Used Audi A6 Avant for sale near Buckingham
There are 14 used Audi A6 Avant for sale from UK dealers within 20 miles of Buckingham on AskCar, as of 6 November 2026. Typical asking price £21,500 (the median: half cost less, half cost more). The cheapest is £1,295. AskCar lists 808 used Audi A6 Avant across the UK, from 592 dealerships.
The middle half of the 14 cars are priced between £9,600 and £26,000.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
Price reductions near Buckingham
6 of the 14 Audi A6 Avant within 20 miles of Buckingham had their price reduced in the last 14 days to 6 November 2026. Each one's line in the list below says by how much.
Cars for sale now
Best value first: the cars priced furthest below their AskCar estimate come first, and those without one come after. The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 783 priced Audi A6 Avant adverts on AskCar as of 6 November 2026.
Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer, town and distance; AskCar page.
Cheaper cars like each one, with its price history, are on its AskCar page.
- 2017 Audi A6 Avant 2.0, 187 bhp, automatic, diesel, estate, 5 doors, silver. Mileage: 156,855 miles. Price: £5,995, unchanged since AskCar first saw it on 25 September 2026, 42 days ago. Good value: £1,672 (21%) under the AskCar estimate of £7,667. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 June 2027. Dealer: Hampton Car Sales in Milton Malsor, 14 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2017-3f8d798217ce
- 2011 Audi A6 Avant 2.7 TDI V6 S Line Special Edition, 187 bhp, automatic, diesel, estate, 5 doors, blue. Mileage: 104,061 miles. Price: £4,295, unchanged since AskCar first saw it on 30 October 2026, 7 days ago. Good value: £950 (18%) under the AskCar estimate of £5,245. Euro 5 emissions standard. MOT: the latest record we hold ran out on 18 October 2026; ask the dealer for the current MOT. Dealer: John Autos in Leighton Buzzard, 15 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2011-dcc04eace0de
- 2025 Audi A6 Avant 2.0 TFSI Black Edition, 201 bhp, automatic, petrol, estate, 5 doors, black. Mileage: 17,423 miles. Price: £31,790, unchanged since AskCar first saw it on 6 November 2026. Fair price: £2,627 (7%) under the AskCar estimate of £34,417. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Stratstone Milton Keynes Audi in Milton Keynes, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2025-11f9219f1068
- 2019 Audi A6 Avant 3.0 TDI V6, automatic, diesel, estate, 5 doors, white. Mileage: 55,000 miles. Price: £20,990, reduced by £1,500 from £22,490 since AskCar first saw it on 21 September 2026, 46 days ago. Fair price: £1,551 (6%) under the AskCar estimate of £22,541. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 June 2027. Dealer: Highfield Motors Wheatley Car Centre in Kidlington, 19 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-8f048ee27fc8
- 2023 Audi A6 Avant 2.0 TFSI Sport, 201 bhp, automatic, petrol, estate, 5 doors, black. Mileage: 44,500 miles. Price: £19,990, reduced by £300 from £20,290 since AskCar first saw it on 23 October 2026, 14 days ago. Fair price: £1,335 (6%) under the AskCar estimate of £21,325. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 July 2027. Dealer: Wheatley Car Centre in Wheatley, 19 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-16f3661693c8
- 2026 Audi A6 Avant 2.0 e-hybrid Edition 1, 295 bhp, automatic, plug-in hybrid (petrol), estate, 5 doors, grey. Mileage: 197 miles. Price: £53,995, unchanged since AskCar first saw it on 6 November 2026. Fair price: £3,563 (6%) under the AskCar estimate of £57,558. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Stratstone Milton Keynes Audi in Milton Keynes, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2026-91b205b67dd3
- 2023 Audi A6 Avant 2.0 TFSI Black Edition, 201 bhp, automatic, petrol, estate, 5 doors, black. Mileage: 41,178 miles. Price: £26,200, reduced by £391 from £26,591 since AskCar first saw it on 17 September 2026, 50 days ago. Fair price: £714 (2%) under the AskCar estimate of £26,914. Euro 6 emissions standard. ULEZ compliant. Dealer: Carsa Towcester in Towcester, 10 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-3558fdbfdc90
- 2023 Audi A6 Avant 2.0 TFSI Sport, 201 bhp, automatic, petrol, estate, 5 doors, black. Mileage: 31,366 miles. Price: £21,890, reduced by £3,100 from £24,990 since AskCar first saw it on 26 September 2026, 41 days ago. Fair price: £377 (1%) under the AskCar estimate of £22,267. Euro 6 emissions standard. ULEZ compliant. Dealer: Stratstone Milton Keynes Audi in Milton Keynes, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-edf7d4f56143
- 2026 Audi A6 Avant 2.0 TDI S Line, 201 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 6,000 miles. Price: £42,773, reduced by £4,480 from £47,253 since AskCar first saw it on 14 July 2026, 115 days ago. Fair price: £436 (1%) under the AskCar estimate of £43,209. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Vindis Group Northampton Audi in Northampton, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2026-338e6213e203
- 2021 Audi A6 Avant 2.0 TFSI Black Edition, 201 bhp, automatic, petrol, estate, 5 doors, black. Mileage: 37,388 miles. Price: £24,500, reduced by £273 from £24,773 since AskCar first saw it on 11 August 2026, 87 days ago. Fair price: £188 (under 1%) under the AskCar estimate of £24,688. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 19 October 2026; ask the dealer for the current MOT. Dealer: Gbi Cars in Leighton Buzzard, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-72a47e57677b
- 2016 Audi A6 Avant 2.0 TDI ultra Black Edition, 187 bhp, automatic, diesel, estate, 5 doors, black. Mileage: 122,000 miles. Price: £9,995, unchanged since AskCar first saw it on 21 October 2026, 16 days ago. Fair price: £241 (2%) over the AskCar estimate of £9,754. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 20 October 2027. Dealer: Level Autos in Aylesbury, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2016-d499e28bf875
- 2009 Audi A6 Avant 2.7 TDI S Line, 187 bhp, automatic, diesel, estate, 5 doors, black. Mileage: 217,500 miles. Price: £1,295, reduced by £200 from £1,495 since AskCar first saw it on 28 October 2026, 9 days ago. Far below the going rate: £2,641 (67%) under the AskCar estimate of £3,936. Worth asking the dealer why. Euro 5 emissions standard. MOT: valid until 8 June 2027. Dealer: Newton Carz in Newton Longville, 9 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2009-b4046ebcd88f
- 2015 Audi A6 Avant 2.8, automatic, petrol, estate, 5 doors, white. Mileage: 48,000 miles. Price: £9,495, unchanged since AskCar first saw it on 1 November 2026, 5 days ago. Far below the going rate: £3,474 (26%) under the AskCar estimate of £12,969. Worth asking the dealer why. Euro 5 emissions standard. ULEZ compliant. Dealer: JST Automotive in Oxford, 8 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2015-054f76c80a07
- 2021 Audi A6 Avant 2.0 TDI Black Edition, 201 bhp, automatic, diesel, estate, 5 doors, black. Mileage: 36,461 miles. Price: £24,999, unchanged since AskCar first saw it on 5 November 2026, 1 day ago. Fair price: £544 (2%) under the AskCar estimate of £25,543. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 May 2027. Dealer: Carherts in Aylesbury, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-bc6869867511
Audi A6 Avant across the UK by price
- Under £5,000 (39 cars)
- Under £8,000 (93 cars)
- Under £10,000 (155 cars)
- Under £15,000 (312 cars)
- Under £20,000 (483 cars)
- Under £30,000 (688 cars)
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