I have a 2015 1.8t Fleet edition. The armrest covers are some kinda black cloth. After realizing what caused the marks and discoloring on it. I'm more careful now with it when I clean. If I rub it wrong or something, it leaves a Mark on it which is usually a lighter color than the original one. Has anyone else had this problem before? Is there a salutation for it other than the obvious one of don't do that. Lol.