2021 Mercedes-Benz GLB 1.3 GLB200 AMG Line
Version: 1.3 GLB200 AMG Line DCT FWD Euro 6 (s/s) 5dr 7G (161 bhp)
Price: £19,720. Fair price: £1,060 (5%) under the AskCar estimate of £20,780, our expected asking price for this car from its model, age, mileage and specification, drawing on 862 priced Mercedes-Benz GLB adverts on AskCar as of 1 November 2026.
AskCar lists 869 used Mercedes-Benz GLB from 392 UK dealerships, as of 1 November 2026.
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)
- Mileage
- 45,916 miles
- Year
- 2021
- Fuel type
- Petrol
- Body type
- SUV
- Engine
- 1.3 L
- Gearbox
- Automatic
- Power
- 161 bhp
- Seats
- 7
- CO2
- 163 g/km
- Colour
- Black
- Doors
- 5
- Driven wheels
- Front Wheel Drive
- Gearbox version
- DCT
- Engine badge
- GLB200
- Emissions standard
- Euro 6
About this car
This 2021 Mercedes-Benz GLB AMG Line has covered 45,916 miles. The AskCar estimate for this car is £20,780. It is priced at £19,720, which is £1,060 below that estimate. The AskCar estimate draws on 862 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 2 days ago. MOT records show an expiry date of 5 August 2027, and the latest recorded mileage is consistent with the advert. The seller is Hedin Automotive Mercedes-Benz And Smart Of Dartford, based in Dartford.
Stock data as of 1 November 2026.
Price history
AskCar first saw this advert on 30 October 2026, 2 days ago.
| Date observed | Asking price |
|---|---|
| 30 October 2026 | £19,720 |
| 1 November 2026 | £19,720 |
Price and mileage comparison
Fair price: £1,060 (5%) under the AskCar estimate of £20,780.
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 862 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 1 November 2026.
Advertised mileage is about 1,400 miles higher 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 5 August 2027. 44,411 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 £22,595, as of 1 November 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 45,916 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 1 November 2026, AskCar lists 578,994 cars and vans from 12,654 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.