2021 Mercedes-Benz GLB 2.0
Price: £26,599. Fair price: £518 (1%) over the AskCar estimate of £26,081, our expected asking price for this car from its model, age, mileage and specification, drawing on 835 priced Mercedes-Benz GLB adverts on AskCar as of 10 November 2026.
AskCar lists 841 used Mercedes-Benz GLB from 391 UK dealerships, as of 10 November 2026.
Overview
- Make: Mercedes-Benz
- Model: GLB
- Version: 2.0 Auto 4WD Euro 6 5dr (301 bhp)
- Year: 2021
- Mileage: 53,800 miles
- Fuel: Petrol
- Body: SUV, 5 doors, 7 seats
- Engine: 2.0 litres, 301 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 196 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Mercedes-Benz GLB is advertised with 53,800 miles, approximately 6,400 above the typical mileage for its age. The AskCar estimate for this car is £26,081. It is priced at £26,599, which is £518 above that estimate. The AskCar estimate draws on 835 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 3 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Invicta Horsham, based in Horsham. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 10 November 2026.
Invicta Horsham is rated 4.6 out of 5 on Google.
Price
Fair price: £518 (1%) over the AskCar estimate of £26,081.
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 835 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 10 November 2026.
A 2021 Mercedes-Benz GLB with the 2.0 petrol engine is typically advertised at £22,800: the median of the 30 for sale on AskCar, as of 10 November 2026.
Time on sale
AskCar first saw this 2021 Mercedes-Benz GLB advertised 3 days ago. About half of 2021 Mercedes-Benz GLB cars are gone from sale within a month of being advertised: 78 of the 162 first advertised between 11 July 2026 and 7 October 2026.
Price history
AskCar first saw this advert on 7 November 2026 at £26,599. 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 10 November 2026: valid until 23 December 2026.
It has had 3 MOTs. The latest, on 21 December 2025, passed.
Advisories at the latest test: front registration plate deteriorated but not likely to be misread; offside rear inner tyre worn close to legal limit/worn on edge.
Mileage at that test: 44,606 miles, which matches the advertised 53,800 miles.
Advertised mileage is about 6,400 miles higher than the median mileage of a 2021 Mercedes-Benz GLB on AskCar.
Browse all Mercedes-Benz GLB cars for sale · 2021 Mercedes-Benz GLB price guide
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As of 10 November 2026, AskCar lists 591,054 cars and vans from 12,888 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.