2021 Mercedes-Benz GLB

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

29,359 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

Red

Doors

5

Driven wheels

Front Wheel Drive

Gearbox version

DCT

Engine badge

GLB200

Emissions standard

Euro 6

About this car

With 29,359 miles on the clock, this 2021 Mercedes-Benz GLB AMG Line has done roughly 13,700 fewer miles than a typical 2021 Mercedes-Benz GLB. Our estimated market asking price is £21,986. This car is advertised at £20,995, which is £991 below that figure. The estimate uses 876 UK dealer adverts for the Mercedes-Benz GLB, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 123 days ago. Its asking price has since fallen by £3,000. The time on sale and price change could be useful context when negotiating. MOT records show an expiry date of 14 July 2027, and the latest recorded mileage is consistent with the advert. The seller is Sinclair Volkswagen (Swansea), based in Swansea.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £21,986. The asking price is £991 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 13,700 miles lower than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.