Thanks, Kestas.

One more thing - is there any way I can tell myself if the compressor is seized up (its a 87 190E 2.3). Just want to make sure, while I think about its future. After 15 years, the engine is fine, but many other things have given up, like sunroof, some trim pieces, and now A/C. I think I am finally in the "drive it to death mode"!