2018 BMW 4 Series 3.0 435d M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 3.0 435d M Sport Auto 4WD Euro 6 (s/s) 2dr (309 bhp)
• Year: 2018
• Mileage: 77,533 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 309 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Beige
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 77,533 miles, this 2018 BMW 4 Series M Sport has covered about 14,500 more miles than other 2018 BMW 4 Series cars. The AskCar estimate for this car is £16,469. It is priced at £17,750, which is £1,281 above that estimate. The AskCar estimate uses 1,814 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 53 days ago, and its asking price has since fallen by £200. The government's MOT record matches its advertised mileage. It is for sale at J S Exclusive Motors in Milton Keynes. 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: £1,281 (7%) over the AskCar estimate of £16,469.

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 3.0 diesel engine is typically advertised at £17,500: the median of the 85 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 53 days.

Price history

AskCar first saw this advert on 12 September 2026 at £17,950. Its asking price is now £17,750, £200 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 12 September 2026: £17,950
• 2 November 2026: £17,750

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 17 March 2027.

It failed its MOT on 26 February 2026 (front registration plate does not conform to the specified requirements; rear registration plate does not conform to the specified requirements) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 70,621 miles, which matches the advertised 77,533 miles.

Advertised mileage is about 14,500 miles higher than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

19 other 2018 BMW 4 Series M Sport 3.0 diesel automatic convertibles are for sale at UK dealers, from £12,995 to £20,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 3.0 diesel convertible, grey. Mileage: 78,493 miles. Price: £18,000, £250 more than this car. Dealer: Sytner High Wycombe BMW in High Wycombe. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-2cbd1e9f14e1
• 2018 BMW 4 Series M Sport, 3.0 diesel convertible, black. Mileage: 71,411 miles. Price: £17,990, £240 more than this car. Dealer: Brampton Motor Group in Brampton. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-f907f3b8ca99
• 2018 BMW 4 Series M Sport, 3.0 diesel convertible, blue. Mileage: 70,430 miles. Price: £19,400, £1,650 more than this car. Dealer: Brook Cars Company in Telford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-49388ee41d84

• The nearest: 2018 BMW 4 Series M Sport, 3.0 diesel convertible, grey, 17 miles from this car. Mileage: 55,500 miles. Price: £15,995, £1,755 less than this car. Dealer: Hampton Car Sales in Milton Malsor. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-32cb268e7565