2021 Mercedes-Benz CLS 2.9 CLS400d AMG Line Night Edition Premium Plus

Price: £34,995. Above the going rate: £5,163 (17%) over the AskCar estimate of £29,832, our expected asking price for this car from its model, age, mileage and specification, drawing on 310 priced Mercedes-Benz CLS adverts on AskCar as of 8 November 2026.

AskCar lists 330 used Mercedes-Benz CLS from 270 UK dealerships, as of 8 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: CLS
  • Trim: AMG Line Night Edition Premium Plus
  • Version: 2.9 CLS400d AMG Line Night Edition Premium Plus G-Tronic 4WD Euro 6 (s/s) 4dr Coupe (325 bhp)
  • Year: 2021
  • Mileage: 49,270 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.9 litres, 325 bhp
  • Gearbox: Automatic (G-Tronic)
  • Drive: Four-wheel drive
  • Colour: Black
  • CO2: 191 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz CLS AMG Line Night Edition Premium Plus has covered 49,270 miles, around 2,100 more miles than is typical for its age. The AskCar estimate for this car is £29,832. It is priced at £34,995, which is £5,163 above that estimate. The AskCar estimate uses 310 UK dealer adverts for the Mercedes-Benz CLS, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 89 days ago. Its advertised mileage matches the government's MOT record. The seller is Elysium Motors, based in Colchester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £5,163 (17%) over the AskCar estimate of £29,832.

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 310 priced Mercedes-Benz CLS adverts across different ages and specifications, as of 8 November 2026.

A 2021 Mercedes-Benz CLS with the 2.9 diesel engine is typically advertised at £30,200: the median of the 12 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 Mercedes-Benz CLS has been on sale for at least 89 days.

Price history

AskCar first saw this advert on 11 August 2026 at £34,995. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 28 April 2027.

It has had 3 MOTs. The latest, on 29 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 49,208 miles, which matches the advertised 49,270 miles.

Advertised mileage is about 2,100 miles higher than the median mileage of a 2021 Mercedes-Benz CLS on AskCar.

Similar cars

9 other 2021 Mercedes-Benz CLS AMG Line Night Edition Premium Plus 2.9 diesel automatic saloons are for sale at UK dealers, from £25,995 to £32,495, as of 8 November 2026.

The 3 closest to this car in mileage:

  • The nearest: 2021 Mercedes-Benz CLS AMG Line Night Edition Premium Plus, 2.9 diesel saloon, grey, 57 miles from this car. Mileage: 60,000 miles. Price: £26,495, £8,500 less than this car. Dealer: Carderi Motors in Wembley. AskCar page: https://askcar.co.uk/car/mercedes-benz-cls-2021-6746c3603706

Browse all Mercedes-Benz CLS cars for sale · 2021 Mercedes-Benz CLS price guide

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Photos

60 photos of this car are on its AskCar page.

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.