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Still lost in door locks.....
Quote:
Originally Posted by vtmbz
I find it interesting that they failed one at a time. I think its a vacuum issue of some kind. The door farthest from the rear vaccum pump failed first, then the one next farthest (drivers rear), then passenger front, leaving only the one closest to the pump still working. It doesnt make a lot of sense, since default position is unlocked/no vacuum. But I have a hard time believing that three door latches all failed mechanically, one at a time.
Can a slow vacuum leak contribute to this problem. Probably not. But could the pump be working too well? So much vacuum the actuators cant hold it back?
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I had/have exactly the same thought process.....but I have ruled out the Vacuum Issue......I think..!!!!
I have swapped pumps with the one from the "parts car".....both are working and both have the same results....in fact, I went to the vacuum pump first, and went thru the "go-no go" troubleshooting procedure as set forth in the W201 MB CD......all voltages are within tolerance.....did not rig the "MityVac" into the system because all doors actuate with an obvious click....so I "assume" that there is plenty of Vacuum/pressure.....
Note: I thought that the "failed" position was whatever the last command from the drivers door was.....and then "if locked" you need a key......
Thanx,
SB
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Diesels:
'85 300D, "Max, Blue Benz", 155K, 27.0 MPG
'84 190D 2.2, "Eva, Brown Benz", 142K, 40.2 MPG
'77 240D (parts car)
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