2021 Mercedes-Benz GLB

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

£22,600

Fair price: within 8% of the typical £21,967 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
1.3 AMG Line Premium Auto FWD Euro 6 5dr (161 bhp)
Mileage
38,116 miles
Year
2021
Fuel type
Petrol
Body type
SUV
Engine
1.3 L
Gearbox
Automatic
Power
161 bhp
Seats
7
CO2
163 g/km
Colour
Blue
Doors
5
Driven wheels
Front Wheel Drive
Engine badge
GLB200
Emissions standard
Euro 6

About this car

With 38,116 miles on the clock, this 2021 Mercedes-Benz GLB AMG Line Premium has done roughly 5,000 fewer miles than a typical 2021 Mercedes-Benz GLB. Our estimated market asking price is £21,967. This car is advertised at £22,600, which is £633 above that figure. We use UK dealer asking prices, including 876 Mercedes-Benz GLB listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 31 days ago, the asking price has dropped by £1,100. MOT records show an expiry date of 21 May 2027, and the latest recorded mileage is consistent with the advert. The seller is Marshall Mercedes-Benz Of Bolton, based in Bolton.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 25 September 2026, 31 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £1,100 from the first recorded £23,700. 3 price reductions recorded, the latest observed on 23 October 2026.

Recorded asking prices
Date observedAsking price
25 September 2026£23,700
9 October 2026£23,300
16 October 2026£22,800
23 October 2026£22,600

Price and mileage comparison

Estimated market asking price: £21,967. The asking price is £633 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 5,000 miles lower than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 21 May 2027. 33,806 miles at the last test.

18 other cars with the same year, trim, gearbox and fuel are for sale from £18,699 to £24,290.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£18,69971,049 miles
£18,75092,677 miles
£19,99551,400 miles
£19,99510,000 miles
£20,49560,500 miles

These cars have covered 10,000–92,677 miles, compared with 38,116 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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