Used Mercedes-Benz CLS coupe for sale under £20,000

There are 27 used Mercedes-Benz CLS coupe under £20,000 for sale from UK dealers on AskCar, as of 29 October 2026. Typical asking price £14,000 (the median: half cost less, half cost more). The cheapest is £2,450. AskCar lists 339 used Mercedes-Benz CLS across the UK, from 279 dealerships.

The middle half of the 27 cars are priced between £11,700 and £16,700.

As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

8 of the 27 cars had their price reduced in the last 14 days to 29 October 2026.

Cars for sale now

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 313 priced Mercedes-Benz CLS adverts on AskCar as of 29 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 CLS by gearbox, fuel and body

Mercedes-Benz CLS prices by year

Mercedes-Benz CLS by price

Coupe cars under £20,000

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