Here are a couple of threads for reading material.

I haven't actually done these procedures, so I can't say what actually works, but I'd seen them and read them, prior to working through the shift issues on my 300SD.

http://www.peachparts.com/shopforum/showthread.php?t=142395
http://www.peachparts.com/shopforum/showthread.php?t=158216

__________________
-Josh
Testing the cheap Mercedes axiom, one bolt at a time...