2020 Mercedes-Benz GLB

2.0 AMG Line Premium Auto 4WD Euro 6 5dr (187 bhp)

£20,495

Fair price: within 8% of the typical £21,368 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 AMG Line Premium Auto 4WD Euro 6 5dr (187 bhp)
Mileage
57,000 miles
Year
2020
Fuel type
Diesel
Body type
SUV
Engine
2.0 L
Gearbox
Automatic
Power
187 bhp
Seats
5
CO2
161 g/km
Colour
Grey
Doors
5
Driven wheels
Four Wheel Drive
Engine badge
GLB220d
Emissions standard
Euro 6

About this car

This 2020 Mercedes-Benz GLB AMG Line Premium has covered 57,000 miles. The dealer is asking £20,495, which is £873 below our market estimate of £21,368. To estimate its market asking price, we analyse UK dealer adverts for 876 Mercedes-Benz GLB cars across different ages and specifications. Since we first spotted the advert 7 days ago, the asking price has dropped by £200. The advertised mileage is lower than the latest MOT reading of 57,869 miles. Ask the dealer to explain. Its recorded MOT is valid until 12 October 2027. The seller is Mercedes-Benz South West Mercedes Benz Of Exeter, based in Exeter.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 18 October 2026, 7 days ago. Advert duration calculated on 25 October 2026. Net asking-price reduction: £200 from the first recorded £20,695. 1 price reduction recorded, the latest observed on 22 October 2026.

Recorded asking prices
Date observedAsking price
18 October 2026£20,695
22 October 2026£20,495
23 October 2026£20,495

Price and mileage comparison

Estimated market asking price: £21,368. The asking price is £873 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 5,700 miles higher than typical for a 2020 Mercedes-Benz GLB.

Mileage concern: the advertised mileage is below the last MOT reading; ask the dealer to explain.

MOT

MOT valid until 12 October 2027. 57,869 miles at the last test.

37 other cars with the same year, trim, gearbox and fuel are for sale from £16,195 to £27,200.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£16,195107,698 miles
£17,00095,000 miles
£17,031104,000 miles
£17,79981,078 miles
£18,57276,883 miles

These cars have covered 1,950–107,698 miles, compared with 57,000 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 · 2020 Mercedes-Benz GLB price guide

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Vehicle photos

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