2021 Audi Q7 engine problems
19 owner complaints filed with NHTSA name the engine on the 2021 Audi Q7 — 26% of all complaints for this model year.
What owners report
“I have heard a knocking and experienced sudden loss of power while driving- not electrical loss, but vehicle suddenly slows down and unable to pick back up speed effectively creating a safety concern when driving- especially at on ramps. A warning light comes on and then it will go off randomly…”
filed Sep 15, 2026
“waterpump is leaking- known issue that is currently being investigated for class action lawsuit. My car is now out of warranty.”
filed Aug 11, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Q7 years
| Year | Reports | Share |
|---|---|---|
| 2020 Q7 | 7 | 26% |
| 2019 Q7 | 5 | 8% |
| 2018 Q7 | 38 | 27% |
| 2017 Q7 | 60 | 19% |
| 2015 Q7 | 12 | 27% |
| 2014 Q7 | 10 | 22% |
| 2013 Q7 | 11 | 27% |
| 2012 Q7 | 8 | 28% |
| 2011 Q7 | 2 | 9% |
| 2010 Q7 | 5 | 17% |
| 2009 Q7 | 3 | 14% |
| 2008 Q7 | 2 | 6% |
Other reported problem areas on the 2021 Audi Q7
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.