Mine going back to the dealers to get this sorted next week. Tried to tell me that all cars do this then saw mine and got a shock when I took it down today.
Yup and this is caused by corrosion. I've stripped 3 of these lights now. Corrosion causes the silvering to fail and come off from the metal body. The seals are obviously affixed to the silvering. Water then gets in-between the silvering and the body.