I arrived with the problem "the air conditioner is not working", the master opened the hood, screwed on the hoses of the freon injection device, after which he said that I had a low-pressure nozzle of the compressor to the radiator and there was no point in doing anything. I was charged 5,000 rubles for such a "diagnosis".
After that, I asked how much the repair would cost.
They said that the repair would cost 15,000 rubles. At the same time, a new tube (along with gaskets) on the market cost me 3,500 rubles and it is held on two nuts. I changed the tube myself, refueled the system for 1,500 rubles, and the problem of the "non-working" air conditioner, with which I arrived, turned out to be not in the pipe at all.
This is the diagnosis for 5 thousand.