Clean cylinder head sealing surfaces

NOTE: TECHNICAL INFORMATION
Do not use any metal-cutting tools.
Otherwise, there is a risk of damage.

Remove the coarse seal residue using special tool 0 495 102 (11 4 470) .

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
Clean all threads with compressed air.
Remove the fine seal residue using special tool 0 495 102 (11 4 470) .

Courtesy of BMW OF NORTH AMERICA, INC.