2018 Mercedes-Benz S Class 2.9 S350d AMG Line Premium Plus

Overview

• Make: Mercedes-Benz
• Model: S Class
• Trim: AMG Line Premium Plus
• Version: 2.9 S 350 d AMG Line Premium Plus 9G-Tronic RWD Euro 6 4dr (281 bhp)
• Year: 2018
• Mileage: 118,000 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: 158 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 118,000 miles on the clock, this 2018 Mercedes-Benz S Class AMG Line Premium Plus has done roughly 41,200 more miles than a typical 2018 Mercedes-Benz S Class. The AskCar estimate for this car is £20,841. It is priced at £20,995, which is £154 above that estimate. The AskCar estimate uses UK dealer asking prices, including 570 Mercedes-Benz S Class adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 142 days ago. Its asking price has since fallen by £1,000. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Motorvana in Manchester. 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: £154 (under 1%) over the AskCar estimate of £20,841.

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 570 priced Mercedes-Benz S Class adverts across different ages and specifications, as of 8 November 2026.

A 2018 Mercedes-Benz S Class with the 2.9 diesel engine is typically advertised at £23,900: the median of the 50 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2018 Mercedes-Benz S Class has been on sale for at least 142 days.

Price history

AskCar first saw this advert on 19 June 2026 at £21,995. Its asking price is now £20,995, £1,000 less. The latest price cut was seen on 6 October 2026.

Price changes recorded:

• 19 June 2026: £21,995
• 20 June 2026: £23,995
• 9 July 2026: £22,995
• 20 July 2026: £21,995
• 29 August 2026: £21,495
• 6 October 2026: £20,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 14 December 2026.

It failed its MOT on 15 December 2025 (windscreen washer provides insufficient washer liquid) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 109,952 miles, which matches the advertised 118,000 miles.

Advertised mileage is about 41,200 miles higher than the median mileage of a 2018 Mercedes-Benz S Class on AskCar.

Similar cars

7 other 2018 Mercedes-Benz S Class AMG Line Premium Plus 2.9 diesel automatic saloons are for sale at UK dealers, from £20,990 to £39,991, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz S Class AMG Line Premium Plus, 2.9 diesel saloon, black. Mileage: 115,500 miles. Price: £20,990, the same price as this car. Dealer: Yorkshire's Prestige Centre in Bradford. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-180f618781c6
• 2018 Mercedes-Benz S Class AMG Line Premium Plus, 2.9 diesel saloon, black. Mileage: 100,000 miles. Price: £24,750, £3,755 more than this car. Dealer: ASM (uk) in Redditch. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-ca327091cbff
• 2018 Mercedes-Benz S Class AMG Line Premium Plus, 2.9 diesel saloon, grey. Mileage: 89,252 miles. Price: £23,495, £2,500 more than this car. Dealer: The Drivers Gallery in Bromsgrove. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-ec2a6a7f9ce4