2018 Mercedes-Benz S Class 2.9 S350Ld AMG Line Executive

Price: £16,495. Fair price: £437 (2%) under the AskCar estimate of £16,932, our expected asking price for this car from its model, age, mileage and specification, drawing on 565 priced Mercedes-Benz S Class adverts on AskCar as of 6 November 2026.

AskCar lists 633 used Mercedes-Benz S Class from 448 UK dealerships, as of 6 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: S Class
  • Trim: AMG Line Executive
  • Version: 2.9 S350Ld AMG Line Executive G-Tronic+ RWD Euro 6 (s/s) 4dr (282 bhp)
  • Year: 2018
  • Mileage: 278,215 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: 158 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 278,215 miles, this 2018 Mercedes-Benz S Class AMG Line Executive has covered about 201,400 more miles than other 2018 Mercedes-Benz S Class cars. The AskCar estimate for this car is £16,932. It is priced at £16,495, which is £437 below that estimate. The AskCar estimate uses 565 UK dealer adverts for the Mercedes-Benz S Class, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 137 days ago. Its asking price has since fallen by £1,500. Our records show an MOT expiry date of 1 November 2026, which has passed. Ask the dealer for an update. Its advertised mileage matches the government's MOT record. You can find this car at JPK Motors in Leeds. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £437 (2%) under the AskCar estimate of £16,932.

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 565 priced Mercedes-Benz S Class adverts across different ages and specifications, as of 6 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 6 November 2026.

Time on sale

This 2018 Mercedes-Benz S Class has been on sale for at least 137 days.

Price history

AskCar first saw this advert on 22 June 2026 at £17,995. Its asking price is now £16,495, £1,500 less. The latest price cut was seen on 8 October 2026.

Price changes recorded:

  • 22 June 2026: £17,995
  • 2 July 2026: £17,495
  • 13 August 2026: £17,494
  • 8 October 2026: £16,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: the latest record we hold ran out on 1 November 2026; ask the dealer for the current MOT.

It failed its MOT on 28 October 2025 (engine MIL inoperative or indicates a malfunction) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 263,490 miles, which matches the advertised 278,215 miles.

Advertised mileage is about 201,400 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 Executive 2.9 diesel automatic saloons are for sale at UK dealers, from £14,450 to £42,950, as of 6 November 2026.

The 3 closest to this car in mileage:

  • 2018 Mercedes-Benz S Class AMG Line Executive, 2.9 diesel saloon, black. Mileage: 162,000 miles. Price: £14,450, £2,045 less than this car. Dealer: 1St Choice Cars in Romsey. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-b1efa29d487d
  • 2018 Mercedes-Benz S Class AMG Line Executive, 2.9 diesel saloon, black. Mileage: 125,000 miles. Price: £19,995, £3,500 more than this car. Dealer: Grand Motors in Stockport. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-1fef7b2b7586
  • 2018 Mercedes-Benz S Class AMG Line Executive, 2.9 diesel saloon, black. Mileage: 110,000 miles. Price: £19,495, £3,000 more than this car. Dealer: Motorhouse (Beds) in Bedford. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-ae8550138db8

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

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Photos

38 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.