Been having A/C gremlins in my 85 300CD the clutch would engage then quit then engage... sometimes not... When it would engage, the system would work and blow cold, other times.. well I was getting hot as hell.

Opened up this recently discovered Kilma (which means "kill ma" AC if I'm broken) and sure enough, one of the brass leads was burned right in half... some wire and solder and she's all better. Turned on the system, it ran for 30 seconds, and bang! the belt broke. (new belt only 2 weeks old). So I put a new one on this morning and noticed that the pulleys where not aligning right. Not sure how I missed that the first time putting on the belt, but I had done all 4 and it was getting late...

A little more research and it looks like some PO put the washers in the wrong place in the bottom bolt. moved it and every things straight as an arrow now and working.

Now I just need to clean the condenser so air will blow stronger and I should be all set.