If your car battery is full but your engine won’t start
Try to start the engine and hold it there—you should hear the engine continuously turning over. Then press down the gear release button on your shifter and hold it forward. After a few seconds, your F30 should shift from Park to Neutral.
If your car battery won’t start
You’ll have to get underneath your BMW F30 for this one. Jack up your F30 and slide under with some tools. Remove the under panel found beneath the approximate location of your center console. You should see a bolt on the side of a large black box that’s pointed toward a metal lever. Take a 5mm Allen key and screen in the bolt until it compresses the lever to put your F30 in neutral.