Table 1 shows one common power train related problems of the 2018 Infiniti Q50.
| Problem Category | Number of Problems |
|---|---|
| Power Train problems |
Filing this complaint regarding a safety-related defect involving the turbocharger system on my 2018 Infiniti Q50. The vehicle has approximately 46,000 miles and is 8 years old. Infiniti/Nissan has acknowledged through its own technical service bulletins (tsbs) that turbocharger failure on 2016–2018 Q50 3. 0t vehicles is a known defect. Nissan’s documentation identifies issues such as turbo oil seal leaks, reduced engine power, smoke, and potential catastrophic engine failure, and provides an extended warranty of up to 10 years or 120,000 miles due to the safety risks associated with sudden power loss. My vehicle experienced turbocharger failure consistent with these known defects, resulting in loss of engine power, which presents a serious safety hazard, particularly during highway driving, merging, or intersections. Sudden loss of propulsion increases crash risk and endangers vehicle occupants and others on the road. In some cases, turbo failure can occur with little or no warning, further increasing risk. The failure was confirmed by Infiniti/Nissan service departments, and the vehicle remains available for inspection. Carmax insurance approved the engine repair, acknowledging mechanical failure; however, they declined to approve turbocharger repair specifically because Infiniti has issued a known TSB and extended warranty covering turbo failure, deferring responsibility to the manufacturer. Despite the vehicle being within the extended warranty limits, Nissan denied coverage, claiming the vehicle has a “branded title. ” this claim is unsupported by VIN reports, the loan originator, and carmax’s own title search prior to leasing all confirm the title is not branded. Nissan has provided no documentation supporting its assertion. Nissan n. A. Reviewed and closed the matter despite the known safety defect and lack of evidence for the title claim. Represents a safety-related defect and improper denial of a manufacturer-recognized safety remedy, warranting NHTSA review.
Car has white smoke coming from the exhaust and the oil level keeps decreasing. Car stalls and takes time to accelerate p0106 code pops up from engine. There’s a rattle and whine noise coming from the engine bay. Also the gas was stuck accelerating. Had to switch the car to neutral so it does continue accelerating. After switching to neutral I was able to decrease power to the wheels and had to pull over on the road.
I was driving down the highway and my car started to shut down and started to make a knocking sound inside the engine bay, putting at risk other drivers, so I turned on my hazards and pulled to the shoulder of the road,the car wouldn’t turn on so I called a tow truck. Took the car to dealer and stated engine is seized.