I have a 2007 W221 S550 it drives great, however on occasion when I come to a full stop at a light, when I pull away it feels like i'm in top gear, the transmission did not change down, I stop the car, put it into park, turn off ignition, then immediately turn on again and all is fine until the next time which could be weeks or 100's of miles . Sometimes when I pull away it stays in low, I do the same procedure and all is well again. Any ideas would be appreciated.

 

Thread revival!

I’m experiencing the same issue, wondering if you found out the cause & repair.

Thanks!