I just had mine recharged. You can tell if it needs recharging by looking at the dryer (front of the engine compartment). There is a little window you can look in. If you see foam swirling around..it usually needs a recharge. Happened to me about 2 weeks ago. Anyway, I could not find anyone to recharge my old R12 refrigerant except for Tires Plus. In some counties, it's actually illegal for a repair facility to recharge the old R12 due to EPA standards and such. I had a slight leak they fixed and recharged for $200. Blows hella cold now though!