Audi A6 used • 1,515 cars price-checked by AutoUncle

Market overviewUsed Audi A6 prices typically range from £5,500 to £60,840, averaging £25,632 (according to fresh market data from January). The most popular Audi A6 variants right now are S-Line, Black Edition, Sport. We have identified 271 cars priced below the market. The average selling time for used Audi A6 is currently 35 days.

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-8%
1 / 3

Used (2021) Audi A6 S-Line 204 HP | Good price

-40 TDI S Line 4dr Tronic

  • 2021
  • 79,361 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg5.4
  • CO2142 g CO2/km comb.
  • Details
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Good price

£16,648
£18,208
E65LU, London
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-4%
1 / 4

Used (2021) Audi A6 Sport 204 HP | Super price

Avant 2021 | 2.0 TFSI 40 Sport S

  • 2021
  • 33,640 miles
  • Trim levelSport
  • 2.0L Petrol
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg7.3
  • CO2168 g CO2/km comb.
  • Details
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Super price

£21,000
£21,900
ME59QG, Kent
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1 / 4

Used (2023) Audi A6 Sport 204 HP | Super price

- 40 TFSI Sport 4dr S Tronic [Tech

  • 2023
  • 9,735 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg7.1
  • CO2162 g CO2/km comb.
  • Details
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Super price

£22,874
£22,819
NG317UH, Lincolnshire
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Used (2021) Audi A6 Sport 204 HP | Good price

40 TFSI Sport 4dr S Tronic

  • 2021
  • 35,323 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg7.1
  • CO2163 g CO2/km comb.
  • Details
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Good price

£20,399
B692AS, West Midlands
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Used (2018) Audi A6 Black Edition 190 HP | Super price

- 2.0 TDI Ultra Black Edition

  • 2018
  • 79,043 miles
  • Trim levelBlack Edition
  • 2.0L Diesel
  • Sedan
  • Manual
  • 190 HP (139 kW)
  • mpg4.5
  • CO2119 g CO2/km comb.
  • Details
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Super price

£10,795
£10,850
TN132TH, Kent
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-16%
1 / 3

Used (2022) Audi A6 Sport 204 HP | Super price

40 TFSI Sport 4dr S Tronic [Tech

  • 2022
  • 21,046 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg40
  • CO2163 g CO2/km comb.
  • Details
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Super price

£22,003
£26,476
KY127RD
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Used (2021) Audi A6 S-Line 204 HP | Super price

- Avant 40 TDI S Line 5dr

  • 2021
  • 54,363 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
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Super price

£19,849
£19,999
EX28NT, Devon
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-1%
1 / 4

Used (2023) Audi A6 Sport 204 HP | Super price

40 TFSI Sport 4dr S Tronic [Tech

  • 2023
  • 46,961 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg40
  • CO2162 g CO2/km comb.
  • Details
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Super price

£20,446
£20,783
BS43BD, Bristol
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1 / 4

Used (2021) Audi A6 S-Line 204 HP | Good price

- Avant 40 TDI S Line 5dr

  • 2021
  • 65,149 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
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Good price

£19,350
£19,300
DE655FJ Hilton, Derbyshire
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-3%
1 / 3

Used (2021) Audi A6 S-Line 204 HP | Super price

-40 TDI S Line 4dr Tronic

  • 2021
  • 52,960 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg5.4
  • CO2142 g CO2/km comb.
  • Details
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Super price

£18,250
£18,850
WD33RT Watford, Hertfordshire
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1 / 1

Used (2022) Audi A6 Sport 204 HP | Good price

- 40 TFSI Sport 4dr S Tronic [Tech

  • 2022
  • 22,589 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg7.1
  • CO2162 g CO2/km comb.
  • Details
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Good price

£21,697
B33 0JJ Birmingham, West Midlands
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1 / 4

Used (2021) Audi A6 S-Line 204 HP | Good price

- Avant 40 TDI S Line 5dr

  • 2021
  • 68,334 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
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Good price

£19,803
£19,773
OX162RS, Oxfordshire
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-4%
1 / 4

Used (2021) Audi A6 S-Line 204 HP | Super price

- Avant 40 TDI S Line 5dr

  • 2021
  • 67,860 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
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Super price

£17,899
£18,799
CW73AL, Cheshire
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-4%
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Used (2021) Audi A6 S-Line 204 HP | Super price

- Avant 40 TDI S Line 5dr

  • 2021
  • 65,150 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
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Super price

£18,399
£19,199
CW73AL, Cheshire
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-3%
1 / 4

Used (2021) Audi A6 S-Line 204 HP | Super price

-Avant 40 TDI S Line 5dr Troni

  • 2021
  • 45,590 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
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Super price

£20,699
£21,499
CW73AL, Cheshire
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Used (2018) Audi A6 Black Edition 190 HP | Super price

- 2.0 TDI Ultra Black Edition 4dr

  • 2018
  • 89,472 miles
  • Trim levelBlack Edition
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 190 HP (139 kW)
  • mpg4.5
  • CO2118 g CO2/km comb.
  • Details
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Super price

£10,449
MK404LN, Bedfordshire
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Used (2020) Audi A6 Sport 245 HP | Good price

SALOON 45 TFSI Quattro Sport 4dr S

  • 2020
  • 28,511 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 245 HP (180 kW)
  • mpg43.5
  • CO2182 g CO2/km comb.
  • Details
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Good price

£19,099
£18,899
M41 7TB Trafford Park, Manchester
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-4%
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Used (2021) Audi A6 Black Edition 204 HP | Good price

Saloon 2.0 TDI 40 Black Edition

  • 2021
  • 54,954 miles
  • Trim levelBlack Edition
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg48.7
  • CO2148 g CO2/km comb.
  • Details
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Good price

£21,995
£22,995
G513JH, Glasgow
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-13%
1 / 4

Used (2022) Audi A6 S-Line 204 HP | Good price

SALOON 40 TFSI S Line 4dr S Tronic

  • 2022
  • 19,210 miles
  • Trim levelS-Line
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg7.1
  • CO2162 g CO2/km comb.
  • Details
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Good price

£23,099
£26,599
CW73AL, Cheshire
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Used (2018) Audi A6 Black Edition 190 HP | Super price

- 2.0 TDI Ultra Black Edition 4dr

  • 2018
  • 96,500 miles
  • Trim levelBlack Edition
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 190 HP (139 kW)
  • mpg4.5
  • CO2118 g CO2/km comb.
  • Details
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Super price

£10,450
MK404LN, Bedfordshire
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-8%
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Used (2021) Audi A6 Black Edition 204 HP | Good price

-40 TDI Black Edition 4dr S

  • 2021
  • 28,400 miles
  • Trim levelBlack Edition
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg5.6
  • CO2148 g CO2/km comb.
  • Details
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Good price

£21,299
£23,199
CW73AL, Cheshire
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Used (2021) Audi A6 S-Line 204 HP | Good price

40 TDI S Line 5dr S Tronic

  • 2021
  • 59,915 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
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Good price

£21,595
S802QD Hinckley, Nottinghamshire
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Used (2021) Audi A6 S-Line 204 HP | Good price

- 40 TDI S Line 4dr Tronic

  • 2021
  • 73,000 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg5.4
  • CO2142 g CO2/km comb.
  • Details
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Good price

£17,250
£17,400
CF110BA, South Glamorgan
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-1%
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Used (2021) Audi A6 S-Line 204 HP | Super price

-Avant 40 TDI S Line 5dr Troni

  • 2021
  • 61,639 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
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Super price

£19,241
£19,490
TS247LD Hartlepool, Durham
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-10%
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Used (2024) Audi A6 Sport 204 HP | Super price

-Avant 40 TFSI Sport 5dr S

  • 2024
  • 31,306 miles
  • Trim levelSport
  • 2.0L Petrol
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg7.4
  • CO2171 g CO2/km comb.
  • Details
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Super price

£23,999
£26,699
PO35RS, Hampshire
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Showing 1 - 25 of 1,521 results

How much does the Audi A6 depreciate?

Used Audi A6

A used Audi A6 (2025) model gains about £102 per month in value.


Factors that affect the appreciation of a Audi A6:
- Mileage
- Age of the vehicle
- Number of previous owners
- Accidents or damage history
- Trim level, equipment, and options


Appreciation is an important part of calculating the total value of owning a Audi A6. In addition to the monthly appreciation of £102, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly value.

How much does a used Audi A6 cost? Prices, ratings and depreciation by model year

How much does a used Audi A6 cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Depreciation
(12 mth.)

Cars for sale

2026 Audi A6

£52,235 - £72,590£62,162-£5,000< 10

2025 Audi A6

£33,900 - £64,391£50,784+£1,220250

2024 Audi A6

£27,696 - £99,995£41,652-£7,38052

2023 Audi A6

£22,575 - £84,999£33,244-£5,380113

2020 Audi A6

£17,650 - £75,000£30,673+£3,34075

2022 Audi A6

£19,500 - £34,295£27,617-£2,140156

2021 Audi A6

£17,995 - £66,995£25,942-£2,200172

2019 Audi A6

£14,750 - £25,495£19,734-£980123

2018 Audi A6

£10,450 - £22,995£16,148-£1,620101

2017 Audi A6

£7,850 - £19,995£13,219-£1,12065

2016 Audi A6

£7,994 - £18,995£12,537-£72094

2009 Audi A6

£1,885 - £19,950£11,944+£4,140< 10

2015 Audi A6

£6,395 - £16,599£10,836-£6079

2014 Audi A6

£4,995 - £13,295£9,030-£52055

2012 Audi A6

£3,780 - £14,495£7,842+£4030

2013 Audi A6

£3,499 - £11,995£7,465-£1,14051

2006 Audi A6

£1,400 - £10,950£5,416+£1,00010

2007 Audi A6

£1,500 - £7,990£5,295+£18012

2005 Audi A6

£2,195 - £5,795£5,269+£18020

2011 Audi A6

£3,495 - £9,495£5,140-£96011

2008 Audi A6

£1,995 - £7,995£4,513+£240< 10

2010 Audi A6

£1,950 - £10,000£4,376+£14011

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 3 January 2026

Comparison of Audi A6 variants and prices

Below you can compare prices and depreciation for the 9 most popular Audi A6 variants. The table is updated daily with data from the market in United Kingdom.

Comparison of Audi A6 variants and prices

Variant

Price range*

Avg. Price

Depreciation
(12 mth.)

Cars for sale

📈 The best value

Audi A6 Advanced

£7,995 - £79,999£54,695+£36,80033

Audi A6 Design

£4,444 - £112,995£49,083+£20,72044

Audi A6 Sport

£14,940 - £55,603£26,504+£800194

Audi A6 Premium

£6,399 - £60,990£25,395-< 10
🏆 The most popular

Audi A6 S-Line

£5,995 - £57,495£25,334+£1,580613

Audi A6 Black Edition

£7,995 - £43,287£23,206-£6,220447

Audi A6 Comfort

£2,000 - £60,990£21,732+£2,50034

Audi A6 Business

£3,995 - £13,000£7,406-£1,180< 10
💰 The budget choice

Audi A6 Performance

£5,000 - £7,995£6,746-< 10

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Last updated: 3 January 2026

Which variant should you choose?

💰 The budget choice

The Performance is the cheapest entry point with an average price of £6,746.

Accuracy will improve as more cars from this variant become available

🏆 The most popular

There are the most S-Line for sale right now (613), which gives you the most options to choose from.

📈 The best value

The Advanced has held its price stable with minimal loss in value over the past year (+£36,800).

Audi A6 (model year 2025) - Price development for the last 12 months and price projection for the next 6 months (January 2025 - June 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2025 - January
£52,020
£49,740£54,300
Estimate
2025 - February
£52,660
£49,800£55,520
Estimate
2025 - March
£52,140
£48,980£55,300
Estimate
2025 - April
£52,980
£47,980£57,980
Estimate
2025 - May
£50,300
£45,260£55,340
Estimate
2025 - June
£48,780
£43,160£54,400
Estimate
2025 - July
£50,800
£44,100£57,500
Estimate
2025 - August
£51,700
£45,180£58,220
Estimate
2025 - September
£51,120
£45,540£56,680
Estimate
2025 - October
£53,340
£47,240£59,440
Estimate
2025 - November
£53,940
£47,580£60,320
Estimate
2025 - December
£53,240
£46,940£59,540
Estimate
2026 - February
£54,220
--
Forecast
2026 - March
£54,700
--
Forecast
2026 - April
£55,180
--
Forecast
2026 - May
£55,680
--
Forecast
2026 - June
£56,160
--
Forecast

All estimates and forecasts are based on actual market data

Last updated: 3 January 2026

Average Monthly Depreciation

A summary of the past 12 and an estimation of the next 6 months.

Past 12 months

£1,220

Next 6 months

£2,920

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Fair price

A bit pricey

Expensive

Should your next car be the incredibly popular Audi A6?

Audi A6 offers excellent driving comfort and its design has received various awards. AutoUncle offers an impressive selection of 1,828 cars in the UK compiled from different dealership websites and online marketplaces.

What is the price of a used Audi A6?

A used Audi A6 costs between £5,495 for the cheapest variant and £55,088 for the latest and most well-equipped model on AutoUncle.

The used car price for a Audi A6 can differ widely and depends on five primary factors: manufacturing year, engine capacity and performance, the car's fuel economy, how far the car has already travelled along with trim level.

For example, a newer model with fewer miles recorded, or a more luxurious variant with a powerful engine, typically commands a higher price than a car from an older model year, with higher mileage and no optional extras.

What are the available trim levels for the Audi A6?

The most popular equipment variants for the Audi A6 are:

When looking for the best car deal for a used Audi A6, it is important that you only compare with the sale prices of cars with a similar engine and equipment variant. If not, you may make a wrong conclusion on which car to acquire.

Which fuel variants are most in demand for the Audi A6?

The most popular fuel type for the Audi A6 is diesel.

Available fuel options:

  • Audi A6 diesel: 1,309 cars currently available with an average price of £20,820
  • Audi A6 petrol: 481 cars currently available with an average price of £28,403
  • Audi A6 plug-in hybrid: Currently there is 38 cars available on AutoUncle with an average price of £33,147

Consider your driving patterns carefully when selecting a fuel type. How many miles do you typically drive each week? Are your drives mostly short trips, or do you tend to embark on longer routes?

Electric cars, plug-in hybrids and petrol are great for short distances. For long daily driving, electric cars are a strong choice if you can charge. For longer daily commutes, a modern electric car is often suitable - especially if you can charge at home or at work. For very long daily driving without charging options, a diesel car can still be relevant. It’s worth noting that diesel engines with high emissions are banned from entering cities in certain countries.

What body types is the Audi A6 available in?

The Audi A6 comes in various body types, sedan being the most popular. Their four-door design means that saloons and sedans have long been popular with families. The distinct boot compartment ensures that luggage and other items are securely stored, away from the passenger cabin.

AutoUncle's selection of Audi A6 by body type, price and quantity for sale

  • Audi A6 sedan: 1,001 cars - average price £20,463
  • Audi A6 stationcar: 818 cars - average price £26,380
  • Audi A6 suv: 1 car - average price £19,950
  • Audi A6 coupe: 1 car - average price £5,000

Looking for something other than Audi A6?

Though the Audi A6 is among the best selling cars in its segment it has some competitors.

Preferred alternatives to the Audi A6

  • BMW 520
  • Vauxhall Insignia
  • Mercedes E220

The top competitor to the Audi A6 is the BMW 520. With an average sale price of £19,999 you can currently find 1,607 of these cars available for sale on AutoUncle.

Another alternative car is the Vauxhall Insignia with 1,433 cars for sale at the moment and with an average sales price of £5,995. The Mercedes E220 comes in as the third most popular choice with an average sales price of £15,495 and 1,307 car for sale at the moment in the UK.

Looking for a more eco-friendly alternative?

If you are looking for an electric car within the same car segment as the Audi A6, here are some few recommendations:

Haven't found an electric car that resonates with you? See all our available electric cars here.

All body types for Audi A6

All regions for Audi A6

All fuel types for Audi A6

All gear types for Audi A6