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: 59,591 miles
• Fuel: Diesel
• Body: SUV, 5 doors
• Engine: 2.0 litres
• Gearbox: Automatic
• Colour: Black
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 59,591 miles, this 2020 Mercedes-Benz GLB AMG Line Premium has covered about 8,100 more miles than other 2020 Mercedes-Benz GLB cars. The dealer is asking £24,995, which is £4,471 above the AskCar estimate of £20,524. To work out the AskCar estimate, we analyse UK dealer adverts for 822 Mercedes-Benz GLB cars across different ages and specifications. This car was first seen in our listings data 9 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Agnew Group Mercedes-Benz Of Belfast, based in Belfast. 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

Above the going rate: £4,471 (21%) over the AskCar estimate of £20,524.

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 822 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 8 November 2026.

A 2020 Mercedes-Benz GLB with the 2.0 diesel engine is typically advertised at £21,000: the median of the 42 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2020 Mercedes-Benz GLB has been on sale for at least 9 days.

Price history

AskCar first saw this advert on 30 October 2026 at £24,995. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 3 January 2027.

It has had one MOT, on 4 January 2025, and passed.

There were no advisories at the latest test.

Mileage at that test: 48,871 miles, which matches the advertised 59,591 miles.

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

Similar cars

28 other 2020 Mercedes-Benz GLB AMG Line Premium 2.0 diesel automatic SUVs are for sale at UK dealers, from £16,000 to £23,995, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, black. Mileage: 59,400 miles. Price: £20,490, £4,505 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-8ce072a5e4ba
• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 60,512 miles. Price: £20,200, £4,795 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, £2,495 less 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, grey, 157 miles from this car. Mileage: 40,000 miles. Price: £22,780, £2,215 less than this car. Dealer: Phantom Motor Company in Hindley Green. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-1a2bc73dc5b0