2021 Mercedes-Benz GLB

2.0 GLB220d AMG Line Premium DCT 4WD Euro 6 (s/s) 5dr 8G (187 bhp)

£20,975

Fair price: within 8% of the typical £20,378 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
2.0 GLB220d AMG Line Premium DCT 4WD Euro 6 (s/s) 5dr 8G (187 bhp)
Mileage
71,128 miles
Year
2021
Fuel type
Diesel
Body type
SUV
Engine
2.0 L
Gearbox
Automatic
Power
187 bhp
Seats
7
CO2
155 g/km
Colour
White
Doors
5
Driven wheels
Four Wheel Drive
Gearbox version
DCT
Engine badge
GLB220d
Emissions standard
Euro 6

About this car

At 71,128 miles, this 2021 Mercedes-Benz GLB AMG Line Premium has covered about 28,000 more miles than other 2021 Mercedes-Benz GLB cars. The dealer is asking £20,975, which is £597 above our market estimate of £20,378. Our estimate draws on 876 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 33 days ago, the asking price has dropped by £3,000. Its MOT is recorded as valid until 5 May 2027. The advertised mileage is consistent with the latest MOT reading. It is advertised by The Car Co in Bury.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 22 September 2026, 33 days ago. Advert duration calculated on 25 October 2026. Net asking-price reduction: £3,000 from the first recorded £23,975. 4 price reductions recorded, the latest observed on 12 October 2026.

Recorded asking prices
Date observedAsking price
22 September 2026£23,975
23 September 2026£21,975
26 September 2026£21,675
30 September 2026£21,475
12 October 2026£20,975
23 October 2026£20,975

Price and mileage comparison

Estimated market asking price: £20,378. The asking price is £597 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 28,000 miles higher than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 5 May 2027. 66,886 miles at the last test.

18 other cars with the same year, trim, gearbox and fuel are for sale from £20,464 to £24,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£20,46464,540 miles
£20,46464,540 miles
£20,79063,650 miles
£21,20068,280 miles
£21,30048,203 miles

These cars have covered 28,606–68,280 miles, compared with 71,128 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

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos

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