1of427

This week I drove a 1991 300SE and then a 1990 300SEL. Both of them had about 100K miles. It seemed to me the transmissions shifted rather harsh, but I have had the impression that is rather normal for a Mercedes. Then today I drove a 1990 420SEL with 134K miles. It shifted noticeably smoother. This makes me think the harder shifting ones were not normal.

Is the hard shifting a known problem? If so, what does it take to resolve the problem?

-Jim