2017 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 (s/s) 2dr (187 bhp)
• Year: 2017
• Mileage: 9,000 miles
• Fuel: Diesel
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2017 BMW 4 Series M Sport has covered 9,000 miles, around 62,700 fewer miles than is typical for its age. Priced at £18,989, it is advertised £611 above the AskCar estimate of £18,378. The AskCar estimate draws on 1,825 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. The government's MOT record matches its advertised mileage. You can find this car at Blackstone Motors in White City. 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: £611 (3%) over the AskCar estimate of £18,378.

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 1,825 priced BMW 4 Series adverts across different ages and specifications, as of 7 November 2026.

A 2017 BMW 4 Series with the 2.0 diesel engine is typically advertised at £12,500: the median of the 114 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2017 BMW 4 Series advertised today. About half of 2017 BMW 4 Series cars are gone from sale within a month of being advertised: 120 of the 257 first advertised between 12 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £18,989. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 28 June 2027.

It has had 9 MOTs. The latest, on 27 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 9,001 miles, which matches the advertised 9,000 miles.

Advertised mileage is about 62,700 miles lower than the median mileage of a 2017 BMW 4 Series on AskCar.

Similar cars

10 other 2017 BMW 4 Series M Sport 2.0 diesel automatic convertibles are for sale at UK dealers, from £10,750 to £17,495, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2017 BMW 4 Series M Sport, 2.0 diesel convertible, blue. Mileage: 30,854 miles. Price: £17,000, £1,989 less than this car. Dealer: Junction 17 Cars (Rugby) in Rugby. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-27a7376e57b1
• 2017 BMW 4 Series M Sport, 2.0 diesel convertible, black. Mileage: 33,887 miles. Price: £16,800, £2,189 less than this car. Dealer: DP Cars in Torquay. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-0eea39a464f1
• 2017 BMW 4 Series M Sport, 2.0 diesel convertible, blue. Mileage: 34,200 miles. Price: £17,495, £1,494 less than this car. Dealer: Grayswood Cars in Haslemere. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-d49198f0376d

• The nearest: 2017 BMW 4 Series M Sport, 2.0 diesel convertible, silver, 8 miles from this car. Mileage: 90,735 miles. Price: £10,750, £8,239 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-e2b2688d05d5