Forgot to add, when I step on the gas pedal in park, the pressure rises to ~65psi @ 2000rpm. I'll check the pump/working pressure next, here is a reference I got from all data, I should be getting between 194-223psi


Modulating Pressure 4.0 bar
Working Pressure 14.4 +/- 1 bar

Governor Pressure @ 30 km/h 0.6 bar
@ 90 km/h 2.0 bar

I'll report back with results.

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1987 Mercedes Benz 300D Turbo Black/Black