2018 Infiniti Q50 reliability
NHTSA's file on the 2018 Infiniti Q50 holds 43 complaints after 9 years, a rate of 5 per year. That is more complaints per year than most Q50 years here — over the median of the other years, which is 2. NHTSA has 3 recalls on file, including Driveshaft, Camera, and Fuel pump.
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The complaints owners file most often name Engine (17 of 43), then Air bags (9) and Fuel and propulsion system (6). Those filings include 1 that reports a crash and 1 that reports a fire.
The 2017 Q50 has 62 complaints, 4 per year, and the 2019 has 30 complaints, 4 per year. The 2018 has more complaints per year than the 2017. The 2018 has more complaints per year than the 2019.
The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2018 Infiniti Q50. How we count. Data as of .
Recalls (3)
Complaints by component (43 total)
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Complaints filed per year
Excerpts from recent NHTSA complaint filings
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"Systemic defect front passenger seat occupancy sensor failure triggering an illuminated airbag warning light."
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"The contact owns a 2018 Infiniti Q50. The contact stated while driving at an undisclosed speed, the air bag warning light illuminated. The vehicle was taken to the dealer, where the contact was informed that the front…"
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"The contact owns a 2018 Infiniti Q50. The contact stated that while driving at an undisclosed speed, the front passenger Occupant Classification System (OCS) sensor became inoperable. The vehicle was taken to the…"
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"I am submitting this complaint regarding a safety defect in my 2018 Infiniti Q50, which was manufactured prior to May 1, 2018. Despite matching the make, model, and production timeframe associated with an existing…"
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"Odometer Fraud. The contact purchased a 2018 Infiniti Q50. It was discovered that there were three separate mileage discrepancies. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 50,370;…"
NHTSA crash ratings
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2018 Infiniti Q50 4 DR AWD | Not rated | Not rated | Not rated | 5 stars |
| 2018 Infiniti Q50 4 DR RWD | Not rated | Not rated | Not rated | 5 stars |
| 2018 Infiniti Q50 Hybrid 4 DR AWD | Not rated | Not rated | Not rated | 5 stars |
| 2018 Infiniti Q50 Hybrid 4 DR RWD | Not rated | Not rated | Not rated | 5 stars |
Stars are how this vehicle did in NHTSA crash tests. They are a safety result, separate from the complaint record. Not rated means that test was not run for this version.
Fuel economy
| Trim | Engine | Transmission | Drive | City | Hwy | Combined | Annual fuel cost |
|---|---|---|---|---|---|---|---|
| Q50 | 3L, 6-cyl | Automatic (7-speed) | Rear-wheel drive | 20 | 29 | 23 MPG | $3450 |
| Q50 | 2L, 4-cyl | Automatic (7-speed) | Rear-wheel drive | 23 | 30 | 25 MPG | $3200 |
| Q50 all-wheel drive | 3L, 6-cyl | Automatic (7-speed) | All-wheel drive | 19 | 27 | 22 MPG | $3650 |
| Q50 all-wheel drive | 2L, 4-cyl | Automatic (7-speed) | All-wheel drive | 22 | 28 | 24 MPG | $3300 |
| Q50 hybrid | 3.5L, 6-cyl | Automatic (7-speed) | Rear-wheel drive | 27 | 32 | 29 MPG | $2750 |
| Q50 hybrid all-wheel drive | 3.5L, 6-cyl | Automatic (7-speed) | All-wheel drive | 26 | 30 | 28 MPG | $2850 |
| Q50 Red Sport | 3L, 6-cyl | Automatic (7-speed) | Rear-wheel drive | 20 | 26 | 22 MPG | $3650 |
| Q50 Red Sport all-wheel drive | 3L, 6-cyl | Automatic (7-speed) | All-wheel drive | 19 | 26 | 22 MPG | $3650 |
Specs and fitment
Known issues for this generation
Recall 21V-402 covers certain 2020 Nissan Murano, INFINITI QX60, and other Nissan and Infiniti models, and certain 2021 INFINITI QX50 and Q50 vehicles: the front steering knuckle or rear axle housing may have been improperly manufactured. Dealers inspect and replace components as needed.
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Frequently asked questions
Is the 2018 Infiniti Q50 reliable?
NHTSA's file on the 2018 Infiniti Q50 holds 43 complaints after 9 years, a rate of 5 per year. That is more complaints per year than most Q50 years here — over the median of the other years, which is 2. NHTSA has 3 recalls on file, including Driveshaft, Camera, and Fuel pump.
What are common problems with a 2018 Infiniti Q50?
The complaints owners file most often name Engine (17 of 43), then Air bags (9) and Fuel and propulsion system (6). Those filings include 1 that reports a crash and 1 that reports a fire.
Is the 2018 Infiniti Q50 more reliable than the years next to it?
The 2017 Q50 has 62 complaints, 4 per year, and the 2019 has 30 complaints, 4 per year. The 2018 has more complaints per year than the 2017. The 2018 has more complaints per year than the 2019.
Has the 2018 Infiniti Q50 been recalled?
The 2018 Infiniti Q50 has 3 recalls on file with NHTSA. See the recalls table on this page for dates, components, and remedies.
How many complaints have owners filed about the 2018 Infiniti Q50?
Owners have filed 43 complaints about the 2018 Infiniti Q50 with NHTSA.
What mpg does a 2018 Infiniti Q50 get?
EPA-rated combined fuel economy for the 2018 Infiniti Q50 is 24.4 MPG. See the fuel economy table on this page for city and highway figures by engine and transmission.
What oil does an Infiniti Q50 take?
0W-20 full synthetic for the common 3.0L twin-turbo VR30 or 3.5L VQ fills. Confirm the filler-cap grade.
What tire sizes does the Q50 use?
225/55R17 on base packages and 245/40R19 on Red Sport packages are listed here.
What does recall 21V-402 cover involving the Q50?
Certain 2021 Infiniti Q50 vehicles (with QX50, QX60, Murano, and other models): the front steering knuckle or rear axle housing may have been improperly manufactured; dealers inspect and replace components as needed.