Originally Posted by PropellerHead

DRL's were halogen across all years of E53 and E39.

Not every V8 has adaptive lights, but most 4.8's do. If you have HID in the US, you do have auto-leveling. It's a DOT requirement. Bi-Xenon was standard on all HID equipped E53's after the face lift.

The 'extra' halogen bulb in high beams is for flash to pass. Steady high beams use the mirror on the HID side.

I used IBus to code my DRL's off, added AE's and fogs as DRL.