At a glance
What can fail
The driver-front airbag in certain replacement sport or M-sport steering wheels may degrade over time due to heat and humidity exposure. The degraded propellant could cause the airbag to deploy with excessive force or rupture, sending fragments toward occupants or disabling the airbag.
What the fix does
BMW will mail you a notification. Take your vehicle to a BMW dealership to have the driver-front airbag module inspected and replaced if necessary.
Summarized — see the official notice for exact wording, dates, and contacts.