2017 BMW X6 3.0 40d M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 40d M Sport Auto 4WD Euro 6 (s/s) 5dr (309 bhp)
• Year: 2017
• Mileage: 45,398 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 309 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 165 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 45,398 miles on the clock, this 2017 BMW X6 M Sport has done roughly 25,600 fewer miles than a typical 2017 BMW X6. The dealer is asking £21,350, which is £2,300 below the AskCar estimate of £23,650. To work out the AskCar estimate, we analyse UK dealer adverts for 547 BMW X6 cars across different ages and specifications. We first saw this car advertised 30 days ago. Its asking price has since fallen by £1,200. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Car Planet Watford in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Good value: £2,300 (9%) under the AskCar estimate of £23,650.

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 547 priced BMW X6 adverts across different ages and specifications, as of 5 November 2026.

A 2017 BMW X6 with the 3.0 diesel engine is typically advertised at £20,000: the median of the 40 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2017 BMW X6 has been on sale for at least 30 days.

Price history

AskCar first saw this advert on 6 October 2026 at £22,550. Its asking price is now £21,350, £1,200 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 6 October 2026: £22,550
• 17 October 2026: £22,250
• 23 October 2026: £21,950
• 30 October 2026: £21,650
• 5 November 2026: £21,350

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 23 June 2027.

It has had 8 MOTs. The latest, on 4 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 41,553 miles, which matches the advertised 45,398 miles.

Advertised mileage is about 25,600 miles lower than the median mileage of a 2017 BMW X6 on AskCar.

Similar cars

34 other 2017 BMW X6 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £13,999 to £23,990, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2017 BMW X6 M Sport, 3.0 diesel SUV, white. Mileage: 47,000 miles. Price: £22,749, £1,399 more than this car. Dealer: Arrow Motor Company in Darlington. AskCar page: https://askcar.co.uk/car/bmw-x6-2017-4a0f5e027485
• 2017 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 47,125 miles. Price: £22,995, £1,645 more than this car. Dealer: ARJ Motors in Addlestone. AskCar page: https://askcar.co.uk/car/bmw-x6-2017-90879cd633df
• 2017 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 41,099 miles. Price: £23,150, £1,800 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-x6-2017-5e624efc2505