2018 Mercedes-Benz C Class 2.1 Sport

Price: £10,990. Far below the going rate: £6,516 (37%) under the AskCar estimate of £17,506, our expected asking price for this car from its model, age, mileage and specification, drawing on 4,645 priced Mercedes-Benz C Class adverts on AskCar as of 6 November 2026. Worth asking the dealer why.

AskCar lists 4,899 used Mercedes-Benz C Class from 2,334 UK dealerships, as of 6 November 2026.

Overview

  • Make: Mercedes-Benz
  • Model: C Class
  • Trim: Sport
  • Version: 2.1 Sport Auto Euro 6 5dr
  • Year: 2018
  • Mileage: 10,000 miles
  • Fuel: Diesel
  • Body: Estate, 5 doors, 5 seats
  • Engine: 2.1 litres
  • Gearbox: Automatic
  • Colour: Silver
  • CO2: 114 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz C Class Sport is advertised with 10,000 miles on the clock. Priced at £10,990, this car is advertised £6,516 below the AskCar estimate of £17,506. This is a large price difference, so check the price and vehicle details with the dealer. 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 recorded this advert 162 days ago, and its asking price has since fallen by £500. The latest MOT recorded 80,429 miles, above the advertised mileage. Check this with the dealer. Its MOT is recorded as valid until 29 May 2027. The seller is Sleaford Car Centre, based in Peterborough. 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: £6,516 (37%) under the AskCar estimate of £17,506. 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 162 days.

Price history

AskCar first saw this advert on 28 May 2026 at £11,490. Its asking price is now £10,990, £500 less. The latest price cut was seen on 8 August 2026.

Price changes recorded:

  • 28 May 2026: £11,490
  • 8 August 2026: £10,990

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 May 2027.

It has had 10 MOTs. The latest, on 30 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 80,429 miles. The advert says 10,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 55,200 miles lower than the median mileage of a 2018 Mercedes-Benz C Class on AskCar.

Similar cars

3 other 2018 Mercedes-Benz C Class Sport 2.1 diesel automatic estates are for sale at UK dealers, from £8,500 to £13,500, as of 6 November 2026.

The 3 closest to this car in mileage:

  • 2018 Mercedes-Benz C Class Sport, 2.1 diesel estate, grey. Mileage: 69,000 miles. Price: £11,500, £510 more than this car. Dealer: Raymond Smith Garages in Bedford. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-620a6f8f8dbd
  • 2018 Mercedes-Benz C Class Sport, 2.1 diesel estate, grey. Mileage: 80,000 miles. Price: £13,500, £2,510 more than this car. Dealer: David Brothers Car Sales in Royston. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-5acb2c9430b0
  • 2018 Mercedes-Benz C Class Sport, 2.1 diesel estate, silver. Mileage: 114,000 miles. Price: £8,500, £2,490 less than this car. Dealer: Grouts Motor Company in Maldon. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2018-42c53eb6a408

Browse all Mercedes-Benz C Class cars for sale · 2018 Mercedes-Benz C Class price guide

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Photos

34 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.