2021 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: 2021
• Mileage: 42,796 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
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLC AMG Line Premium is advertised with 42,796 miles, approximately 5,400 below the typical mileage for its age. The dealer is asking £25,000, which is £1,598 below the AskCar estimate of £26,598. To work out the AskCar estimate, we analyse UK dealer adverts for 2,776 Mercedes-Benz GLC cars across different ages and specifications. It first appeared in our advert records 12 days ago. You can find this car at TG Performance in Bedford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,598 (6%) under the AskCar estimate of £26,598.

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 2,776 priced Mercedes-Benz GLC adverts across different ages and specifications, as of 9 November 2026.

A 2021 Mercedes-Benz GLC with the 2.0 diesel engine is typically advertised at £24,800: the median of the 122 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2021 Mercedes-Benz GLC has been on sale for at least 12 days.

Price history

AskCar first saw this advert on 28 October 2026 at £25,000. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 5,400 miles lower than the median mileage of a 2021 Mercedes-Benz GLC on AskCar.

Similar cars

30 other 2021 Mercedes-Benz GLC AMG Line Premium 2.0 diesel automatic SUVs are for sale at UK dealers, from £18,990 to £29,990, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 43,000 miles. Price: £29,990, £4,990 more than this car. Dealer: Hexagon Cars Of Harrogate in Harrogate. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-18de95bcc778
• 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, red. Mileage: 41,243 miles. Price: £26,549, £1,549 more than this car. Dealer: Motorpoint Glasgow in Glasgow. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-8d312a212c6d
• 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 40,310 miles. Price: £27,100, £2,100 more than this car. Dealer: Evans Halshaw BYD Shrewsbury in Shrewsbury. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-ea79870bac22

• The nearest: 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, grey, 21 miles from this car. Mileage: 62,000 miles. Price: £22,995, £2,005 less than this car. Dealer: Metro Cars London in Chesham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-d0ab31d81187