Used automatic Mercedes-Benz GLA for sale under £20,000

There are 1,212 used automatic Mercedes-Benz GLA under £20,000 for sale from UK dealers on AskCar, as of 30 October 2026. Typical asking price £12,500 (the median: half cost less, half cost more). The cheapest is £2,995. AskCar lists 2,568 used Mercedes-Benz GLA across the UK, from 1,319 dealerships.

The middle half of the 1,212 cars are priced between £10,500 and £15,000.

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.

367 of the 1,212 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
202191£19,000£18,000 to £19,700
2020117£16,500£14,800 to £18,400
2019246£13,500£12,500 to £14,700
2018208£12,500£11,100 to £14,000
2017185£11,800£10,300 to £12,900
2016143£10,300£9,000 to £12,000
2015134£9,900£8,300 to £11,200
201457£9,300£8,500 to £10,200

Cars for sale now, page 5 of 13

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 2,526 priced Mercedes-Benz GLA 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 GLA by gearbox, fuel and body

Automatic Mercedes-Benz GLA by price

Mercedes-Benz GLA prices by year

Mercedes-Benz GLA by price

Automatic cars and vans under £20,000

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