At a glance
What can fail
Heat and humidity exposure may degrade the driver-front airbag propellant over time, causing the airbag to deploy with excessive force. A ruptured inflator could send fragments toward occupants or damage the airbag assembly, preventing proper function.
What the fix does
BMW will replace the driver-front airbag module or inflator. Dealers will inspect and replace the component as needed.
Summarized — see the official notice for exact wording, dates, and contacts.