2021 BMW Z4
Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2021 BMW Z4 is worth — from official NHTSA and EPA data. 11 on record.
2021 BMW Z4 at a glance
Included: that car's specs and build sheet, model-year recall campaigns and a fair price.
2021 BMW Z4 recalls 5
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 an…
Fix: 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 o…
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.
Fix: 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 Identificatio…
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.
Fix: 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.
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…
Fix: 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 Ro…
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.
Fix: 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.
Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.
Dimensions & weight
Manufacturer-reported figures for the 2021 BMW Z4 — ranges cover the 2 body / drivetrain versions on record. Source: Transport Canada vehicle specifications via NHTSA.
Investigations & service bulletins
Manufacturer service bulletins 115
Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 115.
The EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original in-service date.
Bulletin B010324 · Engine · May 2026While driving on an uneven road, a “clicking”sound is heard from the front bow/cowl panelarea of the convertible top.
Bulletin B540225 · Structure · Mar 2025The convertible top does not open or close.
Bulletin B540324 · Structure · Jan 2025An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in thecenter of the instrument panel. The groaning noise always occurs when either a ventilation flap, air stratification flap or the recirculated airflap mov…
Bulletin B640422 · Electrical System, Visibility · Feb 2024The basic conditions for initializing the power windows are not met.
Bulletin B510819 · Electrical System, Visibility · Jan 2024The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle âÂÂdi…
Bulletin B611305 · Electrical System · Jan 2024At low outside temperatures (below 40 degrees F) and slow driving speeds (i.e. when parking, maneuvering)with a large steering angle, the front end can be slightly axially misaligned. This can be felt (jerking)/ heard via an acoustic acknowledgement (clunk) as…
Bulletin B360121 · Steering · Jan 2024A vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP) system(NVLD natural vacuum leak detection). For this condition, the following fault is stored in the DME: 190302 - fuel tank ventilation and scavenging air system,…
Bulletin B160123 · Fuel System, Gasoline · Jan 2024The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 ÃÂâÃÂÃÂÃÂàÃÂâÃÂÃÂÃÂÃÂHU-H: ResetÃÂâÃÂÃÂÃÂàwill be stored in the HU-H3.
Bulletin B610524 · Electrical System, Equipment · Jan 2024?The outer A-pillar trim panel (arrow) protrudes outward (circled) towards the cowl seal.
Bulletin B511323 · Structure · Aug 2023Source: NHTSA Office of Defects Investigation, listed for the Z4 RWD. Model-year data, not specific to one car.
Canadian recalls 6
Transport Canada recall campaigns for the 2021 BMW Z4. Relevant if the car was first sold in, or imported from, Canada.
Lights And Instruments
Issue: Under certain conditions, the windshield wiping system may not meet certain requirements of Canadian regulations. Safety Risk: This small error does not affect safety. Corrective Actions: This is not a recall. BMW has made changes to ensure that all new vehicles meet Canadian regulations.
Transport Canada #2026285 · Jun 2026Engine
Issue: On certain vehicles, the engine starter may not have been manufactured properly. As a result, the starter could overheat. Safety Risk: A starter that overheats can create the risk of a fire. Corrective Actions: To reduce the safety risk, BMW recommends not using the remote start function and not leaving the vehicle unattended with the engine running until the recall repa…
Transport Canada #2026040 · Jan 2026Electrical
Issue: On certain vehicles, water could leak into the starter relay and cause it to corrode. If this happens, the relay could short circuit and the starter could overheat. Safety Risk: A short circuit and/or a starter that overheats can create a fire risk, even while the vehicle is parked and turned off. Corrective Actions: To reduce the safety risk, BMW advises that you should…
Transport Canada #2025499 · Sep 2025Label
Issue: On certain vehicles, the tire and loading information label does not list that there is no spare tire in both official languages. The label reads as "NONE" when it should read as "NONE / AUCUN". Canadian regulations require the information to be listed on the label in both English and French. Safety Risk: This error does not affect vehicle safety. Corrective Actions: Thi…
Transport Canada #2024544 · Aug 2024Brakes
Issue: On certain vehicles, a software problem could cause the vacuum pump to be damaged during engine starting. If this happens, there could be a loss of brake assist. This can cause an increase in brake pedal effort and increase the distance needed to stop the vehicle. Safety Risk: A sudden increase in brake pedal force could lead to an increased stopping distance. This could…
Transport Canada #2021479 · Aug 2021Seats And Restraints
Issue: On certain vehicles, the passenger seat belt assemblies may contain defective automatic locking retractors (ALR). As a result, the seat belts may not properly lock to secure a child seat. Safety Risk: A seat belt that is not properly locked could increase the risk of injury in a crash. Corrective Actions: The company will notify owners by mail and instruct you to take yo…
Transport Canada #2021448 · Jul 2021Source: Transport Canada Motor Vehicle Safety Recalls Database.
About the BMW Z4
The BMW Z models are a line of roadsters manufactured by German automaker BMW. The Z stands for Zukunft, and has been produced in four different series with six generations consisting of roadster, coupé, sports car, and concept variants.
From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.
2021 BMW Z4 vehicles on record
2021 BMW Z4WBAHF91080WX37283
2021 BMW Z4WBAHF9102NWX43846
2021 BMW Z4WBAHF9C08NWX54489
2021 BMW Z4WBAHF3C04NWX41428
2021 BMW Z4WBAHF3C08MWX19804
2021 BMW Z4WBAHF91080WX14344
2021 BMW Z4WBAHF9C07MWX10840
2021 BMW Z4WBAHF11020WX50919
2021 BMW Z4WBAHF3C05NWX42863
2021 BMW Z4WBAHF3C08MWX09824
2021 BMW Z4WBAHF3C05MWX29870