My 2013 C63 has he driver package with lane assist etc. where it does a slight vibrating through system if you drift between lanes on motorway without indicating, i have driven cars with lane assist before and thats all fine and as to be expected and good..... However.... i still get the lane assist type vibrations through the steering wheel when driving around town and cornering not even on a motorway. Its very strange. Its a bit like the vibrating you get with lane assist is coming thro wheels into the steering wheel. I've noticed this is mainly when accelerating - so if you are going quick and corner without foot on pedal its fine, as soon as you put foot on pedal for some power it vibrates - not in a balancing way, feels just like a harsher lane assist!! Bit like driving on ice kind of feeling!! I have turned off lane assist altogether, changed tyres from 40 to 36psi but still the same. Would be delighted to get rid of that if possible???