ramazi86

Hello everyone, i remember in 2015 i rented S class w222 in germani, When I was driving on well-marked roads The active steering assist was activated and the car followed the lanes correctly. now i buy s600 w222 in dubai, the vehicle is from japan, if i activate distronic plus steering assist also green and activated works well, but without distronic activate steering assist not activating in well mark road, someone explain steering assist works with distronic plus, i remember working without this, what you thinks guys about my case?