2018 BMW 4 Series 2.0 430i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 430i GPF M Sport Auto RWD Euro 6 (s/s) 2dr (249 bhp)
• Year: 2018
• Mileage: 84,855 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 249 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 148 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 84,855 miles on the clock, this 2018 BMW 4 Series M Sport has done roughly 21,800 more miles than a typical 2018 BMW 4 Series. The AskCar estimate for this car is £13,796. It is priced at £14,495, which is £699 above that estimate. The AskCar estimate uses 1,816 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 71 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 Motoring WAY in Abertillery. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £699 (5%) over the AskCar estimate of £13,796.

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 1,816 priced BMW 4 Series adverts across different ages and specifications, as of 8 November 2026.

A 2018 BMW 4 Series with the 2.0 petrol engine is typically advertised at £14,500: the median of the 120 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 71 days.

Price history

AskCar first saw this advert on 29 August 2026 at £15,495. Its asking price is now £14,495, £1,000 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 29 August 2026: £15,495
• 23 October 2026: £14,995
• 3 November 2026: £14,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 3 September 2027.

It has had 9 MOTs. The latest, on 11 August 2026, passed.

Advisories at the latest test: nearside rear oil leak, but not excessive differential seal is leaking.

Mileage at that test: 84,370 miles, which matches the advertised 84,855 miles.

Advertised mileage is about 21,800 miles higher than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

12 other 2018 BMW 4 Series M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £14,489 to £23,995, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 2.0 petrol convertible, white. Mileage: 66,240 miles. Price: £14,995, £500 more than this car. Dealer: ARJ Motors in Addlestone. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-6c0f2b51bcef
• 2018 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 50,616 miles. Price: £15,999, £1,504 more than this car. Dealer: The PR7 Car Company in Chorley. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-ef591eb17927
• 2018 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 50,500 miles. Price: £15,620, £1,125 more than this car. Dealer: Wimbledon Carriage Company in East Horsley. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-deb8aefb9cc2

• The nearest: 2018 BMW 4 Series M Sport, 2.0 petrol convertible, white, 79 miles from this car. Mileage: 37,585 miles. Price: £18,000, £3,505 more than this car. Dealer: The Motoring Centre in Royal Leamington Spa. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-36368f184487