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 Euro 6 (s/s) 2dr (187 bhp)
• Year: 2018
• Mileage: 91,462 miles
• Fuel: Diesel
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Colour: Black
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series M Sport is advertised with 91,462 miles, approximately 29,000 above the typical mileage for its age. The dealer is asking £11,695, which is £702 below the AskCar estimate of £12,397. To work out the AskCar estimate, we analyse UK dealer adverts for 1,833 BMW 4 Series cars across different ages and specifications. We first recorded this advert 40 days ago, and its asking price has since fallen by £2,049. Its advertised mileage matches the government's MOT record. You can find this car at Greenlight in Blackburn. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £702 (5%) under the AskCar estimate of £12,397.

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 1,833 priced BMW 4 Series adverts across different ages and specifications, as of 5 November 2026.

A 2018 BMW 4 Series with the 2.0 diesel engine is typically advertised at £14,500: the median of the 117 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 26 September 2026 at £13,744. Its asking price is now £11,695, £2,049 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 26 September 2026: £13,744
• 4 November 2026: £11,695

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 13 June 2027.

It has had 6 MOTs. The latest, on 3 June 2026, passed.

Advisories at the latest test: nearside front brake disc worn, pitted or scored, but not seriously weakened; offside front brake disc worn, pitted or scored, but not seriously weakened; nearside rear brake disc worn, pitted or scored, but not seriously weakened; and 3 more.

Mileage at that test: 88,608 miles, which matches the advertised 91,462 miles.

Advertised mileage is about 29,000 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 5 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 91,000 miles. Price: £12,995, £1,300 more than this car. Dealer: Money for Motors North East in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-8094dc9b66ff
• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, grey. Mileage: 93,787 miles. Price: £11,490, £205 less than this car. Dealer: Xenon Automotive in Welwyn Garden City. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-3c5ab9360112
• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, white. Mileage: 88,323 miles. Price: £12,490, £795 more than this car. Dealer: Central Car Sales in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-de8eadb9bbec

• The nearest: 2018 BMW 4 Series M Sport, 2.0 diesel coupe, black, 38 miles from this car. Mileage: 82,200 miles. Price: £13,495, £1,800 more than this car. Dealer: Precious Metal Prestige Motor Group in Wakefield. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-391c64ea6ce7