2018 Mercedes-Benz S Class 2.9 AMG Line
Price: £25,000. Good value: £4,757 (15%) under the AskCar estimate of £29,757, 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
- Version: 2.9 AMG Line G-Tronic+ RWD Euro 6 (s/s) 4dr (282 bhp)
- Year: 2018
- Mileage: 32,000 miles
- Fuel: Diesel
- Body: Saloon, 4 doors, 5 seats
- Engine: 2.9 litres, 282 bhp
- Gearbox: Automatic (G-Tronic+)
- Drive: Rear-wheel drive
- Colour: 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 32,000 miles, approximately 44,800 below the typical mileage for its age. The dealer is asking £25,000, which is £4,757 below the AskCar estimate of £29,757. To work out the AskCar estimate, we analyse UK dealer adverts for 565 Mercedes-Benz S Class cars across different ages and specifications. We first recorded this car for sale 112 days ago. It is for sale at MB Specialist in Acton. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Good value: £4,757 (15%) under the AskCar estimate of £29,757.
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 112 days.
Price history
AskCar first saw this advert on 17 July 2026 at £25,000. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 44,800 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 6 November 2026.
The 3 closest to this car in mileage:
- 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, black. Mileage: 39,993 miles. Price: £24,490, £510 less than this car. Dealer: P W Millar Ford in Barry. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-1e4ebad74085
- 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, black. Mileage: 52,000 miles. Price: £23,999, £1,001 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, black. Mileage: 10,000 miles. Price: £20,000, £5,000 less than this car. Dealer: Car Firm Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-982161b345df
- The nearest: 2018 Mercedes-Benz S Class AMG Line, 2.9 diesel saloon, black, 20 miles from this car. Mileage: 61,500 miles. Price: £25,495, £495 more than this car. Dealer: Pembury Cars in Epping. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-b816a58ff81a
Browse all Mercedes-Benz S Class cars for sale · 2018 Mercedes-Benz S Class price guide
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Photos
29 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.