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  #22  
Old 03-01-2012, 03:53 PM
stlmethod stlmethod is offline
Registered User
Location: St. Louis
 
Join Date: Jul 2009
Posts: 83
Mein Auto: 2003 325xi
I have an e46 3 series with the MKIV nav system. I was having gray screen issues. I initially upgraded the software to V32, which didn't help. I ultimatley replaced the navigation DVD drive. It's a DIY but I paid the dealer $130 parts & $122 labor to do it. So far it works (Been 2 months) but I did have 2 occasions where after hitting a bump where it went back to the gray or flickering screen then rebooted. I'm assuming it may be the cooling fan or battery being bounced around:
http://www.xoutpost.com/electronics/...-nav-unit.html
Also check out:
bimmernav.com
Revtronic.com

J
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