2017 BMW 4 Series 2.0 420d M Sport
Price: £11,688. Fair price: £525 (4%) under the AskCar estimate of £12,213, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,787 priced BMW 4 Series adverts on AskCar as of 2 November 2026.
AskCar lists 1,835 used BMW 4 Series from 1,064 UK dealerships, as of 2 November 2026.
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: 78,945 miles
- Fuel: Diesel
- Body: Convertible, 2 doors, 4 seats
- Engine: 2.0 litres, 187 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Blue
- CO2: 124 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 78,945 miles, this 2017 BMW 4 Series M Sport has covered about 5,800 more miles than other 2017 BMW 4 Series cars. The AskCar estimate for this car is £12,213. It is priced at £11,688, which is £525 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,787 BMW 4 Series cars across different ages and specifications. We first recorded this car for sale 13 days ago. Its advertised mileage matches the government's MOT record. The seller is Junction 17 Cars Limited t/a Junction 17 Cars (Grantham), based in Grantham. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Fair price: £525 (4%) under the AskCar estimate of £12,213.
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 1,787 priced BMW 4 Series adverts across different ages and specifications, as of 2 November 2026.
A 2017 BMW 4 Series with the 2.0 diesel engine is typically advertised at £12,500: the median of the 117 for sale on AskCar, as of 2 November 2026.
Time on sale
This 2017 BMW 4 Series has been on sale for at least 13 days.
Price history
AskCar first saw this advert on 20 October 2026 at £11,688. 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 2 November 2026: valid until 9 March 2027.
It has had 8 MOTs. The latest, on 10 March 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 74,944 miles, which matches the advertised 78,945 miles.
Advertised mileage is about 5,800 miles higher than the median mileage of a 2017 BMW 4 Series on AskCar.
Similar cars
9 other 2017 BMW 4 Series M Sport 2.0 diesel automatic convertibles are for sale at UK dealers, from £10,850 to £17,495, as of 2 November 2026.
The 3 closest to this car in mileage:
- 2017 BMW 4 Series M Sport, 2.0 diesel convertible, grey. Mileage: 73,113 miles. Price: £11,800, £112 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-598f690b5b23
- 2017 BMW 4 Series M Sport, 2.0 diesel convertible, grey. Mileage: 69,800 miles. Price: £14,500, £2,812 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, silver. Mileage: 90,735 miles. Price: £10,850, £838 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
- Used BMW 4 Series M Sport prices
- Used BMW 4 Series for sale under £15,000
- Used diesel BMW 4 Series for sale
- Used BMW 4 Series for sale near Grantham
Photos
20 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.