Used 2016 Audi S4 for Sale in Ontario, CA
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54 listings
- New Listing
$43,999fair price$405 above market19,042 milesNo accidents, 1 Owner, Personal use6cyl AutomaticDriveway (In-stock online)Home delivery*- AWD/4WD
- Bluetooth
- Leather Seats
- Sunroof/Moonroof
- Keyless Entry/Start
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Located in Coral Springs, FL / 2,289 miles away from Ontario, CA
Low Mileage,Rare Find,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Heated Seats,Heated Steering Wheel,Keyless Start,Lane Dep...
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: WAUB4AF48MA064782
Stock: SPMA064782
Certified Pre-Owned: No - Price Drop
$39,88410,772 miles1 Accident, 1 Owner, Personal use6cyl AutomaticAudi Calabasas (57 mi away)- AWD/4WD
- Back-up camera
- Bluetooth
- Sunroof/Moonroof
- Keyless Entry/Start
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Located in Calabasas, CA / 57 miles away from Ontario, CA
CARFAX 1-Owner, ONLY 10,772 Miles! Premium trim. FUEL EFFICIENT 28 MPG Hwy/20 MPG City! Heated Leather Seats, Sunroof, Rear Air, All Wheel Drive, CONV...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
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: WAUA4AF46MA054148
Stock: MA054148A
Certified Pre-Owned: No
Listed since: 03-14-2024 - New Listing
$41,998fair price$1,294 above market26,539 miles6cyl AutomaticCarMax (In-stock online)Delivery available*- AWD/4WD
- Bluetooth
- Navigation
- Leather Seats
- Sunroof/Moonroof
Close
Located in Indianapolis, IN / 1,779 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 Unavailable.
Features and Specs:
23 Combined MPG (20 City/28 Highway)
Listing Information:
VIN: WAUB4AF40MA011364
Stock: 25491689
Certified Pre-Owned: No 
66,512 miles6cyl Automated ManualCarvana (In-stock online)Free home delivery*- AWD/4WD
- Bluetooth
- Sunroof/Moonroof
- Upgraded Headlights
- Power Driver Seat
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Located in Chicago, IL / 1,678 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 Unavailable.
Features and Specs:
21 Combined MPG (18 City/28 Highway)
Listing Information:
VIN: WAUKGAFL9AA079608
Stock: 2002817487
Certified Pre-Owned: No
Listed since: 04-02-2024- Price Drop
$47,998fair price$624 above market22,111 milesNo accidents, 2 Owners, Personal use6cyl AutomaticCarMax (In-stock online)Delivery available*- AWD/4WD
- Bluetooth
- Sunroof/Moonroof
- Keyless Entry/Start
- Upgraded Headlights
Close
Located in Hartford, CT / 2,481 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: WAUB4AF45PA014751
Stock: 25708060
Certified Pre-Owned: No - New Listing
8,036 milesNo accidents, 1 Owner, Personal use only6cyl AutomaticDriveway (In-stock online)Home delivery*- AWD/4WD
- Bluetooth
- Sunroof/Moonroof
- Keyless Entry/Start
- Upgraded Headlights
Close
Located in Farmington Hills, MI / 1,932 miles away from Ontario, CA
High Demand,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Heated Seats,Heated Steering Wheel,Keyless Start,Lane Departure War...
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: WAUB4AF48PA047551
Stock: PA047551A
Certified Pre-Owned: No - New Listing
$51,9982,936 milesNo accidents, 1 Owner, Personal use only6cyl AutomaticCarMax (In-stock online)Delivery available*- AWD/4WD
- Bluetooth
- Navigation
- Sunroof/Moonroof
- Keyless Entry/Start
Close
Located in Raleigh, NC / 2,193 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: WAUC4AF48PA001996
Stock: 25437999
Certified Pre-Owned: No 
63,315 milesNo accidents, 2 Owners, Personal use only8cyl AutomaticInside Car Guys (71 mi away)- AWD/4WD
- Leather Seats
- Upgraded Headlights
- Power Driver Seat
- Multi-Zone Climate C...
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Located in Thousand Oaks, CA / 71 miles away from Ontario, CA
We're located at:1282 Newbury Rd, Newbury Park CA 91320,off the 101 Freeway Exit VentuGreat deal on this one!!Car shopping? We are the number one auto...
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:
16 Combined MPG (14 City/20 Highway)
Listing Information:
VIN: WUARL48H85K900692
Stock: 570
Certified Pre-Owned: No- 86,235 milesNo accidents, 4 Owners, Personal use only8cyl AutomaticBig Boys Toys Auto Sales (30 mi away)
- AWD/4WD
- Leather Seats
- Upgraded Headlights
- Power Driver Seat
- Tire Pressure Warnin...
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Located in Huntington Beach, CA / 30 miles away from Ontario, CA
One of Audi s most unique and rarest vehicles 2008 Audi S4 Convertible in a great shape Traded-in by a wonderful couple who owned it for the past 10 y...
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:
16 Combined MPG (14 City/21 Highway)
Listing Information:
VIN: WUARL48H38K900426
Stock: RP-8K900426
Certified Pre-Owned: No
Listed since: 01-29-2024 
96,679 miles1 Accident, 1 Owner, Personal use only8cyl AutomaticCertified Auto Sales (4 mi away)- AWD/4WD
- Leather Seats
- Upgraded Headlights
- Multi-Zone Climate C...
- Auto Climate Control
Close
Located in Upland, CA / 4 miles away from Ontario, CA
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
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:
16 Combined MPG (14 City/21 Highway)
Listing Information:
VIN: WUARL48H87K901392
Stock: 901392
Certified Pre-Owned: No
Listed since: 02-18-2024
78,495 milesNo accidents, 1 Owner, Personal use only8cyl AutomaticHigh Trade (30 mi away)- AWD/4WD
- Leather Seats
- Upgraded Headlights
- Power Driver Seat
- Multi-Zone Climate C...
Close
Located in Huntington Beach, CA / 30 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:
16 Combined MPG (14 City/20 Highway)
Listing Information:
VIN: WUARL48H55K900486
Stock: A183
Certified Pre-Owned: No
Listed since: 04-09-2024
$24,95053,914 milesNo accidents, 2 Owners, Personal use only6cyl ManualAll In Auto Sales (13 mi away)- AWD/4WD
- Leather Seats
- Upgraded Headlights
- Power Driver Seat
- Auto Climate Control
Close
Located in Norco, CA / 13 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:
18 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: WAURD68D91A091395
Stock: 091395
Certified Pre-Owned: No
Listed since: 07-30-2022
Consumer Reviews for the Audi S4
Read recent reviews for the Audi S4
Excellent Driver's Car
andre1966, 04/17/2014
2014 Audi S4 Premium Plus quattro 4dr Sedan AWD (3.0L 6cyl S/C 7AM)
2014 1st REVIEW - I am now on my third Audi and my current S4 is certainly the best. I test drove all models excluding A8 (can't afford it anyway) and S4 drives the best. Especially in its Sport mode - what a thrill! You can make it a normal commute car and join thousands of other generics on the highway during rush hours. But you can put in more aggressive mode and enjoy a proper sports … car at a press of a button (well several buttons anyway). Brilliant design, excellent engineering and great execution.
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2017 2nd REVIEW - My first review (see above) was written 3+ years ago. Well now I owned this car for 3.5 years. It is an excellent driver's car indeed. Engine is simply superb, smart technology and very thoughtful quality accents are everywhere, car software is perfect. It still drives like a dream. I am very happy with my purchase. Love the quality and reliability, love the intelligence and absolutely love the speed and acceleration. No breakdowns whatsoever in 3.5 years and 56K miles.
However maintenance cost is way too high if you don't do it yourself. I decided to do as much as possible myself (I like working on my cars) and after some initial investment in required tools my son and I already changed oil, breaks, disks, sparks plugs, filters, etc - everything strictly according to the maintenance schedule and AUDI torque specs. We use only OEM parts and save about 60-70% compared to our local dealership price. We also had to buy a special cable to re-program the car, reset service reminder, etc. I actually love working on this AUDI, it is very well engineered and it is a pleasure to service it.
There is one more thing to know / consider. You should not expect this car to be very economical fuel consumption-wise. It all depends on how you drive it - you can get anywhere from 15 to 28 MPG on a highway. Once you floor it, your MPG drops - but the thrill is very well worth it.
Highly recommended to those who like quality, sophistication, reliability, technology and speed. This S4 delivers all of that. Good job AUDI!
2019 3rd REVIEW - I now have almost 85K miles on the odometer. Still truly enjoy driving my S4 every time I am behind the wheel. Superb, high quality and very reliable car. Very fast, very sporty and responsive. My car still looks like new and I am not going to get a new one any time soon.
I always precisely follow recommended service schedule (everything by the book!) and so far I had no problems except for one issue. At around 70K miles I started smelling gas around the vehicle. I run diagnostics and it showed misfire error code in one of the cylinders. The problem was fixed by replacing all 6 ignition coils - I did everything myself in about 20 min. After some on-line research I found that this seems to be a well-known issue - my suggestion would be to replace all coils every 60K miles. Otherwise no problems whatsoever.
2021 4th REVIEW - so far so very good. No issues, scheduled maintenance only. Recently had a road trip across the country, car performed very well and was large enough for comfortable all-day driving. It is now 100K miles + on my odometer.
End of 2022 5th REVIEW - after noticing some minor noises coming out of front suspension at around 105K miles, I changed suspension components in the front myself, properly following original Audi service manual - took me three days but everything was done 100% accurately and carefully using original parts and new bolts and nuts. I had PCV-related code when I diagnosed the car recently, but the code was “unconfirmed” so I just cleared it and it did not show again next time I read the codes. I don’t drive it much these days, but when I do I am still very happy with the car. All maintenance is done according to the schedule, hopefully that will make it last 200K and beyond. The car is already 9 years old but still looks like new!
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 | $29,062 | $31,331 | $33,711 |
| Clean | $28,556 | $30,720 | $32,984 |
| Average | $27,713 | $29,702 | $31,773 |
| Rough | $26,617 | $28,379 | $30,198 |
The average list price of a used 2021 Audi S4 in Ontario, California is $30,061. The average mileage on a used Audi S4 2021 for sale in Ontario, California is 44,549. Based on the average mileage of 44,549 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 $27,713.
* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.