@bluebimma on Instagram: "Here’s the testing data of the F85 X5M seat ventilation system. There are a series of fans built into the upper and lower seat cushions that allow airflow against your back through the leather. Since the e53 can’t control these fans, the circuits are pulled from the seat control module and ran standalone. I found a switch that will be installed on the side of the seat and can support up to 5 amps. These fans pull less than 1amp when they’re all running! #bluebimma #bmw