2021 Mercedes-Benz GLB 2.0 GLB220d AMG Line Premium Plus

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line Premium Plus
• Version: 2.0 GLB220d AMG Line Premium Plus DCT 4WD Euro 6 (s/s) 5dr 8G (187 bhp)
• Year: 2021
• Mileage: 40,273 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 7 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (DCT)
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 40,273 miles, this 2021 Mercedes-Benz GLB AMG Line Premium Plus has covered about 7,100 fewer miles than other 2021 Mercedes-Benz GLB cars. Its asking price of £24,955 is £1,128 below the AskCar estimate of £26,083. 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 recorded this car for sale 4 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Hippo Approved in Blackburn. 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: £1,128 (4%) under the AskCar estimate of £26,083.

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 2021 Mercedes-Benz GLB with the 2.0 diesel engine is typically advertised at £22,800: the median of the 27 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2021 Mercedes-Benz GLB advertised 4 days ago. About half of 2021 Mercedes-Benz GLB cars are gone from sale within a month of being advertised: 78 of the 161 first advertised between 8 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £24,955. 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 7 November 2026: valid until 24 January 2027.

It has had 3 MOTs. The latest, on 23 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 35,658 miles, which matches the advertised 40,273 miles.

Advertised mileage is about 7,100 miles lower than the median mileage of a 2021 Mercedes-Benz GLB on AskCar.

Similar cars

3 other 2021 Mercedes-Benz GLB AMG Line Premium Plus 2.0 diesel automatic SUVs are for sale at UK dealers, from £19,490 to £24,250, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLB AMG Line Premium Plus, 2.0 diesel SUV, grey. Mileage: 35,546 miles. Price: £24,250, £705 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-e2c1645c8abd
• 2021 Mercedes-Benz GLB AMG Line Premium Plus, 2.0 diesel SUV, red. Mileage: 45,672 miles. Price: £22,990, £1,965 less than this car. Dealer: Eastern Western Motor Group Western Mercedes-Benz of Coldstream in Coldstream. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-2a926dca8949
• 2021 Mercedes-Benz GLB AMG Line Premium Plus, 2.0 diesel SUV, black. Mileage: 94,000 miles. Price: £19,490, £5,465 less than this car. Dealer: LVMC in High Ongar. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-5db032f04daf