2021 Mercedes-Benz S Class 3.0 S500Lh MHEV AMG Line Premium Plus Executive

Price: £51,990. Fair price: £1,032 (2%) over the AskCar estimate of £50,958, our expected asking price for this car from its model, age, mileage and specification, drawing on 568 priced Mercedes-Benz S Class adverts on AskCar as of 9 November 2026.

AskCar lists 634 used Mercedes-Benz S Class from 444 UK dealerships, as of 9 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: S Class
  • Trim: AMG Line Premium Plus Executive
  • Version: 3.0 S500Lh Mhev AMG Line AMG Line Premium Plus Executive G-Tronic+ 4WD Euro 6 (s/s) 4dr (Premium Plus, Executive) (429 bhp)
  • Year: 2021
  • Mileage: 86,000 miles
  • Fuel: Petrol, mild hybrid
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 3.0 litres, 429 bhp
  • Gearbox: Automatic (G-Tronic+)
  • Drive: Four-wheel drive
  • Colour: Blue
  • CO2: 204 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz S Class AMG Line Premium Plus Executive has covered 86,000 miles, around 43,100 more miles than is typical for its age. The AskCar estimate for this car is £50,958. It is priced at £51,990, which is £1,032 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 have tracked this advert for 130 days. Our latest MOT record expired on 3 July 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 Priory Cars, based in Bedford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,032 (2%) over the AskCar estimate of £50,958.

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 9 November 2026.

A 2021 Mercedes-Benz S Class with the 3.0 petrol engine is typically advertised at £54,900: the median of the 17 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2021 Mercedes-Benz S Class has been on sale for at least 130 days.

Price history

AskCar first saw this advert on 2 July 2026 at £48,990. Its asking price is now £51,990, £3,000 more.

Price changes recorded:

  • 3 July 2026: £48,990
  • 8 October 2026: £51,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: the latest record we hold ran out on 3 July 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 4 July 2025, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge worn smooth on inner edge; rear brake pad(s) wearing thin.

Mileage at that test: 66,579 miles, which matches the advertised 86,000 miles.

Advertised mileage is about 43,100 miles higher than the median mileage of a 2021 Mercedes-Benz S Class on AskCar.

Similar cars

5 other 2021 Mercedes-Benz S Class AMG Line Premium Plus Executive 3.0 petrol automatic saloons are for sale at UK dealers, from £50,000 to £62,450, as of 9 November 2026.

The 3 closest to this car in mileage:

Browse all Mercedes-Benz S Class cars for sale · 2021 Mercedes-Benz S Class price guide

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Photos

17 photos of this car are on its AskCar page.

As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.