Source: EPA FuelEconomy.gov & manufacturer data. Figures reflect base trim; actual specs vary by trim level.
About the 2018 Audi S3
The 2018 Audi S3 is a sedan that earns a Carivo score of 7.4/10 — rated Good. Its strongest dimension is Performance at 8.1/10, while Reliability at 6.5/10 is where it trails the competition most noticeably. It's a capable but unexceptional sedan — stronger alternatives exist if you're willing to shop the segment carefully.
Reliability and safety are the two dimensions that matter most for long-term ownership costs. At 6.5/10 for reliability, this sedan trails its segment. That doesn't rule it out, but go in with eyes open on running costs. Safety lands at 7.9/10 — solid, though some rivals offer more advanced driver-assist features as standard. Confirm official results for your trim at nhtsa.gov/ratings.
Few rivals match it for performance: 8.1/10. Expect handling and power delivery that make this one of the more entertaining sedans to actually drive. On technology it rates 8.1/10: a modern, well-integrated suite that compares favorably with anything at this price point.
Priced from $40,139–$51,174, 21 MPG, seating 5, the Audi S3 sits in the mid-market bracket of the sedan segment. The value score of 6.8/10 is a red flag — comparable alternatives offer meaningfully more for the same outlay. Shop the segment before deciding. At 8 years old, resale value, parts availability, and whether a successor model has improved on its weak points are all worth investigating before committing.
Verdict: The 2018 Audi S3 sits in the middle of the field. Until its value and reliability scores improve, stronger options exist at this price. Worth a look if it fits a specific need; otherwise use our compare tool against the segment leaders first.
Carivo scores are our own editorial assessment, informed by NHTSA safety and recall records, EPA fuel-economy figures, and manufacturer-published specifications. Scores are reviewed periodically and updated when new data becomes available. See our full methodology →
How It Ranks Among Sedans
The 2018 Audi S3 ranks #687 of 1310 sedans in the Carivo database — better than 48% of the segment. Its 7.4/10 overall score is 0.1 points below the segment average of 7.5/10. Its $40,139 starting price is about 45% above the segment's median of $27,664.
$0 — 1 campaign on record; recall work is always free at franchised dealers
Insurance
Varies widely by driver and state — always quote the exact trim before buying
We only print costs we can compute from sourced data (EPA fuel economy, NHTSA recalls). We don't estimate maintenance or depreciation — anyone who gives you one number for those is guessing.
Which S3 Year Should You Buy?
Smart-money pick: the 2015 Audi S3 scores 7.2/10 — within striking distance of the 2018's 7.4 — and starts roughly $4,500 lower. If you don't need the newest model year, that's money better spent on a higher trim or kept in your pocket.
Strong safety ratings from NHTSA and independent testers
Competent performance that satisfies most everyday driving demands
Modern, intuitive tech suite with wireless connectivity and up-to-date ADAS
✗ Where it falls short
Reliability scores are mid-pack; some owners report higher-than-expected maintenance needs
Fuel economy at 21 MPG is low — running costs will add up quickly
NHTSA Recalls — 2018 Audi S3 (1 on record)
The following recall campaign has been filed with NHTSA for this model and year. Recall repairs are performed free of charge by franchised dealers; check your specific vehicle with our free VIN recall checker.
Air bags / Sensor / Occupant classification / Front passenger 22/03/2021 · 21V198000
Volkswagen Group of America, Inc. (Audi) is recalling certain 2015-2020 Audi S3 Sedan, A3 Sedan, 2016-2018 A3 Etron, 2017-2020 RS3 Sedan, and 2015-2019 A3 Cabriolet vehicles. The passenger occupant detection system (PODS) may malfunction and switch off…
Source: NHTSA recall database, fetched at page build time.
Own a 2018 Audi S3 that's been repaired repeatedly for the same problem? It may qualify under your state's lemon law — run the free lemon law check →
Common Questions — 2018 Audi S3
Is the 2018 Audi S3 reliable?
We rate the 2018 Audi S3's reliability 6.5/10 — below the segment average, so budget for higher maintenance. It has 1 NHTSA recall campaign on record for this model year (details in the recalls section above — repairs are free at dealers).
How many recalls does the 2018 Audi S3 have?
1 NHTSA recall campaign matched this model and year as of our latest check. Verify your specific vehicle by VIN at nhtsa.gov/recalls.
Is the 2018 Audi S3 worth buying?
It scores 7.4/10 overall, ranking #687 of 1310 sedans in our database (better than 48% of the segment). Stronger-scoring alternatives exist at similar prices — use our compare tool before committing.
How much does the 2018 Audi S3 cost?
The 2018 Audi S3 starts at $40,139 and ranges up to $51,174 across trims (MSRP when new). At 21 MPG, expect roughly $2,500/year in fuel at 15,000 miles/year.
Which S3 years should you avoid?
Based on our year-by-year scoring, the weakest S3 years we've rated are 2015 (7.2/10) — each at least half a point below the nameplate's best (7.8/10). See the full year table above before deciding.
What problems does the 2018 Audi S3 have?
The documented issues for the 2018 Audi S3 are its NHTSA recall campaigns, which involve: Air bags (details in the recalls section above; repairs are free at dealers). For wear-and-tear patterns beyond recalls, owner forums are the best source — we only report what federal data documents.
Owner Essentials — Audi S3
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More Audi Reviews
Explore the full lineup of Audi models scored by Carivo — ranked by overall score across reliability, safety, value, performance, and technology.
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