During My car AC working my car turn off

[jameel]

some time my 520i turn off when I switch on the AC and try to drive within
few minutes it's turn off on the way.I checked with mechanic he said air flu meter problem any body can figure out what's the problems . thanks

[Unregistered]

but it was my idle valve. The AC was using too much power and my idle valve was weak to begin with so the rpms would drop too low and the car would cut off. Got a new idle valve and the problem is gone