Hi Guys,
1981 300SD. When wipers are on intermittent, they work fine for about 5 minutes, then start "parking" in mid stroke i.e. they do not return to the retracted position. Is this likely a relay problem, and if so where is the relay and what is the part number. I know it's minor, but it drives me nuts. The wipers work fine on both low and high otherwise. Thanks in advance for your input.

CW

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CW

1991 300D 2.5 Turbo-199,000 mi.
1981 300 SD-79,000 mi.

Pull all the fuses one at a time and clean the ends with a scotchbite pad. Stick 'em back in an rotate a few times to clean up the holder contacts.

A light misting of WD40 will help prevent this intermittant contact that you are most likely experiencing.

I had this very same problem with my W126 then it started poping fuses
The linkage had worn a spot in the wire

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On the hunt...
1985 300D----Sold
1985 300TD---Sold
1983 300SD---Sold