2018 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: 2018
• Mileage: 52,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 309 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 165 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 52,000 miles on the clock, this 2018 BMW X6 M Sport has done roughly 11,100 fewer miles than a typical 2018 BMW X6. Its asking price of £23,995 is £331 above the AskCar estimate of £23,664. The AskCar estimate draws on 536 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 9 days ago. Its asking price has since fallen by £500. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at RWD Motor Group in Ossett. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £331 (1%) over the AskCar estimate of £23,664.

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 536 priced BMW X6 adverts across different ages and specifications, as of 2 November 2026.

A 2018 BMW X6 with the 3.0 diesel engine is typically advertised at £22,000: the median of the 52 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW X6 has been on sale for at least 9 days.

Price history

AskCar first saw this advert on 24 October 2026 at £24,495. Its asking price is now £23,995, £500 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 24 October 2026: £24,495
• 27 October 2026: £23,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 16 October 2027.

It has had 7 MOTs. The latest, on 17 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 51,988 miles, which matches the advertised 52,000 miles.

Advertised mileage is about 11,100 miles lower than the median mileage of a 2018 BMW X6 on AskCar.

Similar cars

31 other 2018 BMW X6 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £13,995 to £29,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 51,807 miles. Price: £21,990, £2,005 less than this car. Dealer: East Kilbride Used Car Centre in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-27876e8c967d
• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 52,302 miles. Price: £23,299, £696 less than this car. Dealer: Pine Lodge Cars in Whitchurch. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-b4d127f5d27b
• 2018 BMW X6 M Sport, 3.0 diesel SUV, red. Mileage: 53,450 miles. Price: £22,490, £1,505 less than this car. Dealer: Hanar Cars (UK) in Hoddesdon. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-9c9a936f29b4

• The nearest: 2018 BMW X6 M Sport, 3.0 diesel SUV, white, 8 miles from this car. Mileage: 92,700 miles. Price: £19,995, £4,000 less than this car. Dealer: Diamond Motor House in Leeds. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-fbc64ac61276