Hi I’m new member but not new to Mercedes. We purchased our latest 2017 SLC AMG 43 Black on Black 3 months ago. She drove it to work,parking in sun light for one month. We went on vacation for 2 months. We just returned and razed the garage door and noticed that a section of the grill was fading out. When you look closely at it you can see where the sun could not shine on it that it is still black. And this particular section of the grill is black plastic and not painted black.