2020 Mercedes-Benz GLB 2.0
Price: £21,000. Fair price: £17 (under 1%) over the AskCar estimate of £20,983, our expected asking price for this car from its model, age, mileage and specification, drawing on 822 priced Mercedes-Benz GLB adverts on AskCar as of 8 November 2026.
AskCar lists 853 used Mercedes-Benz GLB from 391 UK dealerships, as of 8 November 2026.
Overview
- Make: Mercedes-Benz
- Model: GLB
- Version: 2.0 Auto Euro 6 5dr
- Year: 2020
- Mileage: 49,858 miles
- Fuel: Diesel
- Body: SUV, 5 doors
- Engine: 2.0 litres
- Gearbox: Automatic
- Colour: White
- CO2: 161 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
The advertised mileage for this 2020 Mercedes-Benz GLB is 49,858 miles. Its asking price of £21,000 is £17 above the AskCar estimate of £20,983. The AskCar estimate draws on 822 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 11 days. The government's MOT record matches its advertised mileage. You can find this car at Sytner Group Mercedes-Benz of Teesside in Stockton-on-Tees. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 8 November 2026.
Price
Fair price: £17 (under 1%) over the AskCar estimate of £20,983.
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 822 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 8 November 2026.
A 2020 Mercedes-Benz GLB with the 2.0 diesel engine is typically advertised at £21,000: the median of the 42 for sale on AskCar, as of 8 November 2026.
Time on sale
This 2020 Mercedes-Benz GLB has been on sale for at least 11 days.
Price history
AskCar first saw this advert on 28 October 2026 at £21,000. 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 8 November 2026: valid until 22 December 2026.
It has had 5 MOTs. The latest, on 13 December 2025, passed.
Advisories at the latest test: engine & body undertrays installed; offside front nail in tyre.
Mileage at that test: 42,754 miles, which matches the advertised 49,858 miles.
Advertised mileage is about 1,600 miles lower than the median mileage of a 2020 Mercedes-Benz GLB on AskCar.
Browse all Mercedes-Benz GLB cars for sale · 2020 Mercedes-Benz GLB price guide
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Photos
27 photos of this car are on its AskCar page.
As of 8 November 2026, AskCar lists 595,762 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.