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: 15,059 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 7 seats
• Engine: 1.3 litres, 161 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 15,059 miles, this 2023 Mercedes-Benz GLB AMG Line Executive has covered about 19,200 fewer miles than other 2023 Mercedes-Benz GLB cars. The dealer is asking £25,473, which is £509 below the AskCar estimate of £25,982. To work out the AskCar estimate, we analyse UK dealer adverts for 835 Mercedes-Benz GLB cars across different ages and specifications. The asking price is now £851 lower than when we first recorded the advert 27 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Vertu Mercedes Reading, based in Reading. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £509 (1%) under the AskCar estimate of £25,982.

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 835 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 10 November 2026.

A 2023 Mercedes-Benz GLB with the 1.3 petrol engine is typically advertised at £24,000: the median of the 117 for sale on AskCar, as of 10 November 2026.

Time on sale

This 2023 Mercedes-Benz GLB has been on sale for at least 27 days.

Price history

AskCar first saw this advert on 14 October 2026 at £26,324. Its asking price is now £25,473, £851 less. The latest price cut was seen on 9 November 2026.

Price changes recorded:

• 14 October 2026: £26,324
• 20 October 2026: £26,117
• 22 October 2026: £25,982
• 23 October 2026: £25,973
• 9 November 2026: £25,473

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 27 September 2027.

It has had 2 MOTs. The latest, on 28 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 15,079 miles, which matches the advertised 15,059 miles.

Advertised mileage is about 19,200 miles lower than the median mileage of a 2023 Mercedes-Benz GLB on AskCar.

Similar cars

48 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 10 November 2026.

The 3 closest to this car in mileage:

• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, white. Mileage: 16,495 miles. Price: £25,220, £253 less than this car. Dealer: Evans Halshaw Vauxhall Newport in Newport. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-da4513dcf8ff
• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, red. Mileage: 13,304 miles. Price: £24,599, £874 less than this car. Dealer: Lookers Mercedes-Benz of Stoke in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-06fae87aa55d
• 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, grey. Mileage: 17,258 miles. Price: £24,795, £678 less than this car. Dealer: John Clark Motor Group in Peterhead. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-8d80e40efaf0

• The nearest: 2023 Mercedes-Benz GLB AMG Line Executive, 1.3 petrol SUV, white, 26 miles from this car. Mileage: 35,021 miles. Price: £23,384, £2,089 less than this car. Dealer: Vertu Mercedes Aylesbury in Aylesbury. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-d23cf600ad4e