Infiniti Q50 Reliability by YearBest & worst years, problems & recalls — NHTSA data

My vehicle was stolen by theives using some kind of device to gain access because I have both key fobs that came with the vehicle but somehow they were able to gain access and start it and drive off. I believe this is a security and safety concern for Infiniti vehicles. it should not be easy to steal a locked, secured vehicle.

Ever since I got the vehicle transmission is trying to give out on the vehicle takes too long to shift gears, takes more rpm to shift gears

Recently, the turbochargers on my vehicle failed prematurely and had to be replaced. Shortly after this repair, and with the vehicle still under 60,000 miles, the engine exploded and failed while driving. This incident posed a severe safety hazard not only to me but to other drivers and pedestrians as I lost propulsion and had to swerve to the shoulder to avoid oncoming traffic. Fortunately, no one was injured, but the sudden failure could have led to a much worse outcome as not only did it fail but hot oil and coolant both poured out of the hole in the engine creating a hazard. I believe this failure is not only unacceptable for a vehicle with such relatively low mileage, but it may indicate a systemic or design flaw, particularly if turbo and engine failure is a recurring issue among other owners of this make and model. I am aware of Infiniti’s current engine recall for select vehicles for premature engine failure and would like to know should this be extended to Q50 model.

FORWARD EMERGENCY BRAKING (FEB) ACTIVATING WHEN NOT NEEDED. JANUARY 11TH 2020 FIRST DAY OF OWNING INFNITI Q50 LUXE 3.0T NO PACKAGES, ONLY FEB (WHICH IS STANDARD ON ALL Q50 NOW) DRIVING HOME FROM KELLY INFINITI OF DENVERS, MA DEALERSHIP. ALLEN RD EXTENTION - SPEED LIMIT 30MPH, SLIGHTLY WINDY ROAD, WET, POSSIBILITY OF BLACK ICE. ALL OF A SUDDEN, WITH NOT A SINGLE CAR AHEAD OF ME AND NO CARS GOING TOWARD ME - CAR STARTS TO BRAKE LIKE COLLUSSION TO SOME IMAGINARY OBJECT IS UNAVOIDABLE. WAS ABLE TO STAY ON THE ROAD. FEW DAYS AFTER THAT - DRIVING FROM NASHUA, NH TO MY HOUSE AT 159 ALLEN RD BY HIGHWAY RT 3 (55 MPH). DRIVING IN THE MIDDLE LANE, SWITCHING INTO THE LEFT LANE TO PASS SLOW MOVING CAR IN MIDDLE LANE. THERE ARE TWO CARS IN THE LEFT LANE AND PLENTY OF SPACE IN BETWEEN THEM. DISTANCE TO THE CAR AHEAD OF ME IN LEFT LANE IS ABOUT 10-12 YEARDS. TO THE CAR BEHIND - 15-20 YEARDS. ALL OF A SUDDNE WHEN I ALREADY MOVED INTO THE LEFT LANE CAR STARTS TO BRAKE LIKE THERE IS NO TOMORROW, CAR BEHIND ME ALMOST REAR ENDED ME. WHAT WAS WORSE - THE PERSON IN THAT CAR THOUGHT I DID THAT ON PURPOSE AND CRAZY PERSON STARTS TO CHASE ME SITTING DANGEROUSLY CLOSE TO MY REAR BUMPER. THEN HE/SHE PASSES ME AND HITS THE BRAKES IN FRONT OF ME - I BARELY AVOIDED REAR ENDING THAT CAR AT HIGHWAY SPEED. FRIDAY JANUARY 24TH 2020 DRIVING ON RT 3 (SPEED LIMIT 55MPH) DRIVING IN THE RIGHT LANE, SLOW MOVING TRUCK IN FRONT OF ME, CHANGING LANE TO THE LEFT (MIDDLE LANE), IN THE PROCESS OF PASSING THE TRUCK - ALREADY DRIVING BY THE TRUCK'S SIDE - ALL OF A SUDDNE CAR STARTS TO BRAKE SO HARD THAT CAR STATS TO SWAY AND I SEE IN THE RIGHT REAR VIEW MIRROW THAT TRUNK OF MY CAR IS UNDER THE TRUCK. MIRCIOUSLY I WAS ABLE TO MANAGE TO ESCAPE THIS SITUATION. THIS CAR WITH THIS TECHNOLOGY IS UNSAFE TO DRIVE, IT WILL CAUSE MORE ACCIDENTS THAN PREVENT.

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.

Air bags failed. Auto has 28,000 miles and has no accidents. Warning light showed that airbags were not working June 2026. Auto brought to dealer, and it is a very costly job to fix. Auto just out of warranty in years not miles. Infiniti in previous years has had a recall on their cars, but not my VIN number for failing airbags. This is a manufacturing defect, and it should not have to cost me. Infiniti has offered a partial discount.

own a 2019 Infiniti Q50 3.0t Sport with approximately 80,000 miles. The vehicle began experiencing engine knocking/ticking noises, rough idle, hesitation under acceleration, shaking, and intermittent misfire symptoms. The issue continued even after replacing spark plugs and ignition components. The dealership/mechanic reported possible internal engine damage and metal shavings in the oil, indicating potential failure of internal engine components. The vehicle has been regularly maintained with oil changes completed on schedule. This appears to be a widespread issue affecting many Infiniti and Nissan vehicles equipped with the VR30 3.0 twin-turbo engine. Numerous owners online report similar symptoms including engine knocking, turbo failure, metal contamination, loss of power, and premature engine failure at relatively low mileage. The issue creates a serious safety concern because the vehicle can lose power, hesitate during acceleration, or potentially fail while driving in traffic or on highways. I am requesting that NHTSA investigate repeated engine failures involving the VR30 engine platform used in Infiniti Q50/Q60 and related vehicles.”

While operating the vehicle under normal driving conditions, the engine experienced a significant loss of power and reduced acceleration. The issue is believed to be related to turbocharger failure within the engine system. The loss of power created a safety concern, particularly when attempting to merge into traffic and maintain highway speeds. The vehicle did not respond as expected when acceleration was needed, which could increase the risk of an accident in certain driving situations. The problem has been confirmed by a dealership service department, and the vehicle is currently available for inspection. The diagnosis indicates that the turbochargers require replacement. Prior to the failure, there were limited warning signs. Any warning indicators were either minimal or appeared shortly before the issue became noticeable. The failure occurred at approximately 107,000 miles. Based on publicly available information, similar failures have been reported on this vehicle model, suggesting a possible pattern related to the turbocharger system.

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 expensive to repair. Infiniti knows there is a problem regarding turbo failure in the Infiniti Q50 and the consumer is forced to deal with expensive repairs $7K for one turbo per the dealership. Had I been made aware of there being a problem, I would not have purchased an Infiniti.

See attached document for complaint.

Shortly after purchasing the vehicle, I began experiencing serious performance issues. While driving, the vehicle suddenly lost power, would not accelerate properly, and warning lights appeared on the dashboard. The vehicle eventually shut off while in operation. The vehicle was inspected by a dealership, which initially stated there were no issues. However, the problem continued and worsened. The vehicle was then inspected by an authorized Infiniti dealership, where technicians identified a consistent knocking noise coming from the engine. The dealership indicated that the noise is consistent with internal engine damage and recommended further inspection and likely engine replacement. The issue developed very shortly after purchase, and there were no prior indications that the vehicle had been damaged or misused. The sudden loss of power and engine failure created a potential safety hazard, especially while driving in traffic, as the vehicle was unable to accelerate and could have led to a dangerous situation. The vehicle is currently available for inspection, and the issue has been confirmed by a certified dealership. The cause of the failure is currently under further evaluation.

While driving, my vehicle suddenly shut off without warning. After restarting, the vehicle would not accelerate over 40 miles per hour. I had the vehicle inspected by the dealership, and they informed me that the engine oil filter contained metal debris. The dealership explained that the presence of metallic particles in the filter could indicate internal engine wear or damage, and they recommended a full engine replacement at a cost of approximately $20,000. At this time, I have not been shown the filter or the debris, but I was advised that this condition may require further diagnosis and possible engine repair or replacement.

The contact owns a 2019 Infiniti Q50. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated, with an abnormal knocking sound coming from the vehicle. The vehicle was turned off; however, while attempting to restart the vehicle, the abnormal knocking sound persisted. The vehicle was towed to the dealer, where it was diagnosed with engine and turbocharger failure. The contact was informed that the engine and the turbochargers needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 67,500.