Welcome to the forum,

Their is a active thread with similar problems, but do as Fred says..

http://www.peachparts.com/shopforum/tech-help/357331-1998-e320-intermittent-no-drive-reverse-pulled-codes.html

Here is one a week a go...

Got Transmission issues - P0715 Code - Questions - Mercedes-Benz Forum

Hope it helps,

Martin