I think I posted something on the DIY forum. For my 1991 300d, it was a breeze to repair. The problem was that rust gets on the shaft from the former owners never filling it up all the way, or in my case, the car sat for months on end without much fuel in it, and so it rusted.

Take it out, hit it with a dremel or Rotozip, with a round sanding bit, to sand it down where needed, put it back. Read on how to do it first, if you don't see anything, e-mail me directly and I'll send info.

jeff
1991 300d, 99k