Check the X5 forum; there are numerous articles on this but basically IF you have a pre 2003 model you can open and bake them is what I've heard. Otherwise you have to find a set to replace them with pre-2003 or buy a set with angel eyes already done and just retrofit them.

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Rob C-G
'08 BMW M3 coupe Graphite Gray-on order (Mine)
'05 911 Carrera 997 Artic Silver (Mine)
'07 Mercedes CLS550 Iridium Gray (Herz)
'03 BMW X5 4.4 SAV Sapphire Black Metallic (Mine)


5 y.o and 7 y/o kidz (ourz)
Boxer puppies (2) (?????) LOL