2021 Mercedes-Benz GLB

1.9 220d AMG Line Auto 4WD Euro 6 5dr 8G-Tronic (187 bhp)

£14,995

Fair price: within 8% of the typical £15,144 for this model, age and mileage, drawing on 876 adverts of this make and model.

Overview

Make: Mercedes-Benz
Model: GLB
Trim: AMG LINE
Version: 1.9 220d AMG Line Auto 4WD Euro 6 5dr 8G-Tronic (187 bhp)
Mileage: 127,885 miles
Year: 2021
Fuel type: Diesel
Body type: SUV
Engine: 1.9 L
Gearbox: Automatic
Power: 187 bhp
Seats: 7
CO2: 155 g/km
Colour: White
Doors: 5
Driven wheels: Four Wheel Drive
Engine badge: GLB220d
Emissions standard: Euro 6

About this car

This 2021 Mercedes-Benz GLB AMG Line has covered 127,885 miles, around 84,800 more than typical for its age. The dealer is asking £14,995, which is £149 below our market estimate of £15,144. To estimate its market asking price, we analyse UK dealer adverts for 876 Mercedes-Benz GLB cars across different ages and specifications. We have tracked this advert for 33 days. Its recorded MOT is valid until 6 May 2027, and its advertised mileage is consistent with the latest MOT reading. It is advertised by Throston Motors in Hartlepool.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 22 September 2026, 33 days ago. Advert duration calculated on 25 October 2026.

Recorded asking prices
Date observed	Asking price
22 September 2026	£14,995
23 October 2026	£14,995

Price and mileage comparison

Estimated market asking price: £15,144. The asking price is £149 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 84,800 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 May 2027. 121,550 miles at the last test.

3 other cars with the same year, trim, gearbox and fuel are for sale from £17,700 to £21,295.

Other matching cars
Asking price	Mileage
£17,700	76,940 miles
£20,949	53,873 miles
£21,295	76,500 miles

These cars have covered 53,873–76,940 miles, compared with 127,885 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

Vehicle photos

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