2018 Infiniti Q50
The Verdict
Worst problem area
Engine
Engine leads by volume: 18 of 43 complaints (42%) mention it.
Complaints filed fell from 62 in 2017 to 43 in 2018.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 2016 | 2017 | 2018 | 2019 | 2020 | vs. 2018 Midsize Cars |
|---|---|---|---|---|---|---|
| Annual fuel cost ($) | 2,600–3,700 | 2,650–3,500 | 2,650–3,500 | 3,100–3,500 | 3,350–3,500 | |
| Combined MPG | 21–30 | 22–29 | 22–29 | 22–25 | 22–23 | |
| City / Highway MPG | 18–28 / 26–33 | 19–27 / 26–32 | 19–27 / 26–32 | 19–23 / 26–30 | 19–20 / 26–29 | |
| CO₂ tailpipe (g/mi) | 295–422 | 308–412 | 308–408 | 356–407 | 387–407 | |
| Complaints filed | 39 | 62 | 43 | 30 | 3 | |
| Recalls issued | 4 | 4 | 3 | 1 | 0 | |
| Crash-involved complaints | 1 | 3 | 1 | 3 | 0 | |
| Fire-involved complaints | 0 | 0 | 1 | 0 | 0 | |
| Injuries reported | 1 | 1 | 0 | 0 | 0 | |
| Deaths reported | 0 | 0 | 0 | 0 | 0 | |
| Configurations compared | 8 | 6 | 6 | 6 | 4 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2018 Infiniti Q50 have?
3 NHTSA recall campaigns as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2018 Infiniti Q50?
Engine: 18 of 43 NHTSA complaints (42%) mention it.
What gas mileage does the 2018 Infiniti Q50 get?
EPA rates it 22–29 MPG combined.
How much does it cost to fuel a 2018 Infiniti Q50?
EPA estimates $2,650–$3,500 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (8)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic (S7) | 6 | 3.0L | Rear-Wheel Drive | Premium | Midsize Cars | 20 mpg | 29 mpg | 23 mpg | $3,350 | 387 g/mi |
| Configuration 2 | Automatic (S7) | 6 | 3.0L | All-Wheel Drive | Premium | Midsize Cars | 19 mpg (low) | 27 mpg | 22 mpg (low) | $3,500 (high) | 408 g/mi (high) |
| Configuration 3 | Automatic (S7) | 6 | 3.0L | Rear-Wheel Drive | Premium | Midsize Cars | 20 mpg | 26 mpg (low) | 22 mpg (low) | $3,500 (high) | 404 g/mi |
| Configuration 4 | Automatic (S7) | 6 | 3.0L | All-Wheel Drive | Premium | Midsize Cars | 19 mpg (low) | 26 mpg (low) | 22 mpg (low) | $3,500 (high) | 405 g/mi |
| Configuration 5 | Automatic (S7) | 4 | 2.0L | Rear-Wheel Drive | Premium | Midsize Cars | 23 mpg | 30 mpg | 25 mpg | $3,100 | 349 g/mi |
| Configuration 6 | Automatic (S7) | 4 | 2.0L | All-Wheel Drive | Premium | Midsize Cars | 22 mpg | 28 mpg | 24 mpg | $3,250 | 368 g/mi |
| Configuration 7 | Automatic (S7) | 6 | 3.5L | Rear-Wheel Drive | Premium | Compact Cars | 27 mpg (high) | 32 mpg (high) | 29 mpg (high) | $2,650 (low) | 308 g/mi (low) |
| Configuration 8 | Automatic (S7) | 6 | 3.5L | All-Wheel Drive | Premium | Compact Cars | 26 mpg | 30 mpg | 28 mpg | $2,750 | 321 g/mi |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 18 | 0 | 1 | 0 | 0 |
| Transmission & Drivetrain | 3 | 0 | 0 | 0 | 0 |
| Fuel System | 6 | 0 | 0 | 0 | 0 |
| Electrical | 6 | 0 | 0 | 0 | 0 |
| Brakes | 4 | 1 | 0 | 0 | 0 |
| Steering | 1 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 3 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 8 | 0 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 6 | 1 | 0 | 0 | 0 |
| Body, Seats & Latches | 2 | 1 | 0 | 0 | 0 |
| Visibility & Lighting | 1 | 0 | 0 | 0 | 0 |
| Other | 6 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (3)
POWER TRAIN:DRIVELINE:DRIVESHAFT · Campaign 24V470000 · Jun 24, 2024
Defect: Nissan North America, Inc. (INFINITI) is recalling certain 2011-2013 M56, 2012-2013 M35 Hybrid, 2014-2018 Q50, Q70 Hybrid, 2014-2019 Q70, and 2015-2019 Q70L two-wheel drive vehicles. The driveshaft can fatigue and break.
Consequence: A broken driveshaft can result in a loss of drive power, or a vehicle roll away when the vehicle is in park without the parking brake applied. Both scenarios can increase the risk of a crash.
Remedy: Dealers will replace the driveshaft, free of charge. Owner notification letters were mailed August 13, 2024. Owners may contact INFINITI's customer service at 1-800-662-6200. INFINITI's numbers for this recall are R24A5 and R24A7.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA · Campaign 19V654000 · Sep 13, 2019
Defect: Nissan North America, Inc. (Nissan) is recalling certain 2018-2019 Nissan Altima, Armada, Frontier, Kicks, Leaf, Maxima, Murano, NV, NV200, Pathfinder, Rogue, Rogue Sport, Sentra, Titan, Titan Diesel, Versa Note and Versa Sedan vehicles, as well as Infiniti Q50, Q60, QX30 and QX80 vehicles. Additionally included are 2019 Nissan GT-R and Taxi and Infiniti QX50, QX60, Q70, Q70L vehicles. The back-up camera and display settings can be adjusted such that the rear view image is no longer visible and the system will retain that setting the next time the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
Consequence: The lack of an image in the back-up camera display increases the risk of a crash.
Remedy: Nissan will notify owners in phases, having dealers update the back-up camera settings software, free of charge. The recall began November 11, 2019 and all affected VINs should be activated. Owners may contact Nissan customer service at 1-800-867-7669 or INFINITI customer service at 1-800-662-6200.
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ELECTRICAL SYSTEM:SOFTWARE · Campaign 17V476000 · Jul 31, 2017
Defect: Nissan North America, Inc. (Nissan) is recalling certain 2016-2018 Infiniti Q50 and 2017 Infiniti Q60 vehicles equipped with a 2.0L engine. Incorrect Fuel Pump Control Module (FPCM) software may allow the fuel level in the main tank to be too low to supply fuel to the engine, causing the engine to stall while driving.
Consequence: An engine stall can increase the risk of a crash.
Remedy: Nissan will notify owners, and Infiniti dealers will reprogram the Fuel Pump Control Module (FPCM) with corrected software, free of charge. The recall began August 29, 2017. Owners may contact Infiniti customer service at 1-800-662-6200.