I recently purchased a 1989 190E and noticed that both the right front and left rear electric windows do not work. I see by the fuse panel, that the "same" fuse controls the right front/left rear windows, while another fuse controls the left front/right rear.
I checked the correct fuse holder and the fuse looks good. So, what is the answer or next avenue to pursue? Marty.

Is there power AT the fuse (both ends)? You may simply have to trace the wiring - following the hot lead - and keep "bracketing" the problem until you find the point where the wire goes dead.

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95 E320 Cabriolet, 159K