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: 46,035 miles
• Fuel: Diesel
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 125 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series M Sport is advertised with 46,035 miles, approximately 17,000 below the typical mileage for its age. Priced at £15,549, it is advertised £1,517 below the AskCar estimate of £17,066. The AskCar estimate draws on 1,816 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 57 days ago. Its asking price has since fallen by £1,750. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Motorpoint Portsmouth, based in Portsmouth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Good value: £1,517 (8%) under the AskCar estimate of £17,066.

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 1,816 priced BMW 4 Series adverts across different ages and specifications, as of 8 November 2026.

A 2018 BMW 4 Series with the 2.0 diesel engine is typically advertised at £14,500: the median of the 120 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 57 days.

Price history

AskCar first saw this advert on 12 September 2026 at £17,299. Its asking price is now £15,549, £1,750 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 12 September 2026: £17,299
• 15 September 2026: £16,649
• 22 September 2026: £16,499
• 29 September 2026: £16,399
• 6 October 2026: £16,149
• 13 October 2026: £15,949
• 28 October 2026: £15,849
• 4 November 2026: £15,549

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 30 December 2026.

It has had 5 MOTs. The latest, on 10 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 41,001 miles, which matches the advertised 46,035 miles.

Advertised mileage is about 17,000 miles lower than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

35 other 2018 BMW 4 Series M Sport 2.0 diesel automatic coupes are for sale at UK dealers, from £10,000 to £17,988, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, red. Mileage: 44,432 miles. Price: £17,498, £1,949 more than this car. Dealer: Arnold Clark Inverness BMW in Inverness. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-067026b0aee2
• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, white. Mileage: 38,990 miles. Price: £14,790, £759 less than this car. Dealer: Marshall SEAT Reading in Reading. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-292a570d5ce3
• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, silver. Mileage: 55,130 miles. Price: £14,000, £1,549 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, white, 17 miles from this car. Mileage: 62,441 miles. Price: £15,990, £441 more than this car. Dealer: Partridge BMW in Eastleigh. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-7c15e6cde621