2021 Mercedes-Benz GLB

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

£19,995

Fair price: within 8% of the typical £21,090 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
1.3 GLB200 AMG Line Premium DCT FWD Euro 6 (s/s) 5dr 2) 7G (161 bhp)
Mileage
51,400 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

With 51,400 miles on the clock, this 2021 Mercedes-Benz GLB AMG Line Premium has done roughly 8,300 more miles than a typical 2021 Mercedes-Benz GLB. Its asking price of £19,995 is £1,095 below our estimate of £21,090. We use UK dealer asking prices, including 876 Mercedes-Benz GLB listings, and account for the car’s age, mileage and specification. The asking price is now £1,500 lower than when we first recorded the advert 45 days ago. Its MOT is recorded as valid until 19 November 2026. The advertised mileage is consistent with the latest MOT reading. It is advertised by CC Cars in Dukinfield.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 10 September 2026, 45 days ago. Advert duration calculated on 25 October 2026. Net asking-price reduction: £1,500 from the first recorded £21,495. 4 price reductions recorded, the latest observed on 30 September 2026.

Recorded asking prices
Date observedAsking price
10 September 2026£21,495
11 September 2026£20,995
15 September 2026£20,795
29 September 2026£20,495
30 September 2026£19,995
23 October 2026£19,995

Price and mileage comparison

Estimated market asking price: £21,090. The asking price is £1,095 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 8,300 miles higher than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 19 November 2026. 46,197 miles at the last test.

18 other cars with the same year, trim, gearbox and fuel are for sale from £18,699 to £24,290.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£18,69971,049 miles
£18,75092,677 miles
£19,99510,000 miles
£20,49560,500 miles
£20,49953,697 miles

These cars have covered 10,000–92,677 miles, compared with 51,400 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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