2021 Mercedes-Benz GLB

2.0 AMG Line Premium Auto Euro 6 5dr

£22,699

Fair price: within 8% of the typical £22,279 for this model, age and mileage, drawing on 876 adverts of this make and model.

Overview

Make
Mercedes-Benz
Model
GLB
Trim
AMG LINE PREMIUM
Version
2.0 AMG Line Premium Auto Euro 6 5dr
Mileage
55,800 miles
Year
2021
Fuel type
Diesel
Body type
SUV
Engine
2.0 L
Gearbox
Automatic
CO2
155 g/km
Colour
White
Doors
5
Emissions standard
Euro 6

About this car

This 2021 Mercedes-Benz GLB AMG Line Premium is advertised with 55,800 miles, approximately 12,700 above the typical mileage for its age. Its asking price of £22,699 is £420 above our estimate of £22,279. We use UK dealer asking prices, including 876 Mercedes-Benz GLB listings, and account for the car’s age, mileage and specification. This car was first seen in our listings data 9 days ago. Our latest MOT record expired on 22 October 2026. Check the current position with the dealer. Our comparison with the latest MOT reading has not flagged a mileage discrepancy. The seller is Lookers Mercedes-Benz of Maidstone, based in Maidstone.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 17 October 2026, 9 days ago. Advert duration calculated on 26 October 2026.

Recorded asking prices
Date observedAsking price
17 October 2026£22,499
18 October 2026£22,699
23 October 2026£22,699

Price and mileage comparison

Estimated market asking price: £22,279. The asking price is £420 above this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 876 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 12,700 miles higher than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

The recorded MOT has expired; ask the dealer for an up-to-date MOT.

MOT

MOT valid until 22 October 2026. 44,457 miles at the last test.

18 other cars with the same year, trim, gearbox and fuel are for sale from £20,464 to £24,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£20,46464,540 miles
£20,46464,540 miles
£20,79063,650 miles
£20,97571,128 miles
£21,20068,280 miles

These cars have covered 28,606–71,128 miles, compared with 55,800 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

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

More like this

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos

AskCar lists 589,789 cars from 13,079 UK dealer locations, read and updated daily from dealer websites. More than any other UK site. No dealer pays to be listed.