i believe those are drive way convince lights? i am not sure if thats what you call it but its suppose to be for when you unlock or lock the car so you can walk to your door way with lights on. Should last for about 30seconds or a min forgot but its programmable through the dealership. i think when u order a new vehicle its a option that costs $30.. not 100% sure but i think thats what your talking about.

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2005 Black x5 3.0i