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Old 11-15-2012, 10:00 AM is offline
I care my ride
Location: Renton
Join Date: Oct 2011
Posts: 13
Mein Auto: BMW X3
Originally Posted by x3oiler View Post
There are a number of items in the X3 known to NOT shut down when you turn off the ignition. For me - it is the stereo head unit. To test if this is your issue make sure you turn off the stereo manually before ignition off for a while. See how you go = especially if parking for a long time period.
If no difference then search this forum - there are a few causes for excess drain on the battery when the car is "supposed" to be off.
Thanks for sharing your knowledge. I will give a try next time I know I will park it for over a week.

I suspect something is draining battery. Because even the key is off ignition, and I can hear a buzzing noise in the car. Something is not powered off.
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