Should I Buy a Audi S4?

Overview: Is the Audi S4 a Good Buy?

The Audi S4 spans 5 model years in the NHTSA database, with 28 total consumer complaints and 11 safety recalls on record. That works out to an average of approximately 6 complaints per model year. This buying guide is designed to help you identify the best and worst model years, understand the most common problems owners report, and make a more informed purchasing decision backed by official NHTSA safety data rather than anecdotal reviews.

Best vs. Worst Years at a Glance

If you are shopping for a used Audi S4, the model years to prioritize are 2015, 2021, 2019, which have the fewest owner-reported complaints. The years to approach with more caution are 2020, 2018, 2019, which have significantly higher complaint volumes. The difference between the best and worst years can be dramatic — the worst year has 16 complaints compared to just 1 for the best year. This gap often correlates with specific manufacturing issues, design changes, or component suppliers used during those production years.

Common Issues to Watch For

Across all model years, the most frequently reported problems with the Audi S4 involve Engine Failure, Electrical System Issue, Rear Axle Assembly. These are the components and systems that owners have flagged most often in their NHTSA complaints. If you are inspecting a used Audi S4, have a mechanic pay special attention to these areas. Some issues may be covered under existing recalls or extended warranties, so check the recall history for your specific model year before purchasing.