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: 84,610 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

This 2018 BMW X6 M Sport has covered 84,610 miles, around 21,500 more miles than is typical for its age. Priced at £19,850, it is advertised £412 above the AskCar estimate of £19,438. To work out the AskCar estimate, we analyse UK dealer adverts for 536 BMW X6 cars across different ages and specifications. The asking price is now £45 lower than when we first recorded the advert 6 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Parkside Motors in Edgware. 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: £412 (2%) over the AskCar estimate of £19,438.

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

AskCar first saw this 2018 BMW X6 advertised 6 days ago. About 3 in 10 of 2018 BMW X6 cars are gone from sale within a month of being advertised: 20 of the 58 first advertised between 14 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 27 October 2026 at £19,895. Its asking price is now £19,850, £45 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 27 October 2026: £19,895
• 2 November 2026: £19,850

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 25 July 2027.

It has had 6 MOTs. The latest, on 11 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 83,440 miles, which matches the advertised 84,610 miles.

Advertised mileage is about 21,500 miles higher 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: 85,000 miles. Price: £19,950, £100 more than 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, £4,145 more than this car. Dealer: Firstgear Cars in Hoddesdon. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-73570c60d81b
• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 85,086 miles. Price: £18,745, £1,105 less than this car. Dealer: Georgesons Car Sales in Liverpool. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-9c58d000e21c

• The nearest: 2018 BMW X6 M Sport, 3.0 diesel SUV, white, 8 miles from this car. Mileage: 54,646 miles. Price: £21,200, £1,350 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-e6d8a8d288d7