- Safety
- —
- not rated
- Recalls
- 5
- on record
- MPG
- —
- combined
Open recalls on record
5 safety recalls. Recall repairs are free at any franchised dealer — check the VIN before you buy.
Vehicle Summary
2021 BMW Z4
Before You Buy
Safety record at a glance
- Recall campaigns
- 5
- Owner complaints
- 0
- Complaints citing a crash
- 0
These are raw counts from NHTSA records. They are not normalized by how many of these vehicles are on the road, so a model that sold in large numbers will tend to show more of everything. We do not publish a composite safety or reliability score.
5 Recalls on Record
1 of these is high-severity. Contact a dealer to verify these have been completed.
Safety recalls
5 NHTSA campaigns affecting this model year.
- 21V554000high
Safety restraint issue
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 Competition Coupe, 330i, 330i xDrive, M340i, M340i xDrive, M3, M3 Competition, 530i, 530i xDrive, 540i, 540i xDrive, MINI Hardtop 2 Door (Cooper, CooperS, JCW), X2 sDrive28i, X2 xDrive28i, X2 M35i, Z4 sDrive30i, Z4 M40i, MINI Hardtop 2 Door (Cooper SE), MINI Convertible (Cooper, Cooper S, JCW), MINI Clubman (Cooper S, Cooper S All4, JCW), MINI Countryman (Cooper, Cooper All4, Cooper S, Cooper S All4, JCW All4), Rolls Royce Ghost, MINI Countryman (Cooper S E All4), Rolls Royce Phantom, Rolls Royce Cullinan, and Toyota Supra vehicles. The passenger seat belt Automatic Locking Retractor (ALR) may deactivate early, before the webbing fully retracts. As such, these assemblies fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Consequence
During a crash, a seat belt retractor that does not function as intended increases the risk of injury.
Full campaign recordRemedy
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 customer service at 1-800-525-7417; 1-866-825-1525 (MINI); 1-877-877-3735 (Rolls Royce); and 1-888-270-9371 (Toyota).
- 20V700000high
Fuel system issue
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
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.
Consequence
The failed weld may allow fuel to leak, increasing the risk of a fire in the presence of an ignition source.
Full campaign recordRemedy
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.
- 21V598000high
Engine issue
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 available.
Consequence
Loss of braking assist can increase the risk of a crash.
Full campaign recordRemedy
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.
- 25V636000high
Electrical issue
ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY
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.
Consequence
A short circuit in the starter relay may increase the risk of a fire.
Full campaign recordRemedy
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. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov November 14, 2025.
- 26V056000high
Electrical issue
ELECTRICAL SYSTEM:STARTER ASSEMBLY
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 recall report for a complete list of all models. The engine starter may overheat and catch fire due to wear on an internal component.
Consequence
Fire increases the risk of injury.
Full campaign recordRemedy
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. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning March 24, 2026.
NHTSA crash-test ratings
NHTSA holds no crash-test rating for this model year.
Not every model year is tested. A missing rating is not a poor rating.
Fuel economy & emissions
The EPA holds no fuel-economy record for this model year.
The EPA does not publish a record for every model year.
Consumer complaints
No owner complaints filed with NHTSA for this model year.
Nothing on file. Newer model years often have few complaints simply because fewer cars are on the road yet.
Safety timeline
Every dated recall and NHTSA investigation for the 2021 BMW Z4, newest first.
- Recall
Fire increases the risk of injury.
- Recall
A short circuit in the starter relay may increase the risk of a fire.
- Recall
Loss of braking assist can increase the risk of a crash.
- Recall
During a crash, a seat belt retractor that does not function as intended increases the risk of injury.
- Recall
The failed weld may allow fuel to leak, increasing the risk of a fire in the presence of an ignition source.
Dates are the NHTSA report-received date for recalls and the ODI open/close date for investigations. Crash-test ratings are not shown here because the source does not provide a reliable publication date for them.
Specifications & ratings
Specifications
- Body class
- Unknown
- Drive type
- Unknown
- Engine
- 0L 0-cyl
- Fuel type
- Unknown
- Transmission
- Unknown
- Seats
- 0
Explore related
Systems recalled
Safety timeline
Full timeline- Recall
Fire increases the risk of injury.
- Recall
A short circuit in the starter relay may increase the risk of a fire.
- Recall
Loss of braking assist can increase the risk of a crash.
- Recall
During a crash, a seat belt retractor that does not function as intended increases the risk of injury.
- Recall
The failed weld may allow fuel to leak, increasing the risk of a fire in the presence of an ignition source.