One problem related to wiper has been reported for the 2018 Mercedes Benz E300. The most recently reported issues are listed below.
We leased a 2018 mercedes E300 exactly one month ago. For our test drive we took a short trip taking all right turns. Since we have had the car my wife has had serious visibility problems looking to the left, especially at 4 way stops. She has had 2 very close incidents at these stops, the latest near collision just yesterday. She is short (5 ft. ) and the seat does not raise high enough. As a result, when she gazes to the left there is a large blind spot created by the side view mirror. The side view mirrors in this new model are quite large due to the increased technology and they are set very high. I discussed this with our salesman today. His recommendation was that my wife press the button on the door to fold in the mirror each time she comes to a stop sign. Not very practical I think. They did offer to switch us to a small SUV for an absurdly high penalty to break our current lease. I also contacted Mercedes Benz customer service and they could offer no resolution, stating that the E300 has a "universal design" to fit all driver sizes.