Ok I tried changing out the icecube relays and still the same thing. Looks like I lost the push button control unit. I took the one out of the wreck I have out back and it's shot too. One of the relay coils looks like it wanted to burn through the circut board. I haven't taken one out of the running care yet.

Prior simtoms:
Center vent quit working
Heater fan would not turn on
Sometimes the high speed fan only switch would not come on.

In a nutshell the climate contols in these cars SUCK!!!!

If anyone has anyother ideas chime in.

Anyone rebuild these units?

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1984 280SEL, 62,000 miles
Euro model in the USA
1983 300D (Totaled out 10/2004)
New Factory Mint Green paint
Palomino int
1982 240D (Steak dinner for two)