Hello i need help please. my 2000 e 320 all windows goes up and down by itself in extream cold weather breaking the plastic windows pieces, what can this be. i appreciate your help thank you.

I don't have experience with this but have a W210 so did some digging...

The most common denominator seems to be dampness in the lower control panel (LCP) which i believe is the panel that holds the window switches...spilled anything recently in that area?

Try pulling fuse #3, it should be a 7.5 amp and the problem should stop.

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"Rudeness is a weak man's imitation of strength" - Eric Hoffer

I've fixed that very problem for a few customers years ago. Both times it was moisture in the PSP pump, but I can't recall if they were 210s or 124s.