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 (s/s) 5dr 8G
• Year: 2021
• Mileage: 66,064 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic (DCT)
• Colour: Grey
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 66,064 miles on the clock, this 2021 Mercedes-Benz GLA AMG Line has done roughly 26,100 more miles than a typical 2021 Mercedes-Benz GLA. Its asking price of £17,790 is £490 below the AskCar estimate of £18,280. The AskCar estimate uses UK dealer asking prices, including 2,461 Mercedes-Benz GLA adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 63 days ago, the asking price has dropped by £200. The government's MOT record matches its advertised mileage. You can find this car at Phantom Motor Company in Wigan. 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: £490 (2%) under the AskCar estimate of £18,280.

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 63 days.

Price history

AskCar first saw this advert on 6 September 2026 at £17,990. Its asking price is now £17,790, £200 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

• 6 September 2026: £17,990
• 21 October 2026: £17,790

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 26 March 2027.

It failed its MOT on 20 March 2026 (offside front headlamp aim too low) and passed later the same day.

Advisories at the latest test: front wiper blades smearing; offside rear nail in tyre; offside rear tyre slightly damaged/cracking or perishing.

Mileage at that test: 65,944 miles, which matches the advertised 66,064 miles.

Advertised mileage is about 26,100 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 £17,990 to £24,495, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel SUV, silver. Mileage: 65,662 miles. Price: £17,990, £200 more than this car. Dealer: Group 1 Automotive Mercedes-Benz of North Wales in Conwy. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-3dde39728abd
• 2021 Mercedes-Benz GLA AMG Line, 2.0 diesel SUV, black. Mileage: 63,359 miles. Price: £18,450, £660 more 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, black. Mileage: 52,967 miles. Price: £19,995, £2,205 more 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, blue, 18 miles from this car. Mileage: 43,163 miles. Price: £20,574, £2,784 more than this car. Dealer: cinch in Oldham. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-65179ee62716