[m635csi]

Originally Posted by drivecar

It is a design flaw. The same thing happens if you leave a plain USB flash stick plugged in. May cars' battery died overnight not because the USB stick was drawing enough power to drain the battery, but because the car didn't go to sleep and the car's other internal systems kept drawing power through the night.
I have a USB stick with a LED light that flashes when it's active and it doesn't stop flashing even after the car is turned off.
BMW needs to fix this flaw. It's a hassle to unplug USB every time you park and this isn't a problem on non-BMW vehicles with USB.
It shouldn't be that difficult to set the USB port to power off either instantly with the ignition or better yet after 10 or 15 minutes of the engine being off.

any fix for this yet?