Does the 456M GTA have a site glass for A/C refrigerant level? Where is it located?
Sight glasses are usually found on receiver-dryers (dehydrator filters). 1) Go to parts manual and find this (on the air-conditioning system page): https://www.eurospares.co.uk/parts/ferrari/456-m-gt-m-gta/cooling-heating/air-conditioning-system-19344 2) Google part number of dehydrator filter to see if there are any images of them showing sight glasses.
