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Old 04-10-2002, 12:30 PM
Kelly Pepper
Posts: n/a
W126 Wiper Issue


On my 300SE, only my "large" wiper is swiping and the other one only works occasionally...most of the time it stays "parked".

Tell me this is an easy fix?!
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Old 04-10-2002, 01:53 PM
Join Date: Jul 2001
Location: Old Lyme, Connecticut
Posts: 3,596
Kelly Pepper,

On older cars the wipers were run by a mechanical arrangement under and in front of the dash, and when one wiper went limp, it meant you had to reach around in there and pop the wiper arm male connection back into the drive mechanism bushing (a rubber donut affair). Once you did it the first time the next time was easier. Mine usually only popped out if there was heavy snow or ice on the windshield adding an unusual load to the system.

On the W126 model I owned, this was sadly changed to a modular unit in the area of the base of the windshield. The design was not as robust, and when it let go of one of the wiper arms, it usually meant the bushing, now made of plastic and held in place by a large sheetmetal stamping, broke, and there is no provision for replacing just the bushing. I tried several solutions that did not work before I gave in to the new mentality and bought a new assembly, which included the motor. It cost me several hundred dollars to have the whole unit it replaced.

It is possible yours is not really that bad if it sometimes works, but I would not hold much hope. Good luck, Jim
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)
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Old 04-10-2002, 02:09 PM
yer-ol-pal's Avatar
Registered User
Join Date: Mar 2002
Location: Ashland Kentucky
Posts: 101
My 300SD had this afliction before I bought it from my friend. He had a very simple fix. Take the arm on the passanger side off! Really doesnt do much and it looks way cool to have just the one big wiper!
87 300SDL 278,000mi - RIP
82 300SD 260,000mi - RIP
84 300D 178,000mi
90 420SEL 178,000 - Daily Driver

This message was generated using 100% recycled electrons.
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Old 04-10-2002, 02:19 PM
Kelly Pepper
Posts: n/a

MMMmmm....I'm thinking............No!

I'm not at all interested in making my MB look any different then it was intended to look. I like the wiper design of this era...that's one reason why I drive the 300SE (w126) VS 300E (or 300D for that matter)

I would like to buy a 560SEC or 560SL if I could find a nice one in Garnet (color # 512). That's the only color I would ever consider.
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Old 04-10-2002, 05:13 PM
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
There actually is a very quick permanent fix for this if you have the skills.

Place the link back over the metal ball, Obtain a large metal washer with an ID of about 1/4 inch less than the flat, exposed upper surface of the metal ball (seems like they meant for this repair as the ball has a flat upper surface just designed for this technique. Place the washer on the ball. This traps the linkage. You must now TIG weld or other fine arc weld the inner ID of the washer to the top of the ball. A couple spots on either side work well. Done quickly (with the TIG) and with a wet rag around the link the remains of the old captive bushing will still be there to keep the linkage from klunking on rebound. The results can't break if done properly and the only place it can go is to break up the rest of the bushing and klunk with the play.

We have done a number of them on the early cars, takes about an hour, most of which is set-up time.
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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Old 09-10-2002, 10:31 PM
Kelly Pepper
Posts: n/a
Who manufactures the MB wiper motors? Is it Valeo?
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