2020 Mercedes-Benz GLB 2.0 GLB200d AMG Line

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line
• Version: 2.0 AMG Line Auto FWD Euro 6 5dr (147 bhp)
• Year: 2020
• Mileage: 42,276 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 7 seats
• Engine: 2.0 litres, 147 bhp
• Gearbox: Automatic
• Drive: Front-wheel drive
• Colour: Black
• CO2: 148 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz GLB AMG Line has covered 42,276 miles, around 9,500 fewer miles than is typical for its age. The AskCar estimate for this car is £21,826. It is priced at £22,960, which is £1,134 above that estimate. The AskCar estimate uses 848 UK dealer adverts for the Mercedes-Benz GLB, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 1 day. Its advertised mileage matches the government's MOT record. The seller is Evans Halshaw Ford Motherwell, based in Motherwell. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,134 (5%) over the AskCar estimate of £21,826.

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 848 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 12 November 2026.

A 2020 Mercedes-Benz GLB with the 2.0 diesel engine is typically advertised at £20,500: the median of the 41 for sale on AskCar, as of 12 November 2026.

Time on sale

AskCar first saw this 2020 Mercedes-Benz GLB advertised 1 day ago. About half of 2020 Mercedes-Benz GLB cars are gone from sale within a month of being advertised: 56 of the 117 first advertised between 13 July 2026 and 9 October 2026.

Price history

AskCar first saw this advert on 11 November 2026 at £22,960. 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 12 November 2026: valid until 15 February 2027.

It has had 6 MOTs. The latest, on 12 February 2026, passed.

Advisories at the latest test: offside front tyre worn close to legal limit/worn on edge wear to edges(approx 3mm).

Mileage at that test: 38,197 miles, which matches the advertised 42,276 miles.

Advertised mileage is about 9,500 miles lower than the median mileage of a 2020 Mercedes-Benz GLB on AskCar.

Similar cars

3 other 2020 Mercedes-Benz GLB AMG Line 2.0 diesel automatic SUVs are for sale at UK dealers, from £18,299 to £25,300, as of 12 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz GLB AMG Line, 2.0 diesel SUV, white. Mileage: 32,674 miles. Price: £25,099, £2,139 more than this car. Dealer: cinch in Canterbury. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-ec41113ad8e7
• 2020 Mercedes-Benz GLB AMG Line, 2.0 diesel SUV, blue. Mileage: 28,299 miles. Price: £25,300, £2,340 more than this car. Dealer: Lookers Mercedes-Benz of Gatwick in Crawley. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-1afa49e14a6f
• 2020 Mercedes-Benz GLB AMG Line, 2.0 diesel SUV, grey. Mileage: 64,000 miles. Price: £18,299, £4,661 less than this car. Dealer: Abaza Motors in Ealing. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-cfd9d1f23834