[Clyde]

The fuse diagram uses many cryptic symbols, but it's better than nothing.

The circuits can be traced in the BMW WDS:
WDS BMW Wiring Diagram System - 6 E63 E64

 

[nightflyer]

Thanks, I'll try to figure something out tomorrow.

 

[tduhamel]

The 2 inboard lights with H7 bulbs are your "flash to pass" lights that only come on when you pull back on the highbeam stalk. They also function as daytime running lights (DRL) at a reduced output if you set the idrive to have DRLs on. In Canada, our DRLs are programmed to work at all times when the xenons are off, no option. My M6 is a 2007. Some of the newer ones use the angel eyes as DRLs I believe. As to your xenon bulb problem, hope you get it sorted out. Can probably get cheaper replacement on ebay or from some of the sponsors of the board. Check jlevisw.

 

[nightflyer]

I did find cheaper xenon bulbs. i googled BMW parts and found OEM bulbs for $83. Thanks for the information. I'm leaving the country for a week and won't have a chance to chase the problem until I return, but by the then my replacement bulb will be here.