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#1
05-21-2011, 10:44 PM
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What year CCU in 85SD
I replaced the dash, fixed the vacuum pods & leaks. The blower works but no heat, AC compressor or change in where the air blows. There was a beautiful 83SD at the yard & I'm going to see if he'll let me strip it for a decent price. Will the 83SD CCU work in the 85SD?
(Unfortunately the grey seats were gone) The car was obviously garage kept until it got hit & relegated to the yard. What a shame.
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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do. 
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#2
05-22-2011, 01:13 AM
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If the buttons are in a horizontal row it is ACC III and will interchange. ACC II has a vertical column of buttons and the "evil servo." ACC I is manual climate control, rare in USA.
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 "Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970
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#3
05-23-2011, 12:17 AM
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I have a CCU from an 89 126 (forgot which) that has horizontal buttons but doesn't fit. I has 14 pins where the harness connects and my 86 has 12 pins. All of the smaller switches are the same ie sunroof, emergency flashers etc. I hope the yard doesn't crush the 83 before I get back there.
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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.
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#4
05-23-2011, 09:56 AM
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There are two different CCU units with the horizontal buttons. One has a narrow, clear button for the auto fan speed mode, and the other has a button that is the same size and style as the high and low buttons. I don't know if there are any other differences between the units, though.
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1984 300D Euro spec, 5 speed 217,000 miles
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Linear Mode
