The contact owns a 2009 Mercedes-Benz E350. The contact stated while driving 30 MPH, the contact felt heat coming from the rear of the front driver seat and noticed smoke coming from the rear of the seat, causing the back of the driverâs seat to catch on fire. The contact was to pull over and noticed that the back of his shirt had caught on fire as well, the contact was not injured. The contact was able to stop the fire by pouring water on the seat. No police report was filed. The vehicle was taken to the dealer, but it was not diagnosed, but the front driver seat was replaced, but the failure reoccurred. The manufacturer was contacted, and they agreed to replace the front seat. The failure mileage was 38,000.