W124 220TE 1993 Harsh Gearbox Changes

[Casual Traveller]

I need to replace some vacuum parts, particularly a three port plastic valve (again) in the headlight leveling system.

I think a vacuum fault may be causing the harsh gear changes.

The car has been so good for so long, I have forgotten the Russian website that has all the parts diagrams and part numbers.

Does it still exist?

Any pointers on the harsh gear changes from neutral to drive, neutral to reverse and reluctance to change to fourth without lifting the throttle would be gratefully received.

Regards to all.

 

[star]

I'd start with getting the vacuum system sorted first as it effects the modulating pressure and so gear change.