2020 Mercedes-Benz GLC 2.0 GLC300d AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: GLC
• Trim: AMG Line Premium
• Version: 2.0 GLC300d AMG Line Premium G-Tronic+ 4WD Euro 6 (s/s) 5dr (242 bhp)
• Year: 2020
• Mileage: 77,663 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 242 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 77,663 miles on the clock, this 2020 Mercedes-Benz GLC AMG Line Premium has done roughly 24,200 more miles than a typical 2020 Mercedes-Benz GLC. Priced at £19,150, it is advertised £833 below the AskCar estimate of £19,983. To work out the AskCar estimate, we analyse UK dealer adverts for 2,814 Mercedes-Benz GLC cars across different ages and specifications. We have tracked this advert for 2 days. The government's MOT record matches its advertised mileage. It is advertised by Car Planet Watford in Rickmansworth. 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: £833 (4%) under the AskCar estimate of £19,983.

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 2,814 priced Mercedes-Benz GLC adverts across different ages and specifications, as of 8 November 2026.

A 2020 Mercedes-Benz GLC with the 2.0 diesel engine is typically advertised at £22,000: the median of the 209 for sale on AskCar, as of 8 November 2026.

Time on sale

AskCar first saw this 2020 Mercedes-Benz GLC advertised 2 days ago. About 4 in 10 of 2020 Mercedes-Benz GLC cars are gone from sale within a month of being advertised: 162 of the 371 first advertised between 11 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £19,150. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 20 January 2027.

It has had 4 MOTs. The latest, on 5 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 67,329 miles, which matches the advertised 77,663 miles.

Advertised mileage is about 24,200 miles higher than the median mileage of a 2020 Mercedes-Benz GLC on AskCar.

Similar cars

54 other 2020 Mercedes-Benz GLC AMG Line Premium 2.0 diesel automatic SUVs are for sale at UK dealers, from £16,990 to £28,433, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, silver. Mileage: 78,073 miles. Price: £20,995, £1,845 more than this car. Dealer: Agnew Group Mercedes-Benz Of Belfast in Belfast. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-2019182ad88c
• 2020 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, silver. Mileage: 76,885 miles. Price: £19,999, £849 more than this car. Dealer: Total Vehicle Solutions in Glasgow. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-3df379d9aa4f
• 2020 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 79,102 miles. Price: £19,998, £848 more than this car. Dealer: Arnold Clark Linwood Kia in Linwood. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-97bc14195143

• The nearest: 2020 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, black, 1 miles from this car. Mileage: 58,000 miles. Price: £24,995, £5,845 more than this car. Dealer: AH Specialist Cars in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-cc8c9d9a97a3