2020 Mercedes-Benz GLA 1.6 AMG Line Edition

Price: £18,990. Fair price: £71 (under 1%) under the AskCar estimate of £19,061, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,461 priced Mercedes-Benz GLA adverts on AskCar as of 8 November 2026.

AskCar lists 2,535 used Mercedes-Benz GLA from 1,304 UK dealerships, as of 8 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: GLA
  • Trim: AMG Line Edition
  • Version: 1.6 AMG Line Edition DCT FWD Euro 6 (s/s) 5dr 7G
  • Year: 2020
  • Mileage: 10,000 miles
  • Fuel: Petrol
  • Body: SUV, 5 doors, 5 seats
  • Engine: 1.6 litres
  • Gearbox: Automatic (DCT)
  • Drive: Front-wheel drive
  • Colour: Red
  • CO2: 148 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz GLA AMG Line Edition has covered 10,000 miles. Priced at £18,990, it is advertised £71 below the AskCar estimate of £19,061. The AskCar estimate draws on 2,461 Mercedes-Benz GLA adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 38 days ago, and its asking price has since fallen by £600. The latest MOT recorded 11,863 miles, above the advertised mileage. Check this with the dealer. The latest recorded MOT expires on 27 February 2027. It is for sale at Sleaford Car Centre in Peterborough. 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: £71 (under 1%) under the AskCar estimate of £19,061.

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 2020 Mercedes-Benz GLA with the 1.6 petrol engine is typically advertised at £15,000: the median of the 61 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2020 Mercedes-Benz GLA has been on sale for at least 38 days.

Price history

AskCar first saw this advert on 1 October 2026 at £19,590. Its asking price is now £18,990, £600 less. The latest price cut was seen on 13 October 2026.

Price changes recorded:

  • 1 October 2026: £19,590
  • 13 October 2026: £18,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 27 February 2027.

It has had 4 MOTs. The latest, on 5 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 11,863 miles. The advert says 10,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 33,600 miles lower than the median mileage of a 2020 Mercedes-Benz GLA on AskCar.

Similar cars

44 other 2020 Mercedes-Benz GLA AMG Line Edition 1.6 petrol automatic SUVs are for sale at UK dealers, from £9,895 to £18,995, as of 8 November 2026.

The 3 closest to this car in mileage:

  • 2020 Mercedes-Benz GLA AMG Line Edition, 1.6 petrol SUV, black. Mileage: 14,264 miles. Price: £17,680, £1,310 less than this car. Dealer: Big Motoring World Blue Bell Hill in Blue Bell Hill. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2020-16c47ed1e2e8
  • 2020 Mercedes-Benz GLA AMG Line Edition, 1.6 petrol SUV, grey. Mileage: 25,000 miles. Price: £18,995, the same price as this car. Dealer: Romans Of St Albans in St Albans. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2020-a3c9d81fb410
  • 2020 Mercedes-Benz GLA AMG Line Edition, 1.6 petrol SUV, grey. Mileage: 25,058 miles. Price: £17,195, £1,795 less than this car. Dealer: Motor Trust Lancaster in Lancaster. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2020-70cb8bf5d9b6
  • The nearest: 2020 Mercedes-Benz GLA AMG Line Edition, 1.6 petrol SUV, red, under a mile from this car. Mileage: 33,046 miles. Price: £17,600, £1,390 less than this car. Dealer: Marshall Volvo Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2020-6833ec8df4d1

Browse all Mercedes-Benz GLA cars for sale · 2020 Mercedes-Benz GLA price guide

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Photos

35 photos of this car are on its AskCar page.

As of 8 November 2026, AskCar lists 595,629 cars and vans from 12,891 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.