Used Audi A6 for Sale nearSidney, MT
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2016
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 333 hp 3L V6
- Exterior color:
- Moonlight Blue Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Nougat Brown
- Transmission:
- 8-Speed Automatic
- Mileage:
- 66,649
- Stock #:
- 20256A
- VIN:
- WAUFGAFC1GN010088
Sponsored by Dan Porter Honda
2016 Audi A6
3.0T quattro Premium Plus Sedan AWD
66,649 mi
$19,294
- Year:
- 2019
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Gray
- Fuel type:
- Gasoline
- Interior color:
- Sarder Brown
- Transmission:
- 7-Speed Automatic
- Mileage:
- 31,447
- Stock #:
- 15251
- VIN:
- WAUM2AF2XKN026134
2019 Audi A6
55 TFSI quattro Prestige Sedan AWD
31,447 mi
$30,563
- 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
$16,983
- Year:
- 2022
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Blue Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 21,972
- Stock #:
- J7581T
- VIN:
- WAUD3BF27NN007581
2022 Audi A6
quattro Premium 45 TFSI
21,972 mi
$30,310
- Year:
- 2017
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 333 hp 3L V6
- Exterior color:
- Moonlight Blue Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Nougat Brown
- Transmission:
- Automatic
- Mileage:
- 102,057
- Stock #:
- 007187
- VIN:
- WAUH2AFC9HN007187
2017 Audi A6
3.0T quattro Prestige Sedan AWD
102,057 mi
$16,583
- Year:
- 2023
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Black Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 21,956
- Stock #:
- L12752
- VIN:
- WAUD3BF25PN079673
2023 Audi A6
quattro Premium 45 TFSI
21,956 mi
$33,446
- Year:
- 2021
- 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:
- 72,320
- Stock #:
- FNFN013634
- VIN:
- WAUK2AF26MN013634
2021 Audi A6
quattro Premium 55 TFSI AWD
72,320 mi
$27,286
- Year:
- 2018
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 2L I4
- Exterior color:
- Glacier White Metallic
- Combined gas mileage:
- 29 MPG
- Fuel type:
- Gasoline
- Interior color:
- Flint Gray
- Transmission:
- Automatic
- Mileage:
- 77,013
- Stock #:
- 090137
- VIN:
- WAUC8AFC4JN090137
2018 Audi A6
2.0T Premium Sedan FWD
77,013 mi
$16,983
- Year:
- 2016
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Exterior color:
- Black
- Interior color:
- Brown (Beige)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 61,160
- Stock #:
- 151615
- VIN:
- WAUJGAFC9GN151615
2016 Audi A6
3.0T quattro Technik Sedan AWD
61,160 mi
$17,857
- Year:
- 2016
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 333 hp 3L V6
- Exterior color:
- Moonlight Blue Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Nougat Brown
- Transmission:
- 8-Speed Automatic
- Mileage:
- 66,649
- Stock #:
- 20256A
- VIN:
- WAUFGAFC1GN010088
2016 Audi A6
3.0T quattro Premium Plus Sedan AWD
66,649 mi
$19,294
- Year:
- 2017
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 2L I4
- Fuel type:
- Gasoline
- Transmission:
- 7-Speed Automatic
- Mileage:
- 94,500
- Stock #:
- 046964
- VIN:
- WAUD8AFC8HN046964
2017 Audi A6
2.0T Premium Plus Sedan FWD
94,500 mi
$15,352
- Year:
- 2013
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 310 hp 3L V6
- Exterior color:
- Ice Silver Metallic
- Combined gas mileage:
- 22 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 88,567
- Stock #:
- 058569
- VIN:
- WAUGGAFC4DN058569
2013 Audi A6
3.0T quattro Premium Plus Sedan AWD
88,567 mi
$13,863
- Year:
- 2023
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- Gray Metallic
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Dual Clutch
- Mileage:
- 30,687
- Stock #:
- L12558
- VIN:
- WAUD3BF27PN036193
2023 Audi A6
quattro Premium 45 TFSI
30,687 mi
$31,946
Recommended model year:
2019 Audi A6
Shop 2019 Audi A6 »With 594 currently listed for sale and an average price of $22,603.00, 35.5% of 2019 Audi A6s for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2019 Audi A6 4.89 / 5 stars and CarGurus experts gave it an 8.5 / 10.
72.2% of 2019 Audi A6 models on CarGurus are accident free.
- Year:
- 2016
- 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:
- 96,618
- Stock #:
- 069151
- VIN:
- WAUFGAFC2GN069151
2016 Audi A6
3.0T quattro Premium Plus Sedan AWD
96,618 mi
$15,917
- 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:
- 55,605
- Stock #:
- U17127Z
- VIN:
- WAUF3AFC7JN047214
2018 Audi A6
3.0T quattro Sport Sedan AWD
55,605 mi
$25,053
- Year:
- 2022
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Glacier White
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 62,647
- Stock #:
- A86827
- VIN:
- WAUL2BF21NN008353
2022 Audi A6
quattro Premium Plus 55 TFSI
62,647 mi
$30,998
- Year:
- 2023
- 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
- Transmission:
- Automatic
- Mileage:
- 48,403
- Stock #:
- Y6409
- VIN:
- WAUM2BF22PN039389
2023 Audi A6
quattro Prestige 55 TFSI
48,403 mi
$38,706
- Year:
- 2014
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 220 hp 2L I4
- Exterior color:
- Brilliant Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Velvet Beige)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 72,502
- Stock #:
- 017573
- VIN:
- WAUGFAFC4EN017573
2014 Audi A6
2.0T quattro Premium Plus Sedan AWD
72,502 mi
$13,247
- Year:
- 2015
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 220 hp 2L I4
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 96,458
- Stock #:
- 12420
- VIN:
- WAUGFAFC6FN026695
2015 Audi A6
2.0T quattro Premium Plus Sedan AWD
96,458 mi
$11,950
- Year:
- 2019
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Gray
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 7-Speed Automatic
- Mileage:
- 61,127
- Stock #:
- 18751
- VIN:
- WAUL2AF27KN024403
2019 Audi A6
55 TFSI quattro Premium Plus Sedan AWD
61,127 mi
$24,500
- Year:
- 2021
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 335 hp 3L V6
- Exterior color:
- Firmament Blue Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 32,518
- Stock #:
- 11071
- VIN:
- WAUL2AF2XMN037116
2021 Audi A6
quattro Premium Plus 55 TFSI AWD
32,518 mi
$31,224
- Year:
- 2021
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 261 hp 2L I4
- Exterior color:
- White
- Combined gas mileage:
- 27 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- Automatic
- Mileage:
- 80,491
- Stock #:
- 5086
- VIN:
- WAUD3AF23MN059542
2021 Audi A6
quattro Sport Premium 45 TFSI AWD
80,491 mi
$23,304
- Year:
- 2016
- Make:
- Audi
- Model:
- A6
- Body type:
- Sedan
- Doors:
- 4 doors
- Drivetrain:
- All-Wheel Drive
- Engine:
- 333 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 108,964
- Stock #:
- 001371
- VIN:
- WAUHGAFC5GN001371
2016 Audi A6
3.0T quattro Prestige Sedan AWD
108,964 mi
$16,917
FAQs
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How many Audi A6 vehicles in Sidney, MT have no reported accidents or damage?
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What fuel types are available?
4.6 Overall rating
Customers say
The Audi A6 has consistently impressed owners across various model years with its blend of luxury, performance, and advanced technology. Reviewers particularly love the comfortable interiors, powerful engines, and smooth handling, making it a joy to drive for long distances. However, many have raised concerns about high maintenance costs and occasional performance issues, such as sluggish acceleration in some models. Overall, the A6 is favored for its reliable performance and luxurious features, though some drivers wish for improved cost efficiency.
AI generated from the text of customer reviews.
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What people say
Austin R
Reviewed a 2012 Audi A6 on Apr 2, 2025
In love with this car. After going from a 2009 Audi A6 to this 2012, I have 0 complaints. Couldn't be happier
Anonymous
Reviewed a 2015 Audi A6 on Sep 23, 2024
Great comfort, handling, torque, quiet, and the fuel mileage on highway is even better than whats listed.
Demetrius C
Reviewed a 2019 Audi A6 on Jul 22, 2025
This car came loaded with every feature I was looking for. Blind spot monitoring, adaptive cruise control, vented seat, ect. I definitely got what I paid for in a good way. I wish the outside of the car had a sleeker design.
Eric L
Reviewed a 2011 Audi A6 on Nov 3, 2024
The A6 Avant from 2010-2011 can do it all. Its a rare car that is a family hauler, mountain climber, and it puts a smile on your face every time you drive it.
Audi A6 Trims
| Trim type | MSRP |
|---|---|
| quattro Prestige 55 TFSI | $71,400 |
| quattro Progressiv TFSI | -- |
| quattro Technik TFSI | -- |
| quattro TFSI | -- |
| quattro Premium 55 TFSI | $64,100 |
| quattro Premium Plus 55 TFSI | $67,500 |
Audi A6 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of Audi A6 prices has changed over time.
See more price trendsCarGurus recommends the 2019 Audi A6
Summary
With 594 currently listed for sale and an average price of $22,603.00, 35.5% of 2019 Audi A6s for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2019 Audi A6 4.89 / 5 stars and CarGurus experts gave it an 8.5 / 10.
72.2% of 2019 Audi A6 models on CarGurus are accident free.
Why it stands out
The 2019 Audi A6 stands out as a redesigned midsize luxury sedan that was described as a new standard-bearer in Audi’s lineup. It is also presented as both instantly familiar and radically different from its predecessor, which captures the car’s appeal: it keeps the familiar Audi sedan formula while introducing a more modern character.
What makes the 2019 A6 distinctive is the combination of a completely new approach to Audi’s Multi-Media Interface, a light-electrified hybrid powertrain, and more sophisticated driver-assistance technologies. It was initially available with a single drivetrain choice and in Premium, Premium Plus, and Prestige trim, so the lineup was straightforward even as the car itself moved the brand forward. Owners also praised its blend of luxury, performance, and advanced technology, along with the interior design, virtual cockpit, and touch screen controls.
Other model years to consider
- Average price: $16,832.00
- Good/great deal percentage: 36.3%
- User rating: 5 / 5
- Total listings: 661
- Average price: $31,505.00
- Good/great deal percentage: 37.0%
- User rating: 5 / 5
- Total listings: 610
- Average price: $34,919.00
- Good/great deal percentage: 36.8%
- Total listings: 603
These recommendations are based on CarGurus' proprietary market data from August 10, 2026, CarGurus experts' opinions, and generative AI.
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