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Engine coolingPart report

2019 Infiniti QX50 Engine cooling Problems

Complaints
32about this part
Share
22%of 145 total for the year
Median mileage
87,000miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 32 complaints about the engine cooling of the 2019 Infiniti QX50, 22% of the 145 complaints for this model year. Where a mileage was given, the median is 87,000 miles. 1 recall campaign on record is filed under a similar system.

Example complaints

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

“The contact owns a 2019 Infiniti QX50. The contact stated that while driving 70 MPH, the vehicle stalled; however, the contact was able to pull off the highway safely to a safe place. There was an abnormal burning odor coming from the vehicle. The oil pressure warning light was illuminated. The vehicle was towed to an independent mechanic and was diagnosed with a seized engine. The vehicle was later towed to dealer to see if the failure was associated with NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling). …”

NHTSA complaint #11766956, filed 2026-09, 94,000 miles

“The contact owns a 2019 Infiniti QX50. The contact stated that while driving 60 MPH, there was an abnormal knocking sound coming from the vehicle with the check engine warning light illuminated. The vehicle was taken to two separate dealers. The vehicle was later towed to an independent mechanic, and a diagnostic test was performed and diagnosed with engine failure. Upon investigation, the mechanic discovered NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling); which the contact linked to the failure. …”

NHTSA complaint #11690569, filed 2025-09, 81,000 miles

“The contact owns a 2019 Infiniti QX50. The contact stated that while operating the vehicle, there was an abnormal whining sound coming from the engine compartment. The vehicle hesitated and shuddered while attempting to accelerate. The vehicle was taken to the local dealer who diagnosed that the whining sound was caused by a faulty VTC actuator, and the actuator needed to be replaced. The vehicle was not repaired. The contact later received a recall letter for NHTSA Campaign Number: 25V437000 (ENGINE AND ENGINE COOLING). …”

NHTSA complaint #11684722, filed 2025-09, 95,000 miles

“The contact owns a 2019 Infiniti QX50. While driving at an undisclosed speed, there was an abnormal sound coming from the engine compartment. There was no warning light illuminated. The vehicle was taken to the dealer; however, the contact was informed that parts were not yet available. The contact was advised to call back to schedule an appointment for a later date. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The contact received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling). …”

NHTSA complaint #11722217, filed 2026-03, 69,000 miles

“The contact owns a 2019 Infiniti QX50. The contact stated while driving 40 MPH, the vehicle experienced a temporary reduction in engine power. The contact was able to pull over to the side of the road. The contact stated that the check engine warning light was illuminated. The failure became persistent with significant reduction in engine power while attempting to accelerate. The vehicle was taken to the dealer, who diagnosed that the variable compression actuator had failed and needed to be replaced. The vehicle was not repaired. …”

NHTSA complaint #11673639, filed 2025-07, 49,000 miles

Related recalls

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202216%
2021717%
2020412%
20193222%

Other parts of the 2019 Infiniti QX50

Engine
57 complaintsOther or unknown
20 complaintsElectrical system
17 complaintsForward collision avoidance
17 complaintsTransmission and drivetrain
17 complaintsBrakes
11 complaintsVehicle speed control
7 complaintsFuel system
6 complaintsSeats
5 complaintsSteering
3 complaintsBody and structure
3 complaintsBack-over prevention (rear camera)
2 complaints

← All problems reported for the 2019 Infiniti QX50

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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