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Fuel systemPart report

2016 Infiniti QX50 Fuel system Problems

Complaints
3about this part
Share
16%of 19 total for the year
Median mileage
32,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the fuel system of the 2016 Infiniti QX50, 16% of the 19 complaints for this model year. Where a mileage was given, the median is 32,000 miles. 2 a fire, 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.

“Fuel gauge inaccurate - when filled it shows about 306 mile range, I.e. About 15.2 mpg for the 20 gal tank. After driving for 20-30 miles it shows 360 mile range which is more accurate - whether stationery or moving. The fuel economy indicator shows 18.8 mpg in this example. On the freeway the indicator may show 21.0 mpg but the same problem is there.”

NHTSA complaint #11217113, filed 2019-05, 32,000 miles

“so after my initial report about my engine catching fire on the highway, I received an invoice for $5,000 for a used engine with 80k miles on it; plus another $2800 for the service fee. I already put down about $3900 for the engine repair. The mechanic sent me pictures of the engine with the holes on it that caused the damage (or the holes might have happened during the fire). …”

NHTSA complaint #11594280, filed 2024-06

“There are 2 check engine codes that came up as an issue for my vehicle, out of the blue: P0720 and P0500. I reached out to my mechanic and he couldn't fix it. So my plan was to take it to the dealership at the end of this month; however, while driving the vehicle back from my sister's house, the bottom of the car caught on fire and I had to pull over to jump out the car with my children. Called 911. The police and fire dept came, but the fire had gone out by that time, so the officer had the vehicle towed off the highway. Looked into the issue online and apparently it's very common. …”

NHTSA complaint #11588477, filed 2024-05

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2024120%
202125%
202013%
201964%
2016316%

Other parts of the 2016 Infiniti QX50

Other or unknown
6 complaintsEngine
5 complaintsElectrical system
4 complaintsAir bags
3 complaintsTransmission and drivetrain
3 complaintsVehicle speed control
3 complaintsBrakes
1 complaintsSeats
1 complaints

← All problems reported for the 2016 Infiniti QX50

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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