2020 Mercedes-Benz C Class 2.0 C300d AMG Line

Overview

• Make: Mercedes-Benz
• Model: C Class
• Trim: AMG Line
• Version: 2.0 C300d AMG Line G-Tronic+ RWD Euro 6 (s/s) 2dr (242 bhp)
• Year: 2020
• Mileage: 57,000 miles
• Fuel: Diesel
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 242 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 57,000 miles on the clock, this 2020 Mercedes-Benz C Class AMG Line has done roughly 8,900 more miles than a typical 2020 Mercedes-Benz C Class. The dealer is asking £16,849, which is £926 below the AskCar estimate of £17,775. To work out the AskCar estimate, we analyse UK dealer adverts for 4,645 Mercedes-Benz C Class cars across different ages and specifications. The asking price is now £1,146 lower than when we first recorded the advert 13 days ago. Our records show an MOT expiry date of 23 October 2026, which has passed. Ask the dealer for an update. Its advertised mileage matches the government's MOT record. It is for sale at Keith Price Garages in Abergavenny. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £926 (5%) under the AskCar estimate of £17,775.

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 4,645 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 6 November 2026.

A 2020 Mercedes-Benz C Class with the 2.0 diesel engine is typically advertised at £18,000: the median of the 133 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2020 Mercedes-Benz C Class has been on sale for at least 13 days.

Price history

AskCar first saw this advert on 24 October 2026 at £17,995. Its asking price is now £16,849, £1,146 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 24 October 2026: £17,995
• 31 October 2026: £17,495
• 5 November 2026: £16,849

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: the latest record we hold ran out on 23 October 2026; ask the dealer for the current MOT.

It has had 4 MOTs. The latest, on 24 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 52,288 miles, which matches the advertised 57,000 miles.

Advertised mileage is about 8,900 miles higher than the median mileage of a 2020 Mercedes-Benz C Class on AskCar.

Similar cars

8 other 2020 Mercedes-Benz C Class AMG Line 2.0 diesel automatic coupes are for sale at UK dealers, from £14,990 to £21,500, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz C Class AMG Line, 2.0 diesel coupe, silver. Mileage: 48,459 miles. Price: £18,990, £2,141 more than this car. Dealer: Spa Motors Mid Wales in Brecon. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-4c2268c793b2
• 2020 Mercedes-Benz C Class AMG Line, 2.0 diesel coupe, black. Mileage: 42,500 miles. Price: £18,995, £2,146 more than this car. Dealer: Derwent Motors in Derby. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-bb3b0aead752
• 2020 Mercedes-Benz C Class AMG Line, 2.0 diesel coupe, black. Mileage: 73,326 miles. Price: £15,795, £1,054 less than this car. Dealer: Hartington Motors in Wigan. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-a05f3d28eb29