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: 90,000 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

At 90,000 miles, this 2021 Mercedes-Benz GLB AMG Line has covered about 42,600 more miles than other 2021 Mercedes-Benz GLB cars. The dealer is asking £16,995, which is £1,125 above the AskCar estimate of £15,870. To work out the AskCar estimate, we analyse UK dealer adverts for 802 Mercedes-Benz GLB cars across different ages and specifications. We have tracked this advert for 10 days. Its advertised mileage matches the government's MOT record. It is advertised by Rix Motors in Warrington. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,125 (7%) over the AskCar estimate of £15,870.

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 802 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 9 November 2026.

A 2021 Mercedes-Benz GLB with the 1.3 petrol engine is typically advertised at £21,000: the median of the 50 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2021 Mercedes-Benz GLB has been on sale for at least 10 days.

Price history

AskCar first saw this advert on 30 October 2026 at £16,995. 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 9 November 2026: valid until 8 July 2027.

It has had 4 MOTs. The latest, on 7 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 88,346 miles, which matches the advertised 90,000 miles.

Advertised mileage is about 42,600 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 9 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, white. Mileage: 87,258 miles. Price: £16,800, £195 less than this car. Dealer: Evans Halshaw Renault Durham in Durham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-a71dbc81f46a
• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, grey. Mileage: 95,412 miles. Price: £15,990, £1,005 less 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, red. Mileage: 80,000 miles. Price: £17,900, £905 more than this car. Dealer: Mylson in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-e3b3f83b859f