VEHICLE BUYER'S GUIDE
Audi S42000–2026
Year-by-year buyer intelligence from NHTSA safety data — reliability, value, and which years to target or avoid.
Best Years to Buy a Audi S4
Buyer Score combines reliability (65%) and depreciation value (35%) — higher is better.
Audi S4 Years to Avoid
3 recalls · 0 complaints
Top issue: No complaints on record
1 recall · 0 complaints
Top issue: No complaints on record
1 recall · 0 complaints
Top issue: No complaints on record
Federal Defect Investigations
NHTSA investigations are the stage that precedes a recall. 1 past investigation into the S4 became recall.
Source: NHTSA Office of Defects Investigation. Data current as of September 13, 2026.
Audi S4 — Year-by-Year Comparison
Every model year ranked by Buyer Score. Click any year for its detailed problem report.
| Year | Recalls | Complaints | Injuries | Deaths | Reliability | Value | Buyer Score | Verdict |
|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | 0 | — | — | 81 | 40 | 67 | Excellent |
| 2025 | 0 | 0 | — | — | 81 | 55 | 72 | Excellent |
| 2024 | 0 | 0 | — | — | 81 | 68 | 76 | Excellent |
| 2023 | 0 | 0 | — | — | 81 | 78 | 80 | Excellent |
| 2022 | 1 | 0 | — | — | 76 | 85 | 79 | Good |
| 2021 | 3 | 0 | — | — | 56 | 88 | 67 | Avoid |
| 2020 | 1 | 0 | — | — | 76 | 87 | 80 | Good |
| 2019 | 0 | 0 | — | — | 81 | 83 | 82 | Excellent |
| 2018 | 1 | 0 | — | — | 76 | 77 | 76 | Good |
| 2017 | 0 | 0 | — | — | 81 | 70 | 77 | Excellent |
| 2016 | 0 | 0 | — | — | 81 | 63 | 75 | Excellent |
| 2015 | 0 | 0 | — | — | 81 | 56 | 72 | Excellent |
| 2014 | 0 | 0 | — | — | 81 | 50 | 70 | Excellent |
| 2013 | 0 | 0 | — | — | 81 | 45 | 68 | Excellent |
| 2012 | 1 | 0 | — | — | 76 | 41 | 64 | Good |
| 2011 | 1 | 0 | — | — | 76 | 38 | 63 | Good |
| 2010 | 0 | 0 | — | — | 81 | 38 | 66 | Excellent |
| 2009 | 0 | 0 | — | — | 81 | 38 | 66 | Excellent |
| 2008 | 0 | 0 | — | — | 81 | 38 | 66 | Excellent |
| 2007 | 0 | 0 | — | — | 81 | 38 | 66 | Excellent |
| 2006 | 0 | 0 | — | — | 81 | 38 | 66 | Excellent |
| 2005 | 0 | 0 | — | — | 81 | 38 | 66 | Excellent |
| 2004 | 1 | 0 | — | — | 76 | 38 | 63 | Good |
| 2003 | 1 | 0 | — | — | 76 | 38 | 63 | Good |
| 2002 | 0 | 0 | — | — | 81 | 38 | 66 | Excellent |
| 2001 | 0 | 0 | — | — | 81 | 38 | 66 | Excellent |
| 2000 | 0 | 0 | — | — | 81 | 38 | 66 | Excellent |
Buyer Score = Reliability (65%) + Value window (35%). Deaths and injuries sourced from NHTSA complaint filings. Year links open full NHTSA problem reports.
Shopping by Era
How each generation of the S4 compares — best year within each era shown.
2018–Present
Modern safety tech, refreshed platforms, updated powertrains. Higher purchase price but lower reliability risk. Best pick in this era: 2019 (Buyer Score 82).
2013–2017
Mid-decade models in the depreciation sweet spot — typically 35–55% below original MSRP. Inspect carefully for powertrain wear and recall completion. Best: 2017 (Buyer Score 77).
Frequently Asked Questions
What is the best year S4 to buy?+
The 2020 Audi S4 scores highest on our Buyer Score (80/100) — combining a reliability score of 76/100 with a value score of 87/100. It has 1 recall and 0 NHTSA complaints on record.
Which S4 years have the most problems?+
The 2021, 2003, 2004 model years have the highest problem scores in our analysis. The 2021 S4 leads with 3 recalls and 0 owner complaints.
What is the Buyer Score?+
The Buyer Score is a composite metric that combines reliability (65% weight) and depreciation value (35% weight). Reliability reflects recall and complaint severity. Value reflects how much of the vehicle's depreciation has already been absorbed by prior owners — a 4–6 year old vehicle typically sits in the sweet spot.
What are the most common S4 problems?+
See the complaint chart on this page for a breakdown by component.
Deep-Dive Research
A buyer's guide shows model-level risk. A VIN report shows the individual vehicle — accidents, odometer history, open recalls, and auction records.