2021 Mercedes-Benz CLA prices

This 2021 Mercedes-Benz CLA is no longer listed. Here are similar cars for sale now.

There are 263 used 2021 Mercedes-Benz CLA cars for sale from UK dealers on AskCar, as of 8 November 2026. Typical asking price £19,500 (the median: half cost less, half cost more). The cheapest is £7,995. The middle half are priced between £18,000 and £22,000. Median mileage: about 47,000 miles.

Dealers lowered the asking price on more than a third of 2021 Mercedes-Benz CLA cars: 112 of the 263 in the 14 days to 8 November 2026.

2021 Mercedes-Benz CLA prices by engine and mileage

A 2021 Mercedes-Benz CLA 2.0 petrol car typically costs £22,000, against £18,700 for the 1.3 petrol, as of 8 November 2026.

A 2021 Mercedes-Benz CLA 1.3 petrol car with 20,000 to 40,000 miles typically costs £20,500, against £16,200 with 60,000 miles or more.

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
1.3 petrol£18,700Too few for sale£20,500£18,400£16,200
2.0 petrol£22,000Too few for sale£25,500£21,500£18,100

Only 11 of the 2021 Mercedes-Benz CLA cars for sale have the 1.9 diesel engine, too few to give a typical asking price.

2021 Mercedes-Benz CLA prices by trim

TrimTypical asking price, 2021 cars
AMG Line Premium Plus£20,000
AMG Line Premium£18,300
AMG Line£18,100
AMGToo few for sale
AMG Premium PlusToo few for sale
Premium PlusToo few for sale
AMG S PlusToo few for sale

Only 16 of the 2021 Mercedes-Benz CLA cars for sale are AMG, too few to give a typical asking price.

Only 5 of the 2021 Mercedes-Benz CLA cars for sale are AMG Premium Plus, too few to give a typical asking price.

Only 3 of the 2021 Mercedes-Benz CLA cars for sale are Premium Plus, too few to give a typical asking price.

Only 2 of the 2021 Mercedes-Benz CLA cars for sale are AMG S Plus, too few to give a typical asking price.

Typical asking prices are of 2021 Mercedes-Benz CLA cars for sale on 8 November 2026, and are given only where at least 20 cars with a price are for sale.

2021 Mercedes-Benz CLA against other years

A 2020 Mercedes-Benz CLA car has a typical asking price of £18,000 and a 2022 one £20,500, as of 8 November 2026.

AskCar lists 3,224 used Mercedes-Benz CLA across the UK, from 1,330 dealerships.

As of 8 November 2026, AskCar lists 595,629 cars and vans from 12,891 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2021 Mercedes-Benz CLA cars for sale now, page 1 of 6

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. 245 of the 254 cars listed here meet these rules. Pages 2 to 6 list every other 2021 Mercedes-Benz CLA car, cheapest first, including the 9 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 3,143 priced Mercedes-Benz CLA adverts on AskCar as of 8 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2021 Mercedes-Benz CLA.

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 9 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value 2021 Mercedes-Benz CLA: priced furthest below the AskCar estimate

These 10 are priced 9% to 23% under their AskCar estimate. Their asking prices run from £7,995 to £25,980.

Cheapest 2021 Mercedes-Benz CLA: the lowest asking prices

These 10 are priced £7,995 to £14,750. They have covered 61,260 to 173,200 miles.

Lowest-mileage 2021 Mercedes-Benz CLA

These 10 have covered 5,160 to 17,812 miles. Their asking prices run from £21,190 to £23,900.

Recently reduced 2021 Mercedes-Benz CLA: the biggest price reductions in the 14 days to 8 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 8 November 2026. Their reductions since AskCar first saw them run from £2,296 to £3,700.

Newly advertised 2021 Mercedes-Benz CLA: first seen by AskCar in the 7 days to 8 November 2026

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

Mercedes-Benz CLA by gearbox, fuel and body

Mercedes-Benz CLA prices by year

Mercedes-Benz CLA by trim

2021 Mercedes-Benz CLA by price

2021 Mercedes-Benz CLA by trim

Mercedes-Benz CLA by price

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