2021 Mercedes-Benz C Class 2.0 C300 AMG Line

Overview

• Make: Mercedes-Benz
• Model: C Class
• Trim: AMG Line
• Version: 2.0 AMG Line G-Tronic+ RWD Euro 6 2dr (254 bhp)
• Year: 2021
• Mileage: 71,171 miles
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 254 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Silver
• CO2: 161 g/km
• Emissions standard: Euro 6

About this car

With 71,171 miles on the clock, this 2021 Mercedes-Benz C Class AMG Line has done roughly 25,700 more miles than a typical 2021 Mercedes-Benz C Class. Its asking price of £15,400 is £2,694 below the AskCar estimate of £18,094. To work out the AskCar estimate, we analyse UK dealer adverts for 4,622 Mercedes-Benz C Class cars across different ages and specifications. We first recorded this advert 57 days ago, and its asking price has since fallen by £1,400. The government's MOT record matches its advertised mileage. It is advertised by Car Planet Watford in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Good value: £2,694 (14%) under the AskCar estimate of £18,094.

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 4,622 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 7 November 2026.

Time on sale

This 2021 Mercedes-Benz C Class has been on sale for at least 57 days.

Price history

AskCar first saw this advert on 11 September 2026 at £16,800. Its asking price is now £15,400, £1,400 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 11 September 2026: £16,800
• 24 September 2026: £16,500
• 30 September 2026: £16,400
• 7 October 2026: £16,250
• 12 October 2026: £16,100
• 19 October 2026: £15,800
• 26 October 2026: £15,650
• 1 November 2026: £15,450
• 7 November 2026: £15,400

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 25 February 2027.

It has had 4 MOTs. The latest, on 13 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 65,177 miles, which matches the advertised 71,171 miles.

Advertised mileage is about 25,700 miles higher than the median mileage of a 2021 Mercedes-Benz C Class on AskCar.