2018 E400 transmission service.




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Remove the torque converter screw, drain the TC fully.
Remove the transmission oil pan.
Replace the transmission oil pan with a new one.
Add 10 QTS of transmission fluid.
Get the car up to temp (30 deg C i believe)
Bleed the valves
Turn key on transmission pan to position 3 I believe to set correct oil level.
You do not want to flush the transmission fluid because you can cause damage to the valves and the internal components of the transmission by pushing dirty debris everywhere. These transmissions are very tightly build and huge tolerances/clearances aren't a thing on the 9 Speed tranmissions.








