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: 23,659 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

With 23,659 miles on the clock, this 2023 Mercedes-Benz GLB AMG Line Executive has done roughly 10,000 fewer miles than a typical 2023 Mercedes-Benz GLB. The dealer is asking £25,000, which is £397 below the AskCar estimate of £25,397. To work out the AskCar estimate, we analyse UK dealer adverts for 822 Mercedes-Benz GLB cars across different ages and specifications. The asking price is now £2,500 lower than when we first recorded the advert 46 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Group Mercedes-Benz of Bristol, based in Bristol. 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: £397 (1%) under the AskCar estimate of £25,397.

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 46 days.

Price history

AskCar first saw this advert on 23 September 2026 at £27,500. Its asking price is now £25,000, £2,500 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 23 September 2026: £27,500
• 3 October 2026: £26,500
• 7 October 2026: £25,750
• 15 October 2026: £25,500
• 5 November 2026: £25,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 18 September 2027.

It has had one MOT, on 4 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 23,539 miles, which matches the advertised 23,659 miles.

Advertised mileage is about 10,000 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, grey. Mileage: 23,517 miles. Price: £24,643, £357 less than this car. Dealer: Sparshatts Of Havant in Havant. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-ac69333852c7
• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, blue. Mileage: 25,616 miles. Price: £23,999, £1,001 less than this car. Dealer: Hpl Barnsley in Barnsley. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-4ed4bbb76fa7
• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, white. Mileage: 25,866 miles. Price: £25,523, £523 more than this car. Dealer: LSH Auto Mercedes-Benz of Tamworth in Tamworth. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-f72d3ece869f

• The nearest: 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, white, 2 miles from this car. Mileage: 61,738 miles. Price: £20,400, £4,600 less than this car. Dealer: Sytner Select Bristol in Bristol. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-785cc2a7b91b