2017 BMW 4 Series 2.0 420d M Sport
Price: £13,389. Fair price: £227 (1%) over the AskCar estimate of £13,162, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,810 priced BMW 4 Series adverts on AskCar as of 10 November 2026.
AskCar lists 1,855 used BMW 4 Series from 1,069 UK dealerships, as of 10 November 2026.
Overview
- Make: BMW
- Model: 4 Series
- Trim: M Sport
- Version: 2.0 420d M Sport Auto RWD Euro 6 2dr (187 bhp)
- Year: 2017
- Mileage: 71,000 miles
- Fuel: Diesel
- Body: Convertible, 2 doors, 4 seats
- Engine: 2.0 litres, 187 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Black
- Emissions standard: Euro 6, ULEZ compliant
About this car
The advertised mileage for this 2017 BMW 4 Series M Sport is 71,000 miles. Its asking price of £13,389 is £227 above the AskCar estimate of £13,162. The AskCar estimate draws on 1,810 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert today. It is for sale at The Car Guys in Dunstable. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 10 November 2026.
The Car Guys is rated 4.2 out of 5 on Google.
Price
Fair price: £227 (1%) over the AskCar estimate of £13,162.
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 1,810 priced BMW 4 Series adverts across different ages and specifications, as of 10 November 2026.
A 2017 BMW 4 Series with the 2.0 diesel engine is typically advertised at £12,400: the median of the 114 for sale on AskCar, as of 10 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: 125 of the 266 first advertised between 12 July 2026 and 7 October 2026.
Price history
AskCar first saw this advert on 10 November 2026 at £13,389. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 1,900 miles lower than the median mileage of a 2017 BMW 4 Series on AskCar.
Similar cars
11 other 2017 BMW 4 Series M Sport 2.0 diesel automatic convertibles are for sale at UK dealers, from £10,750 to £18,989, as of 10 November 2026.
The 3 closest to this car in mileage:
- 2017 BMW 4 Series M Sport, 2.0 diesel convertible, grey. Mileage: 69,800 miles. Price: £14,500, £1,111 more than this car. Dealer: Mota in Caistor. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-787e15ee1c1e
- 2017 BMW 4 Series M Sport, 2.0 diesel convertible, black. Mileage: 53,660 miles. Price: £14,488, £1,099 more than this car. Dealer: Junction 17 Cars Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-5f81af3f1cb3
- 2017 BMW 4 Series M Sport, 2.0 diesel convertible, silver. Mileage: 90,735 miles. Price: £10,750, £2,639 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-e2b2688d05d5
Browse all BMW 4 Series cars for sale · 2017 BMW 4 Series price guide
More like this
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Photos
54 photos of this car are on its AskCar page.
As of 10 November 2026, AskCar lists 591,054 cars and vans from 12,888 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.