2021 Mercedes-Benz GLA 2.0 GLA220d AMG Line

Price: £20,880. Fair price: £218 (1%) under the AskCar estimate of £21,098, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,487 priced Mercedes-Benz GLA adverts on AskCar as of 7 November 2026.

AskCar lists 2,559 used Mercedes-Benz GLA from 1,304 UK dealerships, as of 7 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: 46,000 miles
  • Fuel: Diesel
  • Body: SUV, 5 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic (DCT)
  • Drive: Four-wheel drive
  • Colour: White
  • CO2: 148 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 46,000 miles on the clock, this 2021 Mercedes-Benz GLA AMG Line has done roughly 6,000 more miles than a typical 2021 Mercedes-Benz GLA. Its asking price of £20,880 is £218 below the AskCar estimate of £21,098. The AskCar estimate draws on 2,487 Mercedes-Benz GLA adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 163 days ago. Its asking price has since fallen by £940. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Wembley Prestige Cars in Bushey. 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: £218 (1%) under the AskCar estimate of £21,098.

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 2,487 priced Mercedes-Benz GLA adverts across different ages and specifications, as of 7 November 2026.

A 2021 Mercedes-Benz GLA with the 2.0 diesel engine is typically advertised at £20,300: the median of the 103 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 Mercedes-Benz GLA has been on sale for at least 163 days.

Price history

AskCar first saw this advert on 28 May 2026 at £21,820. Its asking price is now £20,880, £940 less. The latest price cut was seen on 23 July 2026.

Price changes recorded:

  • 28 May 2026: £21,820
  • 1 June 2026: £21,640
  • 23 July 2026: £20,880

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 13 March 2027.

It has had 3 MOTs. The latest, on 11 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 45,839 miles, which matches the advertised 46,000 miles.

Advertised mileage is about 6,000 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 £24,495, as of 7 November 2026.

The 3 closest to this car in mileage:

  • 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel SUV, blue. Mileage: 43,163 miles. Price: £20,574, £306 less than this car. Dealer: cinch in Oldham. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-65179ee62716
  • 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel SUV, grey. Mileage: 40,459 miles. Price: £20,789, £91 less than this car. Dealer: Lookers Mercedes-Benz of Wolverhampton in Wolverhampton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-d18ea03c3206
  • 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel SUV, black. Mileage: 52,967 miles. Price: £19,995, £885 less than this car. Dealer: Ideal Car Centre in Bilston. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-2211ab7cc2bb
  • The nearest: 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel SUV, black, 2 miles from this car. Mileage: 63,359 miles. Price: £18,450, £2,430 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-53405a150b0b

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

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Photos

28 photos of this car are on its AskCar page.

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.