I have a 1982 300SD and the driver's side wiper arm hits the A pillar. I assume this is not supposed to happen? My guess it that someone removed them at one point and reinstalled them incorrectly?

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1982 300SD
1967 250S
...what was I thinking......

anybody....Beuller.....Beuller....?

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1982 300SD
1967 250S
...what was I thinking......

Sounds like you have it figured out. Where does it come to rest? Is there a couple of degrees of rotation left to lower it? If so, take the wiper arm off and reinstall it shifted slightly in the direction needed to stop the wiper before it hits the A pillar. Jim

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Own:
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

Owned:
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)

Or it could be as simple as the wrong size blade.

It rotates (as viewed by the driver) about and inch over the pillar (probably 2 degrees). I didn't know if this was common or not.

I doubt it's the wrong blade because I bought the blade/holder from Fastlane.

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1982 300SD
1967 250S
...what was I thinking......

With the chance of the wrong blade eliminated, then it leads to the orientation of the wiper arm placed wrongly on the wiper motor hub.

The arm and blade should sit low on the passenger side. Make sure the lower blade is down all the way and then adjust the upper arm. Raise the hood to the vertical position to get better access.

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Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.

Did the old blade hit the pillar?

If I remember correctly there was an eccentric nut that adjusted the wiper arm throw in about the center of the wiper arm assembly on my 81 300sd. Remove the grilled vent cover to get at the area. Hope this helps.
Noodles