Hi,

I hadn't drive a 2001 x5 for a couple weeks and then when I got in, the battery was dead. I called a tow truck for a jump and he said it was probably from the drop in temperature lately (it's about 32F/0C)....and then I got in today (after less than 24 hours) and the battery was dead again.

Any idea why? I've never had this happen before...and I drove it a couple times last night with no problem.