2021 Mercedes-Benz GLB

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

£19,890

Fair price: within 8% of the typical £21,379 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
35,216 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
Grey
Doors
5
Driven wheels
Front Wheel Drive
Gearbox version
DCT
Engine badge
GLB200
Emissions standard
Euro 6

About this car

This 2021 Mercedes-Benz GLB AMG Line has covered 35,216 miles, around 7,900 fewer than typical for its age. Its asking price of £19,890 is £1,489 below our estimate of £21,379. The estimate uses 876 UK dealer adverts for the Mercedes-Benz GLB, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 68 days ago, and its asking price has since fallen by £4,720. It may give you a starting point for a conversation about price. MOT records show an expiry date of 15 May 2027, and the latest recorded mileage is consistent with the advert. The seller is Big Motoring World Blue Bell Hill, based in Chatham.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 19 August 2026, 68 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £4,720 from the first recorded £24,610. 8 price reductions recorded, the latest observed on 21 October 2026.

Recorded asking prices
Date observedAsking price
19 August 2026£24,610
20 August 2026£24,600
21 August 2026£21,480
26 September 2026£20,960
29 September 2026£20,720
30 September 2026£20,670
1 October 2026£20,680
3 October 2026£20,650
17 October 2026£20,140
21 October 2026£19,890
23 October 2026£19,890

Price and mileage comparison

Estimated market asking price: £21,379. The asking price is £1,489 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 7,900 miles lower than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 15 May 2027. 34,221 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 35,216 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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