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56 listings
- $38,991good price$1,833 below market
- 27,564 miles
- No accidents, 1 owner, personal use
- 20 City / 28 Hwy MPG
- Audi Ontario (1 mi away)
- Home delivery*Five Star Dealer
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Located in Ontario, CA / 1 miles away from Ontario, CA
SUMMER SALES CLEARANCE EVENT!, AUDI ONTARIO, PREMIUM PLUS, S SPORT PACKAGE, BLACK OPTIC PACKAGE, BANG & OLUFSEN SOUND, LOW LOW MILES!, Adaptive Cruise...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
23 Combined MPG (20 City/28 Highway)
Listing Information:
VIN: WAUB4AF44MA087329
Stock: 33631UK
Certified Pre-Owned: No
Listed since: 07-22-2025 - Price Drop$39,888great price$2,424 below market
- 30,369 miles
- No accidents, 1 owner, personal use
- 21 City / 30 Hwy MPG
- Audi South Coast (27 mi away)
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Located in Santa Ana, CA / 27 miles away from Ontario, CA
Check out this well taken care of 2022 Audi s4. Loaded with Premium plus package, black optics package and bang & olufsen sound. Come take the BEST T...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF49NA009825
Stock: 67553
Certified Pre-Owned: No
Listed since: 06-17-2025 - Price Drop$32,600great price$2,312 below market
- 50,642 miles
- No accidents, 2 owners, personal use
- 20 City / 27 Hwy MPG
- Audi Riverside (16 mi away)
- Home delivery*
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Located in Riverside, CA / 16 miles away from Ontario, CA
SUMMER SALES CLEARENCE EVENT!, AUDI RIVERSIDE, PREMIUM PLUS, NAVIGATION PACKAGE, BLACK OPTIC PACKAGE, S SPORT PACKAGE, Alarm System w/Motion Sensors, ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
23 Combined MPG (20 City/27 Highway)
Listing Information:
VIN: WAUB4AF47LA072628
Stock: 20173A1
Certified Pre-Owned: No
Listed since: 07-22-2025 - New Listing
- 59,452 miles
- No accidents, 1 owner, personal use
- 20 City / 28 Hwy MPG
- RPM Motorcars (49 mi away)
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Located in Van Nuys, CA / 49 miles away from Ontario, CA
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
23 Combined MPG (20 City/28 Highway)
Listing Information:
VIN: WAUB4AF4XMA020329
Stock: 22061
Certified Pre-Owned: No 
Photos not available- 57,961 miles
- No accidents, 3 owners, personal use
- 20 City / 27 Hwy MPG
- Sunrise Ford Fontana (9 mi away)
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Located in Fontana, CA / 9 miles away from Ontario, CA
Clean CARFAX. S4 3.0T Premium Plus quattro, 3.0L TFSI, 8-Speed Automatic, quattro.20/27 City/Highway MPG
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
23 Combined MPG (20 City/27 Highway)
Listing Information:
VIN: WAUB4AF40LA038580
Stock: V67363
Certified Pre-Owned: No
Listed since: 07-15-2025- $32,500
- 63,006 miles
- No accidents, 1 owner, personal use only
- 21 City / 30 Hwy MPG
- Mercedes-Benz of Valencia (58 mi away)
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Located in Valencia, CA / 58 miles away from Ontario, CA
S4 3.0T Premium quattro, 4D Sedan, 3.0L TFSI, 8-Speed Automatic, quattro, Daytona Gray Pearl Effect, Black w/Leather/Dinamica Seating Surfaces or Leat...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUA4AF49NA041394
Stock: 4P2061A
Certified Pre-Owned: No
Listed since: 07-17-2025 - $48,000fair price$38 below market
- 11,382 miles
- No accidents, 1 owner, personal use
- 21 City / 30 Hwy MPG
- Audi Ontario (1 mi away)
- Home delivery*Five Star Dealer
Close
Located in Ontario, CA / 1 miles away from Ontario, CA
SUMMER SALES CLEARANCE EVENT!, AUDI ONTARIO, ONE OWNER, PREMIUM PLUS, BLACK OPTIC PLUS PACKAGE, PRICE DROP!, 2 Rear USB Charging Ports, Adaptive Cruis...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF49PA084348
Stock: 33597UK
Certified Pre-Owned: No
Listed since: 07-03-2025 - $33,990fair price$869 below market
- 37,761 miles
- No accidents, 1 owner, personal use
- 21 City / 30 Hwy MPG
- Audi Pacific (45 mi away)
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Located in Torrance, CA / 45 miles away from Ontario, CA
Clean CARFAX. Odometer is 3843 miles below market average! 21/30 City/Highway MPGAudi Connect PRIME & PLUS Online Services, Audi Virtual Cockpit, Ba...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF43KA002266
Stock: A00183
Certified Pre-Owned: No
Listed since: 07-08-2025 - New Listing$32,998fair price$933 below market
- 50,343 miles
- No accidents, 1 owner, personal use only
- 21 City / 30 Hwy MPG
- CarMax Burbank (40 mi away)
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Located in Burbank, CA / 40 miles away from Ontario, CA
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUC4AF45KA079922
Stock: 27505120
Certified Pre-Owned: No - 17,959 miles
- No accidents, 1 owner, personal use
- 21 City / 30 Hwy MPG
- Jaguar Van Nuys (50 mi away)
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Located in Van Nuys, CA / 50 miles away from Ontario, CA
Clean CARFAX, Black Metallic, 2023 Audi S4 3.0T Premium Plus quattro Sedan. CARFAX One-Owner. Recent Arrival!2 Rear USB Charging Ports, Adaptive Cru...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF47PA084381
Stock: LR260036A
Certified Pre-Owned: No
Listed since: 07-17-2025- 19,487 miles
- No accidents, 3 owners, personal use
- 20 City / 28 Hwy MPG
- Carvana (In-stock online)
- Home delivery*
Close
Located in Las Vegas, NV / 200 miles away from Ontario, CA
At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
23 Combined MPG (20 City/28 Highway)
Listing Information:
VIN: WAUB4AF41MA014757
Stock: 2003787350
Certified Pre-Owned: No
Listed since: 07-08-2025- New Listing
- 38,192 miles
- No accidents, 2 owners, corporate fleet vehicle
- 20 City / 28 Hwy MPG
- CarMax (In-stock online)
- Transfer available from DE to CA*
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Located in Newark, DE / 2,326 miles away from Ontario, CA
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: No
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
23 Combined MPG (20 City/28 Highway)
Listing Information:
VIN: WAUB4AF48MA018496
Stock: 27573425
Certified Pre-Owned: No - $44,485great price$2,461 below market
- 23,820 miles
- No accidents, 2 owners, personal use
- 21 City / 30 Hwy MPG
- Paradise Automotive (41 mi away)
- Home delivery*
Close
Located in San Juan Capistrano, CA / 41 miles away from Ontario, CA
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF44NA008145
Stock: 008145
Certified Pre-Owned: No
Listed since: 06-21-2025 - $41,150good price$2,031 below market
- 42,366 miles
- No accidents, 1 owner, personal use only
- 21 City / 30 Hwy MPG
- Driveway (In-stock online)
- Home delivery*
Close
Located in Fort Lauderdale, FL / 2,294 miles away from Ontario, CA
CarFax No Accidents Reported,CarFax 1-Owner,High Demand,Rare Find,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Heated Seats,...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF41NA044813
Stock: TDNA044813
Certified Pre-Owned: No - Price Drop$43,590fair price$375 below market
- 21,911 miles
- No accidents, 1 owner, personal use only
- 21 City / 30 Hwy MPG
- Carvana (In-stock online)
- Home delivery*
Close
Located in Birmingham, AL / 1,763 miles away from Ontario, CA
At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF47NA047408
Stock: 2003728132
Certified Pre-Owned: No
Listed since: 06-06-2025 - Price Drop$39,990fair price$1,379 below market
- 33,874 miles
- No accidents, 2 owners, personal use
- 21 City / 30 Hwy MPG
- Carvana (In-stock online)
- Home delivery*
Close
Located in Chicago, IL / 1,675 miles away from Ontario, CA
At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF44NA019422
Stock: 2003781635
Certified Pre-Owned: No
Listed since: 06-06-2025 - Price Drop$38,899fair price$435 above market
- 24,966 miles
- No accidents, 2 owners, personal use
- 20 City / 27 Hwy MPG
- Penske Buick GMC South Bay (45 mi away)
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Located in Torrance, CA / 45 miles away from Ontario, CA
Blue Metallic 2020 Audi S4 3.0T Premium Plus quattro quattro 8-Speed Automatic 3.0L TFSIRecent Arrival! 20/27 City/Highway MPGSome of our used vehicle...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
23 Combined MPG (20 City/27 Highway)
Listing Information:
VIN: WAUB4AF43LA041313
Stock: T4911
Certified Pre-Owned: No
Listed since: 07-19-2025 - Photos not available$39,991fair price$939 above market
- 68,515 miles
- No accidents, 1 owner, personal use
- 21 City / 30 Hwy MPG
- Lexus of Thousand Oaks (70 mi away)
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Located in Thousand Oaks, CA / 70 miles away from Ontario, CA
OPTION PACKAGESLeather Seats, Sunroof, All Wheel Drive, Rear Air, Heated Driver Seat Serviced here, Non-Smoker vehicle Our wish is to engage you in a ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF4XNA033356
Stock: A033356A
Certified Pre-Owned: No
Listed since: 07-30-2025 - New Listing
- 22,170 miles
- No accidents, 2 owners, personal use only
- 21 City / 30 Hwy MPG
- CarMax (In-stock online)
- Transfer available from CO to CA*
Close
Located in Federal Heights, CO / 802 miles away from Ontario, CA
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF43NA007939
Stock: 27229602
Certified Pre-Owned: No - Price Drop
- 23,255 miles
- No accidents, 2 owners, personal use only
- 21 City / 30 Hwy MPG
- Carvana (In-stock online)
- Home delivery*
Close
Located in Birmingham, AL / 1,763 miles away from Ontario, CA
At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (21 City/30 Highway)
Listing Information:
VIN: WAUB4AF49NA041352
Stock: 2003789767
Certified Pre-Owned: No
Listed since: 06-06-2025 - $41,993
- 28,934 miles
- No accidents, 2 owners, personal use
- 20 City / 27 Hwy MPG
- Audi Beverly Hills (44 mi away)
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Located in Beverly Hills, CA / 44 miles away from Ontario, CA
*Audi Beverly Hills does not reserve, or hold advertised vehicles, all are subject to prior sale on a first come first serve basis. Customer must take...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: Yes
Features and Specs:
23 Combined MPG (20 City/27 Highway)
Listing Information:
VIN: WAUC4AF49LA029638
Stock: SN045051A
Certified Pre-Owned: No
Listed since: 07-24-2025
Showing 1 - 21 out of 56 listings
Consumer Reviews for the Audi S4
Read recent reviews for the Audi S4
Simply Fantastic! Coast to Coast! 2018 S4 Prestige
Chris, 07/23/2017
2018 Audi S4 Prestige quattro 4dr Sedan AWD (3.0L 6cyl Turbo 8A)
Coming from a 328i and being a BMW fan in general I was very skeptical, with high expectations, for the S4 and I felt like I was taking a risk when I purchased this car. Looking back, I honestly feel I could not have made a better decision. This car is simply amazing in every way. I recently drove this car coast to coast from New Jersey to San Diego and had plenty of time to break it in. … Ride comfort: 40 hours and 2 1/2 days never went so fast... the Quattro handled torrential downpours to aggressive cornering like a dream. Fatigue was not an issue with the 3-way massaging seats! Driving Dynamics: The S4 accelerates like a rocket and handles like a dream at any speed. The different driving modes are critical as road conditions change. I loved how the Dynamic mode handled the winding mountains in the Southwest with ease and the comfort mode was smooth sailing through the various construction work zones across the country. Tech: The high end gizmos in the new Audi's was what finally pushed me away from BMW and towards Audi. The adjustable color heads up display with Navigation and speed sign recognition worked great! Crossing America, I never had to worry about the changes in the speed limit from a high of 75 to a low of 45 in the work zones... The cameras always caught the sign changes. I had never used lane keeping assist before so there was an adjustment period but once I got used to it... it was a blessing. After hours of driving and possible fatigue it felt like you had a guardian angel by your side giving you gentle nudges to keep you on track day or night. Having Navigation on dual screens is quite nice and extremely customizable, especially zoom in/out with the scroll of your thumb. The only negative I have is that the download speeds of the Audi Connect when searching weather or traffic updates was a bit slow but not surprising considering all the digital processing constantly going on with the car. Overall this car is a dream machine that I plan to enjoy for many years to come.
Used 2021 Audi S4 in Ontario, CA Values
Estimated values
2021 Audi S4 Premium Plus 4dr Sedan AWD (3.0L 6cyl Turbo 8A) with no options
| Condition | Trade-In | Private Party | Dealer Retail |
|---|---|---|---|
| Outstanding | $30,899 | $33,789 | $36,705 |
| Clean | $30,244 | $33,013 | $35,800 |
| Average | $29,153 | $31,721 | $34,290 |
| Rough | $27,734 | $30,042 | $32,327 |
The average list price of a used 2021 Audi S4 in Ontario, California is $39,865. The average mileage on a used Audi S4 2021 for sale in Ontario, California is 35,901. Based on the average mileage of 35,901 for used 2021 Audi S4 for sale in Ontario, CA and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used Audi S4 2021 in Ontario, California to be $29,153.
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