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: 90,907 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

At 90,907 miles, this 2021 Mercedes-Benz S Class AMG Line Premium has covered about 48,300 more miles than other 2021 Mercedes-Benz S Class cars. The AskCar estimate for this car is £42,874. It is priced at £41,975, which is £899 below 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 36 days ago. Its asking price has since fallen by £3,000. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at PCBS Sales in Tonbridge. 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: £899 (2%) under the AskCar estimate of £42,874.

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 36 days.

Price history

AskCar first saw this advert on 2 October 2026 at £44,975. Its asking price is now £41,975, £3,000 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 2 October 2026: £44,975
• 15 October 2026: £43,975
• 22 October 2026: £42,975
• 31 October 2026: £41,975

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 24 November 2026.

It has had 2 MOTs. The latest, on 11 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 77,098 miles, which matches the advertised 90,907 miles.

Advertised mileage is about 48,300 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 £42,841 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, £866 more 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: 65,000 miles. Price: £47,500, £5,525 more than this car. Dealer: Reverie Autos in Hatfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-508b191a0835
• 2021 Mercedes-Benz S Class AMG Line Premium, 3.0 petrol saloon, blue. Mileage: 28,582 miles. Price: £51,410, £9,435 more than this car. Dealer: Evans Halshaw BYD Rotherham in Rotherham. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-3075a4102fde