I would like to know too, but I don't think most folks at dealers know. I tried a battery tender whilst unlocked and the car made a number of sounds like it was trying to do something but God knows what. After it did that for 15 minutes I pulled off the tender.
Any BMW employees on here that can give us a technically correct answer?
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"Either get busy living, or get busy dying. That's GD right." - Red (Shawshank)
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