2016 Audi A6 Fuel System Problems

I own a 2016 Audi A6 3.0T. After filling the fuel tank completely, the vehicle only traveled approximately 190–200 miles before the fuel gauge indicated empty. This represents a sudden and significant loss of fuel range compared to normal operation. There are no warning lights, check engine lights, fuel smells, visible leaks, rough idle, or abnormal noises. The vehicle operates normally otherwise. The issue appears to involve excessive fuel consumption or incorrect fuel management without any driver warning. This condition poses a potential safety risk because the vehicle may unexpectedly run out of fuel while driving, which could result in loss of power in traffic or on highways, increasing the risk of an accident. The issue has been observed repeatedly after refueling. At the time of this report, the vehicle has not yet been inspected by a dealer or independent repair facility, but diagnostic evaluation is planned. Based on owner research and symptoms, the issue may be related to a fuel system, engine management, or emissions-related component malfunction that does not trigger a warning indicator. No prior warning messages or lamps were displayed before or during the occurrence.

I’ve stated to dealer I’ve been having ongoing problems with my vehicle and they failed to fix the issue , while refueling the fuel nozzle stops and fuel spills. They said it’s safe to drive it’s just a sensor that needs to be moved

The contact owns a 2016 Audi A6. The contact stated that while refueling, the gas nozzle would frequently stop, causing gasoline to leak from the vehicle. The vehicle was taken to a dealer where it was discovered that the fuel tank sensor needed to be moved to another location on the vehicle. The contact was provided an estimate for the repair; however, the contact declined to seek a second opinion. The contact was assured by the dealer that the vehicle was safe to be driven. A few days after leaving the dealer, the vehicle stalled while driving at a slow speed, with the check engine warning light illuminated. Due to the failure, the vehicle was towed back to the dealer who discovered that fuel had filled up in the evaporation canister sensor which caused the fuel tank and the fuel pump to become defective. The manufacturer was notified of the failure but informed him that his vehicle was not under recall or warranty. The vehicle had yet to be repaired and remained in the possession of the dealer. The failure mileage was approximately 48,000.

The contact owns a 2016 Audi A6. The contact stated that the vehicle had shuddered and failed to accelerate on several occasions. There was no warning light illuminated. Additionally, the contact stated while driving at an undisclosed speed, the vehicle emitted an abnormal sound. The vehicle was taken to an independent mechanic where it was diagnosed that the spark plugs and the fuel rails needed to be replaced. The spark plugs were replaced. However, the fuel rails were not replaced. An unknown dealer was notified of the failure and an appointment was scheduled. The dealer also informed the contact of prior recall repairs that had been completed on the vehicle. The vehicle was not repaired. The manufacturer was made aware of the failure and informed the contact that they could not assist as the VIN was not included in any recalls. The failure mileage was 70,240.

AUDI RECALLED 2012-2015 A6 CARS WITH THE 2.0L TFSI ENGINE, ALONG WITH OTHER AUDI MODELS, DUE TO FAULTY COOLANT/WATER PUMP (NHTSA RECALL # 18V-229 MFG RECALL #19N3/19N4). FOR THE A6, THE BRACKETING WAS FOR CARS BUILT FROM 4/4/2011 - 12/22/2014. THE BRACKETING FOR OTHER MODELS IMPACTED BY THE RECALLED VARIED FROM 2012-2017. MY A6 2.0 WAS BUILT IN FEB 2015, BUT WAS CLASSIFIED AS A 2016 MODEL. ON 8/28/2019 MY CHECK ENGINE LIGHT TURNED ON. I TOOK THE CAR INTO MY AUDI DEALERSHIP FOR SERVICING. THE TECHNICIAN STATED THAT I HAD A DEFECTIVE COOLANT/WATER PUMP, AND THAT THE PUMP WAS ABOUT TO BURST AND NEEDED IMMEDIATE REPLACEMENT. I WAS AWARE OF THE RECALL, AND ASKED IF THE PUMP ON MY CAR WAS SIMILAR TO THE PUMPS COVERED UNDER THE RECALL, WHICH THEY CONFIRMED THE PUMP PART NUMBER ON MY CAR MATCHED THE PUMP PART NUMBER THAT WAS BEING RECALLED. HOWEVER, SINCE MY CAR WAS CLASSIFIED AS A 2016, IT WAS NOT COVERED UNDER THE RECALL. IT APPEARS THAT THE BRACKETING THAT WAS USED TO DETERMINE WHICH CARS SHOULD BE COVERED UNDER THE RECALL WAS NOT BROAD ENOUGH FOR THE A6 MODELS, AS IT APPEARS THAT THE DEFECTIVE PUMPS WERE ALSO USED ON SOME 2016 A6 MODELS OR CARS BUILT AFTER 12/22/2014.

2016 AUDI A6. CONSUMER WRITES IN REGARDS TO FUEL RAILS SAFETY RECALL. *LD THE CONSUMER STATED THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME TO COMPLETE THE RECALL REPAIR. *JS