does anyone know what the internal pressure should be on the aircon system. I've recently changed the condensor, compressor for new ones and a re-gas. Since all the work has been done, the aircon works but. I'm getting a high pitched air/ metalic noise inside the cabin that can't be heard from outside the car. I did think it was the interior fan but is not that. Does anyone have any ideas as to what the fault is before I call the local aircon guy on Monday.

I have the same issue. Pressure on my system is about 7 bar when working, but it wasnt blowing cold?

I get about 8 bar I think, check about 2 weeks ago before I went on hols. I does run cold but the noise is annoying.