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 2dr (Professional Media) (187 bhp)
• Year: 2018
• Mileage: 38,990 miles
• Fuel: Diesel
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 149 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series M Sport is advertised with 38,990 miles, approximately 24,000 below the typical mileage for its age. The dealer is asking £14,790, which is £1,487 below the AskCar estimate of £16,277. To work out the AskCar estimate, we analyse UK dealer adverts for 1,826 BMW 4 Series cars across different ages and specifications. We first saw this car advertised 95 days ago. Its asking price has since fallen by £2,510. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall SEAT Reading, based in Reading. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Good value: £1,487 (9%) under the AskCar estimate of £16,277.

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 1,826 priced BMW 4 Series adverts across different ages and specifications, as of 6 November 2026.

A 2018 BMW 4 Series with the 2.0 diesel engine is typically advertised at £14,500: the median of the 116 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 95 days.

Price history

AskCar first saw this advert on 3 August 2026 at £17,300. Its asking price is now £14,790, £2,510 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 3 August 2026: £17,300
• 5 August 2026: £17,100
• 21 August 2026: £17,000
• 28 August 2026: £17,100
• 2 September 2026: £16,790
• 5 September 2026: £16,545
• 8 September 2026: £16,490
• 13 September 2026: £16,290
• 23 September 2026: £16,000
• 29 September 2026: £15,990
• 7 October 2026: £15,790
• 13 October 2026: £15,490
• 16 October 2026: £14,990
• 22 October 2026: £14,950
• 29 October 2026: £14,790

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 19 December 2026.

It has had 5 MOTs. The latest, on 8 December 2025, passed.

Advisories at the latest test: front brake disc worn, pitted or scored, but not seriously weakened both sides; rear brake disc worn, pitted or scored, but not seriously weakened both sides; front tyre worn close to legal limit/worn on edge both sides.

Mileage at that test: 35,843 miles, which matches the advertised 38,990 miles.

Advertised mileage is about 24,000 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 6 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, £2,708 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, grey. Mileage: 46,035 miles. Price: £15,549, £759 more 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, black. Mileage: 28,130 miles. Price: £17,988, £3,198 more than this car. Dealer: Junction 17 Cars Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-0358fe395c6f

• The nearest: 2018 BMW 4 Series M Sport, 2.0 diesel coupe, blue, 14 miles from this car. Mileage: 63,000 miles. Price: £14,950, £160 more than this car. Dealer: Intense Motors in High Wycombe. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-732e34c9c91e