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: 46,902 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 126 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series Gran Coupe M Sport is advertised with 46,902 miles, approximately 26,600 below the typical mileage for its age. The AskCar estimate for this car is £16,850. It is priced at £14,495, which is £2,355 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,169 BMW 4 Series Gran Coupe cars across different ages and specifications. Since we first spotted the advert 164 days ago, the asking price has dropped by £1,500. The government's MOT record matches its advertised mileage. It is advertised by UK Car Solutions in Westerham. 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: £2,355 (13%) under the AskCar estimate of £16,850.

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 1,169 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 8 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 119 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2018 BMW 4 Series Gran Coupe has been on sale for at least 164 days.

Price history

AskCar first saw this advert on 28 May 2026 at £15,995. Its asking price is now £14,495, £1,500 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 28 May 2026: £15,995
• 13 July 2026: £15,495
• 29 July 2026: £15,295
• 10 August 2026: £14,995
• 10 October 2026: £15,000
• 23 October 2026: £14,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 29 November 2026.

It failed its MOT on 7 November 2025 (windscreen washer provides insufficient washer liquid) and passed later the same day.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge; offside front tyre worn close to legal limit/worn on edge; offside rear nail in tyre.

Mileage at that test: 45,340 miles, which matches the advertised 46,902 miles.

Advertised mileage is about 26,600 miles lower than the median mileage of a 2018 BMW 4 Series Gran Coupe on AskCar.

Similar cars

44 other 2018 BMW 4 Series Gran Coupe M Sport 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £7,995 to £19,490, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, blue. Mileage: 45,883 miles. Price: £18,000, £3,505 more than this car. Dealer: Sytner Swansea MINI in Swansea. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-2bb7dafb6d4a
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, white. Mileage: 49,000 miles. Price: £15,975, £1,480 more than this car. Dealer: Nick King Car Sales in Gloucester. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-e0bf07bfd7c2
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, black. Mileage: 50,500 miles. Price: £15,890, £1,395 more than this car. Dealer: Bellevue Garage in Dunstable. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-9eae422dde44

• The nearest: 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, white, 2 miles from this car. Mileage: 66,812 miles. Price: £14,990, £495 more than this car. Dealer: Wolfe Westerham Garage in Westerham. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-a9f2d613ba93