This page covers 3 recalls, 41 owner complaints and EPA fuel economy for the 2018 Infiniti Q50.
22–29 mpg combined
8.1–10.7 L/100km
Midsize Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 6 tested variants for this model year.
Engine complaints dominate the 2018 Q50 filing record, with turbocharger issues appearing most frequently. Owners commonly report oil leaks from the turbo system, which can lead to oil burning and visible smoke from the exhaust. Several owners also describe problems following turbo-related repairs, including serpentine belt contamination from residual oil that caused belt slippage and failure, resulting in sudden loss of engine functions. Wheels and airbags each show a small cluster of complaints but at notably lower volume. The engine complaints span a range of mileages, with some owners reporting turbo-related symptoms around 46,000 miles. Oil leaks feeding into adjacent belt and accessory systems is the most specific recurring symptom pattern owners describe.
41
Total Complaints
1
Crash-Related
1
Fire-Related
By System
The 2018 Infiniti Q50 has 3 recalls, the most serious being a driveshaft that can fatigue and break, causing sudden loss of drive power or allowing the vehicle to roll away when parked without the parking brake applied.
On 2.0L-equipped models, a software error in the fuel pump control module can allow the main fuel tank to run too low to supply the engine, causing a stall while driving. There is also a backup camera recall where the camera image may fail to display when reversing, reducing visibility behind the vehicle.
At a glance
What can fail
The driveshaft can develop fatigue cracks and break, potentially causing loss of power to the wheels.
What the fix does
The driveshaft will be replaced at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
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Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
At a glance
What can fail
The backup camera display settings can be changed so the rear view image disappears. The system saves this setting, so the rear view remains hidden when you shift into reverse.
What the fix does
Dealers will update the backup camera software settings at no cost to restore proper rear visibility functionality.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fuel pump control software may incorrectly read the fuel tank level, allowing it to drop too low to supply the engine, causing the engine to stall while driving.
What the fix does
Infiniti dealers will reprogram the fuel pump control module software with a corrected version at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
