check to see if the A/C lines are leaking (clean them and observe ). Since the manifold threads on to the A/C compressor in the lower front area of the enigne compartment this could be the culprit.

This also means that your pressure cut-off switch (located behind the drivers headligt) is faulty

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1982 300SD (214 k, excellent shape) kidmobile running mostly biodiesel, gets 31 mpg hwy with 2.82 rear from a euro 500SEL



1976 115 body 240D 4-speed (traded for Jeep parts) - Engine lives on in my CJ7