Used petrol Mercedes-Benz A Class for sale under £20,000

There are 2,417 used petrol Mercedes-Benz A Class under £20,000 for sale from UK dealers on AskCar, as of 29 October 2026. Typical asking price £14,400 (the median: half cost less, half cost more). The cheapest is £990. AskCar lists 6,791 used Mercedes-Benz A Class across the UK, from 2,681 dealerships.

The middle half of the 2,417 cars are priced between £11,200 and £17,000.

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.

826 of the 2,417 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
2023160£19,000£17,500 to £19,800
2022219£18,500£17,200 to £19,100
2021210£16,800£15,200 to £18,100
2020343£15,200£14,000 to £16,500
2019520£14,100£12,700 to £16,000
2018300£12,700£11,000 to £14,500
2017134£10,200£9,000 to £12,000
2016120£10,000£8,900 to £12,100
201599£10,700£7,900 to £15,000
201473£8,200£6,800 to £11,000
201396£8,000£7,000 to £10,000

Cars for sale now, page 7 of 25

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 6,506 priced Mercedes-Benz A Class 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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Mercedes-Benz A Class by gearbox, fuel and body

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Mercedes-Benz A Class prices by year

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