2020 Mercedes-Benz GLA prices

There are 153 used 2020 Mercedes-Benz GLA cars for sale from UK dealers on AskCar, as of 9 November 2026. Typical asking price £17,600 (the median: half cost less, half cost more). The cheapest is £9,895. The middle half are priced between £15,000 and £20,000. Median mileage: about 44,000 miles.

Dealers lowered the asking price on more than a third of 2020 Mercedes-Benz GLA cars: 57 of the 153 in the 14 days to 9 November 2026.

2020 Mercedes-Benz GLA prices by engine and mileage

A 2020 Mercedes-Benz GLA 1.3 petrol car typically costs £19,600, against £15,000 for the 1.6 petrol, as of 9 November 2026.

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
1.3 petrol£19,600Too few for sale£20,000Too few for saleToo few for sale
1.6 petrol£15,000Too few for sale£15,900Too few for sale£12,400
2.0 diesel£19,800Too few for saleToo few for saleToo few for saleToo few for sale

Only 1 of the 2020 Mercedes-Benz GLA cars for sale have the 1.9 diesel engine, too few to give a typical asking price.

2020 Mercedes-Benz GLA prices by trim

TrimTypical asking price, 2020 cars
AMG Line Edition£15,000
AMG Line ExecutiveToo few for sale
AMG Line PremiumToo few for sale
SportToo few for sale
AMG LineToo few for sale
Urban EditionToo few for sale
AMG Line Premium PlusToo few for sale
Sport ExecutiveToo few for sale
Exclusive EditionToo few for sale

Only 19 of the 2020 Mercedes-Benz GLA cars for sale are AMG Line Executive, too few to give a typical asking price.

Only 18 of the 2020 Mercedes-Benz GLA cars for sale are AMG Line Premium, too few to give a typical asking price.

Only 15 of the 2020 Mercedes-Benz GLA cars for sale are Sport, too few to give a typical asking price.

Only 14 of the 2020 Mercedes-Benz GLA cars for sale are AMG Line, too few to give a typical asking price.

Only 12 of the 2020 Mercedes-Benz GLA cars for sale are Urban Edition, too few to give a typical asking price.

Only 11 of the 2020 Mercedes-Benz GLA cars for sale are AMG Line Premium Plus, too few to give a typical asking price.

Only 9 of the 2020 Mercedes-Benz GLA cars for sale are Sport Executive, too few to give a typical asking price.

Only 3 of the 2020 Mercedes-Benz GLA cars for sale are Exclusive Edition, too few to give a typical asking price.

Typical asking prices are of 2020 Mercedes-Benz GLA cars for sale on 9 November 2026, and are given only where at least 20 cars with a price are for sale.

2020 Mercedes-Benz GLA against other years

A 2019 Mercedes-Benz GLA car has a typical asking price of £13,000 and a 2021 one £20,500, as of 9 November 2026.

AskCar lists 2,470 used Mercedes-Benz GLA across the UK, from 1,292 dealerships.

As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2020 Mercedes-Benz GLA cars for sale now, page 1 of 4

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. 144 of the 146 cars listed here meet these rules. Pages 2 to 4 list every other 2020 Mercedes-Benz GLA car, cheapest first, including the 2 the groups do not pick from.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 2,429 priced Mercedes-Benz GLA adverts on AskCar as of 9 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2020 Mercedes-Benz GLA.

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. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 7 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value 2020 Mercedes-Benz GLA: priced furthest below the AskCar estimate

These 10 are priced 6% to 11% under their AskCar estimate. Their asking prices run from £11,995 to £16,250.

Cheapest 2020 Mercedes-Benz GLA: the lowest asking prices

These 10 are priced £9,895 to £12,000. They have covered 53,436 to 132,000 miles.

Lowest-mileage 2020 Mercedes-Benz GLA

These 10 have covered 10,231 to 24,764 miles. Their asking prices run from £15,249 to £23,998.

Recently reduced 2020 Mercedes-Benz GLA: the biggest price reductions in the 14 days to 9 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 9 November 2026. Their reductions since AskCar first saw them run from £1,300 to £3,000.

Newly advertised 2020 Mercedes-Benz GLA: first seen by AskCar in the 7 days to 9 November 2026

These 10 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

Mercedes-Benz GLA by gearbox, fuel and body

Mercedes-Benz GLA prices by year

Mercedes-Benz GLA by trim

2020 Mercedes-Benz GLA by price

2020 Mercedes-Benz GLA by trim

Mercedes-Benz GLA by price

Mercedes-Benz GLA near you

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