This afternoon - took a short run to the store in the 535i. Parked it. Went back to the office. Came out after work and the battery was dead. As soon as I got come juice to the car - I noticed the aux fan was running. I can only assume it ran the last time out ans wiped out the battery.

AC was not on - its 20 degrees outside...Any idea on what to check.

Gotta leave rescueing a dead BMW from a DaimlerChrylser Assembly plant parking lot - how freaking embarassing.

Derek.-