[SmartSaves]

Originally Posted by tcbmhell

What I noticed is when the hood is open, the 48v system will switch off. You can find that if you open the hood, then press engine start button three times, go to diagnostic mode, you will see the message of 48v off. My understanding is BMW wants to disconnect the 48v battery when charging 12v battery. But it's still a mystery why the vehicle needs to be unlock when charging the 12v battery, actually you don't need to keep the door open, just keep the vehicle unlock.

Good find and observation. So, leaving hood open, but with doors locked vehicle wouldn't charge? Doors must be unlocked as well?

It is a problem for owners who wants to store their vehicles long term, because leaving door unlocked wouldn't be very wise. Now they will need to unplug the battery to keep it healthy, effectively rendering Connected Drive app useless!