2021 Mercedes-Benz S Class 3.0 AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: S Class
• Trim: AMG Line Premium
• Version: 3.0 Mhev AMG Line Premium G-Tronic+ 4WD Euro 6 (s/s) 4dr (429 bhp)
• Year: 2021
• Mileage: 28,582 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: 199 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz S Class AMG Line Premium has covered 28,582 miles, around 14,000 fewer miles than is typical for its age. Priced at £51,410, it is advertised £7,978 below the AskCar estimate of £59,388. To work out the AskCar estimate, we analyse UK dealer adverts for 568 Mercedes-Benz S Class cars across different ages and specifications. We first saw this car advertised 163 days ago. Its asking price has since fallen by £5,430. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Evans Halshaw BYD Rotherham, based in Rotherham. 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: £7,978 (13%) under the AskCar estimate of £59,388.

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 £56,840. Its asking price is now £51,410, £5,430 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 28 May 2026: £56,840
• 1 June 2026: £56,830
• 8 June 2026: £56,820
• 29 June 2026: £56,720
• 8 July 2026: £53,999
• 13 July 2026: £53,950
• 21 July 2026: £53,850
• 27 July 2026: £53,800
• 3 August 2026: £53,750
• 18 August 2026: £53,700
• 24 August 2026: £53,650
• 25 August 2026: £53,120
• 2 September 2026: £53,100
• 8 September 2026: £53,050
• 16 September 2026: £52,980
• 22 September 2026: £52,910
• 29 September 2026: £52,350
• 7 October 2026: £52,130
• 13 October 2026: £52,060
• 20 October 2026: £51,990
• 27 October 2026: £51,920
• 4 November 2026: £51,410

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 19 March 2027.

It failed its MOT on 4 March 2026 (offside rear tyre has a cut in excess of the requirements deep enough to reach the ply or cords multiple cuts which cords can be seen through) and passed 16 days later, on 20 March 2026.

Advisories at the latest test: nearside rear tyre slightly damaged/cracking or perishing inner edge.

Mileage at that test: 28,338 miles, which matches the advertised 28,582 miles.

Advertised mileage is about 14,000 miles lower 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, silver. Mileage: 25,491 miles. Price: £54,885, £3,475 more than this car. Dealer: JCT600 Volkswagen Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-66e415548bc3
• 2021 Mercedes-Benz S Class AMG Line Premium, 3.0 petrol saloon, black. Mileage: 65,000 miles. Price: £47,500, £3,910 less 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, black. Mileage: 83,769 miles. Price: £42,841, £8,569 less than this car. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-bf22065ef285