I have been having some issues with the tranny in my 1997 e320 w/ 131K. When cold, it does not want to shift out of 2nd and sometimes shifts hard as well. I have researched prior threads and think this problem may be related to the transmission computer. I checked for fluid contamination and didn't see any. I see that I have the 020 545 88 32 version and there is mention of installing the better 020 545 92 32 version. Can I just plug this in or is there more to it? Will any 020 545 92 32 work?

I know I should get the codes read but that will cost more then a used tranny computer and if the higher number is a better, plug-and-play unit, I feel I have nothing to loose. Can someone that knows more then me let me know their thoughts on this? Thanks

Dave