Removing the intake camshaft of cylinder bank 1

Mark guide bearing shells of the intake camshaft as shown in the graphic from (E1) to (E5).
Slacken the screws of the guide bearings with position numbers (1) and (4) in multiple steps by one half turn at a time.
Remove guide bearing shells.
Remove intake camshaft.

Courtesy of BMW OF NORTH AMERICA, INC.