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2018 Infiniti Q50 2.0t Pure

The 2018 Infiniti Q50 2.0t Pure is a 208-hp 2.0-liter turbocharged inline-4 with a 7-speed automatic w/sport mode and downshift rev matching and rear-wheel drive. It starts at $34,200 MSRP and is rated at 25 mpg combined.

It makes 208 horsepower at 5,500 rpm and 258 lb-ft of torque at 1500-3500 rpm, spinning to a 6,300 rpm redline. EPA fuel-economy estimates are 23 mpg city and 30 mpg highway (25 mpg combined).

The Q50 measures 189.6 inches long on a 112.2-inch wheelbase and has a curb weight of 3,671 lb.

Spec Value
Vehicle
Body TypeSedan
PowertrainGas
Price
MSRP$34,200
MSRP with Destination$35,195
Destination Charge$995
Engine
Engine Type2.0L turbo I4 (Mercedes-Benz M274), DOHC 16-valve
Displacement2 L
Horsepower208 hp @ 5,500 rpm
Torque258 lb-ft @ 1500-3500 rpm
Redline6,300 rpm
ValvetrainDOHC, 4 valves/cylinder, Variable Valve Timing Control
Bore and Stroke83.0 x 92.0
Compression Ratio9.8:1
Injection TypeDirect fuel injection
Drivetrain
Drive TypeRear-Wheel Drive
Transmission
Transmission7-speed automatic w/Sport mode and Downshift Rev Matching
1st Gear4.783 (36 mph **)
2nd Gear3.103 (55 mph **)
3rd Gear1.984 (86 mph **)
4th Gear1.371 (124 mph **)
5th Gear1 (171 mph **)
6th Gear0.871 (196 mph **)
7th Gear0.776 (220 mph **)
Reverse3.859
Final Drive2.937
Fuel Economy
City23 MPG
Highway30 MPG
Combined25 MPG
Recommended FuelPremium unleaded
Tank Capacity20 gal
Suspension
Front SuspensionIndependent double-wishbone w/stabilizer bar
Rear SuspensionMulti-link independent w/stabilizer bar
Front Stabilizer Bar31.8 mm
Rear Stabilizer Bar20.0 mm
Turning Diameter36.7 ft
Brakes
Front Brake Disc12.6 x 1.1 in, vented
Rear Brake Disc12.1 x 0.6 in, vented
Tires & Wheels
Wheels Front17x7.5-in split 5-spoke aluminum-alloy
Wheels Rear17x7.5-in split 5-spoke aluminum-alloy
Tires Front225/55R17 (run-flat, all-season)
Tires Rear225/55R17 (run-flat, all-season)
Dimensions & Weight
Length189.6 in
Width71.8 in
Height57.2 in
Wheelbase112.2 in
Front Track60.8 in
Rear Track61.6 in
Ground Clearance5 in
Cargo Volume13.2 ft³
Curb Weight3,671 lbs
Weight Distribution (F/R)54% / 46%
Interior
Headroom Front40.2 in
Headroom Rear37.5 in
Legroom Front44.5 in
Legroom Rear35.1 in
Shoulder Room Front56.7 in
Shoulder Room Rear56.1 in
Hip Room Front53.2 in
Hip Room Rear52.5 in
** Theoretical max speed per gear at redline

Safety & Recalls

NCAP safety ratings

Overall Not rated
Frontal crash Not rated
Side crash Not rated
Rollover ★★★★★ (9.7 % risk)
Tested variant: 2018 Infiniti Q50 4 DR RWD
Other tested variants (1)
  • 2018 Infiniti Q50 4 DR AWD: overall not rated

Recalls

3 recalls on file with NHTSA for the 2018 Infiniti Q50. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.

Jun 21, 2024 · POWER TRAIN:DRIVELINE:DRIVESHAFT

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.

NHTSA campaign 24V470000

Sep 12, 2019 · BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

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.

NHTSA campaign 19V654000

Jul 27, 2017 · FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

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.

NHTSA campaign 17V476000

43 owner complaints to NHTSA for the 2018 Infiniti Q50

Owner Complaints

43 owner complaints filed with NHTSA for the 2018 Infiniti Q50 (1 mention a crash, 1 a fire). See all on nhtsa.gov

Most-cited areas
Engine17
Air Bags9
Fuel/Propulsion System6
Electrical System5
Unknown Or Other5
Back Over Prevention3
A complaint can cite more than one area.
Most recent complaints
Sep 22, 2026 · Air Bags
“Systemic defect front passenger seat occupancy sensor failure triggering an illuminated airbag warning light.”
Jul 7, 2026 · Air Bags, Seat Belts
“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…”
Jun 8, 2026 · Air Bags
“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…”
May 5, 2026 · Electrical System, Back Over Prevention
“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…”
Mar 19, 2026 · Electrical System
“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…”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2018 INFINITI Q50. US-market vehicles only; data cached for up to 7 days.

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