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: 70,700 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• 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 70,700 miles, approximately 2,800 below the typical mileage for its age. The AskCar estimate for this car is £14,457. It is priced at £13,199, which is £1,258 below that estimate. The AskCar estimate draws on 1,169 BMW 4 Series Gran Coupe adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 162 days ago. Its asking price has since fallen by £800. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Swap Motors in Egham. 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: £1,258 (8%) under the AskCar estimate of £14,457.

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 162 days.

Price history

AskCar first saw this advert on 30 May 2026 at £13,999. Its asking price is now £13,199, £800 less. The latest price cut was seen on 16 October 2026.

Price changes recorded:

• 31 May 2026: £13,999
• 16 June 2026: £13,899
• 2 August 2026: £13,499
• 16 October 2026: £13,199

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 11 May 2027.

It has had 7 MOTs. The latest, on 12 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 69,734 miles, which matches the advertised 70,700 miles.

Advertised mileage is about 2,800 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, silver. Mileage: 70,910 miles. Price: £14,999, £1,800 more than this car. Dealer: Jack Reid Cars in Carrickfergus. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-eff6dc64e1b0
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, grey. Mileage: 71,000 miles. Price: £14,799, £1,600 more than this car. Dealer: AB Car Sales in Gunnislake. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-973585b8e131
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, grey. Mileage: 71,000 miles. Price: £15,499, £2,300 more than this car. Dealer: Anslow Autos in Burton upon Trent. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-76fd7927ee30

• The nearest: 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, white, 23 miles from this car. Mileage: 62,000 miles. Price: £13,995, £796 more than this car. Dealer: RJ Cars Horley in Horley. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-47232a978de7