Originally Posted by keeedle
As far as I know, there is a flaw in the 08-10 E90 lci tail lights LEDs which makes them turn dim or go out after some time.
I heard that lights produced after 2010 solved the problem.
I believe there is a service bulletin addressing this issue thus dealer replacing the light for free if your car is under warranty, but don't quote me on that lol
yes, there is a service bulletin for it. The dimming issue actually happened to me a few months ago and the dealer had replaced the whole housing for me on both taillights. BUT if OP is going in for the warped light tube or whatever, not sure what the dealer will do since that isnt part of the service bulletin that I think you are talking about.