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: 43,935 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 309 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series M Sport has covered 43,935 miles, around 19,300 fewer miles than is typical for its age. The dealer is asking £19,990, which is £476 below the AskCar estimate of £20,466. To work out the AskCar estimate, we analyse UK dealer adverts for 1,787 BMW 4 Series cars across different ages and specifications. We first saw this car advertised 84 days ago. Its asking price has since fallen by £1,500. The latest recorded MOT expiry date is 22 August 2026, which has passed. Confirm its status with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Fox's Motor Co in Peterborough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £476 (2%) under the AskCar estimate of £20,466.

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 1,787 priced BMW 4 Series adverts across different ages and specifications, as of 2 November 2026.

A 2018 BMW 4 Series with the 3.0 diesel engine is typically advertised at £17,600: the median of the 85 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 84 days.

Price history

AskCar first saw this advert on 10 August 2026 at £21,490. Its asking price is now £19,990, £1,500 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

• 10 August 2026: £21,490
• 25 August 2026: £21,390
• 3 September 2026: £21,290
• 8 September 2026: £21,190
• 15 September 2026: £20,990
• 28 September 2026: £20,890
• 13 October 2026: £20,790
• 17 October 2026: £19,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 22 August 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 1 August 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 37,789 miles, which matches the advertised 43,935 miles.

Advertised mileage is about 19,300 miles lower than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

18 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 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 3.0 diesel convertible, grey. Mileage: 47,132 miles. Price: £17,570, £2,420 less than this car. Dealer: Evans Halshaw BYD Shrewsbury in Shrewsbury. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-9e89a4930126
• 2018 BMW 4 Series M Sport, 3.0 diesel convertible, red. Mileage: 48,143 miles. Price: £17,495, £2,495 less than this car. Dealer: SG Petch Richmond in Richmond. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-180e268d04ce
• 2018 BMW 4 Series M Sport, 3.0 diesel convertible, grey. Mileage: 36,109 miles. Price: £20,100, £110 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-1a858a76ba39

• The nearest: 2018 BMW 4 Series M Sport, 3.0 diesel convertible, black, 14 miles from this car. Mileage: 71,411 miles. Price: £17,990, £2,000 less than this car. Dealer: Brampton Motor Group in Brampton. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-f907f3b8ca99