The 2000 BMW 328i has 4 recalls, all of them involving Takata airbag inflators on both the driver and passenger sides that can rupture during deployment and send metal fragments into the cabin.
All four recalls trace back to the same underlying hazard: frontal airbag inflators manufactured by Takata that can explode rather than inflate normally when triggered in a crash. On the driver's side, the inflators involved are Takata Non-Azide Driver units, and in some cases the defective inflator may have been installed as a replacement during a prior repair rather than being the original factory part. On the passenger side, the concern involves non-desiccated inflators containing phase stabilized ammonium nitrate propellant, which can become unstable over time. In either case, the result during a crash is the same: instead of cushioning the occupant, the inflator can burst and scatter sharp metal fragments through the interior, while the airbag itself may also fail to fully inflate and provide protection. Because these filings cover overlapping but distinct inflator types on both sides of the vehicle, a BMW dealer can confirm through the VIN exactly which remedy applies to a specific car.