Not to steal the thread since its all relevant info. The only issue i have with my ACC II system is, no heat, except for on defrost. If i flip the ac compressor switch off, the blower shuts off as well, that didn't used to happen.... Does anyone have any idea which circuit might have the vacuum leak from hearing my symptom?

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg