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  #1  
Old 06-19-2014, 03:47 PM
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W140 Wiper Malfunction

Passenger wiper will not move on its own. In fact, you can free hand it all over the windshield with no resistance. Drivers side comes up about 10 inches and stops/jams. Does this sound like the typical articulating gear issue, or because it's jamming and the passenger side wont work, a general linkage issue.

The car is 2 hours away, so just pondering since I'm not there.

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  #2  
Old 06-20-2014, 10:35 PM
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OK, I got the whole assembly out, and the problem was indeed the linkage to the passenger side. The rod that attaches to the passenger wiper tower had fallen off. In the poor lighting of where I removed it, I took for granted there was a circle-clip that held the rod on but upon closer inspection, it looks like it may just be a friction fit on the bushing. There's no groove for any clips. Any ideas? Does it seem possible just that bushing holds the linkage rod on? If so, any ideas where to buy that rubber bushing?

As always, thanks in advance!
Attached Thumbnails
W140 Wiper Malfunction-20140620_222630.jpg   W140 Wiper Malfunction-20140620_215108.jpg   W140 Wiper Malfunction-20140620_222649.jpg   W140 Wiper Malfunction-20140620_222709.jpg  
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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D
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  #3  
Old 06-20-2014, 10:38 PM
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WOW, can this be correct?

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  #4  
Old 06-21-2014, 09:59 AM
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I'm considering drilling a hole through the ball end straight through the top to the bottom, and using a large fender washer on top with a locknut on the bottom. That way the fender washer will prevent the linkage arm from falling off. Still cant believe there wasn't a clip or any kind.
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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D
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  #5  
Old 06-21-2014, 03:06 PM
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I sure hope there was a missing decimal point in there somewhere!!!
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  #6  
Old 06-21-2014, 06:17 PM
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Tell me about it. Haha. Well, so far, the steel on the ball end has proven too hard for me to start any drill bits I have into it. And with the chrome coating, they are really just walking badly. I'm going to try filing off the coating, and using a center punch to see if I can get a bit started.
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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D
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  #7  
Old 06-21-2014, 06:21 PM
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Going to get a cobalt bit also to cut through the harden steel better.
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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D
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  #8  
Old 06-21-2014, 10:28 PM
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Well, I cant get through the steel. Honestly have never seen anything like it.

So, going to try and just put a couple mig spots in the center of the washer to secure it in place, and put it all back together, and send the wife with it for state inspection so it can pass.
Attached Thumbnails
W140 Wiper Malfunction-20140621_213317.jpg   W140 Wiper Malfunction-20140621_213323.jpg  
__________________
1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D
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  #9  
Old 06-22-2014, 04:32 PM
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The center punch that the crazy hardened steel flattened, and the welded washer fix completed.
Attached Thumbnails
W140 Wiper Malfunction-20140622_134321.jpg   W140 Wiper Malfunction-20140622_140535.jpg  
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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D
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  #10  
Old 06-22-2014, 04:38 PM
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Nothing to do now but sit back and wait for the rain. Haha.

Hope all of this can help someone in the future.

Come on Rain.... I Dare Ya!!
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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D
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  #11  
Old 06-23-2014, 10:56 AM
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Hope you didn't melt the plastic bushing when you welded it back together.
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  #12  
Old 06-23-2014, 11:23 AM
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Its similar on the W126...to drill it I used a dremel cutter to make a nick in the metal where a bit could get started....used tiny bit to make a small hole, then larger bits...using air tool oil dripped on it the whole time....then I drove a bolt in through it...so far it has lasted 2+ years without breaking.

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