The Audi A6 has been in production since 1994, when it replaced the Audi 100. Originally, it used the same chassis, but it was renamed to fit better into Audi's naming conventions. Audi offered saloon and Avant models right from the beginning and has taken the A6 through five generations, with regular facelifts that keep the lineup fresh and modern.
836 Used Audi A6 cars for sale
Audi, A6
2024 (74) - 40 TDI Quattro S Line 5dr S Tronic
25£42,990
Finance available £863 pm
- 2L
- Miles
5.0K
- Diesel
- Semi Auto
- Estate
Vindis Bedford Audi
Audi, A6
2014 - 3.0 TDI V6 SE 4-Door
64Reduced
£7,295
- 3L
- Miles
87.0K
- Diesel
- Manual
- Saloon
Chris Noyland Bill Rhodes Ltd
Audi, A6
2014 (64) - 3.0 TDI QUATTRO S LINE BLACK EDITION 4d 313 BHP 4-Door
50Low Mileage
£14,395
Finance available £299 pm
- 3L
- Miles
54.6K
- Diesel
- Automatic
- Saloon
Walmersleys Trade Centre
Audi, A6
2016 (16) - 2.0 TDI ultra Black Edition S Tronic Euro 6 (s/s) 4dr
69£10,989
Finance available £223 pm
- 2L
- Miles
103.3K
- Diesel
- Automatic
- Saloon
Autobarn Motor Company Ltd
Audi, A6
2014 - 4.0 RS 6 TFSI V8 Quattro Auto 4WD 5dr
47Low Mileage
£31,000
Finance available £616 pm
- Miles
69.0K
- Petrol
- Automatic
- Estate
Penny Hill Motors
Audi, A6
2007 (57) - 2.0 TDI DPF SE 4dr Multitronic
9Low Mileage
£1,995
- 2L
- Miles
130.0K
- Diesel
- Semi Auto
- Saloon
JP Car Sales
Audi, A6
2013 - AVANT TDI SE 5-Door
10£4,295
Finance available £74 pm
- 2L
- Miles
146.0K
- Diesel
- Automatic
- Estate
ALLCARS(sales)LIMITEDT/aAllcars
Audi, A6
2023 - 40 TFSI Sport 5dr S Tronic
40£29,949
Finance available £634 pm
- 2L
- Miles
11.8K
- Petrol
- Automatic
- Estate
Motorpoint Newport
Audi, A6
2021 - Tfsi Sport Mhev 4-Door
23Low Mileage
£20,920
Finance available £445 pm
- 2L
- Miles
15.0K
- Petrol
- Automatic
- Saloon
Hippo Approved
Audi, A6
2015 (65) - 2.0 TDI Ultra S Line 4dr
20£7,489
Finance available £145 pm
- 2L
- Miles
98.0K
- Diesel
- Manual
- Saloon
BEECHES MOTOR ZONE LTD
Audi, A6
2021 - 45 TFSI 265 Quattro Black Edition 5dr S Tronic Auto
56Low Mileage
£32,820
- 2L
- Miles
25.1K
- Petrol
- Semi Auto
- Estate
Audi, A6
2021 (21) - 40 TDI S Line 5dr S Tronic Diesel Estate
33£22,725
- 2L
- Miles
43.1K
- Diesel
- Automatic
- Estate
Audi, A6
2024 - 2.0 TFSIe 50 Black Edition Saloon 4dr Petrol Plug-in Hybrid S Tronic quattr
65Reduced
£54,995
Finance available £1,061 pm
- 2L
- Miles
10.0
- Hybrid
- Automatic
- Saloon
Audi, A6
2021 - 40 TDI Quattro Black Edition 4dr S Tronic
19Low Mileage
£29,998
- 2L
- Miles
24.7K
- Diesel
- Automatic
- Saloon
Audi, A6
2016 (16) - 3.0 BiTDI 320 Quattro S Line 4dr Tip Auto (Tech)
14Low Mileage
£19,950
- 3L
- Miles
49.0K
- Diesel
- Automatic
- Saloon
Listers Honda Northampton
Audi, A6
2015 - 2.0 TDI ultra SE S Tronic Euro 6 (s/s) 5dr
55£7,995
Finance available £156 pm
- 2L
- Miles
124.1K
- Diesel
- Automatic
- Estate
RX Motors Ltd
Audi, A6
2019 - 45 TFSI Quattro Sport S Tronic 4-Door
19Low Mileage
£18,097
Finance available £367 pm
- 2L
- Miles
30.0K
- Petrol
- Automatic
- Saloon
Audi, A6
2015 - 2.0 TDI Ultra S Line 4dr S Tronic
19Low Mileage
£12,450
Finance available £256 pm
- 2L
- Miles
72.6K
- Diesel
- Semi Auto
- Saloon
Sam Creith Motors Ltd
Audi, A6
2018 - TFSI Black Edition 4-Door
56£14,795
Finance available £290 pm
- 1.8L
- Miles
76.5K
- Petrol
- Automatic
- Saloon
McCarthy Cars Ltd
Find a specific Audi A6
Trim
Audi A6 Black EditionAudi A6 Edition 1Audi A6 Launch EditionAudi A6 Le MansAudi A6 S LineAudi A6 S Line Special EditionAudi A6 S6Audi A6 S6 Black EditionAudi A6 SEAudi A6 SE ExecutiveAudi A6 Sport
Body Style
Engine Size
Fuel Type
Transmission
Colour
Registration Year
Why buy a used Audi A6?
If you're in the market for a car that's stylish, spacious and comfortable, then a used Audi A6 is a great choice. The premium A6 models offer superior levels of refinement and passengers are able to enjoy a high-tech environment in the cabin. There is a wide range of powertrain options and different bodystyles available.
Used Audi A6 snapshot review
Pros
- Quality cabin
- Refined on the move
- Spacious
Cons
- Rivals are better to drive
- Thirsty petrol engines
- Some rivals have bigger boots
Search used Audi A6 by type
Used Audi A6 buying guide
Engines and transmissions
Audi has offered diesel, petrol and hybrid powertrains with the A6, along with an automatic or manual transmission and front-wheel or four-wheel drive.
Petrol- 40 TFSI uses a 2.0-litre four-cylinder to make 201bhp for an efficiency rating of up to 39.8mpg.
- 45 TFSI increases the output from the same engine to 261bhp, providing a 5.8-second 0-60mph time, but efficiency is only reduced to 37.2mpg.
- There is also a less powerful 241bhp 45 TFSI variant, with the 0-60mph time dipping to 5.8 seconds and the fuel economy to 34.4mpg.
- 55 TFSI uses a 3.0-litre engine that produces 335bhp and achieves 32.8mpg. The Vorsprung hybrid variant increases the power to 361bhp.
- Plug-in hybrid 50 TFSI e uses the 2.0-litre engine and an electric motor to create 294bhp with an electric-only driving range of around 30 miles per charge and a fuel economy of 36.7mpg.
- 40 TDI has a 2.0-litre engine that creates 201bhp, giving the A6 a 0-60mph time of 7.2 seconds and an efficiency rating of up to 50.4mpg.
- Other diesel motors generate between 281bhp and 344bhp, depending on the configuration.
The most economical engine is the 268bhp 3.0-litre, which offers 55mpg and a 5.3-second 0-60mph time.
Practicality
The Audi A6 offers a large amount of space in the executive cabin, and with plenty of headroom, knee room and shoulder room, even tall adults can get comfortable.
Interior space- Electrically adjustable front seats and steering wheel create a comfortable environment for passengers of all sizes.
- Three adults can fit comfortably in the back.
- ISOFIX mounting points for child seats are easily accessible through the large rear doors.
- 530-litre boot is comparable to the BMW 5 series.
- Folding down the rear seats offers more boot space.
- Avant models have slightly more boot space than the saloon.
12-volt power socket found in the boot to charge electrical devices.
Bodystyles- Four-door saloon offers executive styling.
Estate variant is known as the A6 Avant.
Safety
- 2018 Euro NCAP rating was a perfect five stars.
- 93% score given for adult occupant, while child occupant is 85% and vulnerable road users is 81%.
- Standard kit includes numerous airbags, lane departure warning, automatic emergency braking, a reversing camera and cruise control.
Technology
- Available Virtual Cockpit display can be adjusted for different views.
- Standard 9.0-inch touchscreen display is easy to use and can be upgraded to a larger 10.0-inch version.
- Connectivity is seamless through Apple CarPlay, Android Auto and Bluetooth.
Audi A6 video review
Different generations of used Audi A6
Sixth Generation (2023 to 2024)
- Fuel type:
- Diesel / Hybrid - Petrol/Electric / Petrol
- Engine Size:
- 2 - 3
- MPG:
- 7 - 235
- Acceleration:
- 5 - 7.6 seconds
- Boot space:
- 360 - 565 L capacity
- NCAP Safety rating:
- 5 / 5 stars
Greenest
50 TFSI e Quattro Sport 4dr S Tronic [Tech Pro]
Cheapest
40 TFSI Sport 4dr S Tronic
Fastest
S6 TDI Quattro Vorsprung 4dr Tip Auto
Fifth Generation (2018 to 2023)
Audi made sure that even the base model looked sophisticated and premium, with a bold-looking front bumper and a fastback design that featured revised taillights. From its silhouette, the A6 appears to be a typical saloon, but inside there's more room than meets the eye. With the fifth generation, Audi also provided a sunroof with every model, creating an airy cabin space.
A 2024 update added a new front bumper and redesigned grille. There were also new wheel designs released and unique rear bumper elements added. Audi also offered some new colours that allowed for more personalisation.
- Fuel type:
- Diesel / Hybrid - Petrol/Electric / Petrol
- Engine Size:
- 2 - 3
- MPG:
- 29 - 235
- Acceleration:
- 5 - 8.3 seconds
- Boot space:
- 360 - 565 L capacity
- NCAP Safety rating:
- 5 / 5 stars
Greenest
50 TFSI e 17.9kWh Quattro Sport 4dr S Tronic
Cheapest
40 TFSI Sport 4dr S Tronic
Fastest
S6 TDI 349 Quattro 4dr Tip Auto
Fourth Generation (2011 to 2018)
With the release of the fourth-generation Audi A6, the exterior styling became even more eye-catching. Audi unveiled new LED running lights, along with a sporty boot spoiler. The interior had more premium materials included and some updated technology.
In 2014, Audi worked on creating more efficiency without sacrificing any of the power. The lineup also received some exterior upgrades, such as new lighting features, refreshed bumpers and a more attractive grille design.
- Fuel type:
- Diesel / Hybrid - Petrol/Electric / Petrol
- Engine Size:
- 1.8 - 4
- MPG:
- 29 - 67
- Acceleration:
- 4.4 - 9 seconds
- Boot space:
- 375 - 565 L capacity
- NCAP Safety rating:
- 5 / 5 stars
Greenest
2.0 TFSI Hybrid 4dr Tip Auto
Cheapest
2.0 TDI SE 4dr
Fastest
S6 TFSI Quattro 4dr S Tronic
Used Audi A6 FAQ's
Which is the most popular engine in the Audi A6?
The diesel engines have been by far the most popular, with petrol following pretty far behind. However, the hybrid engine is likely to become more popular in the upcoming years as these models start to enter the used car market.
Which are the most popular model variants?
Audi currently offers the A6 in three variants: Sport, S Line and Black Edition. The S Line has been the most popular with its good balance of value and features, including 19-inch alloy wheels, privacy glass and a sport suspension.
What optional extras should I look out for?
You should look out for a 360° camera, a premium Bang & Olufsen sound system, a head-up display, remote parking assistant technology, front and rear heated seats, quad-zone automatic climate control and a panoramic glass sunroof.
Is the Audi A6 a good family car?
Yes, the A6 has a huge amount of passenger room, with the capability of seating three adults in the back seat comfortably. There's also a decent-sized boot for carrying suitcases and groceries.
Is there a hybrid version of the Audi A6?
Yes, Audi released the plug-in hybrid 50 TFSI e with a 2.0-litre engine and an electric motor to create 294bhp. When fully charged, this hybrid can offer up to 30 miles of driving on electric only before switching to petrol/electric hybrid power.
Is the Audi A6 available as an automatic?
There is an automatic transmission offered with the A6 lineup and it's the most popular gearbox among used models. There's also a manual transmission option for drivers but these are quite rare on the used market.
Is there a four-wheel drive version available?
Yes, it's possible to find a used A6 with four-wheel drive, which is known as quattro because the transmission supplies power to all of the wheels as needed. There are also used A6 models with front-wheel drive available, which benefit from better overall fuel economy.
Buying a used car checklist: what to look for
Buying a used car can be a daunting task, but with our checklist, you can make sure you’re getting the best deal possible.
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