Hi everyone, This is my first post in this forum.
So a couple of months ago I bought a 2008 523i with 105,000 miles on the clock. The car is in great condition and everything runs fine except for the A/C, the damn thing is driving me nuts!! When I turn on the ac it seems to run and blows cold air (not freezing cold) for a couple of minutes then it just starts blowing ambient air in the cabin, and whenever the car is in motion or if i rev it slightly while parked it starts blowing ambient/warm air in. I tried vaccuming the system and regassing with R134 twice, same problem .. What seems to be causing this ? Compressor? Expansion valve? Something else ?? I'm cluless