Hello Everyone, this is my first post as a new member of your group. I recently bought a 2012 S550 with 42,000 and some issues, thank god she is CPO'd. I have only owned her for less than a year and already have MY second torque converter put in (this will be the third in the life of the car!) Is there something wrong with this transmission or the TC?? I know that year they switched motors which added another 100lbs of torque BUT I'm not burning rubber or hot rodding, I'm in an S-Class so it's slow and steady until I get on the expressway. I have warranty until November of 2016 BUT I think I'm gonna trade her in early, does anyone else agree with my future trade?? Thank you for your time everyone.