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.