2021 Mercedes-Benz S Class 2.9

Overview

• Make: Mercedes-Benz
• Model: S Class
• Version: 2.9 Auto Euro 6 4dr
• Year: 2021
• Mileage: 22,200 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.9 litres
• Gearbox: Automatic
• Colour: Black
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 22,200 miles on the clock, this 2021 Mercedes-Benz S Class has done roughly 20,400 fewer miles than a typical 2021 Mercedes-Benz S Class. Priced at £78,995, it is advertised £33,903 above the AskCar estimate of £45,092. 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. We have tracked this advert for 104 days. It is for sale at TM UK Trading in Hornchurch. 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

Above the going rate: £33,903 (75%) over the AskCar estimate of £45,092.

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 2021 Mercedes-Benz S Class with the 2.9 diesel engine is typically advertised at £53,900: the median of the 22 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 Mercedes-Benz S Class has been on sale for at least 104 days.

Price history

AskCar first saw this advert on 26 July 2026 at £78,995. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 20,400 miles lower than the median mileage of a 2021 Mercedes-Benz S Class on AskCar.