The 2003 BMW 325i has 3 recalls, the most serious being a Takata airbag defect affecting both the driver and passenger frontal inflators, which can rupture and send metal fragments into the cabin, causing serious injury or death.
Both airbag inflators contain phase-stabilized ammonium nitrate propellant that can degrade over time, making the inflators prone to explosive rupture during deployment. Because this affects both sides of the front seat, anyone in the front of the vehicle is at risk in a crash that triggers airbag deployment. Prior repair attempts for this defect did not fully resolve the issue for all affected vehicles, which is why multiple recall campaigns exist covering overlapping model ranges.
There is also a concern on automatic transmission models: with the engine running and the vehicle sitting still, the idle speed can surge unexpectedly up to around 1,300 RPM. If the driver selects a gear while this is happening, the vehicle can lurch forward or feel as though it is being pushed, raising the risk of a low-speed collision.