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 3 Series averages 32 complaints per year, with 23 injuries, while the Lexus IS averages 5.8 complaints and 3 injuries. Both have 1 recall. The Lexus IS has fewer reported problems, but the BMW offers sportier performance. 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 is a sporty sedan that demands more attention from owners. Over 10 years, it averaged 32 complaints per year, with engine and electrical issues dominating. Owners report serious problems like smoke from the engine, starter failures, and coolant leaks, often at low mileage. This suggests higher ownership costs and potential safety risks if maintenance is neglected.
Lexus IS
The Lexus IS is a luxury sedan known for its comfortable ride and typically strong reliability. With only 5.8 complaints per year on average, it has far fewer reported issues than the BMW. However, owners have reported engine misfires, fuel pump problems, and dashboard deterioration. While less frequent, these issues can still be safety-critical and costly to fix.
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 | 320 | 58 Better |
| Safety recallsFederal recall campaigns | 1 | 1 |
| Crash reportsCrash-related complaints | 33 | 1 Better |
| Complaints per yearAveraged across model years | 32.0 | 5.8 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
- 01ENGINE99
- 02ELECTRICAL SYSTEM83
- 03UNKNOWN OR OTHER71
- 04POWER TRAIN22
- 05AIR BAGS21
Owners report smoke from the engine while driving, starter motor failures, and coolant leaks from the heat management module. These can lead to breakdowns or fires, and repairs are often expensive.
Complaints include starter failures that may be linked to a recall for fire risk, and battery capacity loss. Electrical gremlins can cause no-start conditions and safety hazards.
Premature failures of the heat management module and oil filter housing cause coolant and oil leaks. These can lead to engine overheating and costly repairs if not addressed.
There are 21 complaints about air bags, though details are limited. Any air bag issue is a serious safety concern that should be inspected immediately.
“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
- 02ENGINE12
- 03STRUCTURE10
- 04UNKNOWN OR OTHER8
- 05POWER TRAIN7
Owners report recurring engine misfires, reduced power, and sudden loss of acceleration. These can be dangerous when merging or overtaking, and may require multiple dealer visits.
Similar misfire events are reported, with flashing check engine lights and engine shaking. This points to a persistent defect that can affect drivability and emissions.
Some owners of newer models report health and safety issues, though specifics are vague. This could indicate problems with materials or cabin air quality.
Dashboard decomposition creates a sticky, reflective surface that impairs visibility. This is a comfort and safety issue that may be costly to fix.
“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 (5.8 vs. 32.0 for the BMW 3 Series). In practice, this means you're less likely to face frequent repairs with the Lexus, but when issues do arise, they can still be serious, such as engine misfires. The BMW demands more vigilance and potentially higher maintenance costs.
Key differences
- BMW 3 Series has over 5 times more complaints per year than the Lexus IS (32.0 vs. 5.8).
- BMW's top issues are engine and electrical failures, including starter fires and coolant leaks; Lexus's top issues are fuel system misfires and dashboard deterioration.
- BMW has 23 injuries reported vs. 3 for Lexus, indicating more severe outcomes in crashes.
- Both have 1 recall, but BMW's recall is for transmission control module, while Lexus's is for fuel pump.
- Check for open recall on the starter motor; owners report fires and no-start conditions.
- Inspect for coolant leaks around the heat management module and oil filter housing, especially at low mileage.
- Test drive for engine misfires, hesitation, or reduced power; listen for unusual engine shaking.
- Inspect the dashboard for stickiness or reflectivity, especially on older models.
Before you buy
- Run the VIN on NHTSA.gov to check for open recalls on both models.
- Ask for complete maintenance records, focusing on engine and electrical repairs for the BMW.
- For the Lexus, request a diagnostic scan for stored misfire codes and fuel pump history.
- Take a long test drive including highway speeds to feel for hesitation or power loss.
- Have a pre-purchase inspection by a mechanic familiar with the brand, paying attention to the specific issues listed.
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 | 1 | 1 |
| 2025 | 4 | 3 |
| 2024 | 22 | 3 |
| 2023 | 26 | 15 |
| 2022 | 8 | 13 |
| 2021 | 33 | 2 |
| 2020 | 53 | 6 |
| 2019 | 41 | 2 |
| 2018 | 59 | 3 |
| 2017 | 73 | 10 |
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
- 320
- Lexus IS total complaints
- 58
- BMW 3 Series total recalls
- 1
- Lexus IS total recalls
- 1
- BMW 3 Series avg complaints/year
- 32.0
- Lexus IS avg complaints/year
- 5.8
- More reliable overall
- Lexus IS
- BMW 3 Series top complaint area
- ENGINE
- Lexus IS top complaint area
- FUEL/PROPULSION SYSTEM