Larry,

In general I agree if it is working - let it go. It seems there is a typical life expectancy of a compressor even in a good A/C system. In several of my past vehicles, they seem to go out in the 120,000- 170,000 mile range based on my climate and usage patterns. I beleive that the failures were on systems that still had full charges in them, not due to leakage. Obviously the leaks must be fixed for any system viability.

Seeing that many people in this group tend to keep their cars much longer than the typical domestic vehicle, I am wondering if a dis-assemble, flush, add fresh oil, o-rings, a dryer and refrigerant would significantly add any to the lifespan of a compressor? Or do they just wear out? I'm sure they do just as the diesels themselves will eventually. But it would be nice to invest $100 in preventative maintenance at 125,000 miles and get 250-300,000 miles out of one. Anyone have a record lifespan of a compressor?

Thanks again to all for sharing your expertise, the people here have been helpful, friendly and very willing to share their time. It is very appreciated.

Chuck