The problem with all the electrical issues has its root in a bad alternator. After several high battery drain warnings and then an electrical meltdown, the service department did amperage checks on the alternator output. Seems it was not putting out enough amps to charge the battery. With all the electronics on the X5 (even with locking the doors) when turned off, the battery slowly drains of power till warning and then flicker, flicker, dead. Go to your service department and have them check the alternator. I think this is the smoking gun many have been looking for over the past few years.