2018 Mercedes-Benz C Class 2.1 C250d AMG Line Premium Plus

Overview

• Make: Mercedes-Benz
• Model: C Class
• Trim: AMG Line Premium Plus
• Version: 2.1 C250d AMG Line Premium Plus G-Tronic+ RWD Euro 6 (s/s) 2dr Cabriolet (201 bhp)
• Year: 2018
• Mileage: 39,000 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.1 litres, 201 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 126 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz C Class AMG Line Premium Plus is advertised with 39,000 miles, approximately 26,200 below the typical mileage for its age. Priced at £17,995, it is advertised £597 below the AskCar estimate of £18,592. The AskCar estimate uses 4,645 UK dealer adverts for the Mercedes-Benz C Class, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 149 days ago. Its asking price has since fallen by £500. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at S J Peters in Sudbury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £597 (3%) under the AskCar estimate of £18,592.

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 4,645 priced Mercedes-Benz C Class adverts across different ages and specifications, as of 6 November 2026.

A 2018 Mercedes-Benz C Class with the 2.1 diesel engine is typically advertised at £14,000: the median of the 202 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2018 Mercedes-Benz C Class has been on sale for at least 149 days.

Price history

AskCar first saw this advert on 10 June 2026 at £18,495. Its asking price is now £17,995, £500 less. The latest price cut was seen on 16 September 2026.

Price changes recorded:

• 14 July 2026: £18,495
• 16 September 2026: £17,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 14 November 2026.

It has had 5 MOTs. The latest, on 14 November 2025, passed.

Advisories at the latest test: rear tyre worn close to legal limit/worn on edge both 245/40/18; rear brake pad(s) wearing thin; engine cover and under trays fitted.

Mileage at that test: 36,640 miles, which matches the advertised 39,000 miles.

Advertised mileage is about 26,200 miles lower than the median mileage of a 2018 Mercedes-Benz C Class on AskCar.

Similar cars

12 other 2018 Mercedes-Benz C Class AMG Line Premium Plus 2.1 diesel automatic convertibles are for sale at UK dealers, from £13,400 to £18,995, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz C Class AMG Line Premium Plus, 2.1 diesel convertible, blue. Mileage: 40,403 miles. Price: £17,690, £305 less than this car. Dealer: Car City UK Catterick in Catterick. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-c7705d1bdb33
• 2018 Mercedes-Benz C Class AMG Line Premium Plus, 2.1 diesel convertible, silver. Mileage: 43,268 miles. Price: £18,995, £1,000 more than this car. Dealer: Stoneacre Rotherham Select in Brinsworth. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-a36917e528a8
• 2018 Mercedes-Benz C Class AMG Line Premium Plus, 2.1 diesel convertible, white. Mileage: 43,948 miles. Price: £16,850, £1,145 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-e313070ec2a4

• The nearest: 2018 Mercedes-Benz C Class AMG Line Premium Plus, 2.1 diesel convertible, white, 19 miles from this car. Mileage: 49,000 miles. Price: £17,850, £145 less than this car. Dealer: Peverel Car Company in Wickham Bishops. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-3fbcb25cb663