I have a bad tinting problem on my X5, It is great factory tinting. But at the dealer I think they left a very abrasive sticker with somesort of number on it and left it in the sun. Then peeled it off, not noticing the damage that was inflicted, so now when there is direct sunlight on the tinting, u can read out the numbers, but does nyone have any suggestions? Is there a product that can be used? Or am I just out of luck?