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: 61,738 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 7 seats
• Engine: 1.3 litres, 161 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: White
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 61,738 miles, this 2023 Mercedes-Benz GLB AMG Line Executive has covered about 28,100 more miles than other 2023 Mercedes-Benz GLB cars. Its asking price of £20,400 is £671 below the AskCar estimate of £21,071. To work out the AskCar estimate, we analyse UK dealer adverts for 841 Mercedes-Benz GLB cars across different ages and specifications. Since we first spotted the advert 70 days ago, the asking price has dropped by £1,600. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Select Bristol, based in Bristol. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £671 (3%) under the AskCar estimate of £21,071.

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 841 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 7 November 2026.

A 2023 Mercedes-Benz GLB with the 1.3 petrol engine is typically advertised at £24,500: the median of the 121 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2023 Mercedes-Benz GLB has been on sale for at least 70 days.

Price history

AskCar first saw this advert on 29 August 2026 at £22,000. Its asking price is now £20,400, £1,600 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 29 August 2026: £22,000
• 5 September 2026: £21,600
• 19 September 2026: £21,400
• 3 October 2026: £21,200
• 16 October 2026: £21,000
• 24 October 2026: £20,800
• 7 November 2026: £20,400

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 24 August 2027.

It has had 2 MOTs. The latest, on 25 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 61,503 miles, which matches the advertised 61,738 miles.

Advertised mileage is about 28,100 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 7 November 2026.

The 3 closest to this car in mileage:

• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, white. Mileage: 61,530 miles. Price: £21,559, £1,159 more than this car. Dealer: Lookers Mercedes-Benz of Ashford in Ashford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-3ae842440646
• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, red. Mileage: 62,000 miles. Price: £21,495, £1,095 more than this car. Dealer: The Garage On The Green in Hastings. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-a1a5fbfe94f9
• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, white. Mileage: 62,390 miles. Price: £20,814, £414 more than this car. Dealer: Lookers Mercedes-Benz of Stourbridge in Stourbridge. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-953a82748fc2

• The nearest: 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, white, under a mile from this car. Mileage: 71,001 miles. Price: £19,800, £600 less than this car. Dealer: Sytner Select Bristol in Bristol. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-b63c458a2706