2021 Mercedes-Benz GLB

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

£20,498

Above the going rate: £1,585 over the typical £18,913 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 PLUS
Version
1.3 AMG Line Premium Plus Auto FWD Euro 6 5dr (161 bhp)
Mileage
79,726 miles
Year
2021
Fuel type
Petrol
Body type
SUV
Engine
1.3 L
Gearbox
Automatic
Power
161 bhp
Seats
7
CO2
164 g/km
Colour
White
Doors
5
Driven wheels
Front Wheel Drive
Engine badge
GLB200
Emissions standard
Euro 6

About this car

This 2021 Mercedes-Benz GLB AMG Line Premium Plus has covered 79,726 miles, around 36,600 more than typical for its age. At £20,498, it is advertised £1,585 above our estimated market asking price of £18,913. The estimate uses 876 UK dealer adverts for the Mercedes-Benz GLB, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 58 days ago, the asking price has dropped by £500. MOT records show an expiry date of 27 August 2027, and the latest recorded mileage is consistent with the advert. The seller is Arnold Clark Armadale Citroen Leapmotor Vanstore, based in Armadale.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 29 August 2026, 58 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £500 from the first recorded £20,998. 1 price reduction recorded, the latest observed on 23 September 2026.

Recorded asking prices
Date observedAsking price
29 August 2026£20,998
23 September 2026£20,498
23 October 2026£20,498

Price and mileage comparison

Estimated market asking price: £18,913. The asking price is £1,585 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 36,600 miles higher than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 27 August 2027. 79,787 miles at the last test.

7 other cars with the same year, trim, gearbox and fuel are for sale from £20,999 to £25,450.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£20,99978,200 miles
£23,49934,626 miles
£24,97549,368 miles
£24,99033,100 miles
£24,99043,100 miles

These cars have covered 20,863–78,200 miles, compared with 79,726 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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