Thanks in advance for your valuable inputs...

I bought this E420 a few months back and have been slowly putting it back together. Yesterday I began tackling the climate control which has not worked at all. I removed the control unit and found a two square inch portion of the circuit board completely burned. I happened to have a spare unit but before installing it, I read that if the Monovalve if faulty that the over heating in that unit could cause the same circuit burn to be repeated.

This car runs, stops and handles great! And there is no visible cracking on the wiring harness...but it does have some electrical gremlins, for example fuse "C" which controls the power antenna, door lights, locking system and a few other circuits blows any fuse I try to put in there. I disconnected everything that is tied in to that fuse and it still blew a new fuse the instant I connected it.

So now that I found the burned circuit board and knowing that '95s where a bit "electrically challenged" and before I need psychiatric help...where should I begin?

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I have never met a man so ignorant that I couldn't learn something from him. -Galileo Galilei, physicist and astronomer (1564-1642)