Used automatic Audi A3 for sale under £20,000

There are 2,013 used automatic Audi A3 under £20,000 for sale from UK dealers on AskCar, as of 30 October 2026. Typical asking price £15,800 (the median: half cost less, half cost more). The cheapest is £1,995. AskCar lists 6,654 used Audi A3 across the UK, from 2,240 dealerships.

The middle half of the 2,013 cars are priced between £11,100 and £18,200.

As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

803 of the 2,013 cars had their price reduced in the last 14 days to 30 October 2026.

Median asking price by year

YearFor sale with a priceMedian asking priceMiddle half priced between
202463£18,900£18,000 to £19,700
2023457£18,500£17,500 to £19,400
2022278£17,500£16,000 to £18,900
2021235£17,000£15,000 to £18,300
2020120£16,100£14,400 to £17,100
2019137£14,200£12,900 to £15,300
2018129£13,000£11,500 to £14,800
2017131£11,000£9,700 to £13,500
2016111£9,800£8,900 to £11,500
2015113£9,000£8,000 to £10,800
2014109£8,400£7,800 to £9,600
201365£7,400£6,400 to £8,500

Cars for sale now, page 13 of 21

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 6,475 priced Audi A3 adverts on AskCar as of 30 October 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 and town; AskCar page.

Cheaper cars like each one, with its price history, are on its AskCar page.

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