2021 Mercedes-Benz GLB

2.0 AMG Line Premium Auto Euro 6 5dr

£20,790

Fair price: within 8% of the typical £21,314 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
63,650 miles
Year
2021
Fuel type
Diesel
Body type
SUV
Engine
2.0 L
Gearbox
Automatic
CO2
156 g/km
Colour
White
Doors
5
Emissions standard
Euro 6

About this car

This 2021 Mercedes-Benz GLB AMG Line Premium is advertised with 63,650 miles, approximately 20,600 above the typical mileage for its age. The dealer is asking £20,790, which is £524 below our market estimate of £21,314. To estimate its market asking price, we analyse UK dealer adverts for 876 Mercedes-Benz GLB cars across different ages and specifications. We first recorded this advert 90 days ago, and its asking price has since fallen by £2,176. Our records show an MOT expiry date of 31 March 2026, which has passed. Ask the dealer for an update. Our comparison with the latest MOT reading has not flagged a mileage discrepancy. The seller is Stratstone Mercedes-Benz of Wakefield, based in Wakefield.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 27 July 2026, 90 days ago. Advert duration calculated on 25 October 2026. Net asking-price reduction: £2,176 from the first recorded £22,966. 8 price reductions recorded, the latest observed on 13 October 2026.

Recorded asking prices
Date observedAsking price
28 July 2026£22,966
4 August 2026£22,950
16 August 2026£22,890
27 August 2026£22,850
10 September 2026£22,790
22 September 2026£22,680
29 September 2026£21,090
10 October 2026£20,990
13 October 2026£20,790
23 October 2026£20,790

Price and mileage comparison

Estimated market asking price: £21,314. The asking price is £524 below 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 20,600 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 not valid until 31 March 2026. 50,743 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
£20,97571,128 miles
£21,20068,280 miles
£21,30048,203 miles

These cars have covered 28,606–71,128 miles, compared with 63,650 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

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