I have the same problem with my 1998 C280 and have not found a deffinate sollution as of yet. I have though ordered the part which I think is the problem. Its not actually the cable but the linkage that goes into the tranny that the cable attaches to. The part is rather cheap like $18-$20 I believe. I can get the part number and diagram if you still need it. Just let me know if I can help you further or if you have found a solution that has fixed your problem.

Regards, Christopher

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'98 C280 White on Tan

-=Santa Bring me a C43=-