Wheel Well Liner
As far as I know, it's some sort of felt. I spray with semi hard pressure from garden hose. From time to time, I use a soft bristle brush. Its seems to be very similar to the product they used in both my 2014 BMW's. I've never had an issue with them.Does anyone know what material the wheel well liner is? It feels like some sort of felt material. I would like to know so, I can clean and protect it properly.