BenzWorld Junior Member
Date registered: Oct 2010
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1985 300DT: 2 issues - vacuum + windows
I have a 1985 300DT that I've been getting back into daily running shape after it had been sitting for 4 or 5 years.
Around 170k miles.
I don't know if it is a California version or not, and I'm not sure how I can find this out.
1. Vacuum leak(s)
The car was shifting terribly, and would not shut off when the ignition was turned off, key removed.
After doing some reading I did a little experimenting and now know that if I keep the doors locked while driving it shifts much better (still pretty heavy from 1-2, but pretty smooth from 2-3), and the engine shuts down with the key as long as the doors remain locked. It also seems to brake much better, though I could be imagining that, but still seems to be lacking in pick-up power when accelerating.
I know this should be telling me something fairly important, is it that the leak in the system is somewhere in the locking?
I've also been having a tough time finding a diagram for the vacuum system that matches what is under the hood, or that I can decipher. Any ideas/ help? I've done a lot of searching of forums both here and otherwise, and got some resolution, but I'm not sure where I should go from this point.
2. Power Windows
All four windows stopped working at the same time, they are all currently in the down position and won't roll up.
The fact that all four stopped working at the same time leads me to believe that there is some common switch that went bad somewhere, but I can't seem to find it. Fuses were replaced and made no difference.
Any input would be awesome.