2021 Mercedes-Benz GLB 2.0

Overview

• Make: Mercedes-Benz
• Model: GLB
• Version: 2.0 Auto Euro 6 5dr
• Year: 2021
• Mileage: 42,742 miles
• Fuel: Diesel
• Body: SUV, 5 doors
• Engine: 2.0 litres
• Gearbox: Automatic
• Colour: White
• CO2: 161 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLB has covered 42,742 miles, around 4,700 fewer miles than is typical for its age. Priced at £21,949, it is advertised £1,300 below the AskCar estimate of £23,249. The AskCar estimate uses UK dealer asking prices, including 802 Mercedes-Benz GLB adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 40 days ago. Its asking price has since fallen by £1,500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Motorpoint Chingford, based in Chingford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,300 (5%) under the AskCar estimate of £23,249.

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 802 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 9 November 2026.

A 2021 Mercedes-Benz GLB with the 2.0 diesel engine is typically advertised at £23,000: the median of the 27 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2021 Mercedes-Benz GLB has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 30 September 2026 at £23,449. Its asking price is now £21,949, £1,500 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 30 September 2026: £23,449
• 3 October 2026: £22,099
• 6 October 2026: £22,349
• 13 October 2026: £22,249
• 20 October 2026: £21,699
• 24 October 2026: £21,799
• 27 October 2026: £21,949

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 26 August 2027.

It failed its MOT on 27 August 2026 (rear brake pad(s) less than 1.5 mm thick) and passed later the same day.

Advisories at the latest test: front brake disc worn, but not excessively; rear brake disc worn, but not excessively.

Mileage at that test: 42,709 miles, which matches the advertised 42,742 miles.

Advertised mileage is about 4,700 miles lower than the median mileage of a 2021 Mercedes-Benz GLB on AskCar.