2021 Mercedes-Benz GLB

1.3 AMG Line Auto FWD Euro 6 5dr (161 bhp)

£20,669

Fair price: within 8% of the typical £20,641 for this model, age and mileage, drawing on 878 adverts of this make and model.

Overview

Make
Mercedes-Benz
Model
GLB
Trim
AMG LINE
Version
1.3 AMG Line Auto FWD Euro 6 5dr (161 bhp)
Mileage
47,928 miles
Year
2021
Body type
SUV
Engine
1.3 L
Gearbox
Automatic
Power
161 bhp
Seats
7
CO2
163 g/km
Colour
Red
Doors
5
Driven wheels
Front Wheel Drive
Emissions standard
Euro 6

About this car

This 2021 Mercedes-Benz GLB AMG Line has covered 47,928 miles, around 5,200 more than typical for its age. Its asking price of £20,669 is £28 above our estimate of £20,641. To estimate its market asking price, we analyse UK dealer adverts for 878 Mercedes-Benz GLB cars across different ages and specifications. We first saw this car advertised 38 days ago. Its asking price has since fallen by £230. MOT records show an expiry date of 6 July 2027, and the latest recorded mileage is consistent with the advert. The seller is Lookers Mercedes-Benz of Wolverhampton, based in Wolverhampton.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 15 September 2026, 38 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £230 from the first recorded £20,899. 5 price reductions recorded, the latest observed on 16 October 2026.

Recorded asking prices
Date observedAsking price
15 September 2026£20,899
20 September 2026£21,599
22 September 2026£21,459
30 September 2026£21,349
6 October 2026£21,029
13 October 2026£20,899
16 October 2026£20,669
22 October 2026£20,669

Price and mileage comparison

Estimated market asking price: £20,641. The asking price is £28 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 878 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 5,200 miles higher than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 6 July 2027. 46,449 miles at the last test.

2021 Mercedes-Benz GLB price guide

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

Vehicle photos