My pump seems to be working fine. When I got the car it had a bad passenger door actuator and the pump would run for 10 seconds or so, then time out and would need to be reset by unplugging the battery. Now that I have fixed the vacuum system it only runs for 2 seconds then stops when all the doors are locked/unlocked.

I do recall using the passenger lock around the same time that the problem occurred this last time, but I'm not sure if it was before or after the problem... I'll try to pay attention and see if the next time it happens I have used the passenger lock recently.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine