I just brought my 04 325ci to a bmw dealership to replace my passenger fog light b/c some how the bulb exploded inside the lens, there was no damage to the lens at all though. I didn't hit anything b/c i woudl've definately heard it and stopped immediately and looked at it. i didn't even know it was broken till one night i turned them on and realized only one was working. should this be covered under the warranty since it was not due to my driving habits since i obviously did not hit anything. because they charged me $160 to replace it which i was shocked by thinking it was covered under the warranty.