Trying to Fix My W124 Windows for Free

In this video, I try to fix the power window issues on my Mercedes W124 without buying new parts. The front passenger window was slow and previously blowing fuses, one rear window switch only worked in one direction, and another rear window was completely dead. I started by checking the switches, fuses, door wiring, and rear door harness to figure out whether the problem was the motor, regulator, switch, or broken wiring inside the door boot. Old Mercedes electrical issues are never simple, but this was a good step-by-step diagnosis. This is not a professional tutorial, just me learning and working through the problem on my own W124. Hopefully it helps someone dealing with similar power window issues. #MercedesW124 #W124 #MercedesDIY