I just noticed that my lenses are turning colors... I usually drive with them on all the time, headlights and fogs. My X has just over 7k miles... anyone else having this problem? I will be visiting the dealer for them to look at them.

I'll be keeping an eye on it. I too drive with the fog lights on and have 3500 miles on it.

I've got about 7500 miles on, drive w/ the fogs on at night, and my lenses are still clear...no discoloration.

I've got 11k on mine and haven't noticed this but then again I really haven't looked real hard. I'll check it out on lunch today.

Sorry to alarm you guys. I washed the X and discovered that the brown burnt stain was from the clear bra material that was also applied to the fogs. It peeled right off, and with a little bit of Goo-b-gone (you know what I mean) it cleaned up fine.

I am going to leave the other one on and take it back to the guys that did my front bumper, lower doors and headlights and see what they have to say about that.

Where did you get the clear bra material applied? How much?

It is not wise to drive with the fogs on when you have clear bra material applied, especially in city, since there is less cooling effect. I was advised of that when my wife's clear bra was applied. The installer said they might turn a little brown or at least discolor. Also, it's just plain annoying to other drivers.