That transmission DOESN'T have a modulator! Modulator pressure is PRE-SET by spring pressure. Should be 2.8 BAR!

Adjustment for shift is done by changing the length of the control pressure rod from the trans to the accelerator bellcrank. Making the rod shorter will stiffen the shift.

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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