Well I had my VW mechanic tell me something interesting.

For the longest time I thought I had no freon in my AC system.  However,   
whenever I turned the AC, the compressor would kick in but no cold air.   
 My mechanic tells me that if I had no freon, my compressor would not   
kick in and that there might be something else wrong with my compressor.

Can anyone shed some light?

Thanks,
Nate El Great
85 GL-Blue Whale-160K