Thank you very much for your reply.
Audi dealership is trying to solve this problem since october 2023. After the diagnosis they find error P044100 - EVAP emission incorrect. The solution was to change N80 valve, but the problem came back! Every 2000km, more or less, the problem returns and i have to stop the car, shut off engine and restart the car so that the system works normally again. I went back to the workshop more than 10 times and they changed practically everything in the EVAP system, but without success. Next appointment at the dealership will be on the 11th. I'm curious about what they'll replace this time...
