Sookiew222

Hello everyone. Recently picked up a 2015 s550 with 31k miles, Really good condition. Car has been maintained a lot at the dealership. Recently I noticed the car had a slight rough idle. Also has a jolting feeling, not much but noticed it a few times. First dealer didn't notice anything, after some research found out about the LI07.08-P-061035 update. Took it to another dealer and they performed the update. Question, is the update instant or it takes a while of driving to notice it. I notice some different but the rough Idle is there. Should I give it 500 miles? Or should I take it back to mercedes to make sure the update was performed properly. Thank you.