I have a 500E,a 92, 170,000 miles. last year I replaced the a/c compressor and condensor, for about $2,000. Last week, the CC suddenly stopped blowing cold. Went to the tech, who said he couldn't find a leak, refilled the tank, and off I went, until three days later. same thing. Back to the tech. This time he says they have traced the leak to where the evaporator lives. They have referred me out to a local A/C specialist, with the guesstimate that I'm looking at $3000 in parts and labor.
What kind of labor is involved, and whaat parts do I need, besides the evaporator? I believe I've had all hoses replaced within the last two years.

I have spent $17,000 on my car in the last two years, so I am really freaked. I'm tapped out. it may be a hot summer!

Tom