1994 E320
 

After manually locking my driver side door, the locks come right back up. Any assistance would be much appreciated, I am afraid to leave it anywhere

Thanks

RE: 1994 E320
 

Seems like the master vacuum control box is acting up. If you exit the car from the drivers side without locking it and enter the passenger front door try depressing the drivers lock manually. If it remains down, continue to manually depress the locks on the back doors and then manually lock the passenger front door and close it. If all remain locked then go over to the drivers door and unlock it and see if the other doors unlock. If not then more than likely you have a leak in the vacuum system or the master box is bad.

RE: 1994 E320
 

Thanks a lot, I will attempt that today! It seems to do it 3 out of 10 times