I have a 94 s500. Today, I rolled the front driver's side window down just like normal, but when i rolled it up, when the window was all the way up and I pushed the up button i heard a "thud thud thud" like sound; it was as if the motor was still trying to push the window up, even though it was all the way up. Then a little while later the window would no longer go to the highest position, it was not sealed, I could hear the wind whistling through. I also noticed the "automatic" window function no longer works on that specific window. I cannot do a one touch up or down. What gives? Is the window just lose in the channel?

I'm leaving for a long distance trip and cannot drive with that annoying whistle. Input greatly appreciated, as always.