2018 Mercedes-Benz S Class 2.9 S350Ld AMG Line

Overview

• Make: Mercedes-Benz
• Model: S Class
• Trim: AMG Line
• Version: 2.9 S350Ld AMG Line G-Tronic+ RWD Euro 6 (s/s) 4dr (282 bhp)
• Year: 2018
• Mileage: 39,993 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.9 litres, 282 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 153 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz S Class AMG Line is advertised with 39,993 miles, approximately 36,800 below the typical mileage for its age. Priced at £24,490, it is advertised £2,942 below the AskCar estimate of £27,432. To work out the AskCar estimate, we analyse UK dealer adverts for 568 Mercedes-Benz S Class cars across different ages and specifications. We first saw this car advertised 24 days ago. Its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by P W Millar Ford in Barry. 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

Good value: £2,942 (10%) under the AskCar estimate of £27,432.

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 568 priced Mercedes-Benz S Class adverts across different ages and specifications, as of 7 November 2026.

A 2018 Mercedes-Benz S Class with the 2.9 diesel engine is typically advertised at £24,000: the median of the 50 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2018 Mercedes-Benz S Class has been on sale for at least 24 days.

Price history

AskCar first saw this advert on 14 October 2026 at £24,990. Its asking price is now £24,490, £500 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 14 October 2026: £24,990
• 30 October 2026: £24,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 15 December 2026.

It has had 6 MOTs. The latest, on 17 November 2025, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge 1.8mm approx bald outer edge; offside front tyre worn close to legal limit/worn on edge 2.0mm approx bald outer edge; nearside rear tyre worn close to legal limit/worn on edge 2.8mm approx; and 2 more.

Mileage at that test: 39,299 miles, which matches the advertised 39,993 miles.

Advertised mileage is about 36,800 miles lower than the median mileage of a 2018 Mercedes-Benz S Class on AskCar.

Similar cars

9 other 2018 Mercedes-Benz S Class AMG Line 2.9 diesel automatic saloons are for sale at UK dealers, from £19,070 to £26,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, black. Mileage: 32,000 miles. Price: £25,000, £510 more than this car. Dealer: MB Specialist in London. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-a0c70f9db27d
• 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, black. Mileage: 52,000 miles. Price: £23,999, £491 less than this car. Dealer: Lookers in Belfast. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-6dfef3e1536e
• 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, silver. Mileage: 55,044 miles. Price: £26,995, £2,505 more than this car. Dealer: Sinclair Volkswagen (Swansea) in Swansea. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-b1c5c4ef66c1

• The nearest: 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, black, under a mile from this car. Mileage: 65,802 miles. Price: £23,999, £491 less than this car. Dealer: P W Millar Ford in Barry. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-ea7ba4c5aeac