2018 BMW 4 Series Gran Coupe 2.0 420d M Sport

Overview

• Make: BMW
• Model: 4 Series Gran Coupe
• Trim: M Sport
• Version: 2.0 420d M Sport Auto RWD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2018
• Mileage: 45,883 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 126 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series Gran Coupe M Sport has covered 45,883 miles, around 27,800 fewer miles than is typical for its age. Its asking price of £18,000 is £1,122 above the AskCar estimate of £16,878. The AskCar estimate uses 1,174 UK dealer adverts for the BMW 4 Series Gran Coupe, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 65 days ago, and its asking price has since fallen by £1,250. Its recorded MOT is valid until 21 November 2026. The seller is Sytner Swansea MINI, based in Swansea. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,122 (6%) over the AskCar estimate of £16,878.

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 1,174 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 7 November 2026.

A 2018 BMW 4 Series Gran Coupe with the 2.0 diesel engine is typically advertised at £13,500: the median of the 123 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2018 BMW 4 Series Gran Coupe has been on sale for at least 65 days.

Price history

AskCar first saw this advert on 3 September 2026 at £19,250. Its asking price is now £18,000, £1,250 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 3 September 2026: £19,250
• 1 October 2026: £18,750
• 17 October 2026: £18,500
• 29 October 2026: £18,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 21 November 2026.

Advertised mileage is about 27,800 miles lower than the median mileage of a 2018 BMW 4 Series Gran Coupe on AskCar.

Similar cars

46 other 2018 BMW 4 Series Gran Coupe M Sport 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £7,995 to £19,990, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, grey. Mileage: 46,902 miles. Price: £14,495, £3,505 less than this car. Dealer: UK Car Solutions in Bromley. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-39964873437a
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, black. Mileage: 48,000 miles. Price: £15,490, £2,510 less than this car. Dealer: Monarch Motor Company in Redditch. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-56faf49d6e9c
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, white. Mileage: 49,000 miles. Price: £15,975, £2,025 less than this car. Dealer: Nick King Car Sales in Gloucester. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-e0bf07bfd7c2

• The nearest: 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, white, 66 miles from this car. Mileage: 122,091 miles. Price: £9,999, £8,001 less than this car. Dealer: Alisons Automotive Group in Cam. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-3233c5b3d481