2018 BMW 4 Series 3.0 430d M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 3.0 430d M Sport Auto RWD Euro 6 (s/s) 2dr (254 bhp)
• Year: 2018
• Mileage: 86,195 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 254 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 86,195 miles, this 2018 BMW 4 Series M Sport has covered about 23,200 more miles than other 2018 BMW 4 Series cars. Its asking price of £14,889 is £1,167 above the AskCar estimate of £13,722. The AskCar estimate draws on 1,814 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 85 days ago. Our latest MOT record expired on 2 September 2026. Check the current position with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Herts And Essex Motor Company in Hoddesdon. 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

Above the going rate: £1,167 (8%) over the AskCar estimate of £13,722.

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 85 days.

Price history

AskCar first saw this advert on 11 August 2026 at £14,889. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 2 September 2026; ask the dealer for the current MOT.

It has had 7 MOTs. The latest, on 3 September 2025, passed.

Advisories at the latest test: rear tyers getting low.

Mileage at that test: 75,152 miles, which matches the advertised 86,195 miles.

Advertised mileage is about 23,200 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, £3,111 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, beige. Mileage: 77,533 miles. Price: £17,750, £2,861 more than this car. Dealer: J S Exclusive Motors in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-44fd24ea924f
• 2018 BMW 4 Series M Sport, 3.0 diesel convertible, black. Mileage: 71,411 miles. Price: £17,990, £3,101 more than this car. Dealer: Brampton Motor Group in Brampton. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-f907f3b8ca99

• The nearest: 2018 BMW 4 Series M Sport, 3.0 diesel convertible, blue, 13 miles from this car. Mileage: 65,729 miles. Price: £20,995, £6,106 more than this car. Dealer: Sytner Stevenage BMW in Stevenage. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-d5bc702743e0