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

Overview

• Make: Mercedes-Benz
• Model: S Class
• Trim: AMG Line Premium
• Version: 3.0 S500Lh Mhev AMG Line Premium G-Tronic+ 4WD Euro 6 (s/s) 4dr (429 bhp)
• Year: 2021
• Mileage: 65,000 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: Black
• CO2: 199 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz S Class AMG Line Premium has covered 65,000 miles, around 22,400 more miles than is typical for its age. Priced at £47,500, it is advertised £4,282 below the AskCar estimate of £51,782. 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 first saw this car advertised 163 days ago. Its asking price has since fallen by £2,250. The latest recorded MOT expiry date is 30 July 2026, which has passed. Confirm its status with the dealer. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Reverie Autos in Hatfield. 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

Good value: £4,282 (8%) under the AskCar estimate of £51,782.

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 3.0 petrol engine is typically advertised at £53,900: the median of the 16 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 163 days.

Price history

AskCar first saw this advert on 28 May 2026 at £49,750. Its asking price is now £47,500, £2,250 less. The latest price cut was seen on 15 October 2026.

Price changes recorded:

• 29 May 2026: £49,750
• 16 June 2026: £49,000
• 15 July 2026: £48,500
• 15 October 2026: £47,500

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 30 July 2026; ask the dealer for the current MOT.

It failed its MOT on 23 July 2025 (nearside rear tyre tread depth below requirements of 1.6mm) and passed 1 day later, on 24 July 2025.

Advisories at the latest test: nearside front outer tyre worn close to legal limit/worn on edge; nearside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 47,187 miles, which matches the advertised 65,000 miles.

Advertised mileage is about 22,400 miles higher than the median mileage of a 2021 Mercedes-Benz S Class on AskCar.

Similar cars

4 other 2021 Mercedes-Benz S Class AMG Line Premium 3.0 petrol automatic saloons are for sale at UK dealers, from £41,975 to £54,885, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz S Class AMG Line Premium, 3.0 petrol saloon, black. Mileage: 83,769 miles. Price: £42,841, £4,659 less than this car. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-bf22065ef285
• 2021 Mercedes-Benz S Class AMG Line Premium, 3.0 petrol saloon, black. Mileage: 90,907 miles. Price: £41,975, £5,525 less than this car. Dealer: PCBS Sales in Tonbridge. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-cae8e030836d
• 2021 Mercedes-Benz S Class AMG Line Premium, 3.0 petrol saloon, blue. Mileage: 28,582 miles. Price: £51,410, £3,910 more than this car. Dealer: Evans Halshaw BYD Rotherham in Rotherham. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-3075a4102fde