Infiniti Q50 Engine Problems by Year
By CarWhere Research · Updated
Some, but not unusually many. 84 of the 498 owner complaints filed with NHTSA for the 2014–2023 Infiniti Q50 (16.9%) name the engine, near the 19.4% median share across the 152 models we track. We have no published sales figures for this model, so there is no per-1,000 rate. The worst years are 2018, 2014 and 2017.
Engine complaints
84
Filed with NHTSA, 2014–2023 models
Per 1,000 sold
No sales data
Not computed without a published sales figure
Share of all complaints
16.9%
of 498 complaints for this model
Engine recalls
1
NHTSA campaigns, all years
Infiniti Q50 engine complaints by model year
Owner complaints filed with NHTSA whose component list includes Engine and Engine Cooling. Worst years are highlighted.
| Model year | Engine complaints | Share of all complaints | Crash / fire / injury | Engine recalls | Engine TSBs* |
|---|---|---|---|---|---|
| 2014WORST | 17 | 9% | 1 | — | 17 |
| 2015 | 11 | 8.8% | 2 | — | 16 |
| 2016 | 9 | 23.7% | 0 | — | 58 |
| 2017WORST | 17 | 27.9% | 1 | — | 55 |
| 2018WORST | 18 | 42.9% | 1 | — | 40 |
| 2019 | 11 | 36.7% | 1 | — | 29 |
| 2020 | 1 | 33.3% | 0 | — | 14 |
| 2021 | 0 | 0% | 0 | 21V234000 | 14 |
| 2022 | 0 | 0% | 0 | — | 10 |
| 2023 | 0 | 0% | 0 | — | 5 |
- Older model years have had more time on the road to collect complaints, so compare neighboring years, not 2010 against 2024.
- Crash / fire / injury = complaints where the owner reported a crash, a fire or an injury.
- *Technical service bulletins in the year's leading TSB categories that name the engine.
Common Infiniti Q50 engine problems owners describe
We searched the narratives of all 84 engine complaints for symptom keywords. One complaint can mention several, so the shares don't add up to 100%.
Infiniti Q50 years to avoid for the engine
2018 Infiniti Q50
18 engine complaints (42.9% of the year's 42). Most often described: engine failure, seizure or replacement.
2014 Infiniti Q50
17 engine complaints (9% of the year's 189). Most often described: overheating or coolant loss.
2017 Infiniti Q50
17 engine complaints (27.9% of the year's 61). Most often described: stalling or shutting off while driving.
Worst years are those with at least 10 engine complaints and at least 1.5 times the model's median year. For every year's overall verdict, including other systems, see the Infiniti Q50 years to avoid.
Infiniti Q50 engine recalls
NHTSA recall campaigns filed under Engine for any Infiniti Q50 model year. Recall repairs are free at a dealer. Check a specific car by VIN on NHTSA's site.
- 21V234000 · 2021-04-04 · 2021 models
After detecting rapid acceleration, the Engine Control Module (ECM) may incorrectly reduce engine power and reduce fuel supply to the engine.
Related research
Frequently asked questions
Does the 2018 Infiniti Q50 have engine problems?
Yes, it is one of the worst years. Owners filed 18 engine complaints with NHTSA for the 2018 Infiniti Q50, 42.9% of all 42 complaints for that year. The most common description is "engine failure, seizure or replacement" (5 complaints). 1 of those complaints report a crash, fire or injury.
Does the 2014 Infiniti Q50 have engine problems?
Yes, it is one of the worst years. Owners filed 17 engine complaints with NHTSA for the 2014 Infiniti Q50, 9% of all 189 complaints for that year. The most common description is "overheating or coolant loss" (2 complaints). 1 of those complaints report a crash, fire or injury.
Does the 2017 Infiniti Q50 have engine problems?
Yes, it is one of the worst years. Owners filed 17 engine complaints with NHTSA for the 2017 Infiniti Q50, 27.9% of all 61 complaints for that year. The most common description is "stalling or shutting off while driving" (5 complaints). 1 of those complaints report a crash, fire or injury.
Which Infiniti Q50 years have the most engine complaints?
2018 (18), 2014 (17) and 2017 (17), by owner complaints filed with NHTSA that name the engine. Raw counts favor older and higher-selling years, so treat them as a signal, not a rate.
What are the most common Infiniti Q50 engine problems?
In the 84 engine complaints, owners most often describe engine failure, seizure or replacement (25%), stalling or shutting off while driving (17.9%) and misfire or check-engine light (17.9%). One complaint can mention several symptoms.
Is this a engine failure rate?
No. These are complaints owners chose to file with NHTSA. Many failures are never reported, and one complaint is not a confirmed defect. Without sales figures, a high count can simply mean a high-selling model.
How we count
Counts are unique owner complaints (by NHTSA ODI number) filed with NHTSA for each Infiniti Q50 model year, from NHTSA's public complaints data fetched July 2026 to November 2026. A complaint counts as a engine complaint when NHTSA's component list for it includes Engine and Engine Cooling.
Per 1,000 sold divides complaints by published U.S. calendar-year sales for that year. A year needs at least 5,000 sales to get a rate, and a model needs at least 3 such years for its overall rate. The comparison median covers every model with at least 50 engine complaints that clears those floors.
These are complaint rates, not failure rates. Owners report some problems more than others, and a complaint is not a confirmed defect.
Sources
- NHTSA complaints by vehicle (owner complaints API) — National Highway Traffic Safety Administration
- NHTSA recalls by vehicle — National Highway Traffic Safety Administration
- Report a vehicle safety problem — National Highway Traffic Safety Administration