So I'm still having problems. I disconnected the battery from the car, put it on the charger overnight last night, and took a voltage reading on it this morning from a multimeter. It read 13.3 volts at the posts. I took it to Autozone this morning, as well, and they confirmed 13.28 volts, indicated a good battery.

So I came home, put the battery back in the car, started it, and got the obligatory 4WD/AWD/DSC fault from the loss of power to the steering angle sensor. I cleared that with the lock to lock wheel sweep.

IDrive is still acting funky, it continuously freezes on me. It seems to still have the Sirius presets that I set up a couple of days ago still stored in memory, but the darn thing froze three times while I was attempting to set the date and time. I rebooted it with the eject-eject-mute combo a bunch of times, but it never stays unfrozen, and sometimes blacks out and returns to the BMW screen 2-3 times before finally playing music.

Seems that I've pretty much ruled out the car's battery and charging system. Am I looking at a failed CCC or something at this point?

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2007 BMW X5 4.8i - Sport Package, Wife's Car

2001 BMW 325i - My Car.

2005 Ford Excursion Limited 4x4, 6.0 Powerstroke Diesel. My first "grown up" car.