2021 Mercedes-Benz GLC 2.0 GLC220d AMG Line

Price: £20,990. Fair price: £1,429 (6%) under the AskCar estimate of £22,419, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,850 priced Mercedes-Benz GLC adverts on AskCar as of 7 November 2026.

AskCar lists 2,954 used Mercedes-Benz GLC from 1,193 UK dealerships, as of 7 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: 57,593 miles
  • Fuel: Diesel
  • Body: SUV, 5 doors, 5 seats
  • Engine: 2.0 litres, 191 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Grey
  • CO2: 166 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLC AMG Line has covered 57,593 miles, around 9,400 more miles than is typical for its age. The AskCar estimate for this car is £22,419. It is priced at £20,990, which is £1,429 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 2,850 Mercedes-Benz GLC cars across different ages and specifications. It first appeared in our advert records 9 days ago. Its advertised mileage matches the government's MOT record. You can find this car at Endeavour Automotive in Letchworth. 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: £1,429 (6%) under the AskCar estimate of £22,419.

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 9 days.

Price history

AskCar first saw this advert on 29 October 2026 at £20,990. 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 7 November 2026: valid until 28 March 2027.

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

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge; offside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 48,557 miles, which matches the advertised 57,593 miles.

Advertised mileage is about 9,400 miles higher than the median mileage of a 2021 Mercedes-Benz GLC on AskCar.

Similar cars

12 other 2021 Mercedes-Benz GLC AMG Line 2.0 diesel automatic SUVs are for sale at UK dealers, from £18,490 to £27,495, as of 7 November 2026.

The 3 closest to this car in mileage:

  • 2021 Mercedes-Benz GLC AMG Line, 2.0 diesel SUV, grey. Mileage: 66,750 miles. Price: £20,950, the same price as this car. Dealer: JCT600 Volkswagen York in York. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-44aa0810a07a
  • 2021 Mercedes-Benz GLC AMG Line, 2.0 diesel SUV, white. Mileage: 48,136 miles. Price: £23,750, £2,760 more than this car. Dealer: Cotswold Group Select in Tewkesbury. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-38eda01c507b
  • 2021 Mercedes-Benz GLC AMG Line, 2.0 diesel SUV, silver. Mileage: 67,284 miles. Price: £20,000, £990 less than this car. Dealer: Ringley Car Sales in Radcliffe. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-38e2cd5e9fa7

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

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As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.