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: 40,050 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 242 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 40,050 miles on the clock, this 2020 Mercedes-Benz GLC AMG Line Premium has done roughly 12,200 fewer miles than a typical 2020 Mercedes-Benz GLC. The AskCar estimate for this car is £24,709. It is priced at £23,600, which is £1,109 below that estimate. The AskCar estimate uses UK dealer asking prices, including 2,855 Mercedes-Benz GLC adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data today. The government's MOT record matches its advertised mileage. You can find this car at Car Planet Watford in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 11 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,109 (4%) under the AskCar estimate of £24,709.

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 2,855 priced Mercedes-Benz GLC adverts across different ages and specifications, as of 11 November 2026.

A 2020 Mercedes-Benz GLC with the 2.0 diesel engine is typically advertised at £22,000: the median of the 211 for sale on AskCar, as of 11 November 2026.

Time on sale

AskCar first saw this 2020 Mercedes-Benz GLC advertised today. About 4 in 10 of 2020 Mercedes-Benz GLC cars are gone from sale within a month of being advertised: 164 of the 382 first advertised between 11 July 2026 and 8 October 2026.

Price history

AskCar first saw this advert on 11 November 2026 at £23,600. 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 11 November 2026: valid until 12 June 2027.

It has had 4 MOTs. The latest, on 8 June 2026, passed.

Advisories at the latest test: offside front brake disc worn, but not excessively inner face; nearside front brake disc worn, but not excessively inner face.

Mileage at that test: 36,791 miles, which matches the advertised 40,050 miles.

Advertised mileage is about 12,200 miles lower 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 £17,830 to £28,433, as of 11 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 41,320 miles. Price: £23,990, £390 more than this car. Dealer: Sinclair Group in Bridgend. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-8920782d51fd
• 2020 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, black. Mileage: 41,600 miles. Price: £23,000, £600 less than this car. Dealer: Kallenhard in Leighton Buzzard. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-da8703b46f4f
• 2020 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, white. Mileage: 38,407 miles. Price: £24,247, £647 more than this car. Dealer: Hitchfields in Huddersfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-e9c214b59c0b

• The nearest: 2020 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, black, under a mile from this car. Mileage: 77,663 miles. Price: £19,150, £4,450 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2020-062f750298fb