2021 Mercedes-Benz GLB

1.3 AMG Line Auto FWD Euro 6 5dr (160 bhp)

£20,990

Fair price: within 8% of the typical £21,988 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 AMG Line Auto FWD Euro 6 5dr (160 bhp)
Mileage
29,302 miles
Year
2021
Fuel type
Petrol
Body type
SUV
Engine
1.3 L
Gearbox
Automatic
Power
160 bhp
Seats
7
CO2
163 g/km
Colour
Silver
Doors
5
Driven wheels
Front Wheel Drive
Engine badge
GLB200
Emissions standard
Euro 6

About this car

This 2021 Mercedes-Benz GLB AMG Line is advertised with 29,302 miles, approximately 13,800 below the typical mileage for its age. The dealer is asking £20,990, which is £998 below our market estimate of £21,988. Our estimate draws on 876 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 27 days. Its recorded MOT is valid until 23 June 2027, and its advertised mileage is consistent with the latest MOT reading. It is for sale at Motor 4 U in Wadhurst.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 29 September 2026, 27 days ago. Advert duration calculated on 26 October 2026.

Recorded asking prices
Date observedAsking price
29 September 2026£20,990
23 October 2026£20,990

Price and mileage comparison

Estimated market asking price: £21,988. The asking price is £998 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 13,800 miles lower than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 23 June 2027. 27,343 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 29,302 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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