The A/C on my 1980 308 is not operable, and wasn't when I bought the car but would like to have it repaired. Now being an old car I assume that needs to be upgraded to new refridgerant. My question is has any one done this to an 80's vintage 308, does the new stuff work, and how big of a job was it for the garage/shop that did the work? There is no Ferrari mechanic anywhere near area and could a "normal" automotive A/C repair shop do the job, or is the 308 A/C some unique one off system that only a Ferrari mechanic have thew tools to do the job? Thanks for any advice.