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 C300d AMG Line Premium G-Tronic+ RWD Euro 6 (s/s) 2dr Cabriolet (242 bhp)
• Year: 2020
• Mileage: 62,488 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 242 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 138 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz C Class AMG Line Premium is advertised with 62,488 miles, approximately 14,500 above the typical mileage for its age. The dealer is asking £15,682, which is £1,704 below the AskCar estimate of £17,386. To work out the AskCar estimate, we analyse UK dealer adverts for 4,622 Mercedes-Benz C Class cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 80 days, and its asking price is down £3,682. Its advertised mileage matches the government's MOT record. The seller is Carbase Lympsham, based in Lympsham. 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: £1,704 (9%) under the AskCar estimate of £17,386.

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

The dealer may accept less. This 2020 Mercedes-Benz C Class has been on sale for at least 80 days, and its asking price has been cut by £3,682. 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 19 August 2026 at £19,364. Its asking price is now £15,682, £3,682 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 19 August 2026: £19,364
• 20 August 2026: £19,412
• 21 August 2026: £19,461
• 22 August 2026: £19,261
• 25 August 2026: £19,550
• 14 October 2026: £19,257
• 15 October 2026: £19,000
• 16 October 2026: £18,715
• 17 October 2026: £18,434
• 20 October 2026: £18,157
• 21 October 2026: £17,885
• 22 October 2026: £17,617
• 24 October 2026: £17,353
• 27 October 2026: £17,000
• 28 October 2026: £16,575
• 29 October 2026: £16,169
• 31 October 2026: £15,877
• 4 November 2026: £15,828
• 5 November 2026: £15,786
• 6 November 2026: £15,745
• 7 November 2026: £15,682

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 28 May 2027.

It has had 4 MOTs. The latest, on 26 May 2026, passed.

Advisories at the latest test: nearside front outer tyre worn close to legal limit/worn on edge edge wearing.

Mileage at that test: 60,122 miles, which matches the advertised 62,488 miles.

Advertised mileage is about 14,500 miles higher 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 £15,990 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, black. Mileage: 75,580 miles. Price: £17,093, £1,411 more than this car. Dealer: Aylesbury Trade Centre in Aston Clinton. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-5b71226052ad
• 2020 Mercedes-Benz C Class AMG Line Premium, 2.0 diesel convertible, silver. Mileage: 46,558 miles. Price: £19,208, £3,526 more than this car. Dealer: Cargem in Rainham. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-32960d58656c
• 2020 Mercedes-Benz C Class AMG Line Premium, 2.0 diesel convertible, black. Mileage: 85,000 miles. Price: £15,990, £308 more than this car. Dealer: Car City (Luton) in Luton. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-33695949505d