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: 26,056 miles
• Fuel: Diesel
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 242 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: White
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz C Class AMG Line is advertised with 26,056 miles, approximately 22,000 below the typical mileage for its age. Priced at £21,500, it is advertised £514 above the AskCar estimate of £20,986. The AskCar estimate draws on 4,622 Mercedes-Benz C Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 122 days ago. Its asking price has since fallen by £500. The recorded MOT expired on 26 October 2026, so ask the dealer whether it has been renewed. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at MB Brent Park in London. 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: £514 (2%) over the AskCar estimate of £20,986.

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

This 2020 Mercedes-Benz C Class has been on sale for at least 122 days.

Price history

AskCar first saw this advert on 8 July 2026 at £22,000. Its asking price is now £21,500, £500 less. The latest price cut was seen on 14 October 2026.

Price changes recorded:

• 8 July 2026: £22,000
• 14 October 2026: £21,500

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 26 October 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 30 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 23,172 miles, which matches the advertised 26,056 miles.

Advertised mileage is about 22,000 miles lower 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 £20,060, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz C Class AMG Line, 2.0 diesel coupe, blue. Mileage: 30,672 miles. Price: £20,060, £1,440 less than this car. Dealer: Big Motoring World Leeds in Leeds. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-85d3df6b3828
• 2020 Mercedes-Benz C Class AMG Line, 2.0 diesel coupe, white. Mileage: 30,737 miles. Price: £17,997, £3,503 less than this car. Dealer: Endeavour Omoda & Jaecoo Watford in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-1f0a10889711
• 2020 Mercedes-Benz C Class AMG Line, 2.0 diesel coupe, black. Mileage: 42,500 miles. Price: £18,995, £2,505 less than this car. Dealer: Derwent Motors in Derby. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-bb3b0aead752