2021 Mercedes-Benz GLB 1.3 GLB200 AMG Line Premium Plus

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line Premium Plus
• Version: 1.3 AMG Line Premium Plus Auto FWD Euro 6 5dr (161 bhp)
• Year: 2021
• Mileage: 35,883 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 7 seats
• Engine: 1.3 litres, 161 bhp
• Gearbox: Automatic
• Drive: Front-wheel drive
• Colour: Red
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 35,883 miles, this 2021 Mercedes-Benz GLB AMG Line Premium Plus has covered about 11,500 fewer miles than other 2021 Mercedes-Benz GLB cars. The dealer is asking £23,300, which is £14 above the AskCar estimate of £23,286. To work out the AskCar estimate, we analyse UK dealer adverts for 835 Mercedes-Benz GLB cars across different ages and specifications. The asking price is now £500 lower than when we first recorded the advert 11 days ago. You can find this car at Vertu Mercedes Ascot in Bracknell. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £14 (under 1%) over the AskCar estimate of £23,286.

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 835 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 10 November 2026.

A 2021 Mercedes-Benz GLB with the 1.3 petrol engine is typically advertised at £21,000: the median of the 53 for sale on AskCar, as of 10 November 2026.

Time on sale

This 2021 Mercedes-Benz GLB has been on sale for at least 11 days.

Price history

AskCar first saw this advert on 30 October 2026 at £23,800. Its asking price is now £23,300, £500 less. The latest price cut was seen on 9 November 2026.

Price changes recorded:

• 30 October 2026: £23,800
• 9 November 2026: £23,300

Mileage and MOT

Advertised mileage is about 11,500 miles lower than the median mileage of a 2021 Mercedes-Benz GLB on AskCar.

Similar cars

8 other 2021 Mercedes-Benz GLB AMG Line Premium Plus 1.3 petrol automatic SUVs are for sale at UK dealers, from £19,994 to £25,450, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLB AMG Line Premium Plus, 1.3 petrol SUV, white. Mileage: 34,626 miles. Price: £23,499, £199 more than this car. Dealer: Prestige Motor Trader in Croydon. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-7481582e1d18
• 2021 Mercedes-Benz GLB AMG Line Premium Plus, 1.3 petrol SUV, white. Mileage: 33,100 miles. Price: £24,490, £1,190 more than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-3052f26bc530
• 2021 Mercedes-Benz GLB AMG Line Premium Plus, 1.3 petrol SUV, white. Mileage: 43,100 miles. Price: £22,990, £310 less than this car. Dealer: Lkc Motors in Worksop. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-a16fa2adbed2

• The nearest: 2021 Mercedes-Benz GLB AMG Line Premium Plus, 1.3 petrol SUV, white, 9 miles from this car. Mileage: 20,863 miles. Price: £24,698, £1,398 more than this car. Dealer: Arnold Clark Chertsey Motorstore / Geely in Chertsey. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-1e208b8bf8b4