Used 2018 Audi S4 for Sale near Washington
28 vehicles found
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Blue
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 75,436
- Stock #:
- FNF042921
- VIN:
- WAUB4AF42JA042921
Sponsored by Seattle Finest Motors
2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
75,436 mi
$26,195
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 72,871
- Stock #:
- U8467
- VIN:
- WAUC4AF40JA095413
-$2,628
Sponsored Listing
2018 Audi S4
3.0T quattro Prestige Sedan AWD
72,871 mi
$30,199
$27,571
- Year:
- 2019
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 349 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 58,577
- Stock #:
- 70015252
- VIN:
- WAUB4AF47KA112625
2019 Audi S4
3.0T quattro Premium Plus Sedan AWD
58,577 mi
$30,747
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Red
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 52,525
- Stock #:
- 70041394
- VIN:
- WAUC4AF41JA114681
2018 Audi S4
3.0T quattro Prestige Sedan AWD
52,525 mi
$32,997
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Blue
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 75,436
- Stock #:
- FNF042921
- VIN:
- WAUB4AF42JA042921
2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
75,436 mi
$26,195
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Brilliant Black
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 157,074
- Stock #:
- M3687
- VIN:
- WAUB4AF48JA141498
2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
157,074 mi
$14,545
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 72,871
- Stock #:
- U8467
- VIN:
- WAUC4AF40JA095413
-$2,628
2018 Audi S4
3.0T quattro Prestige Sedan AWD
72,871 mi
$30,199
$27,571
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Silver
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 73,060
- Stock #:
- A005927
- VIN:
- WAUB4AF45JA005927
2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
73,060 mi
$28,036
- Year:
- 2019
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 349 hp 3L V6
- Exterior color:
- Quantum Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Magma Red
- Transmission:
- Automatic
- Mileage:
- 58,181
- Stock #:
- 3495
- VIN:
- WAUB4AF49KA050970
2019 Audi S4
3.0T quattro Premium Plus Sedan AWD
58,181 mi
$33,952
- Year:
- 2019
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 349 hp 3L V6
- Exterior color:
- Black Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 78,981
- Stock #:
- KA017122P
- VIN:
- WAUB4AF4XKA017122
2019 Audi S4
3.0T quattro Premium Plus Sedan AWD
78,981 mi
$30,130
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Blue Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 90,220
- Stock #:
- P13565
- VIN:
- WAUB4AF48JA001919
2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
90,220 mi
$21,892
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Daytona Gray Pearl Effect
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 73,019
- Stock #:
- 12930
- VIN:
- WAUB4AF43JA001441
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2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
73,019 mi
$27,080
- Year:
- 2019
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 349 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Red
- Transmission:
- 8-Speed Automatic
- Mileage:
- 64,315
- Stock #:
- 014298
- VIN:
- WAUB4AF4XKA014298
2019 Audi S4
3.0T quattro Premium Plus Sedan AWD
64,315 mi
$32,981
CarGurus Analysis:
2018 Audi S4
With 130 currently listed for sale and an average price of $24,752.00, 32.3% of 2018 Audi S4s for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 Audi S4 4.67 / 5 stars.
65.4% of 2018 Audi S4 models on CarGurus are accident free.
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 105,762
- Stock #:
- 003887
- VIN:
- WAUC4AF43JA003887
2018 Audi S4
3.0T quattro Prestige Sedan AWD
105,762 mi
$22,066
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Blue Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 114,153
- Stock #:
- 002107
- VIN:
- WAUB4AF47JA002107
2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
114,153 mi
$20,967
- Year:
- 2019
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 349 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 83,389
- Stock #:
- 069752
- VIN:
- WAUB4AF46KA069752
2019 Audi S4
3.0T quattro Premium Plus Sedan AWD
83,389 mi
$28,714
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Red
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 70,842
- Stock #:
- 151817
- VIN:
- WAUB4AF44JA151817
2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
70,842 mi
$26,823
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Blue
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 61,326
- Stock #:
- 27636047
- VIN:
- WAUB4AF45JA001960
2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
61,326 mi
$28,998
- Year:
- 2019
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 349 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Red
- Transmission:
- Automatic
- Mileage:
- 34,883
- Stock #:
- 27583602
- VIN:
- WAUC4AF43KA004510
2019 Audi S4
3.0T quattro Prestige Sedan AWD
34,883 mi
$37,997
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Orange
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 51,474
- Stock #:
- 17457
- VIN:
- WAUB4AF46JA167615
2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
51,474 mi
$33,864
- Year:
- 2019
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 349 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Transmission:
- 8-Speed Automatic
- Mileage:
- 46,799
- Stock #:
- 5660
- VIN:
- WAUB4AF49KA116207
2019 Audi S4
3.0T quattro Premium Plus Sedan AWD
46,799 mi
$34,320
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 57,325
- Stock #:
- 003381
- VIN:
- WAUC4AF44JA003381
2018 Audi S4
3.0T quattro Prestige Sedan AWD
57,325 mi
$35,595
- Year:
- 2018
- Make:
- Audi
- Model:
- S4
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 354 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 40,222
- Stock #:
- 70061416
- VIN:
- WAUB4AF47JA001944
2018 Audi S4
3.0T quattro Premium Plus Sedan AWD
40,222 mi
$35,997
CarGurus Analysis: 2018 Audi S4
Summary
With 130 currently listed for sale and an average price of $24,752.00, 32.3% of 2018 Audi S4s for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 Audi S4 4.67 / 5 stars.
65.4% of 2018 Audi S4 models on CarGurus are accident free.
Why it stands out
The 2018 Audi S4 is a standout in the sport sedan segment, thanks to its impressive blend of performance, luxury, and technology. With a powerful 3.0-liter turbocharged V6 engine delivering 354 horsepower and standard Quattro all-wheel drive, it offers vigorous acceleration and confident handling. The interior is equipped with high-quality materials, advanced infotainment features, and a sleek design, making it an appealing choice for buyers who value both comfort and performance. Despite some critiques regarding its handling compared to rivals like the BMW M340i, the S4 excels with a smooth ride and comprehensive standard features. Audi's reliability reputation is above average for this model year, and with favorable user ratings, the 2018 S4 is a compelling option for enthusiasts and daily drivers alike.
Other model years to consider
- Average price: $28,391.00
- Good/great deal percentage: 31.7%
- User rating: 5 / 5
- Total listings: 145
- Average price: $43,742.00
- Good/great deal percentage: 30.6%
- Total listings: 144
This analysis is based on CarGurus' proprietary market data from June 29, 2026, CarGurus experts' opinions, and generative AI.
4.7 Overall rating
Filter by rating
Byron L
Reviewed a 2018 Audi 3.0T quattro Premium Plus Sedan AWD on Jun 27, 2025
Smooth car runs nice very nice interior worth the price for all the features
Safiu I
Reviewed a 2018 Audi S4 on Mar 17, 2021
Bought the 2018 Audi S4. I love it. It has everything I wanted. Blind spot monitoring, Head up display, land keep assist pretty much everything. HP is Impressive as well does 354hp with 369 pounds of torque, packs quite a punch . Driving is very smooth and seats have massage capabilities . Definitely a comfort to drive.
Gabrielle S
Reviewed a 2018 Audi S4 on May 13, 2023
Great car. Some items for a 2019 model seem To be outdated. Examples - No built in navigation, side mirrors do not close in and out, other than that. Amazing car
2018 Audi S4 Trims
| Trim type | MSRP |
|---|---|
| 3.0 TFSI quattro Progressiv Sedan AWD | -- |
| 3.0T quattro Premium Plus Sedan AWD | $51,400 |
| 3.0T quattro Prestige Sedan AWD | $55,800 |
| 3.0 TFSI quattro Technik Sedan AWD | -- |
2018 Audi S4 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2018 Audi S4 prices has changed over time.
See more price trends2018 Audi S4 Pricing Analysis
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in Philadelphia: The city commands an average price of $27,243, likely due to higher demand and lower inventory.
- Lowest Prices in Los Angeles: With an average price of $18,999, this market may reflect a more competitive inventory or price-sensitive buyers.
- Inventory Variation: Cities like Washington, DC (39 listings) and Boston, MA (39 listings) show stable pricing around $24K, indicating a balanced supply-demand dynamic.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Philadelphia, PA | 36 | $27,243 |
| Chicago, IL | 33 | $24,621 |
| New York, NY | 37 | $24,995 |
| Dallas, TX | 34 | $24,995 |
| Washington, DC | 39 | $24,635 |
| Boston, MA | 39 | $24,160 |
| Houston, TX | 35 | $22,824 |
| Miami, FL | 26 | $20,293 |
| Atlanta, GA | 37 | $19,698 |
| Los Angeles, CA | 26 | $18,999 |
Pricing Analysis by Model Year
Key Insights
- Strong New-Car Premium: The 2024 Audi S4 is priced at $46,485, about -14.9% below MSRP, indicating strong demand and limited depreciation for the newest model year.
- Depreciation Curve Accelerates After 3–5 Years: Prices drop sharply starting around 2020–2019 models, with the 2019 Audi S4 down ~42.7% vs MSRP and even steeper declines for older years.
- Best Value Sweet Spot: The 2021–2022 models strike a balance between price and recency, with modest depreciation (~30.0%–22.8% below MSRP) compared to much steeper drops for older vehicles.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2024 | $54,500 | $46,485 | -14.9% |
| 2023 | $52,800 | $43,615 | -17.4% |
| 2022 | $51,900 | $40,058 | -22.8% |
| 2021 | $49,900 | $34,903 | -30.0% |
| 2020 | $49,900 | $31,306 | -37.2% |
| 2019 | $50,200 | $28,721 | -42.7% |
| 2016 | $49,200 | $20,710 | -57.9% |
| 2015 | $48,400 | $17,255 | -64.4% |
| 2014 | $48,100 | $18,680 | -61.1% |
| 2013 | $47,600 | $15,270 | -68.0% |
| 2012 | $47,300 | $12,701 | -73.1% |
These recommendations are based on CarGurus' proprietary market data from July 2, 2026, CarGurus experts' opinions, and generative AI.
FAQs
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