2021 Mercedes-Benz GLA 2.0 AMG Line Executive

Price: £18,998. Fair price: £899 (4%) over the AskCar estimate of £18,099, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,461 priced Mercedes-Benz GLA adverts on AskCar as of 8 November 2026.

AskCar lists 2,535 used Mercedes-Benz GLA from 1,304 UK dealerships, as of 8 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: GLA
  • Trim: AMG Line Executive
  • Version: 2.0 AMG Line Executive DCT Euro 6 5dr 8G
  • Year: 2021
  • Mileage: 67,443 miles
  • Fuel: Diesel
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 2.0 litres
  • Gearbox: Automatic (DCT)
  • Colour: Black
  • CO2: 142 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLA AMG Line Executive has covered 67,443 miles, around 27,400 more miles than is typical for its age. The AskCar estimate for this car is £18,099. It is priced at £18,998, which is £899 above that estimate. The AskCar estimate draws on 2,461 Mercedes-Benz GLA adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 16 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Mercedes-Benz & smart of Aberdeen, based in Aberdeen. 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: £899 (4%) over the AskCar estimate of £18,099.

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 2,461 priced Mercedes-Benz GLA adverts across different ages and specifications, as of 8 November 2026.

A 2021 Mercedes-Benz GLA with the 2.0 diesel engine is typically advertised at £20,500: the median of the 100 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 Mercedes-Benz GLA has been on sale for at least 16 days.

Price history

AskCar first saw this advert on 23 October 2026 at £18,998. 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 8 November 2026: valid until 21 October 2027.

It failed its MOT on 15 October 2026 (offside front anti-roll bar linkage ball joint excessively worn; nearside rear suspension arm pin or bush excessively worn trailing arm bush split) and passed 7 days later, on 22 October 2026.

Advisories at the latest test: nearside front brake disc worn, but not excessively; offside front brake disc worn, but not excessively; offside rear suspension arm pin or bush worn but not resulting in excessive movement trailing arm bush starting to split.

Mileage at that test: 67,456 miles, which matches the advertised 67,443 miles.

Advertised mileage is about 27,400 miles higher than the median mileage of a 2021 Mercedes-Benz GLA on AskCar.

Similar cars

5 other 2021 Mercedes-Benz GLA AMG Line Executive 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £18,998 to £20,998, as of 8 November 2026.

The 3 closest to this car in mileage:

  • 2021 Mercedes-Benz GLA AMG Line Executive, 2.0 diesel hatchback, black. Mileage: 62,643 miles. Price: £18,998, the same price as this car. Dealer: Arnold Clark Edinburgh Seafield MG / OMODA / JAECOO in Edinburgh. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-b94662cd6a16
  • 2021 Mercedes-Benz GLA AMG Line Executive, 2.0 diesel hatchback, red. Mileage: 56,460 miles. Price: £20,898, £1,900 more than this car. Dealer: Arnold Clark Kirkcaldy BMW in Kirkcaldy. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-316a0a3c1ab2
  • 2021 Mercedes-Benz GLA AMG Line Executive, 2.0 diesel hatchback, white. Mileage: 51,028 miles. Price: £19,199, £201 more than this car. Dealer: Stratstone Mercedes-Benz Of Hamilton in Hamilton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-2e7fe6045d30

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

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Photos

19 photos of this car are on its AskCar page.

As of 8 November 2026, AskCar lists 595,762 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.