One problem related to engine stall has been reported for the 2009 BMW 328. The most recently reported issues are listed below.
I was driving on a busy highway between 70-80 mph. The engine stalled and I was unable to press the gas. I managed to get the car off on an exit due to momentum. After sitting in a parking lot for 30 minutes, the car cranked back up without any issue. The stalling issue has occurred twice.