Mercedes Benz repair: air conditioning leak 1986 420 SEL, 420sel, w126

Question
I have a 1986 420 sel, with 197,000 mi in tulsa, oklahoma. It is so hot around here. I would like to get the ac WORKING.I resently removed the compressor and had it pressure tested, and the high side hose replaced. everything else seemed fine, but found some oil inside the car dripping down from around the condensor. I would like to replace it myself but don't know if this is a good idea. It does'nt seem like it will be easy to access.Bryan

Answer
You have a W126 S-Class Sedan

Chassis W126.035
Engine M116.965 V8
Model 420SEL
Years 1986-91
Horse Power 201
Weight 3850

Answer:
Oil dripping inside the car = evaporator core leaking.

You are correct, this is a very hard job.

This link will help you decide if you want to DIY.

Climate Control:
http://www.mercedesshop.com/shopforum/showthread.php?t=142408