Most common 2021 BMW M550I problems
Share of the 1 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
BMW M550I complaints by model year
Best M550I years: 2021. Compare all years →
2021 BMW M550I recalls (3)
Power train › Driveline › Driveshaft
BMW of North America, LLC (BMW) is recalling certain 2020-2026 840i, 840i xDrive, 2021-2023 540i, 540i xDrive, M550i xDrive, and 2024-2026 750e xDrive vehicles. The connection between the driveshaft and the rear differential may become damaged, possibly resulting in a loss of power to the rear wheels or a vehicle rollaway.
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.
Back over prevention › Software
BMW of North America, LLC (BMW) is recalling certain 2019-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, X4 xDrive30i, X4 M40i, M550i, X4M, X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5M, X5 M50i, X7 xDrive40i, X7 xDrive50i, X7 M50i, Alpina XB7, 330i, 330i xDrive, M340i, M340i xDrive, and 8 Series Coupe, Convertible and Grand…
Remedy: BMW will notify owners, and dealers will inspect the rearview camera software and update it if necessary, free of charge. The recall began April 16, 2021. Owners may contact BMW customer service at 1-800-525-7417.
Back over prevention › Sensing system › Camera
BMW of North America, LLC (BMW) is recalling certain 2020-2021 X3 sDrive 30i, X3 xDrive 30i, X3M 40i, X3 xDrive 30e, X4 xDrive 30i, X4M 40i, 530i, 540i, 540i xDrive, M550i xDrive, M5, 550e, 550e xDrive, and 550e iPerformance vehicles. A small portion of the rearview image may be slightly obscured.
Remedy: BMW will notify owners, and dealers will inspect and, if necessary, program the rearview camera with updated software. The recall began November 18, 2020. Owners may contact BMW customer service at 1-800-525-7417.
2021 BMW M550I engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.4L 8-cyl turbo | 8-speed automatic | AWD | 17 / 25 / 20 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2021 BMW M550I a good car?
Based on 1 owner complaint filed with NHTSA, the 2021 M550I rates average: 57% fewer complaints than a typical year of the M550I at the same age. It is one of the best M550I years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2021 BMW M550I?
The transmission & drivetrain — 1 complaint, 100% of all complaints for this model year.
How many recalls does the 2021 BMW M550I have?
There are 3 recalls for the 2021 BMW M550I, the most recent from August 12, 2026 (driveshaft). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the BMW M550I?
The best years by complaints, compared at the same age, are 2021. See the full BMW M550I years comparison.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.