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 (s/s) 2dr (187 bhp)
• Year: 2018
• Mileage: 70,000 miles
• Fuel: Diesel
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 70,000 miles, this 2018 BMW 4 Series M Sport has covered about 7,000 more miles than other 2018 BMW 4 Series cars. The dealer is asking £14,490, which is £708 above the AskCar estimate of £13,782. To work out the AskCar estimate, we analyse UK dealer adverts for 1,814 BMW 4 Series cars across different ages and specifications. Since we first spotted the advert 47 days ago, the asking price has dropped by £509. The government's MOT record matches its advertised mileage. You can find this car at A & S Cars in Bishop's Stortford. 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: £708 (5%) over the AskCar estimate of £13,782.

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 47 days.

Price history

AskCar first saw this advert on 18 September 2026 at £14,999. Its asking price is now £14,490, £509 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 18 September 2026: £14,999
• 3 October 2026: £14,850
• 7 October 2026: £14,500
• 8 October 2026: £14,999
• 13 October 2026: £14,499
• 27 October 2026: £14,290
• 4 November 2026: £14,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 8 April 2027.

It failed its MOT on 9 April 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.

Advisories at the latest test: front chips in windscreen.

Mileage at that test: 67,947 miles, which matches the advertised 70,000 miles.

Advertised mileage is about 7,000 miles higher than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

33 other 2018 BMW 4 Series M Sport 2.0 diesel automatic coupes are for sale at UK dealers, from £10,000 to £17,498, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, black. Mileage: 72,000 miles. Price: £12,995, £1,495 less than this car. Dealer: Goldstone Cars in Kempston. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-39bbe9141e1e
• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 67,907 miles. Price: £15,750, £1,260 more than this car. Dealer: BRM Car Sales Scunthorpe in Scunthorpe. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-7688238ae79a
• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, black. Mileage: 73,531 miles. Price: £14,795, £305 more than this car. Dealer: Global Motors Sales in Launceston. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-778ff76f8368

• The nearest: 2018 BMW 4 Series M Sport, 2.0 diesel coupe, grey, 16 miles from this car. Mileage: 93,787 miles. Price: £11,490, £3,000 less than this car. Dealer: Xenon Automotive in Welwyn Garden City. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-3c5ab9360112