All,
As I am sure most of you aware of(at least those who have read the manual and can remember it all) if you pull back on the turn signal stalk twice after the car is turned off, the HID headlights and tail lights will stay on for a couple of minutes for the purpose of helping you see around the car in the dark. A nice feature, but one which you generally forget about if you do not use it very often. In fact, that is the case with quit a few of these mostly forgotten options. If you never hold down on the station changing buttons on the steering wheel, you would never realize you can change stations, not just jump between preset stations.
Anyway, all of this said, I wish BMW could have seen fit to engineer the lights automatically turning off once you remove the key to the ignition and open the door. It probably would save a number of dead battery situations for us all.
Too much to ask?
Mark