Hello! Unfortunately, the search function did not really help me even today. I describe my problem here in this new thread: With my car (BMW 116i, year 12/2009, black) the interior cladding of the driver and. passenger doors through numerous straps (i.e. abrasion and dirt of shoe soles) is quite disfigured. I try to always watch out when getting in and out, but sometimes the shoe still stripes the door inside. And: The color of my inner cladding is black (matted), the material is plastic with a rough/structured surfaces. Unfortunately, I can’t get rid of these stupid straps. I already tried: – plastic cleaning cloths from Poliboy – pure alcohol (98%) ….unfortunately without success I have heard/read already the following means. What (also other products) would you recommend to me? – Balistol – dirt eraser (in black plastic probably not so great…) – silicone spray (in case of plastic too) No good idea?