2021 Mercedes-Benz GLA 2.0 AMG Line

Version: 2.0 AMG Line DCT Euro 6 (s/s) 5dr 8G

Price: £19,999. Fair price: £829 (3%) under the AskCar estimate of £20,828, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,501 priced Mercedes-Benz GLA adverts on AskCar as of 29 October 2026.

AskCar lists 2,541 used Mercedes-Benz GLA from 1,313 UK dealerships, as of 29 October 2026.

Overview

Make
Mercedes-Benz
Model
GLA
Trim
AMG Line
Version
2.0 AMG Line DCT Euro 6 (s/s) 5dr 8G
Mileage
42,442 miles
Year
2021
Fuel type
Diesel
Body type
SUV
Engine
2.0 L
Gearbox
Automatic
Seats
5
Colour
White
Doors
5
Gearbox version
DCT
Emissions standard
Euro 6

About this car

At 42,442 miles, this 2021 Mercedes-Benz GLA AMG Line has covered about 2,300 more miles than other 2021 Mercedes-Benz GLA cars. The dealer is asking £19,999, which is £829 below the AskCar estimate of £20,828. To work out the AskCar estimate, we analyse UK dealer adverts for 2,501 Mercedes-Benz GLA cars across different ages and specifications. This car was first seen in our listings data today. Our latest MOT record expired on 24 October 2026. Check the current position with the dealer. Our comparison with the latest MOT reading has not flagged a mileage discrepancy.

Stock data as of 29 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 29 October 2026.

Recorded asking prices
Date observedAsking price
29 October 2026£19,999

Price and mileage comparison

Fair price: £829 (3%) under the AskCar estimate of £20,828.

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 2,501 priced Mercedes-Benz GLA adverts across different ages and specifications, as of 29 October 2026.

Advertised mileage is about 2,300 miles higher than the median mileage of a 2021 Mercedes-Benz GLA on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: the latest record we hold ran out on 24 October 2026; ask the dealer for the current MOT. 25,657 miles at the last test.

Other matching cars

18 other 2021 Mercedes-Benz GLA AMG Line automatic diesel cars are for sale at UK dealers from £17,695 to £24,495, as of 29 October 2026.

The 5 cheapest:

The 18 matching cars have covered 21,258 to 66,064 miles, compared with 42,442 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

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

More like this

Photos

28 photos of this car are on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.