We are back again, working on a heavily modified BMW F80 M3 interior. In this video, we discuss how to approach door panel cleaning. Door panels are one part of the interior that gets heavy use and picks up a decent amount of grime along the way. We talk about how to address different soil levels with a variety of simple and effective tools. With a few quality products, you can make a massive improvement to your door panel materials as well as any part of your interior...