[s-cars] Yet another problem - AC compressor noise

[Ivan Demkovitch]

Soon, after I fix everything we can compile a book about UrS4 restoration :)

As everything nice and quiet now (replaced fan clutch, tensioner bearing, TB 
tensioner and Water Pump ) - I can hear some other noises :-)

AC compressor makes noises on lower RPM's. I was thinking P/S pump but now 
I'm sure thats A/C compressor. When turning A/C off - car smooth as silk and 
I love it. Turning A/C on and I can hear groaning. It comes on and goes 
off... Mostly on low RPM's coming to stops.

So.. The question to the list is what do I need to replace now??

Thanks,
Ivan
93' S4

P.S. AC blows cold and works fine..