Table 1 shows one common other fuel system related problems of the 2021 Audi Q3.
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System problems |
I am reporting a recurring fuel system defect affecting my Audi Q3, consistent with safety recall 20yf – suction jet pump. The problem began as difficulty refueling and now mirrors an identical issue I experienced with a previous Audi a3, which ultimately leaked fuel severely both while driving and when parked. That incident put me and my passengers in danger and caused breathing difficulties from fumes. The Q3 now shows the same early signs — gas pump shutoff, failed refueling attempts, and multiple $200 credit card holds at stations without fuel entering the tank. Audi replaced the tank in 2024, but the issue returned. This is not an ordinary maintenance issue — it is a serious safety hazard. Audi’s solution has been to keep replacing the part, while denying a vehicle replacement or compensation. They redirected me to bbb, but I felt it was necessary to report this publicly. If the gas leak recurs, it could lead to fire or poisoning. The fuel system should not fail like this, and I want to ensure no one else faces this danger. If anything happens to me as a result, I will pursue further legal action.
The car stalled while driving. There were no warning lights or indicators before the failure. The car was unable to be restarted so it was towed to a mechanic. It was discovered the car was out of gas however the gauge read there was still a lot of gas in the tank. We then took the car to an Audi service center and they informed us it was one of the gas tank sensors that was faulty. They replaced the first sensor and charged us $1k and that didn’t fix the problem so they contacted Audi and were told it was a faulty second sensor inside the gas tank and the only fix is to replace the whole tank. We opted not to replace the tank at this time. After further research I found that the sensor we had replaced is recalled on other Audi models of the same year recall #22v155 I believe more investigation and recall is needed to include the q series Audis as well as further investigation into the gas tanks internal sensor that requires a replacement of the whole system.
1. The car completely stopped on the mass pike in newton (major highway)—could not get it past 65, then it started DE-accelerating and came to a 100% stop. After turning off and on, I was able to get it off the pike and drive under 30mph (with several stalls) to cambridge on back roads. 2. 12/22 the auto stop engaged when I wasn't at a complete stop. I had to manually start the vehicle by putting it in park and starting again. Once it did, there was a lot of lag. 3. In rolling traffic under 10 mph, the accelerator does not engage for a few seconds when lightly touched in order to inch forward. Once it does, the car lurches forward.
Vehicle has a starting error. Dealer fixed p085 with the park neutral module but problems comes back. At stop light vehicle shut down and when brake was released there was a error starting it back up again. Had to put vehicle in park and start it again.