Sorry to read where this is at- your frustrations and just letting it go.

Maybe try and find a fellow enthusiast in your area who would hook it up and run some diagnostics? Where are you?

Keep us posted- Im sure if bawarca was local he'd have you all diagnosed pretty easily!

One out there question...does your car have an electric water pump? A reported mode of failure is crazy fan speeds..USUALLY followed by pump failure. But not always immediate. Does your temp gauge look at all off?

Nevermind...I see you've started multiple threads...
http://www.xoutpost.com/bmw-sav-foru...when-ac-2.html