Old thread... I know... But I was just fooling around with the BMW Scanner 1.4 and was able to activate DRLs on the 2001 3.0i X5.

It is super easy to program features with this device. Once in the BMW Scanner software, let it do the full vehicle scan, then you just open one of the computers listed in one of the 3 pages (mine only has computer modules available in pages 1 & 2), and then click on "programing" or "coding" and navigate from there. Eventually you'll get to a screen that has a bunch of features listed by name and you just click the ones you want to select/de-select and then click "write". Done.