Used 2018 Audi A6 for Sale nearSaint Louis, MO
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2018
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 340 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 84,096
- Stock #:
- SM1122-1
- VIN:
- WAUH3AFC4JN034929
Sponsored by BMW of West St Louis
2018 Audi A6
3.0T quattro Prestige Sedan AWD
84,096 mi
$22,318
- Year:
- 2017
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 2L I4
- Exterior color:
- Black Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 100,990
- Stock #:
- J950A
- VIN:
- WAUC8AFC5HN094191
Sponsored Listing
2017 Audi A6
2.0T Premium Sedan FWD
100,990 mi
$13,549
- Year:
- 2017
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 2L I4
- Exterior color:
- Blue
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Tan)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 153,668
- Stock #:
- 090263
- VIN:
- WAUG8AFC4HN090263
Sponsored Listing
2017 Audi A6
2.0T quattro Premium Plus Sedan AWD
153,668 mi
$11,115
- Year:
- 2018
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 340 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 84,096
- Stock #:
- SM1122-1
- VIN:
- WAUH3AFC4JN034929
2018 Audi A6
3.0T quattro Prestige Sedan AWD
84,096 mi
$22,318
- Year:
- 2019
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Dual Clutch
- Mileage:
- 87,540
- Stock #:
- KN067904
- VIN:
- WAUL2AF22KN067904
2019 Audi A6
55 TFSI quattro Premium Plus Sedan AWD
87,540 mi
$19,874
- Year:
- 2018
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 2L I4
- Exterior color:
- Moonlight Blue Metallic
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Nougat Brown
- Transmission:
- 8-Speed Automatic
- Mileage:
- 83,716
- Stock #:
- PLC5784A
- VIN:
- WAUF8AFC5JN078933
2018 Audi A6
2.0T quattro Sport Sedan AWD
83,716 mi
$19,159
- Year:
- 2018
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 2L I4
- Exterior color:
- Ibis White
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 77,185
- Stock #:
- 015551
- VIN:
- WAUG8AFC0JN015551
2018 Audi A6
2.0T quattro Premium Plus Sedan AWD
77,185 mi
$17,912
- Year:
- 2019
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Daytona Gray Pearl
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 86,392
- Stock #:
- 1119
- VIN:
- WAUL2AF2XKN023942
2019 Audi A6
55 TFSI quattro Premium Plus Sedan AWD
86,392 mi
$23,047
- Year:
- 2019
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Silver
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Dual Clutch
- Mileage:
- 93,274
- Stock #:
- 3292
- VIN:
- WAUL2AF21KN060037
2019 Audi A6
55 TFSI quattro Premium Plus Sedan AWD
93,274 mi
$19,655
- Year:
- 2019
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 47,083
- Stock #:
- N027059
- VIN:
- WAUL2AF20KN027059
2019 Audi A6
55 TFSI quattro Premium Plus Sedan AWD
47,083 mi
$26,496
- Year:
- 2017
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 2L I4
- Exterior color:
- Gray Metallic
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 65,853
- Stock #:
- 073702
- VIN:
- WAUF8AFC2HN073702
2017 Audi A6
2.0T quattro Premium Sedan AWD
65,853 mi
$16,254
- Year:
- 2019
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Black Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 66,499
- Stock #:
- X021543
- VIN:
- WAUL2AF28KN021543
2019 Audi A6
55 TFSI quattro Premium Plus Sedan AWD
66,499 mi
$25,723
- Year:
- 2019
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 52,365
- Stock #:
- U17124Z
- VIN:
- WAUL2AF20KN099430
2019 Audi A6
55 TFSI quattro Premium Plus Sedan AWD
52,365 mi
$27,983
CarGurus Analysis:
2018 Audi A6
With 128 currently listed for sale near Saint Louis, MO and an average price of $19,805.00, 35.9% of 2018 Audi A6s for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 Audi A6 5 / 5 stars.
64.1% of 2018 A6 models on CarGurus are accident free.
The 2018 Audi A6 is praised for its luxurious interior design and powerful performance, particularly with the 3.0T engine, making it a compelling choice in the midsize luxury sedan market.
- Year:
- 2018
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 340 hp 3L V6
- Exterior color:
- Black Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 116,903
- Stock #:
- CA5071
- VIN:
- WAUG3AFC6JN017626
-$398
2018 Audi A6
3.0T quattro Premium Plus Sedan AWD
116,903 mi
$17,141
$16,743
- Year:
- 2018
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 340 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 55,601
- Stock #:
- U17127Z
- VIN:
- WAUF3AFC7JN047214
2018 Audi A6
3.0T quattro Sport Sedan AWD
55,601 mi
$25,283
- Year:
- 2018
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 2L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 29 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 85,971
- Stock #:
- 009915
- VIN:
- WAUC8AFC6JN009915
2018 Audi A6
2.0T Premium Sedan FWD
85,971 mi
$17,278
- Year:
- 2017
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 2L I4
- Exterior color:
- Florett Silver Metallic
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 120,179
- Stock #:
- 10892
- VIN:
- WAUF8AFCXHN047932
2017 Audi A6
2.0T quattro Premium Sedan AWD
120,179 mi
$13,279
- Year:
- 2017
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 333 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 60,591
- Stock #:
- 8566541501
- VIN:
- WAUH2AFC4HN119475
2017 Audi A6
3.0T quattro Prestige Sedan AWD
60,591 mi
$21,977
- Year:
- 2019
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Daytona Gray Pearl
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 74,441
- Stock #:
- 12727
- VIN:
- WAUL2AF21KN086301
2019 Audi A6
55 TFSI quattro Premium Plus Sedan AWD
74,441 mi
$20,644
- Year:
- 2018
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 2L I4
- Exterior color:
- White
- Combined gas mileage:
- 29 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 100,658
- Stock #:
- JN024471
- VIN:
- WAUC8AFC5JN024471
2018 Audi A6
2.0T Premium Sedan FWD
100,658 mi
$13,588
- Year:
- 2018
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 340 hp 3L V6
- Exterior color:
- Mythos Black Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 115,800
- Stock #:
- 053840
- VIN:
- WAUG3AFC1JN053840
2018 Audi A6
3.0T quattro Premium Plus Sedan AWD
115,800 mi
$18,070
- Year:
- 2019
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Blue
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Tan)
- Transmission:
- Automatic
- Mileage:
- 80,864
- Stock #:
- 023872
- VIN:
- WAUL2AF24KN023872
2019 Audi A6
55 TFSI quattro Premium Plus Sedan AWD
80,864 mi
$21,454
- Year:
- 2017
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 333 hp 3L V6
- Exterior color:
- Ibis White
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 33,700
- Stock #:
- HL10909
- VIN:
- WAUH2AFC7HN114111
-$1,000
2017 Audi A6
3.0T quattro Prestige Sedan AWD
33,700 mi
$24,799
$23,799
CarGurus Analysis: 2018 Audi A6
Summary
With 128 currently listed for sale near Saint Louis, MO and an average price of $19,805.00, 35.9% of 2018 Audi A6s for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 Audi A6 5 / 5 stars.
64.1% of 2018 A6 models on CarGurus are accident free.
The 2018 Audi A6 is praised for its luxurious interior design and powerful performance, particularly with the 3.0T engine, making it a compelling choice in the midsize luxury sedan market.
Why it stands out
The 2018 Audi A6 distinguishes itself in the competitive midsize luxury sedan segment with its blend of performance, comfort, and advanced technology. It features a well-appointed interior that emphasizes luxury and sophistication, appealing to buyers who value both aesthetics and functionality. The powerful 3.0T engine option provides an exhilarating driving experience, while the standard all-wheel drive enhances handling and stability. Additionally, the A6 has a reputation for incorporating cutting-edge technology, often debuting features that later appear in other Audi models. However, some users have noted that the price can be on the higher side, and the absence of certain safety features like blind spot monitoring may be a drawback for some buyers. Overall, the 2018 Audi A6 offers a compelling mix of luxury and performance, making it a strong contender in its class.
Other model years to consider
- Average price: $22,995.00
- Good/great deal percentage: 37.5%
- User rating: 4.89 / 5
- Total listings: 112
- Average price: $11,398.00
- Good/great deal percentage: 31.0%
- User rating: 5 / 5
- Total listings: 71
- Average price: $14,664.00
- Good/great deal percentage: 34.8%
- User rating: 3.86 / 5
- Total listings: 112
This analysis is based on CarGurus' proprietary market data from July 14, 2026, CarGurus experts' opinions, and generative AI.
5.0 Overall rating
Filter by rating
Anonymous
Reviewed a 2018 Audi A6 on Nov 11, 2021
This was my very first Audi. This car was definitely a great deal as far as the mileage and price . Awesome exterior and interior features , very clean and great car handling when driving. Very much satisfied of this purchase.
mmakay t
Reviewed a 2018 Audi A6 on May 3, 2023
amazing car all the way around. would definitely advise for my mothers. it literally has the best safety measure features ive ever seen!
Chequida D
Reviewed a 2018 Audi A6 on Jul 24, 2021
I love this car overall and it has all the features I am looking for except blind spot and lane departure
Albert E
Reviewed a 2018 Audi A6 on Feb 17, 2021
For me Audi interior designs are by far the best. It have all the features I was looking fore and more, and there are much mor features they you can get that my A6 doesn’t have since I got mine used, but Audi offers many more in new models. The most important was getting a 3.0T, I believe if you are getting in a luxury/Sport sedan you don’t really want to go with the smaller engine, the power is excellent especially when entering the highway with fast incoming traffic. I can go on and on about it, but the best is to do a good research and test drive it, then finding the right Exterior interior color combination that you like so you can enjoy driving this piece of engineering every time you get behind the wheel.
2018 Audi A6 Trims
| Trim type | MSRP |
|---|---|
| 2.0T Sport Sedan FWD | $51,200 |
| 2.0T Premium Plus Sedan FWD | $51,900 |
| 3.0T quattro Prestige Sedan AWD | $61,400 |
| 2.0T quattro Premium Sedan AWD | $51,900 |
| 2.0T quattro Sport Sedan AWD | $53,400 |
| 3.0T quattro Premium Plus Sedan AWD | $58,700 |
| 2.0T Premium Sedan FWD | $49,700 |
| 2.0T quattro Premium Plus Sedan AWD | $54,100 |
2018 Audi A6 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2018 Audi A6 prices has changed over time.
See more price trendsFAQs
How much does the 2018 Audi A6 cost in Saint Louis, MO?
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What fuel types are available?
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