2019 Audi Q8 power train problems
43 owner complaints filed with NHTSA name the power train on the 2019 Audi Q8 — 40% of all complaints for this model year.
What owners report
“Due to a leak in the rear axle that is connected to the differential, it caused the entire differential to fail. The bearing within the differential completely failed due to contaminated oil. The Q8s are known to have this occur but only in year models 2020-2022. My Q8 is a 2019 and Audi is aware…”
filed Jan 19, 2026
“While driving warning light came on electrical malfunction on highway cat lost all power following a series of light’s indicting multiple malfunction then transmission disengaged I was able to coast to a stop , was unable to get out of vehicle due to car not unlocking”
filed Nov 23, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Q8 years
| Year | Reports | Share |
|---|---|---|
| 2021 Q8 | 4 | 14% |
| 2020 Q8 | 2 | 8% |
Other reported problem areas on the 2019 Audi Q8
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.