMERICA, INC.

The cylinder head gasket (1) can only be checked using the part number.

Installation note: 

If the cylinder head is remachined, a thicker gasket (+0.3 mm)  is available for Service personnel.

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: 

• Install the CYLINDER HEAD 
• Assemble engine