2021 Mercedes-Benz GLB

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

£20,990

Fair price: within 8% of the typical £21,968 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
29,550 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 29,550 miles, around 13,600 fewer than typical for its age. The dealer is asking £20,990, which is £978 below our market estimate of £21,968. Our estimate draws on 876 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 8 days ago. The recorded MOT expired on 24 November 2025, so ask the dealer whether it has been renewed. Its advertised mileage is consistent with the latest recorded MOT reading. It is advertised by Motor Gurus in Sheffield.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 17 October 2026, 8 days ago. Advert duration calculated on 25 October 2026.

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

Price and mileage comparison

Estimated market asking price: £21,968. The asking price is £978 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 13,600 miles lower than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

The recorded MOT has expired; ask the dealer for an up-to-date MOT.

MOT

MOT not valid until 24 November 2025. 23,571 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 29,550 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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