Hello back, have bought me a Phaeton again. It is a 3.0 diesel from 2011. The air conditioning does not cool and I am a bit at a loss. Refrigerant 600g are inside and have also been sucked off. The system is tight. The fan does not start, but was controlled by a tester. It then runs on all stages. The compressor also runs. The error memory is clean and contains no entries. A reset via the car button also does not change anything. n not cold. What has been noticed is that the system shows in stand 7bar. Should only be 4 bar. Why, however, can no one explain to me. Since I do not want to exchange unnecessary parts, here is the question to the experts, whether someone has ever had one or another. The assumption goes to the pressure switch or expansion valve. Can someone tell me if the exchange is feasible for a not mechanic? Thank you and best regards