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Originally Posted by ahillea
I have a 2005 X5 4.4IS. What will upgrading the software do to my nav system? TY!
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It'll do the same as upgrading software on any computer:
1. Fix bugs
2. Add features
Exactly what will happen is dependent on what version you have now ... and as my crystal ball has flat batteries I cannot tell at the moment what your current SW version is.