2021 Mercedes-Benz GLB 1.3 GLB200 AMG Line
Version: 1.3 AMG Line Auto FWD Euro 6 5dr (160 bhp)
Price: £22,595. Fair price: £646 (2%) over the AskCar estimate of £21,949, our expected asking price for this car from its model, age, mileage and specification, drawing on 877 priced Mercedes-Benz GLB adverts on AskCar as of 31 October 2026.
AskCar lists 885 used Mercedes-Benz GLB from 402 UK dealerships, as of 31 October 2026.
Overview
- Make
- Mercedes-Benz
- Model
- GLB
- Trim
- AMG Line
- Version
- 1.3 AMG Line Auto FWD Euro 6 5dr (160 bhp)
- Mileage
- 27,160 miles
- Year
- 2021
- Fuel type
- Petrol
- Body type
- SUV
- Engine
- 1.3 L
- Gearbox
- Automatic
- Power
- 160 bhp
- Seats
- 7
- CO2
- 163 g/km
- Colour
- Black
- Doors
- 5
- Driven wheels
- Front Wheel Drive
- Engine badge
- GLB200
- Emissions standard
- Euro 6
About this car
This 2021 Mercedes-Benz GLB AMG Line is advertised with 27,160 miles, approximately 16,800 below the typical mileage for its age. Priced at £22,595, it is advertised £646 above the AskCar estimate of £21,949. The AskCar estimate draws on 877 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. MOT records show an expiry date of 21 September 2027, and the latest recorded mileage is consistent with the advert. The seller is Sandown Group Mercedes-Benz of Poole, based in Poole.
Stock data as of 31 October 2026.
Price history
AskCar first saw this advert on 31 October 2026.
| Date observed | Asking price |
|---|---|
| 31 October 2026 | £22,595 |
Price and mileage comparison
Fair price: £646 (2%) over the AskCar estimate of £21,949.
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 877 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 31 October 2026.
Advertised mileage is about 16,800 miles lower than the median mileage of a 2021 Mercedes-Benz GLB on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 21 September 2027. 25,873 miles at the last test.
Other matching cars
27 other 2021 Mercedes-Benz GLB AMG Line automatic petrol cars are for sale at UK dealers from £15,795 to £22,495, as of 31 October 2026.
The 5 cheapest:
- 2021 Mercedes-Benz GLB. Price: £15,795. Mileage: 101,000 miles. Dealer: Hiline Motors in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-781004d250b5
- 2021 Mercedes-Benz GLB. Price: £15,990. Mileage: 95,412 miles. Dealer: Lennox Auto in Brent. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-082e830efff0
- 2021 Mercedes-Benz GLB. Price: £16,800. Mileage: 87,258 miles. Dealer: Evans Halshaw Renault Durham in Durham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-a71dbc81f46a
- 2021 Mercedes-Benz GLB. Price: £16,995. Mileage: 90,000 miles. Dealer: Rix Motors in Warrington. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-f31d8a05af77
- 2021 Mercedes-Benz GLB. Price: £17,900. Mileage: 80,000 miles. Dealer: Mylson in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-e3b3f83b859f
The 27 matching cars have covered 19,431 to 101,000 miles, compared with 27,160 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all Mercedes-Benz GLB cars for sale · 2021 Mercedes-Benz GLB price guide
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How to contact the dealer and its opening hours are on this AskCar page.
As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.