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EnginePart report

2019 Infiniti Q50 Engine Problems

Complaints
10about this part
Share
33%of 30 total for the year
Median mileage
67,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 10 complaints about the engine of the 2019 Infiniti Q50, 33% of the 30 complaints for this model year. Where a mileage was given, the median is 67,500 miles. 1 of these say a crash was involved, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Unintended acceleration. Pulling into a parking space in a shopping center parking lot, after going over a speed bump and making a left hand turn into the spot the car accelerated and would not stop. Pushing on the brakes did not work. Car has a system to prevent crashing in to an object in front of the car but that did not work. The car struck a pole in the parking lot doing significant damage to the right front of the car.”

NHTSA complaint #11268861, filed 2019-10, 2,000 miles

“While driving, my vehicle suddenly shut off without warning. After restarting, the vehicle would not accelerate over 40 miles per hour. I had the vehicle inspected by the dealership, and they informed me that the engine oil filter contained metal debris. The dealership explained that the presence of metallic particles in the filter could indicate internal engine wear or damage, and they recommended a full engine replacement at a cost of approximately $20,000. …”

NHTSA complaint #11682053, filed 2025-08

“The twin turbo failure is a known issue with Infiniti. I took my vehicle to the dealership and it was diagnosed with having a passenger side turbo failure. I have 145K miles on my vehicle. It is outside of the warranty period and very expensive to repair. Infiniti knows there is a problem regarding turbo failure in the Infiniti Q50 and the consumer is forced to deal with expensive repairs $7K for one turbo per the dealership. Had I been made aware of there being a problem, I would not have purchased an Infiniti.”

NHTSA complaint #11730686, filed 2026-04

“The contact owns a 2019 Infiniti Q50. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated, with an abnormal knocking sound coming from the vehicle. The vehicle was turned off; however, while attempting to restart the vehicle, the abnormal knocking sound persisted. The vehicle was towed to the dealer, where it was diagnosed with engine and turbocharger failure. The contact was informed that the engine and the turbochargers needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. …”

NHTSA complaint #11676585, filed 2025-07, 67,500 miles

“The contact owns a 2019 Infiniti Q50. The contact stated while driving at an undisclosed speed, the engine misfired, and the contact became aware of smoke coming from the engine compartment. The check engine and battery warning lights were illuminated. The contact was able to pull the vehicle over to the side of the road. The contact stated while the vehicle was parked and turned off, there was coolant leaking underneath the vehicle. The vehicle was towed to the dealer where it was diagnosed that the timing belt had failed and needed to be replaced. The vehicle was repaired. …”

NHTSA complaint #11622313, filed 2024-10, 71,500 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2021117%
20191033%
20181739%
20171727%
20161026%
201597%
2014127%

Other parts of the 2019 Infiniti Q50

Electrical system
6 complaints
Other or unknown
6 complaints
Transmission and drivetrain
6 complaints
Fuel system
4 complaints
Steering
4 complaints
Suspension
4 complaints
Vehicle speed control
4 complaints
Air bags
2 complaints
Brakes
2 complaints
Engine cooling
2 complaints
Exterior lighting
1 complaints
Forward collision avoidance
1 complaints

← All problems reported for the 2019 Infiniti Q50

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology