a/c on 1980 300SD - Mercedes-Benz Forum

 
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post #1 of 1 (permalink) Old 06-29-2005, 07:44 PM Thread Starter
BenzWorld Newbie
 
Date registered: Feb 2005
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a/c on 1980 300SD

Only switches that works 1980 300SD) are the defrost and off button. Compressor goes on and works on defrost for first few minutes then it gets really warm like it's supposed to. is this likely a vacuum problem (center flaps never open) or an electrical problem? Is it the climate control module, amplifier, or merely a switch? Or maybe all of it. A trouble-shooting flowchart (without having to use custom testing equipment) would be very helpful in trying to figure this one out. Any suggestions?

1979 300CD
1979 300SD
1980 300SD
1982 380SL
1997 C220
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