YearToAvoid

2023 BMW Z4 Reliability Data: Problems & Recalls

No verdict The 2023 BMW Z4 has 0 NHTSA complaints and a complaint index of 0, the lowest of any Z4 year on record, but it carries 2 recalls covering the transmission mechatronics module and an electrical control unit software update.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
0/100
#17 of 17 Z4 years
Verdict
No verdict
vs. other years of this model
Complaints
0
unique NHTSA reports
Recalls
2
distinct NHTSA campaigns
Crashes
0
reported in complaints
Fires
0
Injuries
0
Top issue
—
Best nearby year
2012
rated Best
NHTSA overall rating
Not rated
EPA combined MPG
27
24 city / 32 hwy
Injuries / deaths
0 / 0

Top 2023 BMW Z4 problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

No component data.

2023 BMW Z4 recalls

2 NHTSA recall campaigns list this model year.

  1. NHTSA 23V821000Dec 6, 2023Transmission & Powertrain552 vehicles

    Power train:automatic transmission:control module (TCM/PCM/tecm)

    BMW of North America, LLC (BMW) is recalling certain 2023 Toyota GR Supra, 3 Series Sedan (330i xDrive, M340i xDrive, M3), 5 Series Sedan (530i, 530i xDrive, M5), 4 Series Gran Coupe (430i, 430i xDrive), 4 Series Coupe (430i, 430i xDrive, M440i xDrive), 4 Series Convertible (430i, 430i xDrive, M440i xDrive), 8 Series Coupe (840i, M850i xDrive, M8), 8 Series Convertible (840i, M850i xDrive, M8), 8 Series Gran Coupe (850i xDrive, M8), X3 SAV (X3 xDrive30i, X3M), X4 SAV (X4 xDrive30i), X5 SAV (X5 xDrive40i, X5 M50i, X5M), X6 SAV (X6 xDrive40i, X6 M50i, X6M), and Z4 sDrive30i, Z4 M40i vehicles. The weld seam of the integrated transmission control unit's cover may not have been manufactured properly, which could allow automatic transmission oil to leak into the transmission control unit.

    Risk: Transmission oil that leaks into the control unit can lead to a seizure of the transmission gears, causing a sudden loss of drive power and increasing the risk of a crash.

    Remedy: Dealers will replace the transmission mechatronics module and the automatic transmission fluid, as necessary, free of charge. Owner notification letters were mailed January 26, 2024. Owners may contact BMW customer service at 1-800-525-7417.

  2. NHTSA 23V099000Feb 17, 2023Electrical System3,193 vehicles

    Electrical system:software

    BMW of North Americal, LLC (BMW) is recalling certain 2023 8 Series Coupe (840i, 840i xDrive, M850i xDrive, M8), 8 Series Convertible (840i, 840i xDrive, M850i xDrive, M8), 8 Series Gran Coupe (840i, 840i xDrive, M850i xDrive, M8, Alpine B8 xDrive), 2 Series Coupe (230i, 230i xDrive, M240i xDrive, M2), and 2022-2023 Z4 sDrive30i, Z4 M40i vehicles. When the digital key is removed from the vehicle, the Electronic Control Unit (ECU) software may still allow the power windows and sunroof to be closed. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 118, "Power-operated Window Systems."

    Risk: Unintentionally closing the windows or sunroof without the key present can increase the risk of injury to occupants inside the vehicle.

    Remedy: Dealers will update the software for the Electronic Control Unit (ECU), free of charge. In addition, the digital key function via cellular service and Wi-Fi capability will be deactivated until the vehicle is updated with new software. Owner notification letters are expected to be mailed April 11, 2023. Owners may contact BMW customer service at 1-800-525-7417.

2023 BMW Z4 fuel economy and fuel cost

City
24 MPG
Highway
32 MPG
Combined
27 MPG
Annual fuel cost (EPA)
$2,950
15,000 mi/yr
Fuel
Premium
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2023 compared with other Z4 years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’05’06’07’08’09’10’11’12’13’14’15’16’19’20’21’22’23
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2021No verdict61526.5
2022No verdict131326.5
2023No verdict00227

All BMW Z4 years: best and worst →

Frequently asked questions

Is the 2023 BMW Z4 reliable?
NHTSA lists 0 complaints for the 2023 Z4, giving it a complaint index of 0, the best score among all 17 Z4 model years with data.
Does the 2023 BMW Z4 have any recalls?
Yes, two recalls. One covers replacing the transmission mechatronics module and automatic transmission fluid, and the other covers an Electronic Control Unit software update plus a digital key function.
Are the 2023 Z4 recalls do-not-drive recalls?
No. Neither of the two recalls is classified as do-not-drive or park-outside by NHTSA.
How does the 2023 Z4 compare to other Z4 years?
With a complaint index of 0, the 2023 Z4 ranks 17th out of 17 worst-to-best, meaning it has fewer reported problems than every other Z4 year in the data, including the 2005 model year's index of 100.
What is the fuel economy of the 2023 BMW Z4?
EPA rates the 2023 Z4 at 27 mpg combined (24 city / 32 highway), with an estimated annual fuel cost of $2,950.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.