Happy to be corrected in interests of getting the right answer
However, BMW's website shows the halogens coming on as part of their description of the adaptive lighting on the X1: (Image 3 in the sequence)
http://www.bmw.com/_common/shared/ne...d-design-1.jpg
http://www.bmw.com/_common/shared/ne...d-design-2.jpg
http://www.bmw.com/_common/shared/ne...d-design-3.jpg
http://www.bmw.com/_common/shared/ne...d-design-4.jpg
The text is ambiguous:
" If required, the extended functions of the LED headlights with cornering lights offer a bright and efficient Bi-LED light for low beam and high beam. The cornering lights in LED technology allow an adaptive beam distribution with increased illumination of the side of the road in urban traffic."