2021 Mercedes-Benz GLB 1.3 GLB200 AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line Premium
• Version: 1.3 AMG Line Premium Auto FWD Euro 6 5dr (161 bhp)
• Year: 2021
• Mileage: 41,340 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 7 seats
• Engine: 1.3 litres, 161 bhp
• Gearbox: Automatic
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 41,340 miles, this 2021 Mercedes-Benz GLB AMG Line Premium has covered about 5,500 fewer miles than other 2021 Mercedes-Benz GLB cars. The AskCar estimate for this car is £21,723. It is priced at £23,498, which is £1,775 above that estimate. The AskCar estimate draws on 822 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 15 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Mercedes-Benz of Grangemouth, based in Grangemouth. 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

Above the going rate: £1,775 (8%) over the AskCar estimate of £21,723.

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 15 days.

Price history

AskCar first saw this advert on 24 October 2026 at £23,498. 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 8 November 2026: valid until 22 October 2027.

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

Advisories at the latest test: front windscreen damaged but not adversely affecting driver's view.

Mileage at that test: 41,350 miles, which matches the advertised 41,340 miles.

Advertised mileage is about 5,500 miles lower than the median mileage of a 2021 Mercedes-Benz GLB on AskCar.

Similar cars

15 other 2021 Mercedes-Benz GLB AMG Line Premium 1.3 petrol automatic SUVs are for sale at UK dealers, from £18,480 to £23,117, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, blue. Mileage: 42,500 miles. Price: £21,995, £1,503 less than this car. Dealer: Evo Motor Group in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-ce92dd512ddb
• 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, blue. Mileage: 38,116 miles. Price: £22,079, £1,419 less than this car. Dealer: cinch in Bolton. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-41986bfc5ed3
• 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, red. Mileage: 38,019 miles. Price: £19,250, £4,248 less than this car. Dealer: Swansway Garages Swansway Honda Stockport in Stockport. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-5d647c1bf23a

• The nearest: 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, red, 39 miles from this car. Mileage: 60,418 miles. Price: £20,998, £2,500 less than this car. Dealer: Arnold Clark Greenock East Hamilton Street Lepas in Greenock. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-fa8f4dd361e5