2021 Mercedes-Benz GLC 2.0 AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: GLC
• Trim: AMG Line Premium
• Version: 2.0 AMG Line Premium Auto 4WD Euro 6 5dr
• Year: 2021
• Mileage: 87,612 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 159 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLC AMG Line Premium is advertised with 87,612 miles, approximately 39,400 above the typical mileage for its age. The dealer is asking £19,197, which is £1,173 below the AskCar estimate of £20,370. To work out the AskCar estimate, we analyse UK dealer adverts for 2,850 Mercedes-Benz GLC cars across different ages and specifications. We first recorded this advert 23 days ago, and its asking price has since fallen by £798. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone Mercedes-Benz of Colchester, based in Colchester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,173 (5%) under the AskCar estimate of £20,370.

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 2,850 priced Mercedes-Benz GLC adverts across different ages and specifications, as of 7 November 2026.

A 2021 Mercedes-Benz GLC with the 2.0 diesel engine is typically advertised at £24,800: the median of the 127 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 Mercedes-Benz GLC has been on sale for at least 23 days.

Price history

AskCar first saw this advert on 15 October 2026 at £19,995. Its asking price is now £19,197, £798 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 15 October 2026: £19,995
• 24 October 2026: £19,892
• 5 November 2026: £19,197

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 29 April 2027.

It has had 4 MOTs. The latest, on 31 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 80,033 miles, which matches the advertised 87,612 miles.

Advertised mileage is about 39,400 miles higher than the median mileage of a 2021 Mercedes-Benz GLC on AskCar.

Similar cars

32 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 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, black. Mileage: 89,624 miles. Price: £18,991, £206 less than this car. Dealer: West Riding Hyundai Bolton in Bolton. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-43c5f741fe5d
• 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, red. Mileage: 77,400 miles. Price: £18,990, £207 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-5b51b8f567ec
• 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 75,325 miles. Price: £22,991, £3,794 more than this car. Dealer: Greenaway Autos in Pontypridd. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-0c69ab229a64

• The nearest: 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, white, 16 miles from this car. Mileage: 35,300 miles. Price: £28,995, £9,798 more than this car. Dealer: Stratstone Mercedes-Benz of Chelmsford in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-5c628e427f9b