NHTSA recall 21V046000
Power Train · BMW of North America, LLC
Details
What's wrong: The output shafts (left/right) which transfer power from the driveshaft to the rear wheels may break due to a heat treatment error during supplier production.
Why it matters: A broken output shaft can lead to a loss of drive power or a rollaway condition in a parked vehicle (if the parking brake is not engaged), increasing the risk of a crash.
The fix: Bmw will notify owners, and dealers will replace the output shaft(s), free of charge. The recall began March 24, 2021.
Affected vehicles on MotorDeets
All model years NHTSA lists
2020 Bmw 530I, 2021 Bmw 530I, 2020 Bmw 540I, 2021 Bmw 540I, 2021 Bmw 740Li.
Recalls can cover only some VINs. Check yours on NHTSA's official recall page for 21V046000.
Source: NHTSA recall records. Summary shortened; the official notice has the full text.