Quote:
Originally Posted by dkl
Not all of them have the stamp. It's very difficult to identify without actually turning on the light on facelift models as even halogens have projectors.
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Based on the Xoutpost options list, at the bottom it has 2001-2003 xenon, 04-06 adaptive bi. it states that for 04-06, the lense must state you have xenons, if not, they are halogen: (bottom of link)
http://www.xoutpost.com/articles/x5/general-information/31660-how-tell-options-you-have-your-x5-all-e53-years.html
My mother has an 04 without and I have an 06 with xenon; I have the stamping, she doesn't.
Do you have a picture of an 04+ with xenons without the stamping of adaptive? I would be very surprised if BMW added the complexity of two different adaptive bi-xenon housings, one with and one without stamping.