Ferrari California Workshop Manual page 161

Remove the collar (21).
Disconnect the pipe (22) from the expansion tank.
ONLY for vehicles WITHOUT single oil heat
exchanger
Release the indicated clips.
Loosen the screw collar (23).
Disconnect the coolant pipe (24).
ONLY for vehicles WITH single oil heat
exchanger UP TO Assembly No. 91552
Undo the indicated screw and retrieve the
retainer fork (23).
Disconnect the coolant pipe (24) from the block
(44).