2018 Mercedes-Benz C Class 2.1 C220d AMG Line

Overview

• Make: Mercedes-Benz
• Model: C Class
• Trim: AMG Line
• Version: 2.1 C220d AMG Line G-Tronic+ 4WD Euro 6 (s/s) 2dr Cabriolet (168 bhp)
• Year: 2018
• Mileage: 21,000 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.1 litres, 168 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Four-wheel drive
• Colour: Red
• CO2: 140 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 21,000 miles, this 2018 Mercedes-Benz C Class AMG Line has covered about 44,700 fewer miles than other 2018 Mercedes-Benz C Class cars. The AskCar estimate for this car is £19,507. It is priced at £19,695, which is £188 above that estimate. The AskCar estimate uses 4,635 UK dealer adverts for the Mercedes-Benz C Class, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 23 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Christchurch Motor Company, based in Christchurch. 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

Fair price: £188 (under 1%) over the AskCar estimate of £19,507.

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 2.1 diesel engine is typically advertised at £14,000: the median of the 203 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 23 days.

Price history

AskCar first saw this advert on 13 October 2026 at £19,695. 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 14 March 2027.

It failed its MOT on 9 March 2026 (front registration plate does not conform to the specified requirements; rear registration plate does not conform to the specified requirements) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 19,303 miles, which matches the advertised 21,000 miles.

Advertised mileage is about 44,700 miles lower than the median mileage of a 2018 Mercedes-Benz C Class on AskCar.

Similar cars

13 other 2018 Mercedes-Benz C Class AMG Line 2.1 diesel automatic convertibles are for sale at UK dealers, from £12,449 to £17,450, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz C Class AMG Line, 2.1 diesel convertible, black. Mileage: 32,388 miles. Price: £17,450, £2,245 less than this car. Dealer: M B Cars London in St Albans. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-e8481b8ea537
• 2018 Mercedes-Benz C Class AMG Line, 2.1 diesel convertible, blue. Mileage: 38,514 miles. Price: £16,250, £3,445 less than this car. Dealer: Derbyshire Motor Company in Chesterfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-99d5c378acf3
• 2018 Mercedes-Benz C Class AMG Line, 2.1 diesel convertible, grey. Mileage: 39,000 miles. Price: £16,999, £2,696 less than this car. Dealer: Capitol Car Centre in Preston. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-7de40794b57b

• The nearest: 2018 Mercedes-Benz C Class AMG Line, 2.1 diesel convertible, white, 92 miles from this car. Mileage: 84,000 miles. Price: £12,449, £7,246 less than this car. Dealer: Bushey Car Sales in Radlett. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-9dc2e718deb3