2018 Mercedes-Benz S Class 2.9 S400Ld AMG Line

Version: 2.9 S400Ld AMG Line G-Tronic+ RWD Euro 6 (s/s) 4dr (335 bhp)

Price: £23,999. Fair price: £1,584 (6%) under the AskCar estimate of £25,583, our expected asking price for this car from its model, age, mileage and specification, drawing on 558 priced Mercedes-Benz S Class adverts on AskCar as of 30 October 2026.

AskCar lists 617 used Mercedes-Benz S Class from 431 UK dealerships, as of 30 October 2026.

Overview

Make
Mercedes-Benz
Model
S Class
Trim
AMG Line
Version
2.9 S400Ld AMG Line G-Tronic+ RWD Euro 6 (s/s) 4dr (335 bhp)
Mileage
65,802 miles
Year
2018
Fuel type
Diesel
Body type
Saloon
Engine
2.9 L
Gearbox
Automatic
Power
335 bhp
Seats
5
CO2
155 g/km
Colour
Black
Doors
4
Driven wheels
Rear Wheel Drive
Gearbox version
G-Tronic+
Engine badge
S400Ld
Emissions standard
Euro 6

About this car

This 2018 Mercedes-Benz S Class AMG Line is advertised with 65,802 miles, approximately 10,200 below the typical mileage for its age. The dealer is asking £23,999, which is £1,584 below the AskCar estimate of £25,583. To work out the AskCar estimate, we analyse UK dealer adverts for 558 Mercedes-Benz S Class cars across different ages and specifications. We first recorded this car for sale today. Its recorded MOT is valid until 23 December 2026, and its advertised mileage is consistent with the latest MOT reading. You can find this car at P W Millar Ford in Barry.

Stock data as of 30 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 30 October 2026.

Recorded asking prices
Date observedAsking price
30 October 2026£23,999

Price and mileage comparison

Fair price: £1,584 (6%) under the AskCar estimate of £25,583.

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 558 priced Mercedes-Benz S Class adverts across different ages and specifications, as of 30 October 2026.

Advertised mileage is about 10,200 miles lower than the median mileage of a 2018 Mercedes-Benz S Class on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 23 December 2026. 59,226 miles at the last test.

Other matching cars

8 other 2018 Mercedes-Benz S Class AMG Line automatic diesel cars are for sale at UK dealers from £19,070 to £25,495, as of 30 October 2026.

The 5 cheapest:

The 8 matching cars have covered 10,000 to 89,823 miles, compared with 65,802 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

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

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Photos

52 photos of this car are on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.