2021 Mercedes-Benz S Class

2.9 S350d L AMG Line Premium 9G-Tronic RWD Euro 6 4dr (281 bhp)

£54,898

Fair price: within 8% of the typical £52,099 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 PREMIUM
Version: 2.9 S350d L AMG Line Premium 9G-Tronic RWD Euro 6 4dr (281 bhp)
Mileage: 35,211 miles
Year: 2021
Fuel type: Diesel
Body type: Saloon
Engine: 2.9 L
Gearbox: Automatic
Power: 281 bhp
Seats: 5
CO2: 180 g/km
Colour: Grey
Doors: 4
Driven wheels: Rear Wheel Drive
Gearbox version: 9G-Tronic
Engine badge: S350d
Emissions standard: Euro 6

About this car

At 35,211 miles, this 2021 Mercedes-Benz S Class AMG Line Premium has covered about 4,600 fewer miles than other 2021 Mercedes-Benz S Class cars. Its asking price of £54,898 is £2,799 above our estimate of £52,099. We use UK dealer asking prices, including 544 Mercedes-Benz S Class listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 146 days ago, the asking price has dropped by £4,000. That history is worth bearing in mind when speaking to the dealer. Its recorded MOT is valid until 2 June 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Arnold Clark Glasgow Corvette / Maserati / LUXE, based in Glasgow.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 1 June 2026, 146 days ago. Advert duration calculated on 25 October 2026. Net asking-price reduction: £4,000 from the first recorded £58,898. 2 price reductions recorded, the latest observed on 13 October 2026.

Recorded asking prices
Date observed	Asking price
1 June 2026	£58,898
6 July 2026	£58,898
17 July 2026	£56,898
18 July 2026	£56,898
13 October 2026	£54,898
23 October 2026	£54,898

Price and mileage comparison

Estimated market asking price: £52,099. The asking price is £2,799 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 4,600 miles lower than typical for a 2021 Mercedes-Benz S Class.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 2 June 2027. 35,198 miles at the last test.

6 other cars with the same year, trim, gearbox and fuel are for sale from £41,900 to £58,000.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£41,900	71,581 miles
£49,995	54,151 miles
£53,000	18,982 miles
£55,000	42,881 miles
£56,898	28,241 miles

These cars have covered 18,982–71,581 miles, compared with 35,211 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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