2021 Mercedes-Benz CLA prices

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

There are 255 used 2021 Mercedes-Benz CLA cars for sale from UK dealers on AskCar, as of 10 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: 120 of the 255 in the 14 days to 10 November 2026.

2021 Mercedes-Benz CLA prices by engine and mileage

A 2021 Mercedes-Benz CLA 2.0 petrol car typically costs £21,500, against £18,900 for the 1.3 petrol, as of 10 November 2026.

A 2021 Mercedes-Benz CLA 1.3 petrol car with 20,000 to 40,000 miles typically costs £20,500, against £16,300 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£18,900Too few for sale£20,500£18,300£16,300
2.0 petrol£21,500Too few for sale£25,000£21,000£18,000

Only 10 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£18,000
AMG Line£18,300
AMGToo few for sale
AMG Premium PlusToo few for sale
Premium PlusToo few for sale
AMG S PlusToo few for sale

Only 15 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 10 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 10 November 2026.

AskCar lists 3,158 used Mercedes-Benz CLA across the UK, from 1,323 dealerships.

As of 10 November 2026, AskCar lists 591,054 cars and vans from 12,888 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 5

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. 242 of the 246 cars listed here meet these rules. Pages 2 to 5 list every other 2021 Mercedes-Benz CLA car, cheapest first, including the 4 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 3,121 priced Mercedes-Benz CLA adverts on AskCar as of 10 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 8% to 23% under their AskCar estimate. Their asking prices run from £7,995 to £25,249.

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 17,112 miles. Their asking prices run from £21,190 to £23,810.

Recently reduced 2021 Mercedes-Benz CLA: the biggest price reductions in the 14 days to 10 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 10 November 2026. Their reductions since AskCar first saw them run from £2,350 to £4,060.

Newly advertised 2021 Mercedes-Benz CLA: first seen by AskCar in the 7 days to 10 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

Mercedes-Benz CLA near you

More Mercedes-Benz

Everything