Benz300 email a friend of mine who fixed the same problem on a '99 SLK230 and '98 CLK320 that I have. You could have gone swimming in the passenger floor on each car. It was a pita, but my friend figured it out on both. His email address is Relux505@gmail.com. His name is Mike. Tell him Dave told you to contact him. Good luck.

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'89 260e (212K Mi.), '92 400e (208K Mi.), '92 400e (not a misprint) (146K Mi.), '95 C220, '81 240D--Sold