Head-to-head reliability
BMW Z4 vs Honda Accord
How the BMW Z4 and Honda Accord compare on NHTSA complaints, recalls and crash reports — and which is the lower-risk used buy.
Based on NHTSA owner-complaint & recall records
BMW Z4 vs Honda Accord: The Z4 has 32 complaints over 10 years (3.2/yr) with a fire-risk coolant pump recall, while the Accord has 4,438 complaints (443.8/yr) including sudden power loss and brake failures. The Z4 is lower-volume but has serious electrical issues; the Accord's higher rate reflects widespread problems. Source: NHTSA owner complaints.
The picture
Is the BMW Z4 or Honda Accord more reliable?
A plain-English read on what the NHTSA record says about living with each vehicle.
BMW Z4
The BMW Z4 is a low-volume sports car with a modest complaint rate of about 3.2 per year over the last decade. Owners report issues concentrated in the electrical system and engine, including starter failures and a coolant pump recall that could cause a short circuit or fire. While not high-volume, these are serious concerns that a buyer should address proactively.
Honda Accord
The Honda Accord is a high-volume sedan with a much higher complaint rate of about 443.8 per year, reflecting its popularity. Complaints are widespread across engine, electrical, forward collision avoidance, and brakes, with many reports of sudden power loss, sensor malfunctions, and brake system failures. This suggests a more complex set of reliability issues that could affect daily driving.
The numbers
Side-by-side NHTSA record
Lower is better in every category. The highlighted cell is the stronger result.
| Category | BMW Z4 | Honda Accord |
|---|---|---|
| Total complaintsAll model years combined | 32 Better | 4,438 |
| Safety recallsFederal recall campaigns | 29 Better | 38 |
| Crash reportsCrash-related complaints | 3 Better | 160 |
| Complaints per yearAveraged across model years | 3.2 Better | 443.8 |
| Reported injuriesTied to owner complaints | 1 Better | 144 |
| Reported deathsTied to owner complaints | 0 Better | 3 |
Source: NHTSA owner complaints & recall records.
What actually goes wrong
The problems owners report
The most-complained-about systems on each vehicle — what fails, and what owners say in their own words.
BMW Z4
- 01ELECTRICAL SYSTEM11
- 02ENGINE8
- 03ENGINE AND ENGINE COOLING7
- 04UNKNOWN OR OTHER3
- 05STEERING3
Owners report starter failures, with one 2020 Z4 M40i needing a replacement starter assembly. This can leave you stranded and is a known issue.
A coolant pump recall (24V608000) can cause a short circuit and thermal event or fire. Owners also mention the part unavailability, delaying repairs.
The same coolant pump issue is highlighted here, with owners receiving recall notices but unable to get parts promptly, leaving them at risk.
“The engine starter failed on my 2020 BMW Z4 M40i. The vehicle experienced starting failures and the repair shop diagnosed a faulty/shorted engine starter assembly. The symptoms and component failure match the exact defect description of active safety recalls…”
“The contact owns a 2015 BMW Z4. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had…”
Honda Accord
- 01ENGINE985
- 02ELECTRICAL SYSTEM863
- 03FORWARD COLLISION AVOIDANCE821
- 04UNKNOWN OR OTHER725
- 05SERVICE BRAKES592
Owners report sudden loss of power and warning lights for brake, hill descent, and ABS systems, which can be alarming and dangerous on the highway.
Issues include TPMS warnings leading to tire failure and rodent damage to wiring harnesses, causing electrical malfunctions.
The system can malfunction, with reports of false activations or warnings for adaptive cruise control and lane keeping, which can be distracting or cause unexpected braking.
“I purchased this vehicle at 0 miles in July 2025 from Honda Accord in Pensacola Florida. I reported in July 2025 that there was a noise and I was unhappy with the vehicle and would like to exchange the vehicle within the 30 days months later, the noise got lo…”
“Vehicle drove normally in the morning commute. In the afternoon commute it started normally and as i approached highway speeds the alarms started showing up. the Brake, hill descent system, abs, critical failure. the vehicle started losing speed and could not…”
Official recalls
Safety recalls on record
Federal recall campaigns — the defect, the risk, and the fix. Confirm any open recall was completed before you buy.
BMW Z4 — 29 recalls
The defect: 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,…
The risk: Unintentionally closing the windows or sunroof without the key present can increase the risk of injury to occupants inside the vehicle.
The fix: 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. Own…
The defect: 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.
The risk: A short circuit in the starter relay may increase the risk of a fire.
The 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 B…
The defect: 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, 2…
The risk: Fire increases the risk of injury.
The 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…
The defect: BMW of North America, LLC (BMW) is recalling certain 2023-2024 Toyota Supra, 2022-2025 2 Series Coupe, 2021-2023 5 Series, 2022-2026 Z4, 2023-2024 4 Series Gran Coupe, 4 Series Convertible, 4 Series Coupe, 3 Series, 2021-2025 X4, and 2021-2024 X3 vehicles. Please see the recall report for a complet…
The risk: Fire increases the risk of injury.
The fix: Dealers will replace the engine starter, free of charge. Owner notification letters are expected to be mailed on August 28, 2026. Owners may contact BMW customer service at 1-800-525-7417 or Toyota's customer service at 1-800-331-4331. Veh…
Honda Accord — 38 recalls
The defect: Honda (American Honda Motor Co.) is recalling certain 2023-2025 Honda Accord Hybrid vehicles. Due to a software error, the integrated control module (ICM) central processing unit (CPU) may reset while driving, causing a loss of drive power.
The risk: A loss of drive power increases the risk of a crash or injury.
The fix: Dealers will reprogram the ICM CPU software, free of charge. Owner notification letters were mailed January 6, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's number for this recall is TN2. Vehicle Identificati…
The defect: Honda (American Honda Motor Co.) is recalling certain 2023-2026 CR-V Hybrid, Accord Hybrid, and 2025-2026 CR-V Fuel Cell EV vehicles. When using the tire repair kit, pressure may build within the sealant bottle, causing the bottle cap to detach.
The risk: A detached bottle cap can become a projectile and strike the user or others nearby, increasing the risk of injury.
The fix: Dealers will replace the tire repair kit nozzle or sealant bottle, free of charge. Interim letters notifying owners of the safety risk were mailed July 27, 2026. Additional letters will be sent once the final remedy is available, anticipat…
The defect: Honda (America Honda Motor Co.) is recalling certain 2023 Civic, Acura RDX, Acura Integra, and 2022 Honda Accord vehicles. A ball valve in the vehicle stability assist (VSA) modulator may leak brake fluid, which can result in unintended vehicle movement when the brake hold feature is engaged or an…
The risk: Unintended vehicle movement or an unexpected increase in brake pedal travel can increase the risk of a crash or injury.
The fix: Dealers will replace the VSA modulator, free of charge. Owner notification letters were mailed July 24, 2023. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are OEJ, XEK, AEY, XEX and OEW.
The defect: Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V, CR-V Hybrid, Passport, Ridgeline, Accord Hybrid, 2020 Acura MDX, 2022 Acura MDX, 2020-2022 Acura R…
The risk: An air bag that deploys unintentionally during a crash can increase the risk of injury.
The fix: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed March 28, 2024. This is a phased recall. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls ar…
Buyer analysis
BMW Z4 or Honda Accord: which should you buy?
The BMW Z4 has far fewer complaints per year (3.2 vs 443.8), but its issues are serious, like fire risk. The Accord's higher volume reflects more widespread problems, but many are less severe. In practice, the Z4 may be more reliable in terms of frequency, but the Accord's issues are more varied and could affect more systems.
Key differences
- The Z4 has a specific coolant pump recall that can cause a fire, while the Accord has no such fire risk but more frequent electrical and sensor issues.
- Accord owners report sudden power loss and brake system failures, which are more immediate safety concerns than the Z4's starter failures.
- The Accord's forward collision avoidance system malfunctions are common, while the Z4 has no such reports.
- The Z4's complaints are concentrated in a few areas, while the Accord's are spread across many, indicating a broader range of potential problems.
- Check if the coolant pump recall (24V608000) has been performed; if not, have it done immediately to avoid fire risk.
- Listen for slow cranking or starting issues, which could indicate a failing starter assembly.
- Test the forward collision avoidance system and look for warning lights; false activations are common.
- Inspect the wiring harness for rodent damage, especially if the car is parked outdoors.
Before you buy
- For the BMW Z4: verify all recalls are completed, especially the coolant pump recall, and have a mechanic check the starter.
- For the Honda Accord: get a full diagnostic scan for engine and brake system codes, and test all driver-assistance features.
- Ask for service records to see if the Accord has had any electrical or brake repairs.
- Take both cars for a test drive at highway speeds to feel for any power loss or brake issues.
- Consider a pre-purchase inspection by a specialist for each brand.
Year by year
Which model years to avoid
Complaints per model year for both vehicles — lower is better. The spikes are the years to scrutinize.
| Year | BMW Z4 | Honda Accord |
|---|---|---|
| 2026 | 0 | 5 |
| 2025 | 0 | 101 |
| 2024 | 1 | 214 |
| 2023 | 0 | 224 |
| 2022 | 1 | 238 |
| 2021 | 1 | 226 |
| 2020 | 5 | 355 |
| 2019 | 5 | 677 |
Check the actual car
Comparing models is smart. Checking the VIN is essential.
Brand averages tell you the trend. A VIN check tells you what's wrong with the specific BMW Z4 or Honda Accord in front of you — accident history, open recalls and title records.
Go deeper
Full reliability reports
- Comparison
- BMW Z4 vs Honda Accord
- BMW Z4 total complaints
- 32
- Honda Accord total complaints
- 4,438
- BMW Z4 total recalls
- 29
- Honda Accord total recalls
- 38
- BMW Z4 avg complaints/year
- 3.2
- Honda Accord avg complaints/year
- 443.8
- More reliable overall
- BMW Z4
- BMW Z4 top complaint area
- ELECTRICAL SYSTEM
- Honda Accord top complaint area
- ENGINE