2017 Infiniti Q50: Engine complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 17 owner complaints for the 2017 Infiniti Q50 that list the engine component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11739745 (filed 05/23/2026): “I have had several major problems with this car's engine. once it shut down (was detecting no oil but was full) while on the interstate. had to replace the radiator fan assembly and module. coolant leaks…”
- NHTSA complaint ODI #11700285 (filed 11/19/2025): “My vehicle has been stalling and burning/leaking oil internally for some time now with white smoke coming from the rear. well infiniti sent a post card and stated that the emission warranty is extended for 120,000 miles which my vehicle has had the issue for some time and it was already over 120k m…”
- NHTSA complaint ODI #11696710 (filed 10/31/2025): “The engine and turbo system failed in my 2017 infiniti q50 signature edition (vin [xxx] ). the vehicle remains at carmax naperville, where it has been since march 2025. internal repair orders show carmax performed two failed inspections in august 2020 before selling the vehicle as “carmax certified”…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .