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: 45,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 362 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Four-wheel drive
• Colour: White
• CO2: 194 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 45,000 miles on the clock, this 2018 Mercedes-Benz C Class AMG Premium Plus has done roughly 20,200 fewer miles than a typical 2018 Mercedes-Benz C Class. The AskCar estimate for this car is £25,939. It is priced at £23,000, which is £2,939 below that estimate. The AskCar estimate uses UK dealer asking prices, including 4,618 Mercedes-Benz C Class adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 37 days ago. Its asking price has since fallen by £1,000. The government's MOT record matches its advertised mileage. You can find this car at Mini Autos in London. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Good value: £2,939 (11%) under the AskCar estimate of £25,939.

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 4,618 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 2 November 2026.

A 2018 Mercedes-Benz C Class with the 3.0 petrol engine is typically advertised at £23,000: the median of the 54 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Mercedes-Benz C Class has been on sale for at least 37 days.

Price history

AskCar first saw this advert on 26 September 2026 at £24,000. Its asking price is now £23,000, £1,000 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 26 September 2026: £24,000
• 27 September 2026: £23,500
• 29 September 2026: £23,000
• 2 October 2026: £23,500
• 22 October 2026: £23,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 16 February 2027.

It failed its MOT on 16 February 2026 (offside front road wheel fractured 2 cracks) and passed 1 day later, on 17 February 2026.

Advisories at the latest test: rear brake pipe corroded, covered in grease or other material nearside and offside; offside rear inner tyre worn close to legal limit/worn on edge.

Mileage at that test: 43,111 miles, which matches the advertised 45,000 miles.

Advertised mileage is about 20,200 miles lower than the median mileage of a 2018 Mercedes-Benz C Class on AskCar.

Similar cars

5 other 2018 Mercedes-Benz C Class AMG Premium Plus 3.0 petrol automatic convertibles are for sale at UK dealers, from £20,990 to £28,750, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz C Class AMG Premium Plus, 3.0 petrol convertible, black. Mileage: 57,000 miles. Price: £21,995, £1,005 less than this car. Dealer: Sedgebrook Motors in Sedgebrook. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-d26df6adabe0
• 2018 Mercedes-Benz C Class AMG Premium Plus, 3.0 petrol convertible, grey. Mileage: 32,500 miles. Price: £24,995, £1,995 more than this car. Dealer: Southern Prestige Cars in Crawley. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-c68120d63ef2
• 2018 Mercedes-Benz C Class AMG Premium Plus, 3.0 petrol convertible, blue. Mileage: 32,500 miles. Price: £28,750, £5,750 more than this car. Dealer: Castle Motors in Liskeard. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-7804d84e9fbd

• The nearest: 2018 Mercedes-Benz C Class AMG Premium Plus, 3.0 petrol convertible, black, 22 miles from this car. Mileage: 58,000 miles. Price: £27,999, £4,999 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