You can get a shift kit (K1 spring kit) for the W124's tranny, maybe there is also one available for your car? It's basically an upgraded spring set for the 2-3 shift valve in the valve body in the tranny. On the W124, it's not too difficult to replace. Definitely sorted out my 300E's 2-3 flair.

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2006 C180K 112000km
1980 450SLC 123000km
and a Toyota