I just purchased a 1994 940 with 77,000 miles on it . It seems to have been welll maintained , but a couple of time I had trouble starting . A small motor sound would occur and I was unable t start car will that motor was running. I EVEN PULLED THE KEY FROM IGNITION AND SMALL MOTOR SOULD WAS STILL APPARENT. After about 3 minutes , the sould would stop and the car would stop... IT IS NOT LIKE A FLAT SPOT ON STARTER SOUND but I am just not sure what it could be....Plus if it would do it all the time I could pinpoint it... Thanks in advance