[s-cars] Power Lock Vacuum Motor running on

[Brent Henry]

I have a friend with a 1995 A6Q 2.8, he is experiencing a problem with his power lock vacuum motor running on after he unlocks his doors.  It seems to run on for about a minute or so, then it shuts off by itself.  Not until the motor shuts off, can he lock the doors - obviously the motor is continuously applying pressure to open the door locks.  My guess is that there is a leak somewhere or the shutoff mechanism (not sure how that works) is not working correctly.

Any ideas?
Brent Henry
'92 urS4