Audi S4 (B6)
Showing 25-48 of 120 listings
2004 Audi S4 Standard
Broomfield, CO
2005 Audi S4 - Quattro Cabriolet 2D
Kent, WA
2004 Audi S4
Fullerton, CA
2004 Audi S4 quattro AWD 4dr Sedan
Everett, WA
2005 Audi S4 - Quattro Cabriolet 2D
Brighton, MI
2005 Audi S4 - Quattro Sedan 4D
Puyallup, WA
2004 Audi S4 - Quattro Sedan 4D
Cranford, NJ
2005 AUDI S4
Unknown
2005 Audi S4 - Quattro Sedan 4D
Loveland, CO
2004 Audi S4 - Quattro Premium Plus Sedan 4D
Los Angeles, CA
2005 Audi S4 (2005.5) - Quattro Sedan 4D
Cary, IL
2005 Audi S4 - Quattro Sedan 4D
Deer Park, NY
Used 2005 Audi S4 Avant
Littleton, CO
2004 Audi S4
Fort Lauderdale, FL
2005 Audi S4 Avant quattro
Los Angeles, CA
Used 2004 Audi S4 Sedan
Naperville, IL
2005 Audi S4
Los Angeles, CA
2004 Audi S4 - Roadster
Fort Lauderdale, FL
2005 Audi S4 Avant
Los Angeles, California
2004 Audi S4 Standard
Naperville, IL
2005 Audi S4
Unknown
2005 Audi S4
Atlanta, GA
2004 Audi S4 quattro Sedan AWD
Naperville, IL
2005 Audi S4 quattro Sedan AWD
Martinez, CA
Audi S4 (B6) Market Overview
Built by Audi from 2003-2005, the Audi S4 (B6) is tracked across 120 active listings from 9 marketplaces including eBay Motors, Bring a Trailer, Cars & Bids, AutoTrader, CarGurus, Cars.com, and Facebook Marketplace. Each listing is analyzed by AI for quality, value, and condition.
Audi S4 (B6) Pricing Data
As of July 2026, the median asking price for a Audi S4 (B6) is $8,999, with an average of $10,909. The middle 50% of listings (25th to 75th percentile) are priced between $6,495 and $15,900. The median mileage across active listings is 111,000 miles. Listings spend an average of 273 days on market before selling or being removed.
Where to Find a Audi S4 (B6)
The highest concentration of Audi S4 (B6) listings by state: CA (21), IL (14), WA (11), CO (8), TX (6). Listings are sourced from Facebook Marketplace (49), CarGurus (17), Cars.com (13), Classic.com (12), TrueCar (10), AutoTrader (8).
Audi S4 (B6) by Model Year
The most commonly listed model year is 2005 with 67 listings. Year breakdown: 2005 (67 listings), 2004 (48 listings), 2003 (1 listings).
Audi S4 (B6) Sales History
CarSearch.Pro tracks 186 historical Audi S4 (B6) sales from auction houses and dealer records. In 2026-Q2, the median sale price was $11,000 across 5 sales, down 21.4% from 2026-Q1 ($14,000).
| Quarter | Sales | Median Price | Average Price |
|---|---|---|---|
| 2025-Q1 | 9 | $18,250 | $17,968 |
| 2025-Q2 | 6 | $13,250 | $11,665 |
| 2025-Q3 | 12 | $19,888 | $17,875 |
| 2025-Q4 | 21 | $10,750 | $13,836 |
| 2026-Q1 | 8 | $14,000 | $14,619 |
| 2026-Q2 | 5 | $11,000 | $9,960 |