2018 BMW 4 Series 2.0 420d M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420d M Sport Auto RWD Euro 6 2dr (Professional Media) (187 bhp)
• Year: 2018
• Mileage: 60,154 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 60,154 miles, this 2018 BMW 4 Series M Sport has covered about 2,800 fewer miles than other 2018 BMW 4 Series cars. The dealer is asking £14,999, which is £598 above the AskCar estimate of £14,401. To work out the AskCar estimate, we analyse UK dealer adverts for 1,814 BMW 4 Series cars across different ages and specifications. We first recorded this advert 9 days ago, and its asking price has since fallen by £300. The government's MOT record matches its advertised mileage. You can find this car at cinch Corby in North Northamptonshire. 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: £598 (4%) over the AskCar estimate of £14,401.

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 1,814 priced BMW 4 Series adverts across different ages and specifications, as of 4 November 2026.

A 2018 BMW 4 Series with the 2.0 diesel engine is typically advertised at £14,500: the median of the 112 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 9 days.

Price history

AskCar first saw this advert on 26 October 2026 at £15,299. Its asking price is now £14,999, £300 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 26 October 2026: £15,299
• 27 October 2026: £14,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 16 October 2027.

It has had 8 MOTs. The latest, on 17 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 60,151 miles, which matches the advertised 60,154 miles.

Advertised mileage is about 2,800 miles lower than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

11 other 2018 BMW 4 Series M Sport 2.0 diesel automatic convertibles are for sale at UK dealers, from £13,490 to £17,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 2.0 diesel convertible, black. Mileage: 60,000 miles. Price: £15,995, £996 more than this car. Dealer: Echelon Motors in Bournemouth. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-b00571e4b59b
• 2018 BMW 4 Series M Sport, 2.0 diesel convertible, black. Mileage: 63,918 miles. Price: £13,490, £1,509 less than this car. Dealer: Driven Car Sales in Stockton-on-Tees. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-b0f30e957646
• 2018 BMW 4 Series M Sport, 2.0 diesel convertible, red. Mileage: 49,648 miles. Price: £16,495, £1,496 more than this car. Dealer: Motoring WAY in Abertillery. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-53bb1b8dd3c3

• The nearest: 2018 BMW 4 Series M Sport, 2.0 diesel convertible, blue, 14 miles from this car. Mileage: 33,822 miles. Price: £17,495, £2,496 more than this car. Dealer: Sycamore Stamford in Stamford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-6c3044b519ae