2018 Mercedes-Benz C Class 3.0 C43 V6 AMG Premium Plus

Overview

• Make: Mercedes-Benz
• Model: C Class
• Trim: AMG Premium Plus
• Version: 3.0 C43 V6 AMG Premium Plus G-Tronic+ 4WD Euro 6 (s/s) 2dr Cabriolet (362 bhp)
• Year: 2018
• Mileage: 57,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 362 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 194 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 57,000 miles on the clock, this 2018 Mercedes-Benz C Class AMG Premium Plus has done roughly 8,700 fewer miles than a typical 2018 Mercedes-Benz C Class. Its asking price of £21,995 is £2,148 below the AskCar estimate of £24,143. To work out the AskCar estimate, we analyse UK dealer adverts for 4,635 Mercedes-Benz C Class cars across different ages and specifications. This car was first seen in our listings data 17 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Sedgebrook Motors, based in South Kesteven. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Good value: £2,148 (8%) under the AskCar estimate of £24,143.

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 4,635 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 5 November 2026.

A 2018 Mercedes-Benz C Class with the 3.0 petrol engine is typically advertised at £22,600: the median of the 51 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 Mercedes-Benz C Class has been on sale for at least 17 days.

Price history

AskCar first saw this advert on 19 October 2026 at £21,995. 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 5 November 2026: valid until 10 March 2027.

It has had 7 MOTs. The latest, on 11 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 55,603 miles, which matches the advertised 57,000 miles.

Advertised mileage is about 8,700 miles lower than the median mileage of a 2018 Mercedes-Benz C Class on AskCar.

Similar cars

4 other 2018 Mercedes-Benz C Class AMG Premium Plus 3.0 petrol automatic convertibles are for sale at UK dealers, from £20,990 to £27,999, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz C Class AMG Premium Plus, 3.0 petrol convertible, black. Mileage: 58,000 miles. Price: £27,999, £6,004 more than this car. Dealer: A & S Cars in Bishop's Stortford. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-350e69a65d52
• 2018 Mercedes-Benz C Class AMG Premium Plus, 3.0 petrol convertible, white. Mileage: 45,000 miles. Price: £23,000, £1,005 more than this car. Dealer: Mini Autos in London. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-ae451a8ac6cb
• 2018 Mercedes-Benz C Class AMG Premium Plus, 3.0 petrol convertible, black. Mileage: 75,450 miles. Price: £20,990, £1,005 less than this car. Dealer: Cars Direct Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-d3ca47bb54a9