2023 Mercedes-Benz S Class 2.9 S350d AMG Line

Overview

• Make: Mercedes-Benz
• Model: S Class
• Trim: AMG Line
• Version: 2.9 S350d AMG Line 9G-Tronic RWD Euro 6 4dr (281 bhp)
• Year: 2023
• Mileage: 23,352 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.9 litres, 281 bhp
• Gearbox: Automatic (9G-Tronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 173 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Mercedes-Benz S Class AMG Line has covered 23,352 miles. The dealer is asking £71,000, which is £4,045 above the AskCar estimate of £66,955. To work out the AskCar estimate, we analyse UK dealer adverts for 573 Mercedes-Benz S Class cars across different ages and specifications. We first recorded this advert 20 days ago, and its asking price has since fallen by £3,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Group Mercedes-Benz of Milton Keynes, based in Milton Keynes. 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: £4,045 (6%) over the AskCar estimate of £66,955.

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 573 priced Mercedes-Benz S Class adverts across different ages and specifications, as of 10 November 2026.

Time on sale

This 2023 Mercedes-Benz S Class has been on sale for at least 20 days.

Price history

AskCar first saw this advert on 21 October 2026 at £74,000. Its asking price is now £71,000, £3,000 less. The latest price cut was seen on 10 November 2026.

Price changes recorded:

• 21 October 2026: £74,000
• 31 October 2026: £72,000
• 10 November 2026: £71,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 28 March 2027.

It failed its MOT on 26 March 2026 (nearside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords) and passed 1 day later, on 27 March 2026.

There were no advisories at the latest test.

Mileage at that test: 20,194 miles, which matches the advertised 23,352 miles.

Advertised mileage is about 1,600 miles lower than the median mileage of a 2023 Mercedes-Benz S Class on AskCar.

Similar cars

4 other 2023 Mercedes-Benz S Class AMG Line 2.9 diesel automatic saloons are for sale at UK dealers, from £54,995 to £78,756, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2023 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, white. Mileage: 24,000 miles. Price: £54,995, £16,005 less than this car. Dealer: Cardiff Motors in Cardiff. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2023-0d7ff316854e
• 2023 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, white. Mileage: 29,000 miles. Price: £56,950, £14,050 less than this car. Dealer: Torque Point in Leighton Buzzard. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2023-3d83c815e4f8
• 2023 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, black. Mileage: 5,165 miles. Price: £78,756, £7,756 more than this car. Dealer: Vertu Mercedes Ascot in Ascot. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2023-620498dd8f6a