2018 BMW 3 Series 2.0 320d M Sport

Price: £11,995. Fair price: £311 (2%) under the AskCar estimate of £12,306, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,897 priced BMW 3 Series adverts on AskCar as of 5 November 2026.

AskCar lists 7,194 used BMW 3 Series from 2,714 UK dealerships, as of 5 November 2026.

Overview

  • Make: BMW
  • Model: 3 Series
  • Trim: M Sport
  • Version: 2.0 320d M Sport Auto 4WD Euro 6 (s/s) 4dr (187 bhp)
  • Year: 2018
  • Mileage: 86,000 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Silver
  • CO2: 137 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 86,000 miles, this 2018 BMW 3 Series M Sport has covered about 13,800 more miles than other 2018 BMW 3 Series cars. Its asking price of £11,995 is £311 below the AskCar estimate of £12,306. The AskCar estimate uses UK dealer asking prices, including 6,897 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 50 days ago, the asking price has dropped by £500. The government's MOT record matches its advertised mileage. It is advertised by KF Cars in Hamilton. 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: £311 (2%) under the AskCar estimate of £12,306.

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 6,897 priced BMW 3 Series adverts across different ages and specifications, as of 5 November 2026.

A 2018 BMW 3 Series with the 2.0 diesel engine is typically advertised at £12,500: the median of the 292 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 BMW 3 Series has been on sale for at least 50 days.

Price history

AskCar first saw this advert on 16 September 2026 at £12,495. Its asking price is now £11,995, £500 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

  • 16 September 2026: £12,495
  • 23 October 2026: £11,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 1 March 2027.

It has had 6 MOTs. The latest, on 2 March 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.

Mileage at that test: 81,442 miles, which matches the advertised 86,000 miles.

Advertised mileage is about 13,800 miles higher than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

44 other 2018 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £6,990 to £17,500, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2018 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 87,000 miles. Price: £13,995, £2,000 more than this car. Dealer: Ilex Car Sales in Limavady. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-bb2d3b8eadd8
  • 2018 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 84,033 miles. Price: £12,450, £455 more than this car. Dealer: Kent Vehicles in Herne Common. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-e480f045f0a8
  • 2018 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 83,407 miles. Price: £11,500, £495 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-a87a5a6c200b
  • The nearest: 2018 BMW 3 Series M Sport, 2.0 diesel saloon, grey, 110 miles from this car. Mileage: 120,000 miles. Price: £11,895, £100 less than this car. Dealer: Paul Blaney Motors in Belfast. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-447b4d0408a2

Browse all BMW 3 Series cars for sale · 2018 BMW 3 Series price guide

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Photos

16 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.