Used Audi S4 Avant for sale near Watford
There are 20 used Audi S4 Avant for sale from UK dealers within 20 miles of Watford on AskCar, as of 9 November 2026. Typical asking price £22,500 (the median: half cost less, half cost more). The cheapest is £7,480. AskCar lists 127 used Audi S4 Avant across the UK, from 115 dealerships.
The middle half of the 20 cars are priced between £19,700 and £25,000.
As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
Price reductions near Watford
2 of the 20 Audi S4 Avant within 20 miles of Watford had their price reduced in the last 14 days to 9 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 126 priced Audi S4 Avant adverts on AskCar as of 9 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.
- 2018 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, blue. Mileage: 90,000 miles. Price: £17,295, reduced by £1,200 from £18,495 since AskCar first saw it on 11 August 2026, 90 days ago. Good value: £1,836 (9%) under the AskCar estimate of £19,131. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 19 March 2027. Dealer: Noya Cars in Barnet, 6 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2018-15b00292aee6
- 2018 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, black. Mileage: 46,667 miles. Price: £23,499, reduced by £1,500 from £24,999 since AskCar first saw it on 27 July 2026, 105 days ago. Fair price: £1,754 (6%) under the AskCar estimate of £25,253. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 22 October 2026; ask the dealer for the current MOT. Dealer: Gates Of Waltham Cross in Waltham Cross, 16 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2018-141bcbbbe9a2
- 2023 Audi S4 Avant 3.0 TDI V6 Black Edition, 336 bhp, automatic, diesel, estate, 5 doors, black. Mileage: 23,500 miles. Price: £36,950, unchanged since AskCar first saw it on 27 October 2026, 13 days ago. Fair price: £2,662 (6%) under the AskCar estimate of £39,612. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 February 2027. Dealer: Boss Motor Company in Chesham, 9 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2023-1d7abf32d4cd
- 2018 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, black. Mileage: 60,400 miles. Price: £21,995, reduced by £955 from £22,950 since AskCar first saw it on 18 July 2026, 114 days ago. Fair price: £1,501 (6%) under the AskCar estimate of £23,496. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 July 2027. Dealer: Harris-Mayes Country Cars in Rickmansworth, 4 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2018-08d38682798c
- 2017 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors. Mileage: 92,357 miles. Price: £18,279, unchanged since AskCar first saw it on 4 August 2026, 97 days ago. Fair price: £903 (4%) under the AskCar estimate of £19,182. Euro 6 emissions standard. ULEZ compliant. Dealer: EPS Cars in Watford, 1 mile from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2017-cb382bce66cd
- 2017 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, black. Mileage: 75,300 miles. Price: £20,990, unchanged since AskCar first saw it on 6 October 2026, 34 days ago. Fair price: £603 (2%) under the AskCar estimate of £21,593. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 26 October 2026; ask the dealer for the current MOT. Dealer: Milestone Automotive in Luton, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2017-f9a19552b26c
- 2019 Audi S4 Avant 3.0 TDI V6 Black Edition, 342 bhp, automatic, diesel, estate, 5 doors, black. Mileage: 56,600 miles. Price: £27,847, reduced by £2,142 from £29,989 since AskCar first saw it on 12 September 2026, 58 days ago. Fair price: £499 (1%) under the AskCar estimate of £28,346. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 2 October 2026; ask the dealer for the current MOT. Dealer: FTR Performance in Tring, 17 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2019-f5610706c180
- 2011 Audi S4 Avant 3.0 TFSI V6, 328 bhp, manual, petrol, estate, 5 doors, blue. Mileage: 123,000 miles. Price: £7,480, reduced by £15 from £7,495 since AskCar first saw it on 6 July 2026, 126 days ago. Fair price: £77 (1%) under the AskCar estimate of £7,557. Euro 5 emissions standard. ULEZ compliant. Dealer: Brookmans Motor Group in Hatfield, 9 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2011-c989581cc899
- 2014 Audi S4 Avant 3.0 TFSI V6 Black Edition, 328 bhp, automatic, petrol, estate, 5 doors, grey. Mileage: 54,285 miles. Price: £17,489, reduced by £500 from £17,989 since AskCar first saw it on 17 September 2026, 53 days ago. Fair price: £176 (1%) over the AskCar estimate of £17,313. Euro 5 emissions standard. ULEZ compliant. MOT: valid until 23 June 2027. Dealer: Stirling Cars in Hoddesdon, 19 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2014-ce7294cba6bd
- 2017 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, grey. Mileage: 82,500 miles. Price: £20,999, unchanged since AskCar first saw it on 28 May 2026, 165 days ago. Fair price: £459 (2%) over the AskCar estimate of £20,540. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 10 June 2027. Dealer: Sapphire Motors in London, 6 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2017-6cc6ee8caa74
- 2018 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, blue. Mileage: 56,500 miles. Price: £24,889, reduced by £400 from £25,289 since AskCar first saw it on 1 October 2026, 39 days ago. Fair price: £895 (3%) over the AskCar estimate of £23,994. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 15 July 2027. Dealer: Stonebrook Motors in Hillingdon, 13 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2018-008bb2dd3dbc
- 2018 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, grey. Mileage: 66,000 miles. Price: £23,500, unchanged since AskCar first saw it on 22 October 2026, 18 days ago. Fair price: £900 (3%) over the AskCar estimate of £22,600. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 March 2027. Dealer: FS Performance in Luton, 18 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2018-d09491b09195
- 2018 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, black. Mileage: 90,000 miles. Price: £19,995, unchanged since AskCar first saw it on 1 July 2026, 131 days ago. Fair price: £864 (4%) over the AskCar estimate of £19,131. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 28 October 2026; ask the dealer for the current MOT. Dealer: SSS Car Sales in London, 19 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2018-bfcf4ddea824
- 2017 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, blue. Mileage: 90,000 miles. Price: £20,495, reduced by £1,000 from £21,495 since AskCar first saw it on 13 July 2026, 119 days ago. Fair price: £997 (5%) over the AskCar estimate of £19,498. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 February 2027. Dealer: SSS Car Sales in London, 19 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2017-c6ffc345c639
- 2018 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, white. Mileage: 100,186 miles. Price: £18,995, reduced by £500 from £19,495 since AskCar first saw it on 14 August 2026, 87 days ago. Fair price: £1,168 (6%) over the AskCar estimate of £17,827. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 February 2027. Dealer: Motornova in Windsor, 15 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2018-7b1cd003f83e
- 2024 Audi S4 Avant 3.0 TDI V6 Vorsprung, 342 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 19,706 miles. Price: £49,000, unchanged since AskCar first saw it on 29 October 2026, 11 days ago. Fair price: £3,365 (7%) over the AskCar estimate of £45,635. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Group West London Audi in London, 12 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2024-8f288bd59242
- 2017 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, grey. Mileage: 67,000 miles. Price: £24,950, unchanged since AskCar first saw it on 20 October 2026, 20 days ago. Above the going rate: £2,076 (9%) over the AskCar estimate of £22,874. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 20 January 2027. Dealer: Fontain.Co.Uk in Iver, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2017-f57bf83c4bcd
- 2016 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, grey. Mileage: 65,000 miles. Price: £23,395, reduced by £1,555 from £24,950 since AskCar first saw it on 31 August 2026, 70 days ago. Above the going rate: £2,123 (9%) over the AskCar estimate of £21,272. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 12 October 2026; ask the dealer for the current MOT. Dealer: Fontain.Co.Uk in Iver, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2016-89f49f8b5b62
- 2022 Audi S4 Avant 3.0 TDI V6 Vorsprung, automatic, diesel, estate, 5 doors, black. Mileage: 25,700 miles. Price: £41,500, unchanged since AskCar first saw it on 22 October 2026, 18 days ago. Above the going rate: £4,765 (12%) over the AskCar estimate of £36,735. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 November 2026. Dealer: Sytner Group West London Audi in London, 12 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2022-11620bc63cf7
- 2017 Audi S4 Avant 3.0 TFSI V6, 349 bhp, automatic, petrol, estate, 5 doors, silver. Mileage: 84,000 miles. Price: £23,950, unchanged since AskCar first saw it on 1 November 2026, 8 days ago. Above the going rate: £3,622 (17%) over the AskCar estimate of £20,328. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 December 2026. Dealer: Fontain.Co.Uk in Iver, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/audi-s4-avant-2017-2528a719a2dd
Audi S4 Avant across the UK by price
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