2016 Audi Q5 engine problems
26 owner complaints filed with NHTSA name the engine on the 2016 Audi Q5 — 34% of all complaints for this model year.
What owners report
“I am reporting a defect related to carbon buildup in the Secondary Air Injection (SAI) system on my 2016 Audi Q5 3.0L Supercharged (engine code CTUC). My vehicle has been diagnosed by an Audi dealer with DTC P0491 – Secondary Air Injection System Insufficient Flow, and restricted secondary air flow…”
filed Jan 29, 2026
“Audi had Valves and pistons fail on the highway at 75mph on Nov 28,2024 at 117000 miles Had the vehicle since 2021 and 17000 miles. Complained to the dealerships at the last 3 oil changes about excessive oil consumption. They told us not to worry about it, full aware that they had lost a lawsuit…”
filed Jan 12, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- These vehicles, equipped with 2.0l Turbo FSI engines, have an electric coolant pump that…Campaign 18V229000 · Apr 11, 2018
- These vehicles, equipped with 2.0l Turbo FSI engines, have an electric coolant pump that…Campaign 17V002000 · Jan 3, 2017
Engine problems in other Q5 years
| Year | Reports | Share |
|---|---|---|
| 2025 Q5 | 5 | 12% |
| 2024 Q5 | 1 | 5% |
| 2023 Q5 | 7 | 16% |
| 2022 Q5 | 4 | 18% |
| 2021 Q5 | 17 | 24% |
| 2020 Q5 | 4 | 16% |
| 2019 Q5 | 9 | 17% |
| 2018 Q5 | 31 | 15% |
| 2017 Q5 | 19 | 45% |
| 2015 Q5 | 38 | 38% |
| 2014 Q5 | 36 | 34% |
| 2013 Q5 | 33 | 37% |
Other reported problem areas on the 2016 Audi Q5
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.