Head-to-head reliability
BMW 3 Series vs Lexus IS
How the BMW 3 Series and Lexus IS compare on NHTSA complaints, recalls and crash reports — and which is the lower-risk used buy.
Based on NHTSA owner-complaint & recall records
BMW 3 Series vs Lexus IS: The BMW averages 30.6 complaints per year, with engine and electrical issues common. The Lexus averages 4.8 complaints per year, mainly fuel system and misfire problems. The Lexus IS is statistically more reliable. Source: NHTSA owner complaints.
The picture
Is the BMW 3 Series or Lexus IS more reliable?
A plain-English read on what the NHTSA record says about living with each vehicle.
BMW 3 Series
The BMW 3 Series, over the past decade, has accumulated 306 complaints—about 30 per year—with engine and electrical issues dominating. Owners report problems like starter motor failure, smoke from the engine bay, and infotainment bugs that can affect navigation. While it's a popular sport sedan, the data suggests a higher likelihood of encountering powertrain or electrical gremlins during ownership.
Lexus IS
The Lexus IS shows a much lower complaint rate, averaging fewer than 5 per year over 10 years. The main issues center on engine misfires and fuel system problems, with some owners also noting structural concerns. Overall, the IS appears to be a more trouble-free choice, though the misfire reports are worth noting for potential buyers.
The numbers
Side-by-side NHTSA record
Lower is better in every category. The highlighted cell is the stronger result.
| Category | BMW 3 Series | Lexus IS |
|---|---|---|
| Total complaintsAll model years combined | 306 | 48 Better |
| Safety recallsFederal recall campaigns | 1 | 1 |
| Crash reportsCrash-related complaints | 31 | 1 Better |
| Complaints per yearAveraged across model years | 30.6 | 4.8 Better |
| Reported injuriesTied to owner complaints | 23 | 3 Better |
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 3 Series
- 01ENGINE90
- 02ELECTRICAL SYSTEM77
- 03UNKNOWN OR OTHER71
- 04AIR BAGS21
- 05POWER TRAIN21
Owners report the starter motor pinion failing and auxiliary battery losing capacity, leading to no-start situations. Some also describe smoke from the engine bay while driving, which could indicate an oil leak or electrical fault.
Smoke from the engine area and failure to restart are common, often linked to the starter relay. The iDrive 8 infotainment system can lose GPS location, potentially distracting the driver.
A 'Passenger Restraint System Malfunction' message appears, with dealers suspecting a wiring harness short. This could disable airbags in a crash.
“The contact owns a 2021 BMW 330I. The contact stated while driving 50 MPH and coming to a stop at a red traffic light, the contact started smelling smoke. There was no warning light illuminated. The contact turned off the vehicle, but the vehicle failed to re…”
“1. The engine starter motor (specifically the pinion starter) has failed, and the auxiliary battery is also showing reduced capacity (only a portion of its 660 cold cranking amps). The vehicle is currently at a service center where the technician has diagnose…”
Lexus IS
- 01FUEL/PROPULSION SYSTEM14
- 02STRUCTURE10
- 03ENGINE9
- 04POWER TRAIN7
- 05UNKNOWN OR OTHER6
Recurring engine misfires cause flashing check engine lights, reduced power, and shaking. The fuel pump recall addresses a potential failure that could stall the vehicle.
Misfires in the 8AR-FTS engine are documented multiple times, leading to loss of acceleration. Owners report the issue persists after repairs.
The transmission may hesitate or fail to downshift when quick acceleration is needed, creating a safety risk in merging or evasive maneuvers.
“I am filing this updated complaint to supplement my prior complaint (NHTSA ID No. XXX, filed January 27, 2026) regarding a recurring, safety-critical engine defect in my 2020 Lexus IS300 RWD, 8AR-FTS engine. DEFECT: Three documented misfire events over seven…”
“This vehicle has a recurring, safety-critical defect involving intermittent engine misfires, flashing MILs, reduced engine power, sudden loss of acceleration, and noticeable engine shaking. Despite multiple repair attempts and extended diagnostics by a dealer…”
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 3 Series — 1 recall
The defect: 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, M440…
The 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.
The fix: 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 1-800-525-741…
Lexus IS — 1 recall
The defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2015-2022 Lexus RC, 2016-2020 GS, and 2022 IS vehicles. The low-pressure fuel pump inside the fuel tank may fail.
The risk: Fuel pump failure can cause an engine stall, increasing the risk of a crash.
The fix: Dealers will replace the fuel pump assembly, free of charge. Interim letters notifying owners of the safety risk were mailed June 5, 2026. Additional letters will be sent once the final remedy is available. Owners may contact Toyota's cust…
Buyer analysis
BMW 3 Series or Lexus IS: which should you buy?
The Lexus IS has far fewer complaints per year (4.8 vs 30.6) and fewer crash-related incidents. In practice, this means a Lexus IS owner is less likely to face a breakdown or safety-related defect during ownership.
Key differences
- BMW has 6x more complaints per year than Lexus IS.
- BMW engine issues include starter failure and smoke; Lexus engine issues center on misfires.
- BMW electrical problems (infotainment, wiring) are more varied; Lexus fuel system problems are more focused.
- BMW has 31 crash-related complaints vs 1 for Lexus.
- Check for any signs of smoke or burning smell from the engine bay, especially after a drive.
- Test the infotainment system for GPS accuracy and ensure no warning lights (airbag, check engine) are on.
- Ask for service records showing fuel pump replacement and any misfire repairs.
- Test drive to feel for hesitation or delayed downshifts when accelerating quickly.
Before you buy
- Check NHTSA recall status for both vehicles using their VINs.
- On BMW: inspect starter motor and auxiliary battery condition; test iDrive functions.
- On Lexus: verify fuel pump recall was performed; test acceleration for smoothness.
- Request a pre-purchase inspection by a mechanic familiar with these models.
- Review the vehicle's complaint history on NHTSA.gov for the specific model year.
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 3 Series | Lexus IS |
|---|---|---|
| 2026 | 0 | 0 |
| 2025 | 4 | 3 |
| 2024 | 20 | 3 |
| 2023 | 22 | 9 |
| 2022 | 8 | 13 |
| 2021 | 32 | 2 |
| 2020 | 51 | 4 |
| 2019 | 40 | 2 |
| 2018 | 58 | 3 |
| 2017 | 71 | 9 |
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 3 Series or Lexus IS in front of you — accident history, open recalls and title records.
Go deeper
Full reliability reports
- Comparison
- BMW 3 Series vs Lexus IS
- BMW 3 Series total complaints
- 306
- Lexus IS total complaints
- 48
- BMW 3 Series total recalls
- 1
- Lexus IS total recalls
- 1
- BMW 3 Series avg complaints/year
- 30.6
- Lexus IS avg complaints/year
- 4.8
- More reliable overall
- Lexus IS
- BMW 3 Series top complaint area
- ENGINE
- Lexus IS top complaint area
- FUEL/PROPULSION SYSTEM