Apologies if this issue's been addressed already but I can't find the answer. My 2003 CLK 500 passenger window and seat stopped working. Been resetting the power window and seat by pulling fuse #22. Now that I have changed the battery, its still doing the same thing especially on hot days, 95F or hotter !! Any ideas what else could be causing this besides voltage problem?? Help please

 

I would guess that the door controller is failing. Before spending any money on diagnostic or replacement, I'd pull the panel and check the wiring harness.