2023 Mercedes-Benz GLS 2.9 GLS400d Night Edition

Overview

• Make: Mercedes-Benz
• Model: GLS
• Trim: Night Edition
• Version: 2.9 GLS400d Night Edition G-Tronic 4WD Euro 6 (s/s) 5dr (325 bhp)
• Year: 2023
• Mileage: 23,173 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 7 seats
• Engine: 2.9 litres, 325 bhp
• Gearbox: Automatic (G-Tronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 229 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 23,173 miles, this 2023 Mercedes-Benz GLS Night Edition has covered about 7,400 fewer miles than other 2023 Mercedes-Benz GLS cars. The dealer is asking £57,750, which is £2,184 below the AskCar estimate of £59,934. To work out the AskCar estimate, we analyse UK dealer adverts for 143 Mercedes-Benz GLS cars across different ages and specifications. We first saw this car advertised 39 days ago. Its asking price has since fallen by £1,000. 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: £2,184 (3%) under the AskCar estimate of £59,934.

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 143 priced Mercedes-Benz GLS adverts across different ages and specifications, as of 8 November 2026.

Time on sale

This 2023 Mercedes-Benz GLS has been on sale for at least 39 days.

Price history

AskCar first saw this advert on 30 September 2026 at £58,750. Its asking price is now £57,750, £1,000 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 30 September 2026: £58,750
• 1 October 2026: £61,500
• 7 October 2026: £60,750
• 15 October 2026: £60,000
• 28 October 2026: £58,250
• 5 November 2026: £57,750

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 4 September 2027.

It has had one MOT, on 5 September 2026, and passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge; offside front tyre worn close to legal limit/worn on edge; nearside rear tyre worn close to legal limit/worn on edge; and 1 more.

Mileage at that test: 23,030 miles, which matches the advertised 23,173 miles.

Advertised mileage is about 7,400 miles lower than the median mileage of a 2023 Mercedes-Benz GLS on AskCar.

Similar cars

4 other 2023 Mercedes-Benz GLS Night Edition 2.9 diesel automatic SUVs are for sale at UK dealers, from £50,599 to £59,195, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2023 Mercedes-Benz GLS Night Edition, 2.9 diesel SUV, blue. Mileage: 28,500 miles. Price: £59,195, £1,445 more than this car. Dealer: Sandown Group Mercedes-Benz of Epsom in Epsom. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-2fbaee3648b2
• 2023 Mercedes-Benz GLS Night Edition, 2.9 diesel SUV, grey. Mileage: 36,270 miles. Price: £56,579, £1,171 less than this car. Dealer: cinch in Chichester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-61133a0fdfb3
• 2023 Mercedes-Benz GLS Night Edition, 2.9 diesel SUV, grey. Mileage: 45,000 miles. Price: £51,980, £5,770 less than this car. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-a9d0423e7968