Just purchased a 2000 M5 with a Navigation problems - Please Help
 

Dark screen/The screen occasionally shows white lines(horizontal) like its trying to work?
Radio works for a minute or two at a time, then shuts off?
Light on Nav unit in trunk flashes about every second.

Thanks in advance!

bump

Please see my earlier post on """2002 X5 with mkIII 3-1/63 Help""". I am going to buy a factory CD to solve the issue. I think we have the same problem. Good luck.

This is a symptom of a bad navigation computer. Most likely, if you replace the nav computer, everything will come back to life.

thanks Brian