2019 Audi A6 engine problems
31 owner complaints filed with NHTSA name the engine on the 2019 Audi A6 — 27% of all complaints for this model year.
What owners report
“My 2019 Audi A6 was diagnosed with catastrophic internal engine failure on May 9, 2026 at Audi of Newton, Newton, NJ, at 93,645 miles. The vehicle required a full engine rebuild performed by REV Auto NJ at a cost of $12,000. The failure involved metal debris found in the engine oil, consistent with…”
filed Jul 8, 2026
“I recently brought my 2019 A6 to Nyack Audi for an unrelated repair, after performing their complimentary inspection the service advisor told me my water pump was leaking coolant into the vacuum hose system; and the pump, PCV valve, sensors, solenoids and vacuum hose system need to be replaced…”
filed Jun 15, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
TSB_2074640_3 · Service Bulletin/Repair Instructions · issued Jun 26, 2026
Engine problems in other A6 years
| Year | Reports | Share |
|---|---|---|
| 2020 A6 | 1 | 4% |
| 2017 A6 | 4 | 20% |
| 2016 A6 | 17 | 33% |
| 2015 A6 | 6 | 27% |
| 2014 A6 | 5 | 12% |
| 2013 A6 | 15 | 29% |
| 2012 A6 | 13 | 22% |
| 2011 A6 | 2 | 10% |
| 2008 A6 | 2 | 3% |
| 2007 A6 | 2 | 4% |
| 2006 A6 | 4 | 6% |
| 2005 A6 | 4 | 4% |
Other reported problem areas on the 2019 Audi A6
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.