I have tried to insert a burned copy of the nav cd into my 740i (MKIII), and after this randomly the NAV will say 'Reading CD please wait' but nothing will happen, and now the audio will cut off after 3-4 minutes. I guess the burned copy was not good. Also very difficult to eject the original CD once I put it back in. (It works, but occasionally has issues)

I have a local dealer saying that they will upgrade the NAV. (Free of charge) Will this fix the problem? Is this like re-installing the NAV unit? I going to sell this car and need this NAV to work properly in order to sell it.

Any solutions would be appreciated......

Mani
2001 - 740i