2025 Audi Q3

While driving my brand new 4-day old 2025 Audi Q3 at highway speeds, the vehicle suddenly lost engine power and shut off without warning. At the time of the incident the fuel gauge indicated approximately 1/4 tank remaining and there were no prior warnings. I was forced to pull over in traffic, creating a dangerous situation. The vehicle had to be towed to the dealership. I was initially told the vehicle had "run out of gas", despite the fuel gauge showing fuel remaining. This same failure occurred a second time under similar conditions, again while driving at highway speeds with fuel indicated on the gauge. The vehicle stalled and shut off unexpectedly, requiring another tow. During the second repair visit, Audi technicians confirmed that the fuel tank's internal level sensor was defective and that the vehicle was inaccurately reporting fuel levels. Audi's Technical Assistance Center instructed the dealer to replace the entire fuel tank assembly on this brand-new vehicle. This defect caused repeated loss of engine power while driving, creating a serious safety risk to myself and other motorists. I no longer feel the vehicle is safe to operate due to the risk of sudden stalling without warning.