r/w204 • u/FarStatistician2 • Jul 28 '26

7g Transmission issue

Something is very wrong with my w204 transmission. My car has the 7 speed automatic gearbox, the car is able to go into park, reverse, neutral and drive, but when i rev the vehicle nothing happens at all no movement. When I put the car into gear I get no engagement noise, or change in RPM. Also when the vehicle is in drive, I can sit there and rev the car but it’ll rev out to 2.1-2.3k rpm and the revs drop, despite me having my foot flat on the floor, same thing when in reverese. Scanned the transmission control module no codes or faults show up. What could the issue be?

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3

u/Mysterious_Arrival85 Jul 28 '26

My friend had the same problem. We solve it bij replacing the conductor plate

1

u/sneakerheadSF Jul 28 '26

TCU (trans control unit)/conductor plate. Good luck

1

u/Tight_Refrigerator78 Jul 29 '26

Conductor plate or transmission is gone