2018 BMW 4 Series 3.0 440i M Sport

Price: £19,995. Fair price: £706 (3%) over the AskCar estimate of £19,289, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,833 priced BMW 4 Series adverts on AskCar as of 5 November 2026.

AskCar lists 1,879 used BMW 4 Series from 1,081 UK dealerships, as of 5 November 2026.

Overview

  • Make: BMW
  • Model: 4 Series
  • Trim: M Sport
  • Version: 3.0 440i GPF M Sport Auto RWD Euro 6 (s/s) 2dr (322 bhp)
  • Year: 2018
  • Mileage: 74,120 miles
  • Fuel: Petrol
  • Body: Convertible, 2 doors, 4 seats
  • Engine: 3.0 litres, 322 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: Black
  • CO2: 176 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 74,120 miles on the clock, this 2018 BMW 4 Series M Sport has done roughly 11,700 more miles than a typical 2018 BMW 4 Series. Its asking price of £19,995 is £706 above the AskCar estimate of £19,289. The AskCar estimate uses 1,833 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 161 days ago. Its asking price has since fallen by £1,000. The government's MOT record matches its advertised mileage. You can find this car at Fida Motors in Wickford. 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: £706 (3%) over the AskCar estimate of £19,289.

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 1,833 priced BMW 4 Series adverts across different ages and specifications, as of 5 November 2026.

A 2018 BMW 4 Series with the 3.0 petrol engine is typically advertised at £17,500: the median of the 84 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £20,995. Its asking price is now £19,995, £1,000 less. The latest price cut was seen on 2 September 2026.

Price changes recorded:

  • 29 May 2026: £20,995
  • 28 July 2026: £20,795
  • 26 August 2026: £20,495
  • 2 September 2026: £19,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 6 April 2027.

It has had 7 MOTs. The latest, on 6 April 2026, passed.

Advisories at the latest test: offside front play in steering rack inner joint(s); rear brake pad(s) wearing thin both side.

Mileage at that test: 73,719 miles, which matches the advertised 74,120 miles.

Advertised mileage is about 11,700 miles higher than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

6 other 2018 BMW 4 Series M Sport 3.0 petrol automatic convertibles are for sale at UK dealers, from £17,885 to £28,750, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2018 BMW 4 Series M Sport, 3.0 petrol convertible, black. Mileage: 65,269 miles. Price: £19,950, the same price as this car. Dealer: Perrys Milton Keynes Peugeot & Citroen in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-1be2d3cac3fd
  • 2018 BMW 4 Series M Sport, 3.0 petrol convertible, black. Mileage: 61,940 miles. Price: £17,885, £2,110 less than this car. Dealer: Hilton Car Supermarket Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-33b668897b66
  • 2018 BMW 4 Series M Sport, 3.0 petrol convertible, blue. Mileage: 30,000 miles. Price: £26,995, £7,000 more than this car. Dealer: HR Sports and Classics in Warrington. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-0c73f9bfb8c3
  • The nearest: 2018 BMW 4 Series M Sport, 3.0 petrol convertible, blue, 53 miles from this car. Mileage: 29,224 miles. Price: £25,000, £5,005 more than this car. Dealer: Sytner Sunningdale MINI in Bracknell. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-5f2bad03c3a3

Browse all BMW 4 Series cars for sale · 2018 BMW 4 Series price guide

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Photos

67 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.