2020 Mercedes-Benz GLB GLB200d AMG Line

Version: AMG Line Auto FWD Euro 6 5dr (147 bhp)

Price: £23,190. Fair price: £390 (1%) over the AskCar estimate of £22,800, our expected asking price for this car from its model, age, mileage and specification, drawing on 851 priced Mercedes-Benz GLB adverts on AskCar as of 29 October 2026.

AskCar lists 859 used Mercedes-Benz GLB from 402 UK dealerships, as of 29 October 2026.

Overview

Make
Mercedes-Benz
Model
GLB
Trim
AMG Line
Version
AMG Line Auto FWD Euro 6 5dr (147 bhp)
Mileage
42,261 miles
Year
2020
Fuel type
Diesel
Body type
SUV
Gearbox
Automatic
Power
147 bhp
Seats
7
CO2
148 g/km
Colour
Black
Doors
5
Driven wheels
Front Wheel Drive
Engine badge
GLB200d
Emissions standard
Euro 6

About this car

With 42,261 miles on the clock, this 2020 Mercedes-Benz GLB AMG Line has done roughly 9,200 fewer miles than a typical 2020 Mercedes-Benz GLB. Priced at £23,190, it is advertised £390 above the AskCar estimate of £22,800. The AskCar estimate uses UK dealer asking prices, including 851 Mercedes-Benz GLB adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale today. Its recorded MOT is valid until 15 February 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Stratstone Mercedes-Benz of Glasgow, based in Glasgow.

Stock data as of 29 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 29 October 2026.

Recorded asking prices
Date observedAsking price
29 October 2026£23,190

Price and mileage comparison

Fair price: £390 (1%) over the AskCar estimate of £22,800.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 851 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 29 October 2026.

Advertised mileage is about 9,200 miles lower than the median mileage of a 2020 Mercedes-Benz GLB on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 15 February 2027. 38,197 miles at the last test.

Other matching cars

4 other 2020 Mercedes-Benz GLB AMG Line automatic diesel cars are for sale at UK dealers from £18,699 to £25,899, as of 29 October 2026.

The 4 matching cars have covered 28,299 to 62,000 miles, compared with 42,261 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

Browse all Mercedes-Benz GLB cars for sale · 2020 Mercedes-Benz GLB price guide

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Photos

1 photo of this car is on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.