The Audi S4 B9 (2017–2025) costs on average €47,107 on the European used-car market, based on 24 listings. Typical prices range from €47,107 to €47,107 depending on year and condition.

| Year | Average price | Average mileage | Listings |
|---|---|---|---|
| 2024 | €47,107 | 51,360 km | 24 |
Market prices are averages of live European listings. Factory data comes from the Dutch vehicle registry (RDW open data).