2020 Mercedes-Benz GLB 2.0 GLB220d AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line Premium
• Version: 2.0 GLB220d AMG Line Premium DCT 4WD Euro 6 (s/s) 5dr 8G (5 Seat) (187 bhp)
• Year: 2020
• Mileage: 59,400 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (DCT)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 161 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 59,400 miles on the clock, this 2020 Mercedes-Benz GLB AMG Line Premium has done roughly 8,100 more miles than a typical 2020 Mercedes-Benz GLB. The AskCar estimate for this car is £20,914. It is priced at £20,490, which is £424 below that estimate. The AskCar estimate uses UK dealer asking prices, including 863 Mercedes-Benz GLB adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 78 days ago. Its asking price has since fallen by £500. The government's MOT record matches its advertised mileage. You can find this car at S James Prestige in Stamford. 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: £424 (2%) under the AskCar estimate of £20,914.

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 863 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 6 November 2026.

A 2020 Mercedes-Benz GLB with the 2.0 diesel engine is typically advertised at £21,000: the median of the 43 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2020 Mercedes-Benz GLB has been on sale for at least 78 days.

Price history

AskCar first saw this advert on 20 August 2026 at £20,990. Its asking price is now £20,490, £500 less. The latest price cut was seen on 22 September 2026.

Price changes recorded:

• 20 August 2026: £20,990
• 22 September 2026: £20,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 1 June 2027.

It failed its MOT on 2 June 2026 (nearside front tyre has a tear, caused by separation or partial failure of its structure) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 58,508 miles, which matches the advertised 59,400 miles.

Advertised mileage is about 8,100 miles higher than the median mileage of a 2020 Mercedes-Benz GLB on AskCar.

Similar cars

29 other 2020 Mercedes-Benz GLB AMG Line Premium 2.0 diesel automatic SUVs are for sale at UK dealers, from £16,000 to £24,995, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, black. Mileage: 59,591 miles. Price: £24,995, £4,505 more than this car. Dealer: Agnew Group Mercedes-Benz Of Belfast in Belfast. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-3807ca061664
• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 60,512 miles. Price: £20,200, £290 less than this car. Dealer: Marshall Approved Used Melton Mowbray in Melton Mowbray. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-ecff36784421
• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, blue. Mileage: 55,555 miles. Price: £22,500, £2,010 more than this car. Dealer: Sytner Group Mercedes-Benz of Watford in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-b6d18aa575e4

• The nearest: 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, black, 9 miles from this car. Mileage: 71,484 miles. Price: £19,180, £1,310 less than this car. Dealer: Hippo Motor Group Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-0e633506e8c3