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: 20,134 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 7 seats
• Engine: 1.3 litres, 161 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Mercedes-Benz GLB AMG Line Executive is advertised with 20,134 miles, approximately 13,500 below the typical mileage for its age. Its asking price of £26,250 is £505 above the AskCar estimate of £25,745. The AskCar estimate draws on 822 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 9 days ago. Its advertised mileage matches the government's MOT record. The seller is Sytner Group Mercedes-Benz of Milton Keynes, based in Milton Keynes. 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: £505 (1%) over the AskCar estimate of £25,745.

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 9 days.

Price history

AskCar first saw this advert on 30 October 2026 at £26,250. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 23 November 2027.

It has had one MOT, on 27 October 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 20,075 miles, which matches the advertised 20,134 miles.

Advertised mileage is about 13,500 miles lower 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, red. Mileage: 20,132 miles. Price: £24,119, £2,131 less than this car. Dealer: Lookers Mercedes-Benz of Stafford in Stafford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-07f286e4120e
• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, black. Mileage: 20,138 miles. Price: £26,295, the same price as this car. Dealer: Group 1 Automotive Mercedes-Benz Of Liverpool in Liverpool. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-d0b994259a4e
• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, white. Mileage: 19,248 miles. Price: £24,299, £1,951 less than this car. Dealer: cinch in Maidstone. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-b78d5045e88e

• The nearest: 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, grey, under a mile from this car. Mileage: 49,765 miles. Price: £24,000, £2,250 less 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