the car 1990 300se.
the transmission is 722.3

the passenger side of the transmission is leaking.i know wherest coming from.the problem is i dont know the part name.can anyone pls.help me to identify it and how to fix it.i attached the pic where the leak is.thanks

Attached Thumbnails

 

That is the pin that holds the control pressure fulcrum.
The o-ring on that pin isn't there any more, since it is leaking.
Requires removal of the valve body.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

MBDOC "your the man"!!! Always on point....

thanks MBDOC.Can u pls. briefly tell me the process and any precaution for the valve body removal and replacement.like someting to align or adjust.would i change any setting if i remove the valve?balls/marble.

No issues with valve body removal. Just don't remove the 2 screws on the inner portion once removed.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator