2021 Mercedes-Benz GLA 2.0 GLA220d AMG Line

Price: £18,200. Fair price: £1,537 (7%) under the AskCar estimate of £19,737, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,472 priced Mercedes-Benz GLA adverts on AskCar as of 12 November 2026.

AskCar lists 2,513 used Mercedes-Benz GLA from 1,308 UK dealerships, as of 12 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: GLA
  • Trim: AMG Line
  • Version: 2.0 GLA220d AMG Line DCT 4WD Euro 6 (s/s) 5dr 8G (187 bhp)
  • Year: 2021
  • Mileage: 56,768 miles
  • Fuel: Diesel
  • Body: SUV, 5 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic (DCT)
  • Drive: Four-wheel drive
  • Colour: Silver
  • CO2: 148 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLA AMG Line is advertised with 56,768 miles, approximately 16,600 above the typical mileage for its age. Priced at £18,200, it is advertised £1,537 below the AskCar estimate of £19,737. The AskCar estimate uses UK dealer asking prices, including 2,472 Mercedes-Benz GLA adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 126 days ago. Its asking price has since fallen by £1,799. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stoneacre Sheffield Honda, based in Sheffield. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Stoneacre Sheffield Honda is rated 4.5 out of 5 on Google.

Price

Fair price: £1,537 (7%) under the AskCar estimate of £19,737.

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 2,472 priced Mercedes-Benz GLA adverts across different ages and specifications, as of 12 November 2026.

A 2021 Mercedes-Benz GLA with the 2.0 diesel engine is typically advertised at £20,200: the median of the 101 for sale on AskCar, as of 12 November 2026.

Time on sale

This 2021 Mercedes-Benz GLA has been on sale for at least 126 days.

Price history

AskCar first saw this advert on 9 July 2026 at £19,999. Its asking price is now £18,200, £1,799 less. The latest price cut was seen on 9 October 2026.

Price changes recorded:

  • 10 July 2026: £19,999
  • 16 July 2026: £19,799
  • 5 August 2026: £18,903
  • 10 August 2026: £18,750
  • 15 September 2026: £18,500
  • 21 September 2026: £18,400
  • 9 October 2026: £18,200

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 12 November 2026: valid until 28 June 2027.

It has had 3 MOTs. The latest, on 29 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 56,725 miles, which matches the advertised 56,768 miles.

Advertised mileage is about 16,600 miles higher than the median mileage of a 2021 Mercedes-Benz GLA on AskCar.

Similar cars

9 other 2021 Mercedes-Benz GLA AMG Line 2.0 diesel automatic SUVs are for sale at UK dealers, from £17,790 to £23,995, as of 12 November 2026.

The 3 closest to this car in mileage:

  • 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel SUV, black. Mileage: 52,967 miles. Price: £19,995, £1,795 more than this car. Dealer: Ideal Car Centre in Bilston. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-2211ab7cc2bb
  • 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel SUV, black. Mileage: 63,359 miles. Price: £18,150, £50 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-53405a150b0b
  • 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel SUV, grey. Mileage: 66,064 miles. Price: £17,790, £410 less than this car. Dealer: Phantom Motor Company in Hindley Green. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-540c1de8fbc1
  • The nearest: 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel SUV, silver, 23 miles from this car. Mileage: 21,258 miles. Price: £23,995, £5,795 more than this car. Dealer: Geoff Cox Subaru in Denby. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-daa67d8c76a3

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

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Photos

32 photos of this car are on its AskCar page.

As of 12 November 2026, AskCar lists 596,362 cars and vans from 12,840 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.