2023 Mercedes-Benz GLB 1.3 AMG Line Executive

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line Executive
• Version: 1.3 AMG Line Executive DCT FWD Euro 6 (s/s) 5dr 7G (161 bhp)
• Year: 2023
• Mileage: 49,347 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 7 seats
• Engine: 1.3 litres, 161 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Mercedes-Benz GLB AMG Line Executive has covered 49,347 miles, around 15,700 more miles than is typical for its age. The dealer is asking £22,750, which is £237 above the AskCar estimate of £22,513. To work out the AskCar estimate, we analyse UK dealer adverts for 822 Mercedes-Benz GLB cars across different ages and specifications. Since we first spotted the advert 36 days ago, the asking price has dropped by £750. Its advertised mileage matches the government's MOT record. The seller is Sytner Group Mercedes-Benz of Northampton, based in Northampton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £237 (1%) over the AskCar estimate of £22,513.

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 822 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 8 November 2026.

A 2023 Mercedes-Benz GLB with the 1.3 petrol engine is typically advertised at £24,300: the median of the 118 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2023 Mercedes-Benz GLB has been on sale for at least 36 days.

Price history

AskCar first saw this advert on 3 October 2026 at £23,500. Its asking price is now £22,750, £750 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 3 October 2026: £23,500
• 28 October 2026: £22,750

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 24 February 2027.

It has had one MOT, on 6 February 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 33,563 miles, which matches the advertised 49,347 miles.

Advertised mileage is about 15,700 miles higher than the median mileage of a 2023 Mercedes-Benz GLB on AskCar.

Similar cars

47 other 2023 Mercedes-Benz GLB AMG Line Executive 1.3 petrol automatic SUVs are for sale at UK dealers, from £17,500 to £27,495, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, grey. Mileage: 49,765 miles. Price: £24,000, £1,250 more than this car. Dealer: Sytner Group Mercedes-Benz of Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-99edd5ee1c46
• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, white. Mileage: 48,560 miles. Price: £26,495, £3,745 more than this car. Dealer: Agnew Group Mercedes-Benz Of Belfast in Belfast. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-1065a3a917c5
• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, grey. Mileage: 50,200 miles. Price: £22,790, the same price as this car. Dealer: Hanar Cars (UK) in Hoddesdon. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-606121823579