2005 C230 Coupe Air rattling problem
So the problem is, when I turn my air on (hot or cold, doesnt matter) and its on setting "3" right on the middle, its making a little rattling/whistling noise. SO ANNOYING! I am sure its not a big problem, because it goes away when you crank the air flow up to 6 (all the way) or down to 1. Please help with ideas/ pictures or a fix for this problem. I really have no clue!


