I read a similar post for a newer model so I thought I would ask about my problem. I have a 1985 300TD. For probably the last two years my AC compressor has cycled on and off more than it should. Now it doesn't come on at all. I replaced the climate control unit some 7 years ago. The blower fan does run. Is there a relay I can check and if so where is it ? I have the CD manual but I'm not sure what to do .

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David McDonald
1981 240D
1985 300D (wrecked)
1985 300TD 365,000 miles
1969 Mustang Fastback