2017 Infiniti Q50 Engine Problems

My car has a start and stop problem and the dealer reprogram the ecm but it didn't work got back on the road and almost got hit twice bc my car went into limp mode. And they won't fix up unless I pay even know it's a recall and my drive shaft has a recall but they said that was close out

The engine in this car needs to be replaced. The main bearing is failing, head gasket blew, and coolant has leaked into the engine. About August 30, 2023 I had a sudden coolant loss followed by temperature spike. If the engine had seized while driving, it could have caused a loss of power and locked up the drive train. After sitting while i tried to determine the coolant loss and temp spike, i made arrangements with a local infiniti dealer about jan 9 with a drop off date of jan 22 or 23. The dealer has confirmed the bearing, oil, coolant issue. There were no warning lights or check engine lights before the issue occurred.

I bought my q50 in 2020. In 2023 one of my turbo chargers began experiencing failure. This defect caused the car to drive in limp mode where it would not accelerate and caused a hazard to myself and other drivers on the road. The failure did not display any lights on my dash and I only came to know the component failed after the physical symptoms it presented and having it diagnosed by infinit. Infiniti has now issued an extended warranty for up to 120k miles on the part for owners with the defective turbos. The warranty letter also states that if owners previously replaced the part out of pocket they could seek reimbursement with proof of the repair and proof of ownership. I submitted my documents to Infiniti and they have since closed my case without reimbursement because they claim one of their associates made a mistake in beginning the claims process with me. I have attempted to continue to pursue reimbursement and Infiniti won’t return my calls. I know for certain my car and the turbo repairs qualify for this reimbursement. I believe Infiniti is attempting to work around officially recalling the cars impacted by the bad component and the warranty is being provided in its place however I also believe they are giving me such a hard time with this in hopes that I’ll just roll over and give up on the reimbursement

The car needed new sprockets after 105K miles. I haven't seen anyone else have this problem, so my car maybe a lemon. But just in case more people start reporting it, I just want to make sure it's on record. The dealership has no idea why they'd fail, as I have had regular, full synthetic oil changes. It's a hefty repair.

Engine failure due to porous motor and oil deprevation related to a tsb

CAMSHAFT POS SENSOR WENT OUT DURING DRIVING. CAR LOST POWER AND JERKED. HAD CAR LOOKED AT BY INDEPENDENT SERVICE STATION AND HEARD KNOCKING. BROUGHT CAR TO DEALERSHIP AND WAS DETERMINED TO HAVE A BLOWN ENGINE. WAS SPECIFICALLY TOLD THAT THE TURBOS WERE 'EATING' THE OIL AND NOT ALLOWING OIL TO FLOW TO LOWER END OF MOTOR. WHICH CAUSED FAILURE TO MAIN BEARING IN CYLINDER 3. CAR NEEDS A NEW ENGINE. SERVICE DEPARTMENT HAS SEEN THIS BEFORE WITH SAME YEAR MAKE AND MODEL OF VEHICLE

WHILE DRIVING ON A HIGHWAY (I95, SPEED 55 MPH) THE ENGINE SUDDENLY DIED, WAS ABLE TO PULL OVER AND RESTART THE ENGINE, WHICH NOW MADE A TERRIBLE MECHANIC NOISE. COULD DRIVE OFF TO A SMALLER ROAD WHERE THE ENGINE STALLED AGAIN. HAD TO TOW THE CAR TO THE DEALER, WHO ADVISED THAT THE ENGINE NEEDED TO BE CHANGED. TWO WEEKS LATER THE ENGINE WAS FINALLY CHANGED BUT NOW THIS TIME THEY STATED THAT THE TURBOS NEEDED TO BE CHANGED. THE PARTS WERE, HOWEVER, ON BACK ORDER - DEALER CANNOT SAY HOW LONG BEFORE IT CAN BE REPAIRED. AFTER 3 WEEKS AND MANY PHONE CONVERSATIONS I STILL DO NOT HAVE A CAR. THIS IS AFTER ALL A NEW (18000 MILES) >50K CAR BUT APPARENTLY IT WAS NOTHING BUT A LEMON.

I HAVE A INFINITI Q50S REDSPORT 2017 ACTUALLY HAVE 34000 MILES IN THE ODOMETER. THIS CAR HAVE A FACTORY DEFECT THAT INVOLVES ENGINE PARTS IN THIS CASE SERPENTINE BELT, BELT TENSIONER AND PULLEYS. THERE IS A TSB AT THIS TIME FOR THIS ISSUE BUT IN THE MAJORITY OF CASES THE CARS STILL SHOWING UP THE ISSUE. MAJOR ISSUE AT THIS TIME IS THAT SERPENTINE BELT BROKES WHILE CAR IS ON MOVE. THE CAR NEEDS TO BE STOPPEND SINCE ENGINE OVERHEAT AND ALSO BATERRY LIGHT GOES ON. THE BELT TENSIONER GET STUCK AND PULLEYS IN SOME OF THE CASES MELT DOWN. IN MY CASE MY CAR HAS VISITED 2 TIMES WITH THE SAME ISSUE. THERE IS A TSB THAT PRETEND TO FIX THAT ISSUE REALIGNING THE AC COMPRESSOR. AT THIS TIME THERE IS FEW HOUNDREDS MAYBEE MORE CARA AFFECTED. I THINK THIS IS A MAJOR ISSUE SINCE THE SERPENTINE BELT BROKE AND ENGINE STOP BEING FUNCTIONAL DUE OVERHEATING. THIS CAN CAUSE A MAJOR ACCIDENT OR OTHER SECURITY PROBLEM.