OEM bmw LEDs.... No
DRL...through coding, no... If you wana get down and dirty, yes (
DIY: Wiring your Angel Eyes as DRL's. - The Unofficial BMW M5 Messageboard (m5board.com)) You'll probably still need to have someone code the error code off. Keep in mind though this was done on an E39. (I havent tried it though)
Good aftermarkets:
Umnitza ICE V5, why?
No error codes, plug-n-play, fairly priced, and decent looking. Thats why i got myself a pair!