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: 88,000 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: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz S Class Grand Edition Executive is advertised with 88,000 miles, approximately 10,300 above the typical mileage for its age. The AskCar estimate for this car is £26,433. It is priced at £27,995, which is £1,562 above that estimate. The AskCar estimate draws on 568 Mercedes-Benz S Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 86 days ago. Its asking price has since fallen by £2,000. Our latest MOT record expired on 22 October 2026. Check the current position with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Romans Of St Albans, based in St Albans. 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: £1,562 (5%) over the AskCar estimate of £26,433.

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 86 days.

Price history

AskCar first saw this advert on 13 August 2026 at £29,995. Its asking price is now £27,995, £2,000 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 13 August 2026: £29,995
• 7 November 2026: £27,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: the latest record we hold ran out on 22 October 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 20 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 74,951 miles, which matches the advertised 88,000 miles.

Advertised mileage is about 10,300 miles higher 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, black. Mileage: 91,000 miles. Price: £25,995, £2,000 less than this car. Dealer: Top Gear Harrow in Harrow. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2020-bb20239cf3fd
• 2020 Mercedes-Benz S Class Grand Edition Executive, 2.9 diesel saloon, black. Mileage: 81,000 miles. Price: £23,995, £4,000 less than this car. Dealer: Primegate Motors in Egham. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2020-b99f87be687f
• 2020 Mercedes-Benz S Class Grand Edition Executive, 2.9 diesel saloon, white. Mileage: 78,700 miles. Price: £32,995, £5,000 more than this car. Dealer: George Kingsley Prestige & Performance in Colchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2020-a411052b71b4