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: 50,266 miles
• Fuel: Diesel
• Body: 5 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic (DCT)
• Colour: White
• CO2: 148 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLA AMG Line has covered 50,266 miles, around 10,200 more miles than is typical for its age. Its asking price of £20,850 is £1,073 above the AskCar estimate of £19,777. The AskCar estimate uses 2,442 UK dealer adverts for the Mercedes-Benz GLA, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 166 days ago, the asking price has dropped by £2,300. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Sytner Group Mercedes-Benz of Cheltenham & Gloucester in Staverton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,073 (5%) over the AskCar estimate of £19,777.

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 2,442 priced Mercedes-Benz GLA adverts across different ages and specifications, as of 10 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 10 November 2026.

Time on sale

This 2021 Mercedes-Benz GLA has been on sale for at least 166 days.

Price history

AskCar first saw this advert on 28 May 2026 at £23,150. Its asking price is now £20,850, £2,300 less. The latest price cut was seen on 15 October 2026.

Price changes recorded:

• 28 May 2026: £23,150
• 16 June 2026: £22,475
• 17 June 2026: £23,000
• 23 June 2026: £21,990
• 3 July 2026: £21,000
• 7 July 2026: £19,990
• 21 August 2026: £20,750
• 30 August 2026: £20,500
• 1 October 2026: £21,000
• 15 October 2026: £20,850

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 19 April 2027.

It has had 3 MOTs. The latest, on 20 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 49,996 miles, which matches the advertised 50,266 miles.

Advertised mileage is about 10,200 miles higher than the median mileage of a 2021 Mercedes-Benz GLA on AskCar.