2021 Mercedes-Benz CLS

2.9 CLS400d AMG Line Night Edition Premium Plus G-Tronic 4WD Euro 6 (s/s) 4dr Coupe (325 bhp)

£30,973

Fair price: within 8% of the typical £33,615 for this model, age and mileage, drawing on 313 adverts of this make and model.

Overview

Make: Mercedes-Benz
Model: CLS
Trim: AMG LINE NIGHT EDITION PREMIUM PLUS
Version: 2.9 CLS400d AMG Line Night Edition Premium Plus G-Tronic 4WD Euro 6 (s/s) 4dr Coupe (325 bhp)
Mileage: 29,401 miles
Year: 2021
Fuel type: Diesel
Body type: Saloon
Engine: 2.9 L
Gearbox: Automatic
Power: 325 bhp
Seats: 5
CO2: 191 g/km
Colour: Grey
Doors: 4
Driven wheels: Four Wheel Drive
Gearbox version: G-Tronic
Engine badge: CLS400d
Emissions standard: Euro 6

About this car

This 2021 Mercedes-Benz CLS AMG Line Night Edition Premium Plus has covered 29,401 miles, around 15,600 fewer than typical for its age. At £30,973, it is advertised £2,642 below our estimated market asking price of £33,615. Our estimate draws on 313 Mercedes-Benz CLS adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 27 days ago, the asking price has dropped by £1,377. MOT records show an expiry date of 16 June 2027, and the latest recorded mileage is consistent with the advert. It is for sale at Prestige Cars Kent in Orpington.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 29 September 2026, 27 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £1,377 from the first recorded £32,350. 6 price reductions recorded, the latest observed on 22 October 2026.

Recorded asking prices
Date observed	Asking price
29 September 2026	£32,350
3 October 2026	£32,188
8 October 2026	£31,825
10 October 2026	£31,693
15 October 2026	£31,260
17 October 2026	£31,182
22 October 2026	£30,973
23 October 2026	£30,973

Price and mileage comparison

Estimated market asking price: £33,615. The asking price is £2,642 below 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 313 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 15,600 miles lower than typical for a 2021 Mercedes-Benz CLS.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 16 June 2027. 28,577 miles at the last test.

7 other cars with the same year, trim, gearbox and fuel are for sale from £26,495 to £34,995.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£26,495	60,000 miles
£28,495	67,982 miles
£30,975	35,192 miles
£30,990	45,000 miles
£31,548	40,043 miles

These cars have covered 28,878–67,982 miles, compared with 29,401 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 CLS cars for sale · 2021 Mercedes-Benz CLS price guide

Vehicle photos

AskCar lists 589,789 cars from 13,079 UK dealer locations, read and updated daily from dealer websites. More than any other UK site. No dealer pays to be listed.