2021 Mercedes-Benz S Class 2.9 S350Ld AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: S Class
• Trim: AMG Line Premium
• Version: 2.9 S350Ld AMG Line Premium G-Tronic+ RWD Euro 6 (s/s) 4dr (282 bhp)
• Year: 2021
• Mileage: 42,881 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.9 litres, 282 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 187 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz S Class AMG Line Premium is advertised with 42,881 miles on the clock. The AskCar estimate for this car is £48,426. It is priced at £55,000, which is £6,574 above that estimate. The AskCar estimate draws on 570 Mercedes-Benz S Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 25 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Wootton Motor Company in Kings Lynn. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £6,574 (13%) over the AskCar estimate of £48,426.

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 570 priced Mercedes-Benz S Class adverts across different ages and specifications, as of 8 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 8 November 2026.

Time on sale

This 2021 Mercedes-Benz S Class has been on sale for at least 25 days.

Price history

AskCar first saw this advert on 14 October 2026 at £55,000. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 28 May 2027.

It has had 2 MOTs. The latest, on 16 May 2026, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge badly worn on inner edge and barely legal; offside rear tyre slightly damaged/cracking or perishing.

Mileage at that test: 38,053 miles, which matches the advertised 42,881 miles.

Similar cars

5 other 2021 Mercedes-Benz S Class AMG Line Premium 2.9 diesel automatic saloons are for sale at UK dealers, from £41,500 to £57,000, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz S Class AMG Line Premium, 2.9 diesel saloon, grey. Mileage: 35,211 miles. Price: £53,898, £1,102 less than this car. Dealer: Arnold Clark Glasgow Corvette / Maserati / LUXE in Glasgow. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-173faff99de7
• 2021 Mercedes-Benz S Class AMG Line Premium, 2.9 diesel saloon, black. Mileage: 54,151 miles. Price: £49,995, £5,005 less than this car. Dealer: Car Hub London in Harlow. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-ebf7d6437145
• 2021 Mercedes-Benz S Class AMG Line Premium, 2.9 diesel saloon, black. Mileage: 28,241 miles. Price: £56,898, £1,898 more than this car. Dealer: Arnold Clark Glasgow BMW in Glasgow. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-24b49b3bf7e8

• The nearest: 2021 Mercedes-Benz S Class AMG Line Premium, 2.9 diesel saloon, silver, 61 miles from this car. Mileage: 71,581 miles. Price: £41,500, £13,500 less than this car. Dealer: Sytner Select Northampton in Northampton. AskCar page: https://askcar.co.uk/car/mercedes-benz-s-class-2021-a11f1f8804b1