2021 BMW Z4 Recalls, Complaints & Specs
5 safety recalls list the 2021 BMW Z4, and owners have filed 1 complaint with NHTSA. At least one recall carries a do-not-drive or park-outside advisory. Check your own VIN below.
5 safety recalls for the 2021 BMW Z4
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Starter assembly (electrical system)
BMW of North America, LLC (BMW) is recalling certain 2021-2023 Toyota Supra, 2022-2023 2 Series Coupe, 2021-2024 5 Series (xDrive), 2021-2022 Z4, 2022-2024 4 Series (Gran Coupe), 2021-2024 4 Series (Convertible and xDrive Convertible), 2021-2023 4 Series (Coupe), 2021-2024 3 Series, 2021-2023 X4, 2021-2024 X3 vehicles. Please see the…
Remedy: Dealers will replace the engine starter, free of charge. Owner notification letters were mailed July 21, 2026. Owners may contact BMW customer service at 1-800-525-7417 or Toyota's customer service at 1-800-331-4331.…
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Relay (electrical system) Park outside
BMW of North America, LLC (BMW) is recalling certain 2019-2021 BMW 330i, 2019-2022 BMW Z4, 2020-2022 BMW 530i, X3, X4, Toyota Supra, 2021-2022 BMW 430i, 430i Convertible, and 2022 BMW 230i vehicles. The engine starter relay may corrode, causing the relay to overheat and short circuit.
Remedy: Owners are advised to park their vehicles outside and away from structures until the remedy is complete. Dealers will replace the engine starter, free of charge. Owner notification letters were mailed February 6, 2026.…
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Engine
BMW of North America, LLC (BMW) is recalling certain 2020 M340i, M340i xDrive, 540i, 540i xDrive, X3 M40i, 2020-2021 X4 M40i, 745Le xDrive, 2019-2021 Z4 M40i, and 2020-2021 Toyota Supra vehicles. During engine start, the engine management software may cause loss of braking assist. Full mechanical braking (without assist) remains…
Remedy: Dealers will update the engine management software, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact BMW customer service at 1-800-525-7417.
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Seat belts
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 Competition Coupe, BMW 4 Series Convertible (430i, M440i), BMW X1 sDrive28i, xDrive28i, 2 Series Gran Coupe (228i, 228i xDrive, M235i xDrive), M2…
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. Owners may contact BMW…
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Tank assembly (fuel system)
BMW of North America, LLC (BMW) is recalling certain 2020-2021 Z4 and 2020-2021 Toyota Supra vehicles. The weld between the fuel tank halves may have been insufficiently welded, causing the weld to fail.
Remedy: BMW will notify owners, and dealers will replace the fuel tank, free of charge. The recall began December 18, 2020. Owners may contact BMW customer service at 1-800-525-7417 or Toyota customer service at 1-888-270-9371.
1 owner complaint filed with NHTSA
Owners of the 2021 BMW Z4 have filed 1 complaint with NHTSA. Complaints peaked in 2026 with 1 filed that year.
Most-reported components
What owners are reporting
“There is a strong chemical smell when the AC is turned on and the system is loosing refrigerant. There is a common issue on these cars of premature evaporative core corrosion.”
Owner complaint to NHTSA, July 30, 2026 · Unknown or other
Fuel economy and specs
EPA ratings for the 2021 BMW Z4 (Z4 M40i, Z4 sDrive30i). Ranges cover every tested configuration.
| Combined | 25–28 mpg |
|---|---|
| City / Highway | 22–25 / 30–32 |
| Fuel | Premium |
| EPA class | Two Seaters |
| Engine | 4/6 cyl, 2/3 L |
| Transmission | Automatic (S8) |
Compare BMW Z4 model years
Recall and complaint counts for every BMW Z4 model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 2002 BMW Z4 | 0 | 4 |
| 2003 BMW Z4 | 4 | 414 |
| 2004 BMW Z4 | 1 | 411 |
| 2005 BMW Z4 | 0 | 190 |
| 2006 BMW Z4 | 2 | 91 |
| 2007 BMW Z4 | 2 | 33 |
| 2008 BMW Z4 | 2 | 19 |
| 2009 BMW Z4 | 4 | 22 |
| 2010 BMW Z4 | 5 | 10 |
| 2011 BMW Z4 | 6 | 46 |
| 2012 BMW Z4 | 4 | 5 |
| 2013 BMW Z4 | 3 | 7 |
| 2014 BMW Z4 | 3 | 7 |
| 2015 BMW Z4 | 1 | 5 |
| 2016 BMW Z4 | 1 | 4 |
| 2019 BMW Z4 | 6 | 5 |
| 2020 BMW Z4 | 6 | 5 |
| 2021 BMW Z4 | 5 | 1 |
| 2022 BMW Z4 | 3 | 1 |
| 2023 BMW Z4 | 2 | 0 |
| 2025 BMW Z4 | 0 | 1 |
Checking a specific 2021 BMW Z4
How do I know if my 2021 BMW Z4 has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 5 campaigns currently list the 2021 BMW Z4; your car may already have been repaired under some of them.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised BMW dealer with your VIN and the NHTSA campaign number (for example 20V700000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other BMW models
- X53,154 complaints
- 328I2,578 complaints
- X32,004 complaints
- 325I1,386 complaints
- 3 Series843 complaints
- 528I835 complaints
- 330I815 complaints
- 335I810 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.