2023 Mercedes-Benz GLB 2.0 AMG Line Executive

Version: 2.0 AMG Line Executive Auto Euro 6 5dr

Price: £24,500. Fair price: £456 (1%) over the AskCar estimate of £24,044, our expected asking price for this car from its model, age, mileage and specification, drawing on 877 priced Mercedes-Benz GLB adverts on AskCar as of 31 October 2026.

AskCar lists 885 used Mercedes-Benz GLB from 402 UK dealerships, as of 31 October 2026.

Overview

Make
Mercedes-Benz
Model
GLB
Trim
AMG Line Executive
Version
2.0 AMG Line Executive Auto Euro 6 5dr
Mileage
45,035 miles
Year
2023
Fuel type
Diesel
Body type
SUV
Engine
2.0 L
Gearbox
Automatic
Seats
7
CO2
148 g/km
Colour
Red
Doors
5
Emissions standard
Euro 6

About this car

This 2023 Mercedes-Benz GLB AMG Line Executive is advertised with 45,035 miles, approximately 11,000 above the typical mileage for its age. Priced at £24,500, it is advertised £456 above the AskCar estimate of £24,044. To work out the AskCar estimate, we analyse UK dealer adverts for 877 Mercedes-Benz GLB cars across different ages and specifications. We have tracked this advert today. MOT records show an expiry date of 28 March 2027, and the latest recorded mileage is consistent with the advert. The seller is Sytner Group Mercedes-Benz of Watford, based in Watford.

Stock data as of 31 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 31 October 2026.

Recorded asking prices
Date observedAsking price
31 October 2026£24,500

Price and mileage comparison

Fair price: £456 (1%) over the AskCar estimate of £24,044.

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 877 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 31 October 2026.

Advertised mileage is about 11,000 miles higher than the median mileage of a 2023 Mercedes-Benz GLB on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 28 March 2027. 39,918 miles at the last test.

Other matching cars

7 other 2023 Mercedes-Benz GLB AMG Line Executive automatic diesel cars are for sale at UK dealers from £20,899 to £26,997, as of 31 October 2026.

The 5 cheapest:

The 7 matching cars have covered 22,500 to 48,390 miles, compared with 45,035 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 · 2023 Mercedes-Benz GLB price guide

More like this

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

As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.