Keep us posted on your findings
My tranny has persistent slipping, and at the prices Germantransmissions has on theit site, I could pull my tranny, make the 18 hour drive and swap for less than most places want for a rebuild. I can't say that I'll need to, but having a good resource would be nice.
'02 C230 Kompressor
'89 560 SEL "Frau BlueCar" (retired April 2004)