2018 BMW X6 3.0 40d M Sport Edition

Overview

• Make: BMW
• Model: X6
• Trim: M Sport Edition
• Version: 3.0 40d M Sport Edition Auto 4WD Euro 6 (s/s) 5dr (309 bhp)
• Year: 2018
• Mileage: 84,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 309 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 183 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X6 M Sport Edition is advertised with 84,000 miles, approximately 20,800 above the typical mileage for its age. Its asking price of £17,450 is £2,904 below the AskCar estimate of £20,354. The AskCar estimate draws on 547 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 67 days ago, and its asking price has since fallen by £2,500. Our records show an MOT expiry date of 13 July 2026, which has passed. Ask the dealer for an update. We checked its advertised mileage against the government's MOT record, and they match. The seller is The Car Shop Bedford, based in Bedford. 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

Good value: £2,904 (14%) under the AskCar estimate of £20,354.

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 67 days.

Price history

AskCar first saw this advert on 30 August 2026 at £19,950. Its asking price is now £17,450, £2,500 less. The latest price cut was seen on 5 October 2026.

Price changes recorded:

• 30 August 2026: £19,950
• 27 September 2026: £18,450
• 5 October 2026: £17,450

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: the latest record we hold ran out on 13 July 2026; ask the dealer for the current MOT.

It has had 7 MOTs. The latest, on 9 July 2025, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge; offside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 73,967 miles, which matches the advertised 84,000 miles.

Advertised mileage is about 20,800 miles higher than the median mileage of a 2018 BMW X6 on AskCar.

Similar cars

11 other 2018 BMW X6 M Sport Edition 3.0 diesel automatic SUVs are for sale at UK dealers, from £19,490 to £29,950, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X6 M Sport Edition, 3.0 diesel SUV, blue. Mileage: 72,227 miles. Price: £19,995, £2,545 more than this car. Dealer: Lloyd Select Newcastle in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-cda76844c593
• 2018 BMW X6 M Sport Edition, 3.0 diesel SUV, black. Mileage: 68,800 miles. Price: £21,790, £4,340 more than this car. Dealer: Hanar Cars (UK) in Hoddesdon. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-89376a281481
• 2018 BMW X6 M Sport Edition, 3.0 diesel SUV, blue. Mileage: 100,751 miles. Price: £19,490, £2,040 more than this car. Dealer: CMC Autos in Darlington. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-70c03371df9a

• The nearest: 2018 BMW X6 M Sport Edition, 3.0 diesel SUV, white, 8 miles from this car. Mileage: 60,769 miles. Price: £22,448, £4,998 more than this car. Dealer: Trade Drive Motors in Bedford. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-cd9abe2b9a70