2018 BMW 3 Series 2.0 320d M Sport

Price: £11,990. Fair price: £388 (3%) under the AskCar estimate of £12,378, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,862 priced BMW 3 Series adverts on AskCar as of 4 November 2026.

AskCar lists 7,147 used BMW 3 Series from 2,707 UK dealerships, as of 4 November 2026.

Overview

  • Make: BMW
  • Model: 3 Series
  • Trim: M Sport
  • Version: 2.0 320d M Sport Auto RWD Euro 6 (s/s) 4dr (187 bhp)
  • Year: 2018
  • Mileage: 82,000 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: Black
  • CO2: 116 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport has covered 82,000 miles, around 9,400 more miles than is typical for its age. Priced at £11,990, it is advertised £388 below the AskCar estimate of £12,378. The AskCar estimate draws on 6,862 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 8 days. Its advertised mileage matches the government's MOT record. It is advertised by Auto Venue in Newport. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £388 (3%) under the AskCar estimate of £12,378.

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 6,862 priced BMW 3 Series adverts across different ages and specifications, as of 4 November 2026.

A 2018 BMW 3 Series with the 2.0 diesel engine is typically advertised at £12,500: the median of the 286 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 BMW 3 Series has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 27 October 2026 at £11,990. 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 4 November 2026: valid until 12 February 2027.

It failed its MOT on 12 February 2026 (rear parking brake operation is causing the vehicle to swerve to the offside) and passed 1 day later, on 13 February 2026.

There were no advisories at the latest test.

Mileage at that test: 73,300 miles, which matches the advertised 82,000 miles.

Advertised mileage is about 9,400 miles higher than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

43 other 2018 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £6,990 to £17,800, as of 4 November 2026.

The 3 closest to this car in mileage:

  • 2018 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 83,000 miles. Price: £12,495, £505 more than this car. Dealer: Sandhaven Car Sales in Shotton Colliery. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-1e21d014dd4f
  • 2018 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 83,407 miles. Price: £11,500, £490 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-a87a5a6c200b
  • 2018 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 84,033 miles. Price: £12,450, £460 more than this car. Dealer: Kent Vehicles in Herne Common. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-e480f045f0a8
  • The nearest: 2018 BMW 3 Series M Sport, 2.0 diesel saloon, black, 20 miles from this car. Mileage: 68,195 miles. Price: £13,999, £2,009 more than this car. Dealer: Empressive Motor Company in Merthyr Tydfil. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-3d9f3c487946

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

More like this

Photos

32 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.