YearToAvoid

2023 BMW Z4 Problems, Recalls & Reliability

Verdict

No verdict

Complaint Index

0/100

#12 most-complained of 12 Z4 years

The 2023 BMW Z4 has 0 NHTSA complaints and a complaint index of 0, ranking 12th of 12 model years (best among them). It carries 2 recalls, covering the transmission mechatronics module and an electrical/ECU software update.

Complaints
0
Recalls
2
Crashes / fires
0 / 0
Injuries / deaths
0 / 0
NHTSA overall rating
Not rated
EPA combined MPG
27
24 city / 32 hwy

Top 2023 BMW Z4 problems

NHTSA owner 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)0255075100201020112012201320142015201620192020202120222023
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2021No verdict91526.5
2022No verdict181326.5
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 BMW Z4, giving it a complaint index of 0 and the best rank (12th of 12) among Z4 model years covered.
Does the 2023 BMW Z4 have any recalls?
Yes, NHTSA lists 2 recalls for the 2023 Z4: one for the transmission mechatronics module and automatic transmission fluid, and one for an Electronic Control Unit software update affecting the electrical system.
What is the top problem area for the 2023 BMW Z4?
NHTSA data shows no reported problem areas and 0 complaints for the 2023 Z4, so no dominant issue has emerged in the complaint data.
How does the 2023 Z4 compare to other Z4 years?
With a complaint index of 0, the 2023 Z4 ranks better than every other year listed, including 2011 (complaint index 100, Avoid) and 2013 (complaint index 91, Avoid).
What is the fuel economy of the 2023 BMW Z4?
The 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.