Used petrol Audi A3 for sale under £20,000

There are 2,760 used petrol Audi A3 under £20,000 for sale from UK dealers on AskCar, as of 29 October 2026. Typical asking price £15,000 (the median: half cost less, half cost more). The cheapest is £795. AskCar lists 6,724 used Audi A3 across the UK, from 2,304 dealerships.

The middle half of the 2,760 cars are priced between £10,000 and £17,800.

As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

1,072 of the 2,760 cars had their price reduced in the last 14 days to 29 October 2026.

Median asking price by year

YearFor sale with a priceMedian asking priceMiddle half priced between
2024112£18,800£17,600 to £19,500
2023607£18,300£17,000 to £19,200
2022340£17,100£15,800 to £18,500
2021250£16,700£15,000 to £18,100
2020203£15,200£13,300 to £16,500
2019199£13,200£11,300 to £14,800
2018232£12,100£10,500 to £13,700
2017194£10,600£9,000 to £12,500
2016164£9,200£8,000 to £10,700
2015111£8,600£7,400 to £9,800
2014124£8,000£7,000 to £9,000
201389£7,000£5,800 to £8,500
201222£4,900£3,000 to £6,400

Cars for sale now, page 2 of 28

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 6,508 priced Audi A3 adverts on AskCar as of 29 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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