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

There are 2,400 used petrol Mercedes-Benz A Class under £20,000 for sale from UK dealers on AskCar, as of 30 October 2026. Typical asking price £14,500 (the median: half cost less, half cost more). The cheapest is £990. AskCar lists 6,738 used Mercedes-Benz A Class across the UK, from 2,601 dealerships.

The middle half of the 2,400 cars are priced between £11,500 and £17,000.

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.

853 of the 2,400 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
2023163£19,200£17,600 to £19,800
2022222£18,500£17,200 to £19,200
2021208£16,900£15,400 to £18,200
2020350£15,200£14,000 to £16,500
2019520£14,000£12,700 to £15,900
2018299£12,800£11,100 to £14,500
2017134£10,200£9,000 to £12,000
2016120£10,000£9,000 to £12,100
201591£11,000£7,800 to £15,000
201469£8,300£7,000 to £11,400
201395£8,000£7,000 to £9,900

Cars for sale now, page 15 of 24

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 6,558 priced Mercedes-Benz A Class 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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Mercedes-Benz A Class by gearbox, fuel and body

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