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: 60,622 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

This 2018 BMW X6 M Sport is advertised with 60,622 miles, approximately 2,500 below the typical mileage for its age. Its asking price of £21,990 is £709 below the AskCar estimate of £22,699. The AskCar estimate uses UK dealer asking prices, including 536 BMW X6 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 73 days ago. Its asking price has since fallen by £1,708. Our latest MOT record expired on 1 October 2026. Check the current position with the dealer. The government's MOT record matches its advertised mileage. It is for sale at Car City UK Catterick in Catterick Garrison. 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: £709 (3%) under the AskCar estimate of £22,699.

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 73 days.

Price history

AskCar first saw this advert on 21 August 2026 at £23,698. Its asking price is now £21,990, £1,708 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 21 August 2026: £23,698
• 27 August 2026: £22,990
• 22 September 2026: £22,569
• 5 October 2026: £22,490
• 1 November 2026: £21,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 1 October 2026; ask the dealer for the current MOT.

It has had 7 MOTs. The latest, on 17 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 57,627 miles, which matches the advertised 60,622 miles.

Advertised mileage is about 2,500 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, white. Mileage: 60,035 miles. Price: £20,985, £1,005 less than this car. Dealer: Grant Specialist Cars in Redditch. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-d9b0591827c9
• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 61,549 miles. Price: £22,000, the same price as this car. Dealer: Hawco Group in Perth. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-afb53562b05d
• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 62,735 miles. Price: £21,222, £768 less than this car. Dealer: Hitchfields in Huddersfield. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-60eaed033b7c

• The nearest: 2018 BMW X6 M Sport, 3.0 diesel SUV, white, 40 miles from this car. Mileage: 92,700 miles. Price: £19,995, £1,995 less than this car. Dealer: Diamond Motor House in Leeds. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-fbc64ac61276