2021 Mercedes-Benz GLB 2.0 AMG Line

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line
• Version: 2.0 AMG Line Auto Euro 6 5dr
• Year: 2021
• Mileage: 53,361 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 7 seats
• Engine: 2.0 litres
• Gearbox: Automatic
• Colour: White
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLB AMG Line has covered 53,361 miles, around 6,700 more miles than is typical for its age. Priced at £23,499, it is advertised £889 above the AskCar estimate of £22,610. The AskCar estimate draws on 863 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 8 days ago. Its advertised mileage matches the government's MOT record. The seller is Stratstone Mercedes-Benz Of Hamilton, based in Hamilton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £889 (3%) over the AskCar estimate of £22,610.

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 863 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 6 November 2026.

A 2021 Mercedes-Benz GLB with the 2.0 diesel engine is typically advertised at £22,800: the median of the 28 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2021 Mercedes-Benz GLB has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 29 October 2026 at £23,499. 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 6 November 2026: valid until 28 July 2027.

It has had 3 MOTs. The latest, on 18 July 2026, passed.

Advisories at the latest test: front brake disc worn, pitted or scored, but not seriously weakened.

Mileage at that test: 50,688 miles, which matches the advertised 53,361 miles.

Advertised mileage is about 6,700 miles higher than the median mileage of a 2021 Mercedes-Benz GLB on AskCar.

Similar cars

2 other 2021 Mercedes-Benz GLB AMG Line 2.0 diesel automatic SUVs are for sale at UK dealers, from £17,450 to £20,699, as of 6 November 2026.

The 2 closest to this car in mileage:

• 2021 Mercedes-Benz GLB AMG Line, 2.0 diesel SUV, white. Mileage: 53,873 miles. Price: £20,699, £2,800 less than this car. Dealer: Henson Car Store in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-7b3b2fa923fd
• 2021 Mercedes-Benz GLB AMG Line, 2.0 diesel SUV, black. Mileage: 76,940 miles. Price: £17,450, £6,049 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-ea1c41a39812