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: 68,500 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (DCT)
• Drive: Four-wheel drive
• Colour: White
• CO2: 161 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 68,500 miles, this 2020 Mercedes-Benz GLB AMG Line Premium has covered about 17,200 more miles than other 2020 Mercedes-Benz GLB cars. Its asking price of £18,699 is £1,002 below the AskCar estimate of £19,701. 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 70 days ago. Its asking price has since fallen by £1,300. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Prestige Car Supermarket in York. 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

Fair price: £1,002 (5%) under the AskCar estimate of £19,701.

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 70 days.

Price history

AskCar first saw this advert on 29 August 2026 at £19,999. Its asking price is now £18,699, £1,300 less. The latest price cut was seen on 13 October 2026.

Price changes recorded:

• 29 August 2026: £19,999
• 8 September 2026: £19,899
• 12 September 2026: £19,999
• 13 September 2026: £19,899
• 17 September 2026: £19,799
• 22 September 2026: £19,699
• 25 September 2026: £19,499
• 28 September 2026: £19,399
• 29 September 2026: £19,299
• 4 October 2026: £19,199
• 6 October 2026: £19,099
• 7 October 2026: £18,999
• 10 October 2026: £18,899
• 12 October 2026: £18,799
• 13 October 2026: £18,699

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 14 April 2027.

It has had 5 MOTs. The latest, on 15 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 65,458 miles, which matches the advertised 68,500 miles.

Advertised mileage is about 17,200 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 7 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 67,137 miles. Price: £19,798, £1,099 more than this car. Dealer: Eddie Wright Car Supermarket in Scunthorpe. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-f5e2bbd61c9f
• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, black. Mileage: 70,448 miles. Price: £19,500, £801 more than this car. Dealer: Westley Motor Company in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-6a5084939c2e
• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, black. Mileage: 71,484 miles. Price: £19,200, £501 more than this car. Dealer: Hippo Motor Group Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-0e633506e8c3

• The nearest: 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, grey, 26 miles from this car. Mileage: 55,506 miles. Price: £19,929, £1,230 more than this car. Dealer: Stratstone Mercedes-Benz of Wakefield in Wakefield. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-e1e82233bf86