2021 Mercedes-Benz GLA 2.0 AMG Line Executive

Overview

• Make: Mercedes-Benz
• Model: GLA
• Trim: AMG Line Executive
• Version: 2.0 AMG Line Executive DCT Euro 6 5dr 8G
• Year: 2021
• Mileage: 33,000 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic (DCT)
• Colour: Blue
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLA AMG Line Executive has covered 33,000 miles, around 7,000 fewer miles than is typical for its age. The AskCar estimate for this car is £21,731. It is priced at £20,490, which is £1,241 below that estimate. The AskCar estimate uses 2,461 UK dealer adverts for the Mercedes-Benz GLA, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 164 days ago, and its asking price has since fallen by £2,000. Its advertised mileage matches the government's MOT record. It is for sale at Csg Motor Company in Chalfont St Giles. 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: £1,241 (5%) under the AskCar estimate of £21,731.

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 164 days.

Price history

AskCar first saw this advert on 28 May 2026 at £22,490. Its asking price is now £20,490, £2,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 28 May 2026: £22,490
• 8 August 2026: £21,990
• 30 September 2026: £20,990
• 4 November 2026: £20,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 14 February 2027.

It has had 3 MOTs. The latest, on 2 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 32,380 miles, which matches the advertised 33,000 miles.

Advertised mileage is about 7,000 miles lower 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, silver. Mileage: 37,689 miles. Price: £20,998, £508 more than this car. Dealer: Arnold Clark Mercedes-Benz of Inverness in Inverness. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-d9ef75f1a97f
• 2021 Mercedes-Benz GLA AMG Line Executive, 2.0 diesel hatchback, white. Mileage: 51,028 miles. Price: £19,199, £1,291 less than this car. Dealer: Stratstone Mercedes-Benz Of Hamilton in Hamilton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-2e7fe6045d30
• 2021 Mercedes-Benz GLA AMG Line Executive, 2.0 diesel hatchback, red. Mileage: 56,460 miles. Price: £20,898, £408 more than this car. Dealer: Arnold Clark Kirkcaldy BMW in Kirkcaldy. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-316a0a3c1ab2

• The nearest: 2021 Mercedes-Benz GLA AMG Line Executive, 2.0 diesel hatchback, black, 317 miles from this car. Mileage: 62,643 miles. Price: £18,998, £1,492 less than this car. Dealer: Arnold Clark Edinburgh Seafield MG / OMODA / JAECOO in Edinburgh. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-b94662cd6a16