2021 Mercedes-Benz C Class 1.5 C200 MHEV AMG Line Edition

Price: £21,200. Fair price: £406 (1%) over the AskCar estimate of £20,794, our expected asking price for this car from its model, age, mileage and specification, drawing on 4,632 priced Mercedes-Benz C Class adverts on AskCar as of 12 November 2026.

AskCar lists 4,864 used Mercedes-Benz C Class from 2,343 UK dealerships, as of 12 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: C Class
  • Trim: AMG Line Edition
  • Version: 1.5 C200 Mhev AMG Line Edition G-Tronic+ RWD Euro 6 (s/s) 2dr Cabriolet (195 bhp)
  • Year: 2021
  • Mileage: 36,797 miles
  • Fuel: Petrol, mild hybrid
  • Body: Convertible, 2 doors, 4 seats
  • Engine: 1.5 litres, 195 bhp
  • Gearbox: Automatic (G-Tronic+)
  • Drive: Rear-wheel drive
  • Colour: Grey
  • CO2: 170 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz C Class AMG Line Edition has covered 36,797 miles, around 8,100 fewer miles than is typical for its age. Priced at £21,200, it is advertised £406 above the AskCar estimate of £20,794. The AskCar estimate uses UK dealer asking prices, including 4,632 Mercedes-Benz C Class adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert today. The government's MOT record matches its advertised mileage. You can find this car at Car Planet Watford in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Car Planet Watford is rated 4.6 out of 5 on Google.

Price

Fair price: £406 (1%) over the AskCar estimate of £20,794.

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 4,632 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 12 November 2026.

A 2021 Mercedes-Benz C Class with the 1.5 petrol engine is typically advertised at £18,600: the median of the 33 for sale on AskCar, as of 12 November 2026.

Time on sale

AskCar first saw this 2021 Mercedes-Benz C Class advertised today. About half of 2021 Mercedes-Benz C Class cars are gone from sale within a month of being advertised: 120 of the 230 first advertised between 13 July 2026 and 9 October 2026.

Price history

AskCar first saw this advert on 12 November 2026 at £21,200. 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 12 November 2026: valid until 1 April 2027.

It has had 4 MOTs. The latest, on 4 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 32,717 miles, which matches the advertised 36,797 miles.

Advertised mileage is about 8,100 miles lower than the median mileage of a 2021 Mercedes-Benz C Class on AskCar.

Similar cars

2 other 2021 Mercedes-Benz C Class AMG Line Edition 1.5 petrol automatic convertibles are for sale at UK dealers, from £19,480 to £20,875, as of 12 November 2026.

The 2 closest to this car in mileage:

  • 2021 Mercedes-Benz C Class AMG Line Edition, 1.5 petrol convertible, blue. Mileage: 42,296 miles. Price: £20,875, £325 less than this car. Dealer: HK Cars in Bolton. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2021-5e788f8caeb8
  • 2021 Mercedes-Benz C Class AMG Line Edition, 1.5 petrol convertible, black. Mileage: 51,950 miles. Price: £19,480, £1,720 less than this car. Dealer: Hippo Approved in Blackburn. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2021-6249f6ad0e19

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

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Photos

1 photo of this car is on its AskCar page.

As of 12 November 2026, AskCar lists 596,362 cars and vans from 12,840 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.