I have already performed this test procedure. Everything is tight no leaks were found. Something electrical is telling the pump to turn on and the locks to lock. is there a delay timer on the automatic lock mechanism (module)?
The problem is too consistent to be a short.

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1987 300D 180k
1985 300SD 330k Helga
1992 300D Lola 269k- Sold
1986 325 coupe Bessie >300k Original engine(ODO Broke) sold
2006 2500HD Druamax Linda- Tows boat and looks pretty in garage thats about it