2018 BMW X6 3.0 40d M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 xDrive40d M Sport Auto 4WD Euro 6 5dr Step (308 bhp)
• Year: 2018
• Mileage: 92,700 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 308 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 183 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X6 M Sport is advertised with 92,700 miles, approximately 29,500 above the typical mileage for its age. The AskCar estimate for this car is £19,248. It is priced at £19,995, which is £747 above that estimate. The AskCar estimate draws on 547 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 41 days. Its advertised mileage matches the government's MOT record. It is advertised by Diamond Motor House in Leeds (Leeds). 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

Fair price: £747 (3%) over the AskCar estimate of £19,248.

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 2018 BMW X6 with the 3.0 diesel engine is typically advertised at £22,000: the median of the 53 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 BMW X6 has been on sale for at least 41 days.

Price history

AskCar first saw this advert on 25 September 2026 at £19,995. 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 5 November 2026: valid until 26 November 2026.

It has had 5 MOTs. The latest, on 14 November 2025, passed.

Advisories at the latest test: front brake pad(s) wearing thin; rear brake pad(s) wearing thin; nearside rear tyre worn close to legal limit/worn on edge; and 1 more.

Mileage at that test: 88,352 miles, which matches the advertised 92,700 miles.

Advertised mileage is about 29,500 miles higher than the median mileage of a 2018 BMW X6 on AskCar.

Similar cars

34 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 5 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 85,102 miles. Price: £18,745, £1,250 less than this car. Dealer: Georgesons Car Sales in Liverpool. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-9c58d000e21c
• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 85,000 miles. Price: £19,950, the same price as this car. Dealer: Best4U Motors in Brentwood. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-91d61790272d
• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 85,000 miles. Price: £23,995, £4,000 more than this car. Dealer: Firstgear Cars in Hoddesdon. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-73570c60d81b

• The nearest: 2018 BMW X6 M Sport, 3.0 diesel SUV, white, 8 miles from this car. Mileage: 52,000 miles. Price: £23,995, £4,000 more than this car. Dealer: RWD Motor Group in Ossett. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-13659c5f22a7