Mechanics

MERCEDES BENZ 300SD DOOR PROBLEM

1993 Mercedes Benz 300sd • 187,000 miles

Hi my name is Bob
The vacuum door and trunk locks quit working 3 days ago. Everything functions as before, ie I can roll the windows up or down with the key fob or by using the key directly in the lock. The IR. Lights work, green when unlocking, yellow when locking. FYI. When locking the doors using either the key in the lock or by using the key fob. The ir. Lights in the door will blink for about 30 seconds. The trunk lock works the same way. It appears there is no vacuum going to the locking system. I checked for vacuum under the hood and it is excellent. Could a vacuum line come un-done somwhere? Where does the vacuum lines run to feed the locking system.

Thanks Bob G.


















































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October 26, 2012.




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