Remove camshaft sprocket cover.
Remove/pull off camshaft sprocket.
Note: If the camshaft sprocket (1) is not removed after loosening, it must be held firmly and prevented from falling into the engine block (e.g. with a cable strap).
Remove valve gear carrier.
Secure rockers with a rubber band (2).
Note: If no work is to be carried out on the valve gear carrier, remove it together with the cylinder head.