2020 Mercedes-Benz S Class 2.9 S350Ld Grand Edition Executive

Overview

• Make: Mercedes-Benz
• Model: S Class
• Trim: Grand Edition Executive
• Version: 2.9 S350Ld Grand Edition Executive G-Tronic+ RWD Euro 6 (s/s) 4dr (282 bhp)
• Year: 2020
• Mileage: 64,290 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: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz S Class Grand Edition Executive has covered 64,290 miles, around 13,400 fewer miles than is typical for its age. Its asking price of £30,995 is £423 below the AskCar estimate of £31,418. The AskCar estimate uses 568 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 35 days ago. Its asking price has since fallen by £1,891. The government's MOT record matches its advertised mileage. It is for sale at House Of Motors in Romford. 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: £423 (1%) under the AskCar estimate of £31,418.

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 2020 Mercedes-Benz S Class with the 2.9 diesel engine is typically advertised at £28,000: the median of the 12 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2020 Mercedes-Benz S Class has been on sale for at least 35 days.

Price history

AskCar first saw this advert on 3 October 2026 at £32,886. Its asking price is now £30,995, £1,891 less. The latest price cut was seen on 5 October 2026.

Price changes recorded:

• 3 October 2026: £32,886
• 5 October 2026: £30,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 25 November 2026.

It has had 5 MOTs. The latest, on 6 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 41,678 miles, which matches the advertised 64,290 miles.

Advertised mileage is about 13,400 miles lower than the median mileage of a 2020 Mercedes-Benz S Class on AskCar.

Similar cars

7 other 2020 Mercedes-Benz S Class Grand Edition Executive 2.9 diesel automatic saloons are for sale at UK dealers, from £23,995 to £32,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz S Class Grand Edition Executive, 2.9 diesel saloon, silver. Mileage: 62,550 miles. Price: £29,950, £1,045 less than this car. Dealer: Smithfield Motors in Market Drayton. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2020-9fe0d4c84571
• 2020 Mercedes-Benz S Class Grand Edition Executive, 2.9 diesel saloon, grey. Mileage: 72,000 miles. Price: £26,450, £4,545 less than this car. Dealer: The Car Shop Bedford in Bedford. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2020-48a678ef189e
• 2020 Mercedes-Benz S Class Grand Edition Executive, 2.9 diesel saloon, black. Mileage: 73,000 miles. Price: £27,990, £3,005 less than this car. Dealer: ADF Car Sales in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2020-1aa103680745

• The nearest: 2020 Mercedes-Benz S Class Grand Edition Executive, 2.9 diesel saloon, black, 23 miles from this car. Mileage: 91,000 miles. Price: £25,995, £5,000 less than this car. Dealer: Top Gear Harrow in Harrow. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2020-bb20239cf3fd