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 4WD Euro 6 (s/s) 2dr (187 bhp)
• Year: 2018
• Mileage: 44,432 miles
• Fuel: Diesel
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Red
• CO2: 125 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 44,432 miles on the clock, this 2018 BMW 4 Series M Sport has done roughly 18,800 fewer miles than a typical 2018 BMW 4 Series. Priced at £17,498, it is advertised £278 above the AskCar estimate of £17,220. To work out the AskCar estimate, we analyse UK dealer adverts for 1,787 BMW 4 Series cars across different ages and specifications. It first appeared in our advert records 30 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Inverness BMW, based in Inverness. 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: £278 (1%) over the AskCar estimate of £17,220.

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 2.0 diesel engine is typically advertised at £14,800: the median of the 112 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 30 days.

Price history

AskCar first saw this advert on 3 October 2026 at £17,498. 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 2 November 2026: valid until 22 October 2027.

It has had 8 MOTs. The latest, on 2 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 44,440 miles, which matches the advertised 44,432 miles.

Advertised mileage is about 18,800 miles lower than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

31 other 2018 BMW 4 Series M Sport 2.0 diesel automatic coupes are for sale at UK dealers, from £10,000 to £16,491, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, grey. Mileage: 46,035 miles. Price: £15,849, £1,649 less than this car. Dealer: Motorpoint Portsmouth in Portsmouth. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-f14af227e913
• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, white. Mileage: 38,990 miles. Price: £14,889, £2,609 less than this car. Dealer: cinch in Reading. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-ff3c411eaf06
• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, silver. Mileage: 55,130 miles. Price: £14,000, £3,498 less than this car. Dealer: Riverside Autos in Stowmarket. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-b1c2e8379467

• The nearest: 2018 BMW 4 Series M Sport, 2.0 diesel coupe, black, 197 miles from this car. Mileage: 75,327 miles. Price: £13,749, £3,749 less than this car. Dealer: Stonebridge Motors North East in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-e948d7fada17