Do I have to replenish or net? Situation: Car was standing half a year now, I always left it for a short time in between. I couldn’t start the climate because the ambient temperature was below 5 ° C. Okay so far. Audi partner told me once 2 years ago, usually I don’t need to replenish it, only when the performance is decreasing or nothing is going on. So, now started, climate is switched on, climate is running. Then given some gas, suddenly you hear how it is cracking and climate is off. Then this game gets a few times again, now it’s going to be full again. Do I have to replenish it or net, what do you mean? I don’t want to destroy anything by waiting too long at the climate or avoid unnecessary switching it off during the ride, because it only goes on the compressor clutch if you don’t notice it and let it turn on. Audi is now only shut down19 years young and never done anything about air conditioning.