Teepounds

I did a ISM replacement on my car today. It has been roughshifting into parkmode for a while now. The technician said the ISM should be changed and we did that today. But now computer no longer reads the ISM as defective. I thought the problem has finally gone away until car starts shifting into Parkmode again. The diagnostic kit doesnt read any problem wrong with the car. What could still be causing the transmission problem. Is it possible i need a new gear system ?

cadetdrivr

Seems like konigstiger provided a strong suggestion in your other thread. Did you ever verify your situation?

https://mbworld.org/forums/e-class-w...ml#post6661523

Teepounds

Yes i did everything he said apart from replacing the EIS.