2020 Mercedes-Benz C Class 2.0 C300d AMG Line Edition Premium

Overview

• Make: Mercedes-Benz
• Model: C Class
• Trim: AMG Line Edition Premium
• Version: 2.0 C300d AMG Line Edition Premium G-Tronic+ RWD Euro 6 (s/s) 4dr (242 bhp)
• Year: 2020
• Mileage: 40,327 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 242 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz C Class AMG Line Edition Premium has covered 40,327 miles, around 7,700 fewer miles than is typical for its age. Its asking price of £19,490 is £119 above the AskCar estimate of £19,371. The AskCar estimate uses UK dealer asking prices, including 4,562 Mercedes-Benz C Class adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 36 days ago. Its asking price has since fallen by £500. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Sinclair Group in Bridgend. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £119 (under 1%) over the AskCar estimate of £19,371.

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 4,562 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 8 November 2026.

A 2020 Mercedes-Benz C Class with the 2.0 diesel engine is typically advertised at £17,500: the median of the 127 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2020 Mercedes-Benz C Class has been on sale for at least 36 days.

Price history

AskCar first saw this advert on 3 October 2026 at £19,990. Its asking price is now £19,490, £500 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 3 October 2026: £19,990
• 13 October 2026: £19,890
• 21 October 2026: £19,880
• 27 October 2026: £19,790
• 4 November 2026: £19,690
• 5 November 2026: £19,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 14 January 2027.

It failed its MOT on 13 January 2026 (nearside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords outer edge) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 36,468 miles, which matches the advertised 40,327 miles.

Advertised mileage is about 7,700 miles lower than the median mileage of a 2020 Mercedes-Benz C Class on AskCar.

Similar cars

14 other 2020 Mercedes-Benz C Class AMG Line Edition Premium 2.0 diesel automatic saloons are for sale at UK dealers, from £13,262 to £20,990, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz C Class AMG Line Edition Premium, 2.0 diesel saloon, grey. Mileage: 42,000 miles. Price: £20,950, £1,460 more than this car. Dealer: Sytner Group Mercedes-Benz of Carlisle in Carlisle. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-bb7ff7637a12
• 2020 Mercedes-Benz C Class AMG Line Edition Premium, 2.0 diesel saloon, blue. Mileage: 34,149 miles. Price: £20,400, £910 more than this car. Dealer: Sytner Select Northampton in Northampton. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-274af62e114f
• 2020 Mercedes-Benz C Class AMG Line Edition Premium, 2.0 diesel saloon, blue. Mileage: 51,000 miles. Price: £17,499, £1,991 less than this car. Dealer: Noya Motor Group in Peterborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-d904a8c16db1

• The nearest: 2020 Mercedes-Benz C Class AMG Line Edition Premium, 2.0 diesel saloon, blue, 105 miles from this car. Mileage: 66,639 miles. Price: £15,943, £3,547 less than this car. Dealer: Carsa Cannock in Cannock. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-9f2559211fa2