2021 Bmw 540i
The Verdict
The 2021 Bmw 540i has no owner complaints on file with NHTSA. With a Klunk Score of 100/100, it earns a "Smooth Ride" rating.
This is the cleanest year on record. Nice pick.
Klunk Score: Smooth Ride
This vehicle year has significantly fewer complaints than average. A reliable choice.
How is this calculated?
The Klunk Score ranks this vehicle year against all others in our database based on total owner complaints filed with NHTSA. 100 = fewest complaints (top tier), 0 = most complained-about. Scores above 60 are better than average; below 40 means more problems than most.
Recalls 1
Active safety recalls from NHTSA for this vehicle year.
BMW of North America, LLC (BMW) is recalling certain 2022-2026 840i, 840i xDrive, 2021-2023 540i, 540i xDrive, M550i xDrive, and 2024-2026 750e xDrive vehicles. The connection between the driveshaf...
Risk
An unexpected loss of drive power can increase the risk of a crash. In addition, a damaged driveshaft can result in a vehicle rollaway if the parking brake is not applied, increasing the risk of a ...
Remedy
Dealers will inspect the connection between the driveshaft and rear axle differential, and apply adhesive or replace the driveshaft and rear axle differential, as necessary, free of charge. Owner n...
Reported Dec 8, 2026
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Under the Hood
Each number is a complaint. Darker = bigger problem.
Complaints
No complaints match your filters.