Created some closeup shots of the valve body after the CLS refused to go into the correct gear. I suspected something wrong with the valve body, but in the end I needed to do a transmission adaptation reset…(which is mandatory after you replace the conductor plate).
As part of the big preventative maintenance, I swapped out the conductor plate for the 5-speed 722.6 automatic torque converter gearbox (which is pretty much bulletproof) and also did a fluid refresh. Its almost impossible to get all the fluid out, that is done better with a flush (done with specialist equipment).
I replaced almost 6 liters, the rest remains in the system off course in the coolers and the rest of the transmission plumbing. Maybe somewhere next year do this again, but also replace all/some solenoids and go to a transmission specialist.
Pro tip: Transmission adaptation reset is mandatory! I used method 2 of the video below
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