2019 Audi Q8 problems

“I am reporting a serious and recurring safety issue involving my 2019 Audi Q8. The vehicle has experienced repeated engine system malfunctions that have ultimately resulted in complete engine shutdown while driving. The first incident occurred when the vehicle would not start and displayed an “Engine System Malfunction” warning. I was able to get the vehicle operational and bring it to the dealership, where the fuel pump was replaced. Just three days after the repair, the same problem returned, requiring the vehicle to be towed back to the dealership. The dealership cleared the diagnostic code and kept the vehicle for approximately three weeks before returning it to me, stating that the issue had been resolved. A few days after receiving the vehicle back, the malfunction occurred again. This time, the engine completely shut off while I was driving at highway speeds. This created an extremely dangerous situation, as the sudden loss of engine power at highway speeds presents a significant risk of a crash, particularly in traffic or while attempting to maneuver out of danger. The vehicle is currently completely inoperable, and the underlying issue remains…”

“Engine overheated and dash warning light did not illuminate until coolant was completely overheated. i followed the light, pulled off the road and let the engine idle until the light when away as directed and proceeded to drive approx 10 miles total distance to work from first warning light to full engine failure with electrical system failure due to being melted and three of my cylinders were misfiring. Audi states i need a full engine replacement at my expense and is not taking ownership of failed warning system. Engine for car quoted 25-30k for replacement. total car value with approx. 80k miles is 17k. Absolutely ridiculous.”

“NHTSA Vehicle Safety Complaint – 2019 Audi Q8 Prestige, 3.0L Turbocharged V6 I am reporting a serious engine defect involving piston damage and cylinder wall scoring in my 2019 Audi Q8 Prestige equipped with the 3.0L turbocharged EA839 engine. Audi of America has previously acknowledged a piston-skirt concern affecting certain vehicles equipped with this engine and issued U82 warranty-extension letters to affected consumers, extending piston-skirt coverage to 8 years or 80,000 miles. Despite this known concern, my vehicle has developed significant internal engine damage requiring major repairs. I initially reported an abnormal engine knocking noise to an authorized Audi dealership during the original factory warranty period, at approximately 47,000 miles. The dealership advised me that this noise was normal and did not correct the underlying condition. On August 25, 2026, at approximately 78,910 miles, I again contacted Audi regarding the engine concern. The earliest available dealership appointment was September 7, 2026. By the time the vehicle was inspected, its mileage had exceeded the 80,000-mile warranty-extension threshold. Audi Loves Park subsequently…”

“engine begin to misfire and felt like it was ready to stall. within a minute of the misfiring the engine light came on. i was in the middle of highway struggling to get my vehicle to the dealership where purchased which thankfully was only 5mins away. tech heard noise coming from fuel pump near the engine and recommended replacing along with spark plug. after replacing tech advised me to take my vehicle to audi to perform a software update that will correct the misfire and prevent the MIL from illuminating. Got that done to only be presented with a knocking noise again a month or two later. Took my car back to Audi to run a full diagnostic to find out my engine is in early engine failure due to metal shavings in the oil filter. tech states shavings in the oil could originate from the fuel pump failure and the debris would have traveled into the engine oil causing critical damage to the engine.”

“There is helicopter type of noise coming from fuel pump and it’s increasing while driving very annoying and i feel steering is loose and I notice on google same problem with so many Audi q8 and sq8”

“I was driving home from work when all of a sudden I got error messages: Electrical system malfunction! Please contact service; Start/ stop system: malfunction! Function unavailable. Please contact Service, yellow battery light and the car died. None of the safety features, locks, engine, or air condition worked and the car had to be towed to the dealership. Within 1 mile of the lights appearing the car died, putting my safety and those on the road at risk. I left in the middle of the street and had it towed a few hours later. I spoke to the dealership and was diagnosed and confirmed as a alternator- starter-generator issue and reading the Audi threads it is a common issue. The car has about 38,000 miles. I am the second owner and have had the car for less than 6 months and it has been well maintained.”