2021 Mercedes-Benz GLA 2.0 AMG Line

Overview

• Make: Mercedes-Benz
• Model: GLA
• Trim: AMG Line
• Version: 2.0 AMG Line DCT Euro 6 5dr 8G
• Year: 2021
• Mileage: 25,299 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic (DCT)
• Colour: Grey
• CO2: 149 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 25,299 miles, this 2021 Mercedes-Benz GLA AMG Line has covered about 14,700 fewer miles than other 2021 Mercedes-Benz GLA cars. The dealer is asking £21,498, which is £80 below the AskCar estimate of £21,578. To work out the AskCar estimate, we analyse UK dealer adverts for 2,487 Mercedes-Benz GLA cars across different ages and specifications. We first recorded this advert 161 days ago, and its asking price has since fallen by £3,000. Its advertised mileage matches the government's MOT record. The seller is Arnold Clark Ayr Kia, based in AYR. 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: £80 (under 1%) under the AskCar estimate of £21,578.

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 161 days.

Price history

AskCar first saw this advert on 30 May 2026 at £24,498. Its asking price is now £21,498, £3,000 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 30 May 2026: £24,498
• 16 June 2026: £23,998
• 22 July 2026: £23,498
• 13 August 2026: £22,998
• 15 September 2026: £22,498
• 25 September 2026: £21,998
• 23 October 2026: £21,498

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 24 May 2027.

It has had 4 MOTs. The latest, on 25 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 25,298 miles, which matches the advertised 25,299 miles.

Advertised mileage is about 14,700 miles lower than the median mileage of a 2021 Mercedes-Benz GLA on AskCar.

Similar cars

4 other 2021 Mercedes-Benz GLA AMG Line 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £17,995 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 hatchback, black. Mileage: 24,733 miles. Price: £20,498, £1,000 less than this car. Dealer: Arnold Clark Kilmarnock Peugeot Jeep Leapmotor in Kilmarnock. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-9b6ef5b6e34d
• 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel hatchback, silver. Mileage: 21,766 miles. Price: £24,495, £2,997 more than this car. Dealer: Sandown Group Mercedes-Benz of Poole in Poole. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-4072adb8f79d
• 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel hatchback, black. Mileage: 49,207 miles. Price: £19,000, £2,498 less than this car. Dealer: JCT600 Approved Leeds in Leeds. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-a942f4a4fcdb