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

There are 727 used diesel Mercedes-Benz GLA under £20,000 for sale from UK dealers on AskCar, as of 30 October 2026. Typical asking price £10,500 (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 727 cars are priced between £9,000 and £12,500.

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.

224 of the 727 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
202150£19,000£18,100 to £19,600
2018149£12,000£10,500 to £13,300
2017200£11,000£9,600 to £12,200
2016138£9,500£8,500 to £11,000
2015120£9,000£8,000 to £10,000
201444£8,900£8,000 to £9,600

Cars for sale now, page 8 of 8

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.

Mercedes-Benz GLA by gearbox, fuel and body

Diesel Mercedes-Benz GLA by price

Mercedes-Benz GLA prices by year

Mercedes-Benz GLA by price

Diesel cars and vans under £20,000

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