Audi S4 Problems — All Years, Common Issues & Reliability Report
Year-by-year breakdown of safety recalls, NHTSA owner complaints, reported injuries, and worst problem areas. Data sourced from federal safety databases and updated daily.
Own a Audi S4? Check your specific VIN for a full history report.
Audi S4 — Year-by-Year Problem Comparison
| Year | Recalls | Complaints | Injuries | Worst Component | |
|---|---|---|---|---|---|
| 2026Best | 0 | 0 | 0 | — | Full report → |
| 2025 | 0 | 0 | 0 | — | Full report → |
| 2024 | 0 | 0 | 0 | — | Full report → |
| 2023 | 0 | 0 | 0 | — | Full report → |
| 2022 | 1 | 0 | 0 | — | Full report → |
| 2021Worst | 4 | 2 | 0 | ELECTRICAL SYSTEM | Full report → |
Most Common S4 Problems
Based on 2 owner complaints filed with NHTSA across recent model years.
S4 Years to Avoid
Best S4 Years to Buy
Audi S4 Problems by Year
Frequently Asked Questions — Audi S4 Reliability
What year S4 has the most problems?
Based on NHTSA data, the 2021 Audi S4 had the highest combined complaint and recall count among recent model years — 2 complaints and 4 safety recalls. See the full 2021 report for details on specific defects.
Is the Audi S4 reliable?
The Audi S4 has accumulated 2 owner-filed complaints and 5 safety recalls across recent model years in NHTSA's national database. The 2026 model year stands out as having the fewest reported issues in recent data. Reliability varies significantly by year and individual vehicle history — always run a VIN check before purchasing any used S4.
What are the most common S4 problems?
The most frequently cited problem areas for the Audi S4 across recent model years are: ELECTRICAL SYSTEM (1 reports), UNKNOWN OR OTHER (1 reports). These are based on NHTSA complaints submitted directly by vehicle owners.
How do I check if my S4 has an open recall?
You can check for open recalls on any Audi S4 using the vehicle's 17-character VIN at VinCheckEngine.com. Our free VIN report pulls the latest NHTSA recall data along with accident history, odometer records, and other key information. Recalls on this page are model-level — a VIN check will confirm whether your specific vehicle's recall was remedied.
Check a Specific Audi S4 VIN
Model-level data shows what can go wrong. A VIN-specific report shows what has gone wrong with a particular vehicle — including auction history, odometer discrepancies, lien status, open recalls, accident records, and 30+ intelligence signals.
Run a Free Audi S4 VIN Report →No account required · Instant results · Updated daily