2021 Bmw M3
The Verdict
The 2021 Bmw M3 has 3 owner complaints filed with NHTSA. The most reported issues are body (2 complaints) and electrical (1 complaints). With a Klunk Score of 100/100, it earns a "Smooth Ride" rating. If you're shopping for a Bmw M3, consider the 2022 model year which has 66% fewer complaints.
Safe Bet
The 2022 has 66% fewer complaints
View the 2022 Bmw M3 dashboard →
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 2
Active safety recalls from NHTSA for this vehicle year.
BMW of North America, LLC (BMW) is recalling certain 2021 330i, 330i xDrive, M340i, M3, and 330e xDrive vehicles. The bolt securing the seat belt assembly to the frame was not tightened to specif...
Risk
An improperly installed seat belt assembly may not restrain an occupant as expected, increasing the risk of injury.
Remedy
BMW will notify owners, and dealers will inspect the front seat belt buckle assembly connection and, if necessary, replace it, free of charge. Owner notification letters were mailed on June 25, 20...
Reported Apr 10, 2026
BMW of North America, LLC (BMW) is recalling certain 2021 2 Series (230i, 230i xDrive, M240i, M240i xDrive), 330e, 330e Xdrive, 4 Series Coupe (430i, 430i xDrive, M440i xDrive) M4 Coupe, M4 Competi...
Risk
During a crash, a seat belt retractor that does not function as intended increases the risk of injury.
Remedy
Dealers will inspect the seat belt retractors (including the seat belts) and, if necessary, replace the retractors, free of charge. Owner notification letters were mailed on September 3, 2021. O...
Reported Apr 10, 2026
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Under the Hood
Each number is a complaint. Darker = bigger problem.
By Category
By Severity
Worst Problems
Complaints
Sunroof shattered while driving, no impact from outside.
Loud clunking and creaking noise from front suspension when driving on uneven or bumpy road surfaces.
Unknown. I was driving home when I get a message stating “passenger restraint system malfunction”