2020 Mercedes-Benz GLB 2.0 AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line Premium
• Version: 2.0 AMG Line Premium Auto Euro 6 5dr
• Year: 2020
• Mileage: 47,457 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 7 seats
• Engine: 2.0 litres
• Gearbox: Automatic
• Colour: White
• CO2: 155 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 47,457 miles on the clock, this 2020 Mercedes-Benz GLB AMG Line Premium has done roughly 3,900 fewer miles than a typical 2020 Mercedes-Benz GLB. Priced at £19,317, it is advertised £2,474 below the AskCar estimate of £21,792. The AskCar estimate uses 841 UK dealer adverts for the Mercedes-Benz GLB, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 59 days ago. Its asking price has since fallen by £1,642. The government's MOT record matches its advertised mileage. You can find this car at Carsa Cannock in Cannock Chase. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Good value: £2,474 (11%) under the AskCar estimate of £21,792.

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 841 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 7 November 2026.

A 2020 Mercedes-Benz GLB with the 2.0 diesel engine is typically advertised at £21,000: the median of the 44 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2020 Mercedes-Benz GLB has been on sale for at least 59 days.

Price history

AskCar first saw this advert on 9 September 2026 at £20,959. Its asking price is now £19,317, £1,642 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 9 September 2026: £20,959
• 21 October 2026: £19,557
• 24 October 2026: £19,317

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 30 January 2027.

It has had 3 MOTs. The latest, on 9 January 2026, passed.

Advisories at the latest test: nearside rear tyre slightly damaged/cracking or perishing; offside rear tyre slightly damaged/cracking or perishing.

Mileage at that test: 41,240 miles, which matches the advertised 47,457 miles.

Advertised mileage is about 3,900 miles lower 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 7 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, white. Mileage: 48,353 miles. Price: £20,999, £1,682 more than this car. Dealer: Hedin Automotive Mercedes-Benz And Smart Of Croydon in Croydon. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-4994a5395148
• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 48,893 miles. Price: £19,900, £583 more than this car. Dealer: Big Motoring World Blue Bell Hill in Blue Bell Hill. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-346ad91c1f04
• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, black. Mileage: 50,400 miles. Price: £19,050, £267 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-a16ff6a747c0

• The nearest: 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, grey, 14 miles from this car. Mileage: 43,000 miles. Price: £23,995, £4,678 more than this car. Dealer: Steven Eagell Toyota Birmingham in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-6424789a8c0a