2021 Mercedes-Benz S Class

2.9 S350d AMG Line Auto RWD Euro 6 4dr (281 bhp)

£49,995

Above the going rate: £5,522 over the typical £44,473 for this model, age and mileage, drawing on 544 adverts of this make and model.

Overview

Make: Mercedes-Benz
Model: S Class
Trim: AMG LINE
Version: 2.9 S350d AMG Line Auto RWD Euro 6 4dr (281 bhp)
Mileage: 66,900 miles
Year: 2021
Fuel type: Diesel
Body type: Saloon
Engine: 2.9 L
Gearbox: Automatic
Power: 281 bhp
Seats: 5
CO2: 173 g/km
Colour: Grey
Doors: 4
Driven wheels: Rear Wheel Drive
Engine badge: S350d
Emissions standard: Euro 6

About this car

With 66,900 miles on the clock, this 2021 Mercedes-Benz S Class AMG Line has done roughly 27,100 more miles than a typical 2021 Mercedes-Benz S Class. Our estimated market asking price is £44,473. This car is advertised at £49,995, which is £5,522 above that figure. Our estimate draws on 544 Mercedes-Benz S Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 151 days ago. Its asking price has since fallen by £6,000. That may be worth mentioning if you discuss the price with the dealer. Its MOT is recorded as valid until 16 March 2027. The advertised mileage is consistent with the latest MOT reading. You can find this car at SA Specialist Cars SOT in Stoke-on-Trent.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 28 May 2026, 151 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £6,000 from the first recorded £55,995. 1 price reduction recorded, the latest observed on 26 September 2026.

Recorded asking prices
Date observed	Asking price
29 May 2026	£55,995
10 July 2026	£55,995
26 September 2026	£49,995
23 October 2026	£49,995

Price and mileage comparison

Estimated market asking price: £44,473. The asking price is £5,522 above this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 544 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 27,100 miles higher than typical for a 2021 Mercedes-Benz S Class.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 16 March 2027. 66,910 miles at the last test.

5 other cars with the same year, trim, gearbox and fuel are for sale from £37,995 to £56,890.

Other matching cars
Asking price	Mileage
£37,995	100,778 miles
£40,900	80,516 miles
£46,989	51,128 miles
£49,995	34,509 miles
£56,890	22,000 miles

These cars have covered 22,000–100,778 miles, compared with 66,900 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

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

Vehicle photos

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