2021 Mercedes-Benz GLB 1.3 GLB200 AMG Line

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line
• Version: 1.3 GLB200 AMG Line DCT FWD Euro 6 (s/s) 5dr 7G (161 bhp)
• Year: 2021
• Mileage: 101,000 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 7 seats
• Engine: 1.3 litres, 161 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLB AMG Line is advertised with 101,000 miles, approximately 54,100 above the typical mileage for its age. Priced at £15,795, it is advertised £1,052 above the AskCar estimate of £14,743. The AskCar estimate uses 822 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 42 days ago. You can find this car at Hiline Motors in Birmingham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,052 (7%) over the AskCar estimate of £14,743.

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 822 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 8 November 2026.

A 2021 Mercedes-Benz GLB with the 1.3 petrol engine is typically advertised at £21,000: the median of the 51 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 Mercedes-Benz GLB has been on sale for at least 42 days.

Price history

AskCar first saw this advert on 27 September 2026 at £15,795. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 54,100 miles higher than the median mileage of a 2021 Mercedes-Benz GLB on AskCar.

Similar cars

25 other 2021 Mercedes-Benz GLB AMG Line 1.3 petrol automatic SUVs are for sale at UK dealers, from £15,990 to £22,595, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, grey. Mileage: 95,412 miles. Price: £15,990, £195 more than this car. Dealer: Lennox Auto in Brent. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-082e830efff0
• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, blue. Mileage: 90,000 miles. Price: £16,995, £1,200 more than this car. Dealer: Rix Motors in Warrington. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-f31d8a05af77
• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, white. Mileage: 87,258 miles. Price: £16,800, £1,005 more than this car. Dealer: Evans Halshaw Renault Durham in Durham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-a71dbc81f46a

• The nearest: 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, silver, 4 miles from this car. Mileage: 19,431 miles. Price: £21,360, £5,565 more than this car. Dealer: Evans Halshaw BYD Birmingham in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-daa00f0e95a6