2021 Mercedes-Benz GLB 1.3 GLB200 AMG Line Premium

Price: £18,750. Above the going rate: £2,884 (18%) over the AskCar estimate of £15,866, our expected asking price for this car from its model, age, mileage and specification, drawing on 841 priced Mercedes-Benz GLB adverts on AskCar as of 7 November 2026.

AskCar lists 873 used Mercedes-Benz GLB from 394 UK dealerships, as of 7 November 2026.

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: 92,677 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

At 92,677 miles, this 2021 Mercedes-Benz GLB AMG Line Premium has covered about 45,300 more miles than other 2021 Mercedes-Benz GLB cars. Its asking price of £18,750 is £2,884 above the AskCar estimate of £15,866. The AskCar estimate draws on 841 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 88 days ago. The latest recorded MOT expiry date is 8 September 2026, which has passed. Confirm its status with the dealer. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Armiah in Nuneaton and Bedworth. 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

Above the going rate: £2,884 (18%) over the AskCar estimate of £15,866.

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 88 days.

Price history

AskCar first saw this advert on 11 August 2026 at £18,750. 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 7 November 2026: the latest record we hold ran out on 8 September 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 9 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 84,240 miles, which matches the advertised 92,677 miles.

Advertised mileage is about 45,300 miles higher than the median mileage of a 2021 Mercedes-Benz GLB on AskCar.

Similar cars

16 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 7 November 2026.

The 3 closest to this car in mileage:

  • 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, grey. Mileage: 71,049 miles. Price: £18,480, £270 less than this car. Dealer: Marshall Volkswagen Harlow in Harlow. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-8cb7957f2a35
  • 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, grey. Mileage: 60,500 miles. Price: £19,995, £1,245 more than this car. Dealer: Amanah Prestige in Barking and Dagenham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-80e76420ebcf
  • 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, red. Mileage: 60,418 miles. Price: £20,998, £2,248 more 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
  • The nearest: 2021 Mercedes-Benz GLB AMG Line Premium, 1.3 petrol SUV, white, 18 miles from this car. Mileage: 10,000 miles. Price: £19,495, £745 more than this car. Dealer: National Car Hub in Walsall. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-c2fe1419ea12

Browse all Mercedes-Benz GLB cars for sale · 2021 Mercedes-Benz GLB price guide

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Photos

89 photos of this car are on its AskCar page.

As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.