2018 BMW 3 Series 3.0 335d M Sport Shadow Edition

Price: £15,250. Fair price: £1,071 (6%) under the AskCar estimate of £16,321, 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 Shadow Edition
  • Version: 3.0 335d M Sport Shadow Edition Auto 4WD Euro 6 (s/s) 5dr Touring (309 bhp)
  • Year: 2018
  • Mileage: 99,240 miles
  • Fuel: Diesel
  • Body: Estate, 5 doors, 5 seats
  • Engine: 3.0 litres, 309 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Grey
  • CO2: 165 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport Shadow Edition is advertised with 99,240 miles, approximately 27,100 above the typical mileage for its age. Its asking price of £15,250 is £1,071 below the AskCar estimate of £16,321. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 28 days ago, and its asking price has since fallen by £900. Its advertised mileage matches the government's MOT record. It is for sale at Car Planet Barnet in New Southgate. 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: £1,071 (6%) under the AskCar estimate of £16,321.

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 3.0 diesel engine is typically advertised at £18,200: the median of the 68 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 BMW 3 Series has been on sale for at least 28 days.

Price history

AskCar first saw this advert on 8 October 2026 at £16,150. Its asking price is now £15,250, £900 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

  • 8 October 2026: £16,150
  • 22 October 2026: £15,850
  • 28 October 2026: £15,550
  • 4 November 2026: £15,250

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 21 November 2026.

It has had 7 MOTs. The latest, on 30 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 92,796 miles, which matches the advertised 99,240 miles.

Advertised mileage is about 27,100 miles higher than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

12 other 2018 BMW 3 Series M Sport Shadow Edition 3.0 diesel automatic estates are for sale at UK dealers, from £13,999 to £25,890, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2018 BMW 3 Series M Sport Shadow Edition, 3.0 diesel estate, black. Mileage: 102,109 miles. Price: £14,790, £460 less than this car. Dealer: Compact Car Centre in Rowley Regis. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-17dbfdd321c9
  • 2018 BMW 3 Series M Sport Shadow Edition, 3.0 diesel estate, beige. Mileage: 96,000 miles. Price: £16,950, £1,700 more than this car. Dealer: Tudor Prestige in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-9705dd51ae47
  • 2018 BMW 3 Series M Sport Shadow Edition, 3.0 diesel estate, black. Mileage: 95,691 miles. Price: £16,290, £1,040 more than this car. Dealer: Auto Unit in Newport. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-6d7f6b596291
  • The nearest: 2018 BMW 3 Series M Sport Shadow Edition, 3.0 diesel estate, grey, 10 miles from this car. Mileage: 33,000 miles. Price: £25,890, £10,640 more than this car. Dealer: Cars of Essex in Waltham Abbey. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-71abbcf7e874

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

More like this

Photos

43 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.