Used Audi A6 Avant for sale near Belfast
There are 23 used Audi A6 Avant for sale from UK dealers within 20 miles of Belfast on AskCar, as of 6 November 2026. Typical asking price £22,000 (the median: half cost less, half cost more). The cheapest is £9,495. AskCar lists 808 used Audi A6 Avant across the UK, from 592 dealerships.
The middle half of the 23 cars are priced between £18,200 and £29,500.
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 Belfast
6 of the 23 Audi A6 Avant within 20 miles of Belfast 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.
- 2016 Audi A6 Avant 2.0 TDI ultra S Line, 187 bhp, manual, diesel, estate, 5 doors, black. Mileage: 88,336 miles. Price: £9,495, unchanged since AskCar first saw it on 14 October 2026, 23 days ago. Good value: £986 (9%) under the AskCar estimate of £10,481. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 3 September 2027. Dealer: M H Motors in Newtownabbey, 7 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2016-9ce303852118
- 2023 Audi A6 Avant 2.0 TFSI Black Edition, 201 bhp, automatic, petrol, estate, 5 doors, grey. Mileage: 19,831 miles. Price: £28,995, unchanged since AskCar first saw it on 4 September 2026, 63 days ago. Fair price: £1,000 (3%) under the AskCar estimate of £29,995. Euro 6 emissions standard. ULEZ compliant. Dealer: RPM Motors (N.I.) in Belfast, 12 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-6d583cc02d03
- 2023 Audi A6 Avant 2.0 TDI Black Edition, 201 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 28,800 miles. Price: £29,995, reduced by £1,505 from £31,500 since AskCar first saw it on 16 September 2026, 51 days ago. Fair price: £746 (2%) under the AskCar estimate of £30,741. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 May 2027. Dealer: Ballyrobert Mallusk in Belfast, 6 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-b71484ba3faa
- 2020 Audi A6 Avant 2.0 TFSI Black Edition, 242 bhp, automatic, petrol, estate, white. Mileage: 52,410 miles. Price: £24,995, unchanged since AskCar first saw it on 29 October 2026, 8 days ago. Fair price: £522 (2%) under the AskCar estimate of £25,517. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 September 2027. Dealer: Burch Autos in Newtownards, 9 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-f3c75d4e60dd
- 2024 Audi A6 Avant 2.0 TFSI Black Edition, 261 bhp, automatic, petrol, estate, 5 doors, black. Mileage: 7,700 miles. Price: £37,950, reduced by £2,000 from £39,950 since AskCar first saw it on 28 May 2026, 162 days ago. Fair price: £728 (1%) under the AskCar estimate of £38,678. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Carnet Car Sales in Larne, 18 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2024-e30fbbfdabfb
- 2020 Audi A6 Avant 2.0 TDI S Line, 201 bhp, automatic, diesel, estate, 5 doors, black. Mileage: 42,068 miles. Price: £22,207, reduced by £530 from £22,737 since AskCar first saw it on 27 August 2026, 71 days ago. Fair price: £327 (1%) under the AskCar estimate of £22,534. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 21 August 2027. Dealer: Lookers in Belfast, 6 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-99ca4a94e24a
- 2017 Audi A6 Avant 2.0 TDI ultra Black Edition, 187 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 81,000 miles. Price: £14,250, unchanged since AskCar first saw it on 3 October 2026, 34 days ago. Fair price: £207 (1%) under the AskCar estimate of £14,457. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 October 2027. Dealer: Premier Cars in Belfast, 1 mile from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2017-86a8811c163c
- 2023 Audi A6 Avant 2.0 TDI S Line, 201 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 23,503 miles. Price: £29,749, reduced by £746 from £30,495 since AskCar first saw it on 5 September 2026, 62 days ago. Fair price: £178 (under 1%) under the AskCar estimate of £29,927. Euro 6 emissions standard. ULEZ compliant. Dealer: Ballyrobert Mallusk in Belfast, 6 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-3dc2896ceb02
- 2023 Audi A6 Avant 2.0 TDI S Line, 201 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 23,503 miles. Price: £29,750, reduced by £1,245 from £30,995 since AskCar first saw it on 2 July 2026, 127 days ago. Fair price: £177 (under 1%) under the AskCar estimate of £29,927. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 9 March 2027. Dealer: Ballyrobert Mallusk in Belfast, 6 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-d91940c40f87
- 2023 Audi A6 Avant 2.0 TDI Black Edition, 201 bhp, automatic, diesel, estate, 5 doors, black. Mileage: 35,399 miles. Price: £29,995, reduced by £699 from £30,694 since AskCar first saw it on 5 September 2026, 62 days ago. Fair price: £329 (1%) over the AskCar estimate of £29,666. Euro 6 emissions standard. ULEZ compliant. Dealer: Ballyrobert Mallusk in Belfast, 6 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-9e780a579b6b
- 2023 Audi A6 Avant 2.0 TDI Black Edition, 201 bhp, automatic, diesel, estate, 5 doors, black. Mileage: 35,399 miles. Price: £29,995, reduced by £1,955 from £31,950 since AskCar first saw it on 16 July 2026, 113 days ago. Fair price: £329 (1%) over the AskCar estimate of £29,666. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 July 2027. Dealer: Ballyrobert Mallusk in Belfast, 6 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-bb92b97cf0aa
- 2019 Audi A6 Avant 2.0 TDI S Line, 201 bhp, automatic, diesel, estate, 5 doors, silver. Mileage: 63,000 miles. Price: £19,950, unchanged since AskCar first saw it on 9 September 2026, 58 days ago. Fair price: £271 (1%) over the AskCar estimate of £19,679. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 March 2027. Dealer: Prestige Marques in Ballynahinch, 17 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-7c01c8eb223e
- 2023 Audi A6 Avant 2.0 TFSI S Line, 201 bhp, automatic, petrol, estate, 5 doors, grey. Mileage: 17,256 miles. Price: £27,990, unchanged since AskCar first saw it on 5 November 2026, 1 day ago. Fair price: £479 (1%) over the AskCar estimate of £27,511. Euro 6 emissions standard. ULEZ compliant. Dealer: Agnew Group Belfast Audi in Belfast, 1 mile from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2023-442c2e9aedb4
- 2020 Audi A6 Avant 2.0 TDI S Line, 201 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 74,000 miles. Price: £18,750, reduced by £700 from £19,450 since AskCar first saw it on 30 September 2026, 37 days ago. Fair price: £360 (1%) over the AskCar estimate of £18,390. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 4 November 2026; ask the dealer for the current MOT. Dealer: The Car Company in Belfast, 4 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-e456e1599691
- 2019 Audi A6 Avant 2.0 TDI S Line, 201 bhp, automatic, diesel, estate, 5 doors, blue. Mileage: 67,000 miles. Price: £19,950, unchanged since AskCar first saw it on 7 October 2026, 30 days ago. Fair price: £841 (4%) over the AskCar estimate of £19,109. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 24 October 2026; ask the dealer for the current MOT. Dealer: Prestige Marques in Ballynahinch, 17 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-8805f6a859ae
- 2019 Audi A6 Avant 2.0 TDI S Line, 201 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 61,483 miles. Price: £20,790, unchanged since AskCar first saw it on 29 October 2026, 8 days ago. Fair price: £891 (4%) over the AskCar estimate of £19,899. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 19 September 2027. Dealer: Agnew Group Belfast Audi in Belfast, 1 mile from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-95ebd5cec459
- 2019 Audi A6 Avant 2.0 TDI Black Edition, 201 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 82,569 miles. Price: £18,450, unchanged since AskCar first saw it on 24 October 2026, 13 days ago. Fair price: £908 (5%) over the AskCar estimate of £17,542. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 November 2026. Dealer: Jack Reid Cars in Carrickfergus, 13 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-2b282399d691
- 2019 Audi A6 Avant 2.0 TDI Sport, 201 bhp, automatic, diesel, estate, 5 doors, white. Mileage: 79,500 miles. Price: £15,495, unchanged since AskCar first saw it on 9 October 2026, 28 days ago. Fair price: £856 (5%) over the AskCar estimate of £14,639. Euro 6 emissions standard. ULEZ compliant. Dealer: Mallusk Auto Centre in Newtownabbey, 7 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-d3751166a31e
- 2017 Audi A6 Avant 2.0 TDI ultra Black Edition, 187 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 83,769 miles. Price: £14,995, unchanged since AskCar first saw it on 24 October 2026, 13 days ago. Fair price: £829 (5%) over the AskCar estimate of £14,166. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 September 2027. Dealer: HMK Car Sales in Belfast, 4 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2017-527001898358
- 2017 Audi A6 Avant 2.0 TDI ultra SE Executive, 187 bhp, manual, diesel, estate, 5 doors, silver. Mileage: 72,000 miles. Price: £11,750, unchanged since AskCar first saw it on 3 October 2026, 34 days ago. Fair price: £806 (7%) over the AskCar estimate of £10,944. Euro 6 emissions standard. ULEZ compliant. Dealer: Philip Gribben Cars in Lisburn, 12 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2017-ea4d7e581ab4
- 2022 Audi A6 Avant 2.0 TDI Black Edition, 201 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 83,318 miles. Price: £22,945, reduced by £500 from £23,445 since AskCar first saw it on 9 August 2026, 89 days ago. Fair price: £1,687 (7%) over the AskCar estimate of £21,258. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 22 August 2026; ask the dealer for the current MOT. Dealer: Morgan Cars and Commercials in Ballyclare, 11 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2022-440881a45a62
- 2021 Audi A6 Avant 2.0 TDI Black Edition, 201 bhp, automatic, diesel, estate, 5 doors, silver. Mileage: 51,000 miles. Price: £26,995, unchanged since AskCar first saw it on 27 October 2026, 10 days ago. Above the going rate: £3,447 (14%) over the AskCar estimate of £23,548. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 March 2027. Dealer: Empire Autos NI in Craigavon, 15 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-04cdd0c08d13
- 2019 Audi A6 Avant 2.0 TDI S Line, 201 bhp, automatic, diesel, estate, 5 doors, blue. Mileage: 92,500 miles. Price: £17,995, unchanged since AskCar first saw it on 27 October 2026, 10 days ago. Above the going rate: £2,152 (13%) over the AskCar estimate of £15,843. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 December 2026. Dealer: Empire Autos NI in Craigavon, 15 miles from Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2019-79bb7434bbbf
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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