Audi A6 Valuation: 1,411 used car listings analysed

Market overviewFebruary Market Guide: A used Audi A6 in the UK typically costs between £5,650 and £59,300. The most sought-after versions of the Audi A6 are S-Line, Black Edition, Sport. Regarding durability, we see high-mileage examples reaching up to 132,000 miles. Currently, 319 Audi A6 listings are priced below the UK market average (based on 42 websites)

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Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

New

New (2025) Audi A6 S-Line 204 HP | Good price

-2.0 TFSI 204 S line 4dr Troni

  • 2025
  • 0 miles
  • Trim levelS-Line
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg7.1
  • CO2160 g CO2/km comb.
  • Details
autouncle-certified

Good price

£54,013
£52,697
Verified Marketplace
L59XN Nottingham, Merseyside
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Availability verified
-6%
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
autouncle-certified

Super price

£17,499
£18,799
Verified Marketplace
CW73AL, Cheshire
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Availability verified
-5%
1 / 4

Used (2020) Audi A6 Sport 265 HP | Good price

SALOON 45 TFSI 265 Quattro Sport

  • 2020
  • 23,140 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 265 HP (194 kW)
  • mpg7.5
  • CO2173 g CO2/km comb.
  • Details
autouncle-certified

Good price

£20,399
£21,599
Verified Marketplace
CW73AL, Cheshire
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1 / 3

Used (2021) Audi A6 S-Line 286 HP | Super price

- Avant 50 TDI Quattro S Line 5dr

  • 2021
  • 73,640 miles
  • Trim levelS-Line
  • 3.0L Diesel
  • Estate
  • Automatic
  • 286 HP (210 kW)
  • mpg6.9
  • CO2184 g CO2/km comb.
  • Details
autouncle-certified

Super price

£21,850
£21,750
Verified Marketplace
WD33RT Watford, Hertfordshire
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-7%
1 / 3

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
autouncle-certified

Good price

£21,399
£23,199
Verified Marketplace
CW73AL, Cheshire
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Availability verified
-13%
1 / 1

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

40 TFSI Sport 5dr S Tronic [Tech

  • 2022
  • 106,070 miles
  • Trim levelSport
  • 2.0L Petrol
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg7.3
  • CO2167 g CO2/km comb.
  • Details
autouncle-certified

Super price

£15,595
£17,995
Verified Marketplace
S802QD Hinckley, Nottinghamshire
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Availability verified
-17%
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)
  • mpg40.0
  • CO2162 g CO2/km comb.
  • Details
autouncle-certified

Super price

£21,745
£26,476
Verified Marketplace
KY127RD
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Availability verified
-2%
1 / 4

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

SALOON 40 TFSI Sport 4dr S Tronic

  • 2022
  • 11,250 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg7.1
  • CO2162 g CO2/km comb.
  • Details
autouncle-certified

Super price

£22,499
£22,999
Verified Marketplace
CW73AL, Cheshire
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New

Used (2018) Audi A6 S-Line 190 HP | Super price

- 2.0 TDI Ultra S Line 4dr

  • 2018
  • 41,610 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 190 HP (139 kW)
  • mpg4.4
  • CO2114 g CO2/km comb.
  • Details
autouncle-certified

Super price

£13,499
Verified Marketplace
IP256HW, Norfolk
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New
1 / 4

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

40 TFSI Sport 5dr S Tronic

  • 2021
  • 24,838 miles
  • Trim levelSport
  • 2.0L Petrol
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg7.3
  • CO2168 g CO2/km comb.
  • Details
autouncle-certified

Good price

£23,349
Verified Marketplace
SA7 9AG Llansamlet
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-1%
1 / 4

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

- Avant 40 TDI S Line 5dr

  • 2021
  • 54,000 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
autouncle-certified

Super price

£19,900
£20,200
Verified Marketplace
CM94LL, Essex
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-1%
1 / 4

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

- 40 TFSI Sport 4dr S Tronic

  • 2021
  • 47,488 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg7.1
  • CO2163 g CO2/km comb.
  • Details
autouncle-certified

Super price

£17,649
£17,949
Verified Marketplace
NP194SS
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1 / 4

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

40 TFSI Sport 4dr S Tronic [Tech

  • 2022
  • 34,124 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg7.1
  • CO2162 g CO2/km comb.
  • Details
autouncle-certified

Super price

£20,649
Verified Marketplace
G329QA
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1 / 4

Used (2017) Audi A6 S-Line 190 HP | Good price

2.0 TDI ultra S line Saloon 4dr

  • 2017
  • 55,600 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 190 HP (139 kW)
  • mpg4.4
  • CO2114 g CO2/km comb.
  • Details
autouncle-certified

Good price

£13,550
£13,650
Verified Marketplace
DE655FJ Hilton, Derbyshire
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1 / 4

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

40 tfsi sport 5dr s tronic [tech

  • 2023
  • 38,901 miles
  • Trim levelSport
  • 2.0L Petrol
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg7.3
  • CO2167 g CO2/km comb.
  • Details
autouncle-certified

Good price

£23,883
£23,987
Verified Marketplace
LE115HN Loughborough, Leicestershire
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1 / 1

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

- Avant 40 TFSI Sport 5dr S Tronic

  • 2023
  • 42,876 miles
  • Trim levelSport
  • 2.0L Petrol
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg7.3
  • CO2167 g CO2/km comb.
  • Details
autouncle-certified

Super price

£21,995
Verified Marketplace
SG61TD, Hertfordshire
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1 / 2

Used (2018) Audi A6 Design 190 HP | Good price

- Avant 2.0 TDI Ultra SE Executive

  • 2018
  • 144,900 miles
  • Trim levelDesign
  • 2.0L Diesel
  • Estate
  • Manual
  • 190 HP (139 kW)
  • mpg4.5
  • CO2118 g CO2/km comb.
  • Details
autouncle-certified

Good price

£6,995
Verified Marketplace
LE103DJ Hinckley, Leicestershire
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-6%
1 / 4

Used (2020) Audi A6 Sport 204 HP | Super price

Saloon 2020 | 2.0 TDI 40 Sport S

  • 2020
  • 27,798 miles
  • Trim levelSport
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg5.4
  • CO2142 g CO2/km comb.
  • Details
autouncle-certified

Super price

£20,100
£21,500
Verified Marketplace
ME59QG, Kent
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-1%
1 / 2

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

40 TFSI Sport 4dr S Tronic

  • 2021
  • 56,457 miles
  • Trim levelSport
  • 2.0L Petrol
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg7.1
  • CO2163 g CO2/km comb.
  • Details
autouncle-certified

Super price

£16,511
£16,742
Verified Marketplace
WS118XR, Staffordshire
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-4%
1 / 4

Used (2018) Audi A6 S-Line 190 HP | Good price

- Avant 2.0 TDI Ultra S Line 5dr

  • 2018
  • 57,725 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 190 HP (139 kW)
  • mpg4.5
  • CO2118 g CO2/km comb.
  • Details
autouncle-certified

Good price

£14,050
£14,650
Verified Marketplace
DE655FJ Hilton, Derbyshire
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-2%
1 / 4

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

- 40 TDI S Line 4dr Tronic

  • 2021
  • 57,500 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 204 HP (150 kW)
  • mpg5.4
  • CO2142 g CO2/km comb.
  • Details
autouncle-certified

Good price

£17,995
£18,495
Verified Marketplace
CM73JQ, Essex
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-5%
1 / 4

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

- Avant 40 TDI S Line 5dr

  • 2021
  • 45,346 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
autouncle-certified

Good price

£21,150
£22,350
Verified Marketplace
DE655FJ Hilton, Derbyshire
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-2%
1 / 4

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

- Avant 40 TDI S Line 5dr

  • 2021
  • 66,130 miles
  • Trim levelS-Line
  • 2.0L Diesel
  • Estate
  • Automatic
  • 204 HP (150 kW)
  • mpg5.7
  • CO2149 g CO2/km comb.
  • Details
autouncle-certified

Super price

£18,750
£19,300
Verified Marketplace
DE655FJ Hilton, Derbyshire
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1 / 4

Used (2021) Audi A6 S-Line 286 HP | Good price

- Avant 50 TDI Quattro S Line 5dr

  • 2021
  • 77,381 miles
  • Trim levelS-Line
  • 3.0L Diesel
  • Estate
  • Automatic
  • 286 HP (210 kW)
  • mpg6.9
  • CO2184 g CO2/km comb.
  • Details
autouncle-certified

Good price

£22,995
Verified Marketplace
CA12UR, Cumbria
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-19%
1 / 4

Used (2018) Audi A6 190 HP | Super price

-2.0 TDI Ultra SE Executive 4dr S

  • 2018
  • 141,700 miles
  • 2.0L Diesel
  • Sedan
  • Automatic
  • 190 HP (139 kW)
  • mpg4.4
  • CO2114 g CO2/km comb.
  • Details
autouncle-certified

Super price

£6,000
£7,450
Verified Marketplace
B946AB West Midlands, West Midlands
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Showing 1 - 25 of 1,411 results

How much does the Audi A6 depreciate?

Used Audi A6

A used Audi A6 (2025) model gains about £42 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 £42, 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

Median Mileage

Depreciation
(12 mth.)

Cars for sale

2026 Audi A6

£48,871 - £74,300£59,8910 miles-£5,00014

2025 Audi A6

£37,491 - £63,755£50,4523,000 miles+£500216

2024 Audi A6

£28,985 - £104,750£43,11411,981 miles-£6,80041

2020 Audi A6

£16,499 - £75,000£33,07648,177 miles+£5,52086

2023 Audi A6

£20,595 - £41,510£31,27926,916.5 miles-£5,22092

2022 Audi A6

£18,600 - £32,301£25,93335,500 miles-£1,640143

2021 Audi A6

£17,015 - £32,449£24,89447,535 miles-£2,680170

2019 Audi A6

£14,490 - £25,650£19,50668,051 miles-£1,340131

2018 Audi A6

£9,999 - £22,995£15,78073,978.5 miles-£1,300113

2017 Audi A6

£9,650 - £19,995£14,24670,651 miles-£74050

2016 Audi A6

£7,990 - £16,495£12,04892,000 miles-£60084

2009 Audi A6

£1,850 - £19,950£11,82578,000 miles-< 10

2015 Audi A6

£7,250 - £15,499£11,072100,353 miles-£26068

2014 Audi A6

£4,995 - £16,995£9,55096,000 miles-£44048

2012 Audi A6

£3,995 - £14,495£8,162108,000 miles+£20028

2013 Audi A6

£4,500 - £8,995£7,250107,000 miles-£1,30044

2007 Audi A6

£2,990 - £5,995£5,454127,222.5 miles+£92010

2006 Audi A6

£1,970 - £5,995£5,097144,000 miles-< 10

2010 Audi A6

£2,495 - £10,000£5,082130,500 miles+£440< 10

2011 Audi A6

£2,795 - £7,500£4,766109,000 miles-£96012

2008 Audi A6

£1,650 - £7,995£4,166125,212.5 miles-< 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: 1 February 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

Median Mileage

Depreciation
(12 mth.)

Cars for sale

📈 The best value

Audi A6 Advanced

£7,490 - £83,995£54,52430,615 miles+£32,62037

Audi A6 Design

£5,950 - £105,950£41,90153,000 miles+£31,04045

Audi A6 Performance

£5,000 - £104,750£38,12173,181 miles-< 10

Audi A6 Competition

£27,998 - £32,301£30,83014,752 miles-< 10

Audi A6 Comfort

£3,250 - £60,990£30,17642,206 miles+£10,94026

Audi A6 Sport

£14,385 - £57,384£26,31133,030 miles+£2,980231
🏆 The most popular

Audi A6 S-Line

£6,150 - £55,225£24,90855,504 miles+£2,420564

Audi A6 Black Edition

£7,995 - £42,500£22,40159,704.5 miles-£6,800372
💰 The budget choice

Audi A6 Business

£3,995 - £51,750£14,515114,159.5 miles-£500< 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: 1 February 2026

Which variant should you choose?

💰 The budget choice

The Business is the cheapest entry point with an average price of £14,515.

Accuracy will improve as more cars from this variant become available

🏆 The most popular

There are the most S-Line for sale right now (564), 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 (+£32,620).

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

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

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 - January
£53,160
£47,280£59,060
Estimate
2026 - March
£53,760
--
Forecast
2026 - April
£54,040
--
Forecast
2026 - May
£54,340
--
Forecast
2026 - June
£54,640
--
Forecast
2026 - July
£54,920
--
Forecast

All estimates and forecasts are based on actual market data

Last updated: 1 February 2026

Average Monthly Depreciation

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

Past 12 months

£500

Next 6 months

£1,760

autouncle-certified

Price checked by AutoUncle

Super price

Good price

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