2018 Mercedes-Benz S Class 2.9 S350Ld AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: S Class
• Trim: AMG Line Premium
• Version: 2.9 S350Ld AMG Line Premium G-Tronic+ RWD Euro 6 (s/s) 4dr (282 bhp)
• Year: 2018
• Mileage: 194,469 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.9 litres, 282 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 139 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 194,469 miles, this 2018 Mercedes-Benz S Class AMG Line Premium has covered about 117,700 more miles than other 2018 Mercedes-Benz S Class cars. The AskCar estimate for this car is £13,938. It is priced at £13,995, which is £57 above that estimate. The AskCar estimate uses UK dealer asking prices, including 568 Mercedes-Benz S Class adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 115 days ago, the asking price has dropped by £1,000. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at AA Prestige Cars in Slough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £57 (under 1%) over the AskCar estimate of £13,938.

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 568 priced Mercedes-Benz S Class adverts across different ages and specifications, as of 7 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 7 November 2026.

Time on sale

This 2018 Mercedes-Benz S Class has been on sale for at least 115 days.

Price history

AskCar first saw this advert on 15 July 2026 at £14,995. Its asking price is now £13,995, £1,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 15 July 2026: £14,995
• 25 August 2026: £14,495
• 4 September 2026: £13,995
• 30 October 2026: £14,495
• 4 November 2026: £13,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 6 April 2027.

It has had 8 MOTs. The latest, on 7 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 182,962 miles, which matches the advertised 194,469 miles.

Advertised mileage is about 117,700 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 2.9 diesel automatic saloons are for sale at UK dealers, from £20,000 to £26,990, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz S Class AMG Line Premium, 2.9 diesel saloon, blue. Mileage: 112,000 miles. Price: £20,000, £6,005 more than this car. Dealer: Impulse Motors in Harrow. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-ba68b5878668
• 2018 Mercedes-Benz S Class AMG Line Premium, 2.9 diesel saloon, black. Mileage: 99,800 miles. Price: £21,999, £8,004 more than this car. Dealer: Rydal Motors (Preston) in Preston. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-aeb2d3c6d1b2
• 2018 Mercedes-Benz S Class AMG Line Premium, 2.9 diesel saloon, black. Mileage: 95,000 miles. Price: £21,900, £7,905 more than this car. Dealer: Motonet.com in Coventry. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2018-476eb27f4c6b