2021 Mercedes-Benz GLB 1.3 GLB200 AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line Premium
• Version: 1.3 GLB200 AMG Line Premium DCT FWD Euro 6 (s/s) 5dr 2) 7G (161 bhp)
• Year: 2021
• Mileage: 29,250 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 7 seats
• Engine: 1.3 litres, 161 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLB AMG Line Premium has covered 29,250 miles, around 17,600 fewer miles than is typical for its age. Priced at £22,495, it is advertised £480 below the AskCar estimate of £22,975. The AskCar estimate uses 822 UK dealer adverts for the Mercedes-Benz GLB, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 59 days ago, the asking price has dropped by £1,500. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Georgesons Car Sales in Liverpool. 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: £480 (2%) under the AskCar estimate of £22,975.

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 59 days.

Price history

AskCar first saw this advert on 10 September 2026 at £23,995. Its asking price is now £22,495, £1,500 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 10 September 2026: £23,995
• 17 October 2026: £22,995
• 23 October 2026: £22,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 11 June 2027.

It failed its MOT on 2 June 2026 (horn not working; windscreen wiper blade defective both front) and passed 10 days later, on 12 June 2026.

Advisories at the latest test: windscreen wiper blade defective both front.

Mileage at that test: 27,121 miles, which matches the advertised 29,250 miles.

Advertised mileage is about 17,600 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 £23,498, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, black. Mileage: 33,468 miles. Price: £23,117, £622 more than this car. Dealer: Stratstone Mercedes-Benz of Ipswich in Ipswich. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-668eefd86e11
• 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, blue. Mileage: 33,850 miles. Price: £22,995, £500 more than this car. Dealer: Skinners Of Rye in Rye. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-c1cb2422bd41
• 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, grey. Mileage: 24,580 miles. Price: £21,995, £500 less than this car. Dealer: Aim Autos in Tockwith. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-2a54e3097462

• The nearest: 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, blue, 24 miles from this car. Mileage: 38,116 miles. Price: £22,079, £416 less than this car. Dealer: cinch in Bolton. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-41986bfc5ed3