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: 94,389 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 309 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 165 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 94,389 miles, this 2018 BMW X6 M Sport has covered about 31,200 more miles than other 2018 BMW X6 cars. The dealer is asking £18,490, which is £486 above the AskCar estimate of £18,004. To work out the AskCar estimate, we analyse UK dealer adverts for 547 BMW X6 cars across different ages and specifications. This car was first seen in our listings data today. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Mak Performance Cars in Halifax. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £486 (2%) over the AskCar estimate of £18,004.

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 6 November 2026.

A 2018 BMW X6 with the 3.0 diesel engine is typically advertised at £21,900: the median of the 54 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2018 BMW X6 advertised today. About 3 in 10 of 2018 BMW X6 cars are gone from sale within a month of being advertised: 21 of the 62 first advertised between 14 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £18,490. 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 6 November 2026: valid until 2 September 2027.

It has had 7 MOTs. The latest, on 3 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 93,652 miles, which matches the advertised 94,389 miles.

Advertised mileage is about 31,200 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 6 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, £255 more 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, £1,460 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, £5,505 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, black, 7 miles from this car. Mileage: 62,735 miles. Price: £21,222, £2,732 more than this car. Dealer: Hitchfields in Huddersfield. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-60eaed033b7c