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: 44,000 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

This 2018 BMW X6 M Sport has covered 44,000 miles, around 19,100 fewer miles than is typical for its age. Priced at £23,489, it is advertised £875 below the AskCar estimate of £24,364. The AskCar estimate uses UK dealer asking prices, including 547 BMW X6 adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records 1 day ago. Its advertised mileage matches the government's MOT record. It is advertised by Emaari Automotive in Croydon. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £875 (3%) under the AskCar estimate of £24,364.

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 4 November 2026.

A 2018 BMW X6 with the 3.0 diesel engine is typically advertised at £22,000: the median of the 54 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2018 BMW X6 advertised 1 day ago. About 3 in 10 of 2018 BMW X6 cars are gone from sale within a month of being advertised: 20 of the 60 first advertised between 14 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £23,489. 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 4 November 2026: valid until 29 January 2027.

It has had 7 MOTs. The latest, on 30 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 39,689 miles, which matches the advertised 44,000 miles.

Advertised mileage is about 19,100 miles lower than the median mileage of a 2018 BMW X6 on AskCar.

Similar cars

33 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 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 46,036 miles. Price: £23,190, £299 less than this car. Dealer: Stratstone BMW Bury St Edmunds in Bury St Edmunds. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-3920976aec9a
• 2018 BMW X6 M Sport, 3.0 diesel SUV, white. Mileage: 37,000 miles. Price: £29,995, £6,506 more than this car. Dealer: Storm Commercials in Barnsley. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-68a679d34191
• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 51,807 miles. Price: £21,990, £1,499 less than this car. Dealer: East Kilbride Used Car Centre in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-27876e8c967d

• The nearest: 2018 BMW X6 M Sport, 3.0 diesel SUV, white, 15 miles from this car. Mileage: 66,190 miles. Price: £22,850, £639 less than this car. Dealer: ARJ Motors in Addlestone. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-10dd6d8ecc6c