Infiniti Q50 Engine Problems
96 owner complaints filed with NHTSA across 8 model years.
Complaints by Year
Worst year: 2017. Best year: 2020.
Owner Reports
A representative sample of complaints filed with NHTSA.
The contact owns a 2015 Infiniti Q50. The contact stated that while driving approximately 50 MPH, the vehicle began to overheat and smoke was present coming from under the hood. After stopping to inspect the vehicle the contact opened th...
The contact owns a 2017 Infiniti Q50. The contact stated that while his son was driving at approximately 45 mph, the vehicle shut off without warning. Due to the failure, his son lost complete control of the vehicle and drove into a ditc...
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....
THE CAR CAUGHT FIRE UNDER THE HOOD AND COMPLETELY BURNED UP IN THE PARKING LOT AS I WAS EXITING THE VEHICLE UPDATED 12/4/18*JB
YOUR FORM DOESN'T WORK FOR ME. ALL SYSTEMS WERE AFFECTED. I TOTALED MY CAR WHILE DRIVING UP A HILL, IN CRUISE CONTROL, AND I HIT A PUDDLE. THE CAR ACCELERATED INTO THE MEDIAN. I WAS NO LONGER A DRIVER; I WAS A PASSENGER.
I LIVE IN A ONE FAMILY HOUSE WITH AN ATTACHED GARAGE. MY WIFE PARKED THE CAR,WITH 1/3 OF A TANK OF GAS,IN OUR GARAGE ABOUT 6:30 PM ON AUGUST 17. SHE THOUGHT SHE HAD PUSHED THE BUTTON TO TURN OFF THE ENGINE, AND EXITED THE CAR TAKING T...
In August 2026, while driving, the vehicle suddenly lost acceleration and engine power and would only travel at a very slow speed. The check engine light came on. The driver had to safely stop, turn the engine off, and restart it. After ...
The contact owns a 2021 Infiniti Q50. The contact stated that while driving approximately 70 - 80 MPH and attempting to accelerate, the vehicle would accelerate but failed to exceed 10 MPH. The accelerator pedal had to be depressed to t...
Early turbo failure should be extended to newer vehicles not only up to 2018. I am experiencing turbo failure and there is no extended warranty for this repair.
Something happened to cause power loss. I checked the recalls and work that was supposed to be performed but didn’t get done like it was supposed to. I need to have it checked now asap! I see 2 engine replacements and also the turbos a...
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...
See attached document for complaint.