Battery goes dead on my x5 2001

Hi thanks for looking have hade this problem with my x5 2001 had it tested for drains but none found can anyone help last chance
Thanks Martin

FSR, does the blower come on by itself?

Here's a video and comments on the video from other X owners.

Hi thanks for the help but is this a left hand car, if so is my one on drivers side ?
Thanks Martin

I don't know if it is LHD or RHD since I didn't make the video. The point of the video is that the Final stage resistor will run the fan even if the key is removed. I had an Audi that was like that, the fan will continue to run after I removed the key. In my Audi it was a defective sensor that always told the computer that the engine was still hot, so the computer continue to run the fan.