2021 Mercedes-Benz C Class

Price: £18,495. Good value: £4,523 (19%) under the AskCar estimate of £23,018, our expected asking price for this car from its model, age, mileage and specification, drawing on 4,562 priced Mercedes-Benz C Class adverts on AskCar as of 8 November 2026.

AskCar lists 4,861 used Mercedes-Benz C Class from 2,336 UK dealerships, as of 8 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: C Class
  • Version: Auto Euro 6 2dr
  • Year: 2021
  • Mileage: 42,403 miles
  • Body: Coupe, 2 doors, 4 seats
  • Gearbox: Automatic
  • Colour: Silver
  • CO2: 161 g/km
  • Emissions standard: Euro 6

About this car

At 42,403 miles, this 2021 Mercedes-Benz C Class has covered about 3,000 fewer miles than other 2021 Mercedes-Benz C Class cars. Its asking price of £18,495 is £4,523 below the AskCar estimate of £23,018. To work out the AskCar estimate, we analyse UK dealer adverts for 4,562 Mercedes-Benz C Class cars across different ages and specifications. This car was first seen in our listings data 9 days ago. Its advertised mileage matches the government's MOT record. The seller is RRG Peugeot Rochdale, based in Rochdale. 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

Good value: £4,523 (19%) under the AskCar estimate of £23,018.

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 4,562 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 8 November 2026.

Time on sale

This 2021 Mercedes-Benz C Class has been on sale for at least 9 days.

Price history

AskCar first saw this advert on 30 October 2026 at £18,495. 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 15 July 2027.

It has had 3 MOTs. The latest, on 16 July 2026, passed.

Advisories at the latest test: front tyre worn close to legal limit/worn on edge; rear brake pad(s) wearing thin.

Mileage at that test: 40,125 miles, which matches the advertised 42,403 miles.

Advertised mileage is about 3,000 miles lower than the median mileage of a 2021 Mercedes-Benz C Class on AskCar.

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

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Photos

25 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.