2023 Mercedes-Benz GLB 2.0 GLB200d AMG Line Executive

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line Executive
• Version: 2.0 GLB200d AMG Line Executive DCT FWD Euro 6 (s/s) 5dr 8G (148 bhp)
• Year: 2023
• Mileage: 34,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 7 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: White
• CO2: 148 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Mercedes-Benz GLB AMG Line Executive is advertised with 34,000 miles on the clock. Priced at £22,990, it is advertised £1,477 below the AskCar estimate of £24,467. The AskCar estimate uses 822 UK dealer adverts for the Mercedes-Benz GLB, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 23 days ago, the asking price has dropped by £509. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at K Motors London in New Malden. 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: £1,477 (6%) under the AskCar estimate of £24,467.

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 2.0 diesel engine is typically advertised at £25,800: the median of the 20 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2023 Mercedes-Benz GLB has been on sale for at least 23 days.

Price history

AskCar first saw this advert on 16 October 2026 at £23,499. Its asking price is now £22,990, £509 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 16 October 2026: £23,499
• 29 October 2026: £22,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 3 January 2027.

It has had 2 MOTs. The latest, on 13 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 34,439 miles, which matches the advertised 34,000 miles.

Advertised mileage is about 400 miles higher than the median mileage of a 2023 Mercedes-Benz GLB on AskCar.

Similar cars

7 other 2023 Mercedes-Benz GLB AMG Line Executive 2.0 diesel automatic SUVs are for sale at UK dealers, from £20,490 to £26,494, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2023 Mercedes-Benz GLB AMG Line Executive, 2.0 diesel SUV, blue. Mileage: 30,116 miles. Price: £24,639, £1,649 more than this car. Dealer: Lookers Mercedes-Benz of Eastbourne in Eastbourne. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-c08c69943671
• 2023 Mercedes-Benz GLB AMG Line Executive, 2.0 diesel SUV, black. Mileage: 29,844 miles. Price: £25,400, £2,410 more than this car. Dealer: Sytner Select Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-6a7fdafb6cb6
• 2023 Mercedes-Benz GLB AMG Line Executive, 2.0 diesel SUV, blue. Mileage: 40,280 miles. Price: £25,690, £2,700 more than this car. Dealer: Stratstone Mercedes-Benz of Lakeside in Chafford Hundred and West Thurrock. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-85f302816773

• The nearest: 2023 Mercedes-Benz GLB AMG Line Executive, 2.0 diesel SUV, red, 18 miles from this car. Mileage: 45,035 miles. Price: £24,500, £1,510 more than this car. Dealer: Sytner Group Mercedes-Benz of Watford in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2023-450306978e26