2021 Mercedes-Benz GLC 2.0 GLC220d AMG Line

Price: £24,995. Fair price: £1,744 (6%) under the AskCar estimate of £26,739, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,814 priced Mercedes-Benz GLC adverts on AskCar as of 8 November 2026.

AskCar lists 2,918 used Mercedes-Benz GLC from 1,187 UK dealerships, as of 8 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: GLC
  • Trim: AMG Line
  • Version: 2.0 AMG Line Auto 4WD Euro 6 5dr (191 bhp)
  • Year: 2021
  • Mileage: 26,500 miles
  • Fuel: Diesel
  • Body: Estate, 5 doors, 5 seats
  • Engine: 2.0 litres, 191 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Silver
  • CO2: 166 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLC AMG Line has covered 26,500 miles, around 21,700 fewer miles than is typical for its age. The dealer is asking £24,995, which is £1,744 below the AskCar estimate of £26,739. To work out the AskCar estimate, we analyse UK dealer adverts for 2,814 Mercedes-Benz GLC cars across different ages and specifications. Since we first spotted the advert 59 days ago, the asking price has dropped by £2,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Slough Van & Truck Centre, based in Slough. 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: £1,744 (6%) under the AskCar estimate of £26,739.

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 2021 Mercedes-Benz GLC with the 2.0 diesel engine is typically advertised at £24,800: the median of the 126 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 Mercedes-Benz GLC has been on sale for at least 59 days.

Price history

AskCar first saw this advert on 10 September 2026 at £26,995. Its asking price is now £24,995, £2,000 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

  • 10 September 2026: £26,995
  • 15 September 2026: £26,495
  • 29 September 2026: £25,995
  • 3 October 2026: £25,450
  • 8 October 2026: £24,995
  • 27 October 2026: £24,495
  • 4 November 2026: £24,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 4 June 2027.

It has had 3 MOTs. The latest, on 27 May 2026, passed.

Advisories at the latest test: nearside rear tyre slightly damaged/cracking or perishing cracking in tread; nearside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 26,030 miles, which matches the advertised 26,500 miles.

Advertised mileage is about 21,700 miles lower than the median mileage of a 2021 Mercedes-Benz GLC on AskCar.

Similar cars

1 other 2021 Mercedes-Benz GLC AMG Line 2.0 diesel automatic estate is for sale at UK dealers, as of 8 November 2026.

The closest to this car in mileage:

  • 2021 Mercedes-Benz GLC AMG Line, 2.0 diesel estate, blue. Mileage: 43,543 miles. Price: £23,493, £1,502 less than this car. Dealer: LSH Auto Mercedes-Benz of Stockport in Stockport. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-3e5d1443cfe6

Browse all Mercedes-Benz GLC cars for sale · 2021 Mercedes-Benz GLC price guide

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Photos

49 photos of this car are on its AskCar page.

As of 8 November 2026, AskCar lists 595,629 cars and vans from 12,891 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.