2018 Mercedes-Benz GLA 2.1 AMG Line

Overview

• Make: Mercedes-Benz
• Model: GLA
• Trim: AMG Line
• Version: 2.1 AMG Line DCT 4WD Euro 6 (s/s) 5dr 7G
• Year: 2018
• Mileage: 20,947 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.1 litres
• Gearbox: Automatic (DCT)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 130 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz GLA AMG Line has covered 20,947 miles, around 44,100 fewer miles than is typical for its age. The dealer is asking £16,499, which is £425 above the AskCar estimate of £16,074. To work out the AskCar estimate, we analyse UK dealer adverts for 2,516 Mercedes-Benz GLA cars across different ages and specifications. Since we first spotted the advert 35 days ago, the asking price has dropped by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Gates Of St Albans, based in St Albans. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £425 (2%) over the AskCar estimate of £16,074.

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 2,516 priced Mercedes-Benz GLA adverts across different ages and specifications, as of 6 November 2026.

A 2018 Mercedes-Benz GLA with the 2.1 diesel engine is typically advertised at £11,900: the median of the 140 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2018 Mercedes-Benz GLA has been on sale for at least 35 days.

Price history

AskCar first saw this advert on 2 October 2026 at £16,999. Its asking price is now £16,499, £500 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 2 October 2026: £16,999
• 28 October 2026: £16,699
• 3 November 2026: £16,499

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 10 September 2027.

It has had 6 MOTs. The latest, on 7 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 20,744 miles, which matches the advertised 20,947 miles.

Advertised mileage is about 44,100 miles lower than the median mileage of a 2018 Mercedes-Benz GLA on AskCar.

Similar cars

29 other 2018 Mercedes-Benz GLA AMG Line 2.1 diesel automatic SUVs are for sale at UK dealers, from £6,690 to £16,990, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz GLA AMG Line, 2.1 diesel SUV, black. Mileage: 31,000 miles. Price: £13,990, £2,509 less than this car. Dealer: Lawson Motor Company in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2018-58e501c6b5ae
• 2018 Mercedes-Benz GLA AMG Line, 2.1 diesel SUV, white. Mileage: 46,551 miles. Price: £13,799, £2,700 less than this car. Dealer: Luxo Motors in Epping. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2018-79b301449f87
• 2018 Mercedes-Benz GLA AMG Line, 2.1 diesel SUV, black. Mileage: 50,000 miles. Price: £12,480, £4,019 less than this car. Dealer: Pinnacle Cars in Sheffield. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2018-e4a6fab9cd19

• The nearest: 2018 Mercedes-Benz GLA AMG Line, 2.1 diesel SUV, grey, 7 miles from this car. Mileage: 107,000 miles. Price: £8,700, £7,799 less than this car. Dealer: CNH Cars in Welwyn. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2018-38f06fa16bb8