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: 42,000 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 242 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Grey
• 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 42,000 miles, around 6,100 fewer miles than is typical for its age. Its asking price of £20,950 is £1,677 above the AskCar estimate of £19,273. To work out the AskCar estimate, we analyse UK dealer adverts for 4,645 Mercedes-Benz C Class cars across different ages and specifications. Since we first spotted the advert 32 days ago, the asking price has dropped by £545. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Group Mercedes-Benz of Carlisle, based in Carlisle. 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

Above the going rate: £1,677 (8%) over the AskCar estimate of £19,273.

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 32 days.

Price history

AskCar first saw this advert on 5 October 2026 at £21,495. Its asking price is now £20,950, £545 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 5 October 2026: £21,495
• 22 October 2026: £21,250
• 4 November 2026: £20,950

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 28 July 2027.

It has had 4 MOTs. The latest, on 28 July 2026, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge; offside front tyre worn close to legal limit/worn on edge; rear prop shaft flexible coupling slightly deteriorated.

Mileage at that test: 42,290 miles, which matches the advertised 42,000 miles.

Advertised mileage is about 6,100 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 £21,490, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz C Class AMG Line Edition Premium, 2.0 diesel saloon, blue. Mileage: 40,327 miles. Price: £19,490, £1,460 less than this car. Dealer: Sinclair Group in Bridgend. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-6b1192c13221
• 2020 Mercedes-Benz C Class AMG Line Edition Premium, 2.0 diesel saloon, blue. Mileage: 34,149 miles. Price: £20,400, £550 less 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: £17,599, £3,351 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, black, 62 miles from this car. Mileage: 17,000 miles. Price: £21,490, £540 more than this car. Dealer: Snippersgate in Houghton-le-Spring. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2020-da4aad57bf69