The AC sometimes starts and sometimes it doesn't I thought it was just lacking of freon gas but wasn't that as also after feeling it with gas it had the same issue.
When the AC isn't working I don't hear the AC sound, and of course when it's working I hear the classic AC sound, and another "thingy" is that when I push the car around 120km/h the AC keeps working more , and also some times if isn't working and I hit the turbo increasing the RPM and making the car scream like a sport car , suddenly the AC starts (but I don't do thsi all the time) and it's just my impression of daily-use. Another detail is that at night when the temperature is lower the air is cooler (when the AC is working) , not during the day however, or I have the sensation that at night is working more.
When it's stop working (or doesn't start at all) it just push hot air in the car. Another strange issue with it is that sometimes it smells like mold coming from the AC.
Could it be the compressor clutch relay?