2018 Mercedes-Benz S Class 2.9 S350Ld AMG Line

Price: £19,995. Fair price: £719 (3%) under the AskCar estimate of £20,714, our expected asking price for this car from its model, age, mileage and specification, drawing on 567 priced Mercedes-Benz S Class adverts on AskCar as of 5 November 2026.

AskCar lists 631 used Mercedes-Benz S Class from 445 UK dealerships, as of 5 November 2026.

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: 83,000 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.9 litres, 282 bhp
  • Gearbox: Automatic (G-Tronic+)
  • Drive: Rear-wheel drive
  • Colour: Silver
  • CO2: 153 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz S Class AMG Line has covered 83,000 miles, around 6,400 more miles than is typical for its age. Priced at £19,995, it is advertised £719 below the AskCar estimate of £20,714. The AskCar estimate uses UK dealer asking prices, including 567 Mercedes-Benz S Class adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 94 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. It is for sale at Jefferies Farm Car Sales in Billingshurst. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £719 (3%) under the AskCar estimate of £20,714.

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 567 priced Mercedes-Benz S Class adverts across different ages and specifications, as of 5 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 5 November 2026.

Time on sale

This 2018 Mercedes-Benz S Class has been on sale for at least 94 days.

Price history

AskCar first saw this advert on 3 August 2026 at £20,995. Its asking price is now £19,995, £1,000 less. The latest price cut was seen on 18 August 2026.

Price changes recorded:

  • 3 August 2026: £20,995
  • 18 August 2026: £19,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 8 June 2027.

It failed its MOT on 9 June 2026 (nearside front tyre has ply or cords exposed) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 79,824 miles, which matches the advertised 83,000 miles.

Advertised mileage is about 6,400 miles higher than the median mileage of a 2018 Mercedes-Benz S Class on AskCar.

Similar cars

8 other 2018 Mercedes-Benz S Class AMG Line 2.9 diesel automatic saloons are for sale at UK dealers, from £19,070 to £25,495, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, grey. Mileage: 88,625 miles. Price: £19,070, £925 less than this car. Dealer: Evans Halshaw MG Banbury in Banbury. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-54e0f933d273
  • 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, black. Mileage: 89,823 miles. Price: £20,499, £504 more than this car. Dealer: Automania Specialist Cars in West Bromwich. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-1026519dc5f7
  • 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, black. Mileage: 65,802 miles. Price: £23,999, £4,004 more than this car. Dealer: P W Millar Ford in Barry. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-ea7ba4c5aeac
  • The nearest: 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, black, 37 miles from this car. Mileage: 32,000 miles. Price: £25,000, £5,005 more than this car. Dealer: MB Specialist in London. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-a0c70f9db27d

Browse all Mercedes-Benz S Class cars for sale · 2018 Mercedes-Benz S Class price guide

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Photos

75 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.