2021 Mercedes-Benz C Class 3.0 C43 Premium Plus

Price: £27,600. Good value: £2,451 (8%) under the AskCar estimate of £30,051, our expected asking price for this car from its model, age, mileage and specification, drawing on 4,645 priced Mercedes-Benz C Class adverts on AskCar as of 6 November 2026.

AskCar lists 4,899 used Mercedes-Benz C Class from 2,334 UK dealerships, as of 6 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: C Class
  • Trim: Premium Plus
  • Version: 3.0 C 43 Edition Premium Plus 9G-Tronic Plus 4WD Euro 6 5dr (384 bhp)
  • Year: 2021
  • Mileage: 50,100 miles
  • Fuel: Petrol
  • Body: Estate, 5 doors, 5 seats
  • Engine: 3.0 litres, 384 bhp
  • Gearbox: Automatic (9G-Tronic Plus)
  • Drive: Four-wheel drive
  • Colour: White
  • CO2: 230 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 50,100 miles, this 2021 Mercedes-Benz C Class Premium Plus has covered about 4,900 more miles than other 2021 Mercedes-Benz C Class cars. The AskCar estimate for this car is £30,051. It is priced at £27,600, which is £2,451 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 4,645 Mercedes-Benz C Class cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 63 days, and its asking price is down £1,300. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Marshall Honda Hull in Hessle. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Good value: £2,451 (8%) under the AskCar estimate of £30,051.

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 4,645 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 6 November 2026.

A 2021 Mercedes-Benz C Class with the 3.0 petrol engine is typically advertised at £31,900: the median of the 14 for sale on AskCar, as of 6 November 2026.

Time on sale

The dealer may accept less. This 2021 Mercedes-Benz C Class has been on sale for at least 63 days, and its asking price has been cut by £1,300. About half of 2021 Mercedes-Benz C Class cars are gone from sale within a month of being advertised: 117 of the 222 first advertised between 11 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 4 September 2026 at £28,900. Its asking price is now £27,600, £1,300 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

  • 4 September 2026: £28,900
  • 12 September 2026: £29,400
  • 17 September 2026: £29,100
  • 23 September 2026: £28,800
  • 25 September 2026: £28,700
  • 2 October 2026: £28,500
  • 9 October 2026: £28,000
  • 16 October 2026: £27,800
  • 6 November 2026: £27,600

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 7 April 2027.

It has had 3 MOTs. The latest, on 1 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 46,889 miles, which matches the advertised 50,100 miles.

Advertised mileage is about 4,900 miles higher than the median mileage of a 2021 Mercedes-Benz C Class on AskCar.

Similar cars

2 other 2021 Mercedes-Benz C Class Premium Plus 3.0 petrol automatic estates are for sale at UK dealers, from £23,595 to £30,695, as of 6 November 2026.

The 2 closest to this car in mileage:

  • 2021 Mercedes-Benz C Class Premium Plus, 3.0 petrol estate, white. Mileage: 48,250 miles. Price: £30,695, £3,095 more than this car. Dealer: High Spec Cars in Kings Langley. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2021-3067569032b0
  • 2021 Mercedes-Benz C Class Premium Plus, 3.0 petrol estate, white. Mileage: 75,911 miles. Price: £23,595, £4,005 less than this car. Dealer: DCC Fareham in Fareham. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2021-d7038a2a774a

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

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Photos

36 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.