2015–2025 · 10 model years · 12 recalls
We don't rate the Audi S4 yet, because we don't have its sales figures. The 2020 has the most owner complaints filed with NHTSA (35). Owners complain most about electrical system. Popular years get more complaints, so treat these counts as a guide to what goes wrong, not a ranking.
Owner complaints filed with NHTSA, all years 2015–2025.
| Model year | Reliability | Complaints | Recalls | Best mpg |
|---|---|---|---|---|
| 2025 S4 | Not rated yet | 0 | 0 | 24 |
| 2024 S4 | Not rated yet | 0 | 0 | 24 |
| 2023 S4 | Not rated yet | 0 | 0 | 24 |
| 2022 S4 | Not rated yet | 1 | 1 | 24 |
| 2021 S4 | Not rated yet | 2 | 4 | 23 |
| 2020 S4 | Not rated yet | 35 | 3 | 23 |
| 2019 S4 | Not rated yet | 3 | 1 | 24 |
| 2018 S4 | Not rated yet | 9 | 2 | 24 |
| 2016 S4 | Not rated yet | 0 | 0 | 21 |
| 2015 S4 | Not rated yet | 1 | 1 | 21 |
Reliability compares each year with similar cars from 2015 to 2024, using owner complaints filed with NHTSA per car sold. Complaint counts on their own aren't a score: popular cars get more of them.
Owners complain most about electrical system, driver-assist & stability, engine & cooling.
The 2021, with 4 recalls on record with NHTSA.