2020 Mercedes-Benz C Class 2.0 C300d AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: C Class
• Trim: AMG Line Premium
• Version: 2.0 AMG Line Premium Auto RWD Euro 6 2dr (241 bhp)
• Year: 2020
• Mileage: 32,575 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 241 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 170 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 32,575 miles, this 2020 Mercedes-Benz C Class AMG Line Premium has covered about 15,500 fewer miles than other 2020 Mercedes-Benz C Class cars. Its asking price of £21,499 is £300 below the AskCar estimate of £21,799. The AskCar estimate uses 4,622 UK dealer adverts for the Mercedes-Benz C Class, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. Our records show an MOT expiry date of 4 August 2026, which has passed. Ask the dealer for an update. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Kennedy Bros in Crowborough. 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

Fair price: £300 (1%) under the AskCar estimate of £21,799.

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.

A 2020 Mercedes-Benz C Class with the 2.0 diesel engine is typically advertised at £17,700: the median of the 130 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2020 Mercedes-Benz C Class advertised today. About half of 2020 Mercedes-Benz C Class cars are gone from sale within a month of being advertised: 170 of the 338 first advertised between 10 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £21,499. 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 7 November 2026: the latest record we hold ran out on 4 August 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 28 July 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 28,786 miles, which matches the advertised 32,575 miles.

Advertised mileage is about 15,500 miles lower than the median mileage of a 2020 Mercedes-Benz C Class on AskCar.

Similar cars

7 other 2020 Mercedes-Benz C Class AMG Line Premium 2.0 diesel automatic convertibles are for sale at UK dealers, from £15,682 to £23,700, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz C Class AMG Line Premium, 2.0 diesel convertible, grey. Mileage: 32,871 miles. Price: £21,695, £196 more than this car. Dealer: Group 1 Automotive Mercedes-Benz Of Derby in Derby. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-697910237868
• 2020 Mercedes-Benz C Class AMG Line Premium, 2.0 diesel convertible, blue. Mileage: 39,201 miles. Price: £18,950, £2,549 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-a62e1b55bba7
• 2020 Mercedes-Benz C Class AMG Line Premium, 2.0 diesel convertible, silver. Mileage: 20,002 miles. Price: £23,700, £2,201 more than this car. Dealer: Group 1 Automotive Mercedes-Benz of Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-94c5ed109c52

• The nearest: 2020 Mercedes-Benz C Class AMG Line Premium, 2.0 diesel convertible, silver, 33 miles from this car. Mileage: 46,558 miles. Price: £19,208, £2,291 less than this car. Dealer: Cargem in Rainham. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-32960d58656c