2020 Mercedes-Benz CLS 2.9 CLS400d AMG Line

Price: £23,950. Good value: £2,454 (9%) under the AskCar estimate of £26,404, our expected asking price for this car from its model, age, mileage and specification, drawing on 305 priced Mercedes-Benz CLS adverts on AskCar as of 9 November 2026.

AskCar lists 322 used Mercedes-Benz CLS from 263 UK dealerships, as of 9 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: CLS
  • Trim: AMG Line
  • Version: 2.9 CLS400d AMG Line G-Tronic 4WD Euro 6 (s/s) 4dr Coupe (335 bhp)
  • Year: 2020
  • Mileage: 51,950 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.9 litres, 335 bhp
  • Gearbox: Automatic (G-Tronic)
  • Drive: Four-wheel drive
  • Colour: Red
  • CO2: 156 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz CLS AMG Line is advertised with 51,950 miles on the clock. The dealer is asking £23,950, which is £2,454 below the AskCar estimate of £26,404. To work out the AskCar estimate, we analyse UK dealer adverts for 305 Mercedes-Benz CLS cars across different ages and specifications. Since we first spotted the advert 45 days ago, the asking price has dropped by £1,000. Its advertised mileage matches the government's MOT record. It is for sale at J.A. Jarvis in Fernhurst. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Good value: £2,454 (9%) under the AskCar estimate of £26,404.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 305 priced Mercedes-Benz CLS adverts across different ages and specifications, as of 9 November 2026.

Time on sale

This 2020 Mercedes-Benz CLS has been on sale for at least 45 days.

Price history

AskCar first saw this advert on 25 September 2026 at £24,950. Its asking price is now £23,950, £1,000 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

  • 25 September 2026: £24,950
  • 24 October 2026: £24,750
  • 31 October 2026: £23,950

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 16 October 2027.

It has had 10 MOTs. The latest, on 22 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 51,968 miles, which matches the advertised 51,950 miles.

Browse all Mercedes-Benz CLS cars for sale · 2020 Mercedes-Benz CLS price guide

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Photos

60 photos of this car are on its AskCar page.

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.