2021 Mercedes-Benz GLA 2.0 GLA200d AMG Line Executive

Version: 2.0 GLA200d AMG Line Executive DCT Euro 6 (s/s) 5dr 8G (148 bhp)

Price: £18,100. Fair price: £772 (4%) under the AskCar estimate of £18,872, 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 Executive
Version
2.0 GLA200d AMG Line Executive DCT Euro 6 (s/s) 5dr 8G (148 bhp)
Mileage
53,034 miles
Year
2021
Fuel type
Diesel
Body type
SUV
Engine
2.0 L
Gearbox
Automatic
Power
148 bhp
Seats
5
CO2
142 g/km
Colour
Black
Doors
5
Gearbox version
DCT
Engine badge
GLA200d
Emissions standard
Euro 6

About this car

This 2021 Mercedes-Benz GLA AMG Line Executive has covered 53,034 miles, around 12,900 more miles than is typical for its age. The AskCar estimate for this car is £18,872. It is priced at £18,100, which is £772 below that estimate. The AskCar estimate uses 2,501 UK dealer adverts for the Mercedes-Benz GLA, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 1 day. Its recorded MOT is valid until 7 February 2027, and its advertised mileage is consistent with the latest MOT reading. It is for sale at Car Planet Barnet in New Southgate.

Stock data as of 29 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 28 October 2026, 1 day ago.

Recorded asking prices
Date observedAsking price
28 October 2026£18,100
29 October 2026£18,100

Price and mileage comparison

Fair price: £772 (4%) under the AskCar estimate of £18,872.

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 12,900 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: valid until 7 February 2027. 45,489 miles at the last test.

Other matching cars

25 other 2021 Mercedes-Benz GLA AMG Line Executive automatic diesel cars are for sale at UK dealers from £11,494 to £24,350, as of 29 October 2026.

The 5 cheapest:

The 25 matching cars have covered 13,982 to 175,430 miles, compared with 53,034 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

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Photos

4 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.