The 2007 BMW 328XI has 3 recalls, the most serious being two separate concerns involving the driver's airbag inflator, which can explode during deployment and send sharp metal fragments into the cabin.
The first airbag concern involves the original driver-side inflator module, which can rupture violently rather than inflate properly, turning the airbag itself into a source of metal shrapnel for the driver and nearby occupants. The second involves vehicles where the original steering wheel was replaced with a sport or M-sport wheel equipped with a similarly defective inflator, carrying the same risk of explosion and fragment ejection. The electrical recall covers the wiring and connectors that control the heating and air conditioning system's airflow. That wiring can overheat, melt its connectors, and start a fire, and because the risk is present even when the car is parked and unattended, the vehicle does not need to be running for a fire to occur.