2021 Mercedes-Benz GLB

1.3 GLB200 AMG Line Premium Plus DCT FWD Euro 6 (s/s) 5dr 2) 7G (161 bhp)

£20,999

Fair price: within 8% of the typical £19,921 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 PLUS
Version
1.3 GLB200 AMG Line Premium Plus DCT FWD Euro 6 (s/s) 5dr 2) 7G (161 bhp)
Mileage
78,200 miles
Year
2021
Fuel type
Petrol
Body type
SUV
Engine
1.3 L
Gearbox
Automatic
Power
161 bhp
Seats
7
CO2
164 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 Premium Plus is advertised with 78,200 miles, approximately 35,100 above the typical mileage for its age. Our estimated market asking price is £19,921. This car is advertised at £20,999, which is £1,078 above that figure. We use UK dealer asking prices, including 876 Mercedes-Benz GLB listings, and account for the car’s age, mileage and specification. It first appeared in our advert records 150 days ago. Its MOT is recorded as valid until 11 March 2027. The advertised mileage is consistent with the latest MOT reading. It is advertised by Sapphire Motors in Mill Hill.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 28 May 2026, 150 days ago. Advert duration calculated on 25 October 2026.

Recorded asking prices
Date observedAsking price
29 May 2026£20,999
11 July 2026£20,999
23 October 2026£20,999

Price and mileage comparison

Estimated market asking price: £19,921. The asking price is £1,078 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 35,100 miles higher than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 11 March 2027. 78,196 miles at the last test.

7 other cars with the same year, trim, gearbox and fuel are for sale from £20,498 to £25,450.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£20,49879,726 miles
£23,49934,626 miles
£24,97549,368 miles
£24,99033,100 miles
£24,99043,100 miles

These cars have covered 20,863–79,726 miles, compared with 78,200 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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