Found this post due to issues with battery/alternator etc - very handy and saves a lot of probing around as you can have the voltage display up while your driving.
The only variation from the above procedure is that the Voltage display in in "Menu 9" not 8.

Cheers & thx to the guy that put in on here.

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X5 4.4i 2006 sports package, Titanium silver, Sports exhaust with Xpipe, Limo tint, 20" wheels 168's (Black), 25mm H&R wheel spacers& arch flares all round - Loud........

Work in progress -:
Replace BMW Ipod system with DICE - installed but no sound yet??