OK, this was where I was heading...I was stuck on the fact that the drivers side switch - when installed on the passenger side - also did NOT operate the motor. But, if the switches are NOT interchangeable, then that could explain my problem (and I was wondering about the interchangeability due to the middle button connection on the driver's side switch that locks out the rear windows).

ryan

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RG Newell

1984 300D
1972 250
1986 560SL
1991 300CE

That's why I recommended that you jumper the connector terminals. But the terminal numbers that I provided might not be right for an '84. The basic idea can be garnished from the provided schematic, even if the terminal numbers and wire colors are different.

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When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.