Summary
The BMW 328i has 9 recalls spanning 1999 through 2018, with the most serious recent issue being an electrical short in the wiring on 2012-2018 models that can cause a fire without any warning.
On those 2012-2018 vehicles, a connector in the electrical system can short circuit and ignite nearby components, and the risk exists even when the car is parked. Also affecting a portion of that same era, 2007-2011 models have a heater element inside the positive crankcase ventilation valve that can short circuit, melt surrounding plastic and rubber parts, and start a fire in the engine bay while the vehicle is stationary.
On the drivetrain side, 2011 xDrive models can have front driveshaft attachment bolts that were not torqued properly at the factory, work loose over time, and cause the front wheels to lose drive power, potentially leaving the vehicle stranded or creating a hazard in traffic.
Going back to mid-production years, 2006-2012 models where the original steering wheel was replaced with a sport or M-sport wheel may carry a Takata-sourced driver airbag inflator that can explode during deployment, sending metal fragments into the cabin. This was a replacement-part issue rather than original equipment.
The 1999 model year carries several issues of its own. The driver airbag inflator on 1999 vehicles, both original equipment and certain replacement inflators installed on 1999-2001 models, shares the same Takata fragmentation risk. Separately, the side airbag system on 1999 four-door models can deploy unexpectedly when the car strikes a large pothole or curb at speed, and a related sensor issue can trigger both the side airbags and the head protection system without an actual side impact, also disconnecting the battery safety terminal. On the mechanical side, 1999 models also have a brake booster pushrod retaining clip that can come free, disconnecting the pushrod from the brake pedal arm and leaving the driver with no braking ability.
