2018 Mercedes-Benz C Class 2.1 AMG Line

Overview

• Make: Mercedes-Benz
• Model: C Class
• Trim: AMG Line
• Version: 2.1 AMG Line Auto Euro 6 5dr
• Year: 2018
• Mileage: 45,000 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.1 litres
• Gearbox: Automatic
• Colour: Black
• CO2: 130 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz C Class AMG Line has covered 45,000 miles. The dealer is asking £12,990, which is £4,356 below the AskCar estimate of £17,346. We recommend confirming the advertised price and vehicle details. To work out the AskCar estimate, we analyse UK dealer adverts for 4,645 Mercedes-Benz C Class cars across different ages and specifications. We first recorded this advert 79 days ago, and its asking price has since fallen by £509. The last MOT shows 45,863 miles, more than the advert. This is worth checking with the dealer. Its recorded MOT is valid until 29 July 2027. It is advertised by One Class Auto in Sandy. 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

Far below the going rate: £4,356 (25%) under the AskCar estimate of £17,346. Worth asking the dealer why.

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 79 days.

Price history

AskCar first saw this advert on 19 August 2026 at £13,499. Its asking price is now £12,990, £509 less. The latest price cut was seen on 10 October 2026.

Price changes recorded:

• 19 August 2026: £13,499
• 19 September 2026: £13,490
• 21 September 2026: £12,990
• 10 October 2026: £12,490
• 6 November 2026: £12,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 29 July 2027.

It has had 8 MOTs. The latest, on 28 July 2026, passed.

Advisories at the latest test: front brake disc worn, pitted or scored, but not seriously weakened; rear brake disc worn, pitted or scored, but not seriously weakened; rear brake pad(s) wearing thin.

Mileage at that test: 45,863 miles. The advert says 45,000 miles, fewer than the MOT record, so ask the dealer which is right.

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

Similar cars

14 other 2018 Mercedes-Benz C Class AMG Line 2.1 diesel automatic estates are for sale at UK dealers, from £8,999 to £18,995, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz C Class AMG Line, 2.1 diesel estate, grey. Mileage: 44,000 miles. Price: £16,000, £3,010 more than this car. Dealer: Logic 1 Vehicle Solutions in Ash and Ash Vale. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-28d400ec7194
• 2018 Mercedes-Benz C Class AMG Line, 2.1 diesel estate, red. Mileage: 54,690 miles. Price: £16,995, £4,005 more than this car. Dealer: JCB Group Ashford Orbital Kia in Ashford. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-af532832e747
• 2018 Mercedes-Benz C Class AMG Line, 2.1 diesel estate, blue. Mileage: 57,958 miles. Price: £18,995, £6,005 more than this car. Dealer: House of Motors London in Barking and Dagenham. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-f3febce49e29