The 2008 BMW 323i has two recalls of equal severity: a driver's airbag inflator that can explode during deployment, sending sharp metal fragments into the cabin, and HVAC wiring that can overheat and catch fire even with the vehicle parked and unattended.
The airbag concern applies to vehicles where the original steering wheel was replaced with a sport or M-sport steering wheel, as the inflator in those wheels can rupture rather than deploy normally. The wiring issue involves the electrical connectors that control airflow for the heating and air conditioning system, which can overheat and melt, creating a fire risk regardless of whether the car is running.