Do you just have the business Nav as opposed to Professional Media?
Bit late now but you can download the three DVDs for free or pay £25 from the dealer. You can get the FSC code on-line for $50.
Current: 2014 F31 320d M-Sport, Professional Media, Visibility Pack, Reversing Camera, DAB
Previous: 2013 F10 520d M-Sport, 2011 F10 520d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2