2021 Mercedes-Benz GLB

1.3 GLB200 AMG Line DCT FWD Euro 6 (s/s) 5dr 7G (161 bhp)

£20,495

Fair price: within 8% of the typical £20,899 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
1.3 GLB200 AMG Line DCT FWD Euro 6 (s/s) 5dr 7G (161 bhp)
Mileage
39,900 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
White
Doors
5
Driven wheels
Front Wheel Drive
Gearbox version
DCT
Engine badge
GLB200
Emissions standard
Euro 6

About this car

At 39,900 miles, this 2021 Mercedes-Benz GLB AMG Line has covered about 3,200 fewer miles than other 2021 Mercedes-Benz GLB cars. Our estimated market asking price is £20,899. This car is advertised at £20,495, which is £404 below that figure. Our estimate draws on 876 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 54 days ago. Its asking price has since fallen by £1,000. The latest MOT record shows an expiry date of 5 March 2027, with the advertised mileage consistent with the recorded reading. It is advertised by Georgesons Car Sales in Liverpool.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 2 September 2026, 54 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £1,000 from the first recorded £21,495. 1 price reduction recorded, the latest observed on 17 October 2026.

Recorded asking prices
Date observedAsking price
2 September 2026£21,495
17 October 2026£20,495
23 October 2026£20,495

Price and mileage comparison

Estimated market asking price: £20,899. The asking price is £404 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 3,200 miles lower than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 5 March 2027. 35,275 miles at the last test.

27 other cars with the same year, trim, gearbox and fuel are for sale from £15,795 to £23,000.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£15,795101,000 miles
£15,99095,412 miles
£16,80087,258 miles
£18,19971,750 miles
£18,49565,560 miles

These cars have covered 19,431–101,000 miles, compared with 39,900 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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