Just dragging up this old topic to ask a further question - I got rid of the X5 and now have a 2003 7 Series E66 with NAVI02. V32 (released June 2008) is the latest software for that system, although technically V31 was the last update that had an effect on NAVI02. If I read the SIB for V32, under "Checking the software version" after loading the update, it states that the software version should be 8.4.4. I've checked mine and it is indeed 8.4.4, but to my knowledge no nav software updates have been carried out previously.

With software version 8.4.4 showing, does that mean the system IS in fact up to date and that this has been done since 2008?