2021 Mercedes-Benz GLB 1.3 GLB200 AMG Line

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line
• Version: 1.3 AMG Line Auto FWD Euro 6 5dr (160 bhp)
• Year: 2021
• Mileage: 68,465 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 7 seats
• Engine: 1.3 litres, 160 bhp
• Gearbox: Automatic
• Drive: Front-wheel drive
• Colour: Red
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 68,465 miles, this 2021 Mercedes-Benz GLB AMG Line has covered about 21,100 more miles than other 2021 Mercedes-Benz GLB cars. The dealer is asking £17,891, which is £133 above the AskCar estimate of £17,758. To work out the AskCar estimate, we analyse UK dealer adverts for 841 Mercedes-Benz GLB cars across different ages and specifications. Since we first spotted the advert 14 days ago, the asking price has dropped by £99. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone Mercedes-Benz of Glasgow, based in Glasgow. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £133 (under 1%) over the AskCar estimate of £17,758.

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 841 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 7 November 2026.

A 2021 Mercedes-Benz GLB with the 1.3 petrol engine is typically advertised at £21,000: the median of the 52 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 Mercedes-Benz GLB has been on sale for at least 14 days.

Price history

AskCar first saw this advert on 24 October 2026 at £17,990. Its asking price is now £17,891, £99 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 24 October 2026: £17,990
• 3 November 2026: £17,891

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 24 June 2027.

It failed its MOT on 22 June 2026 (windscreen wiper does not clear the windscreen effectively; nearside front road wheel fixing missing) and passed later the same day.

Advisories at the latest test: nearside rear nail in tyre.

Mileage at that test: 63,018 miles, which matches the advertised 68,465 miles.

Advertised mileage is about 21,100 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 £15,795 to £22,595, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, red. Mileage: 70,487 miles. Price: £18,495, £604 more than this car. Dealer: Just Audi VW in Lincoln. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-df6fe025c63e
• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, grey. Mileage: 65,560 miles. Price: £18,495, £604 more than this car. Dealer: Motoroo in Basildon. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-0171ad620b6e
• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, black. Mileage: 62,621 miles. Price: £18,110, £219 more than this car. Dealer: Big Motoring World Enfield in Enfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-d5e073fadbeb

• The nearest: 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, white, 130 miles from this car. Mileage: 87,258 miles. Price: £16,800, £1,091 less than this car. Dealer: Evans Halshaw Renault Durham in Durham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-a71dbc81f46a