http://bmtechnic.co.uk/bmw-diagnostic-cable/ email these guy very helpful,I m looking to getting the white cable for my car when funds allow,purely because I want to do some coding and in case I get the dreaded dpf fault,
I do have one of these
http://www.scangauge.com/products/ that I have used on my previous cars and found it to be excellent,but I don't know if this will read and clear the dpf fault code in the way you want pal, where do you live?