The contact owns a 2008 BMW 328XI. The contact stated that while the vehicle was parked, the air bag deployed unintendedly. The contact stated there was no warning light illuminated prior to the air bag deployment. The air bag deployed, and there was no occupant inside the vehicle. The contact stated that after the air bag had deployed, the air bag warning light was illuminated after the air bag had deployed. The vehicle was recently taken to the dealer and the vehicle was taken to the dealer, and the dealer informed the contact that the VIN was not under recall. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline. The failure mileage was approximately 162,000.