2018 BMW X6 3.0 40d M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 xDrive40d M Sport Auto 4WD Euro 6 5dr Step (308 bhp)
• Year: 2018
• Mileage: 37,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 308 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 183 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2018 BMW X6 M Sport is 37,000 miles. Priced at £29,995, it is advertised £3,386 above the AskCar estimate of £26,609. The AskCar estimate draws on 536 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 107 days. Ask the dealer why the advert shows fewer miles than the 47,528 recorded at the latest MOT. The latest recorded MOT expiry date is 16 July 2026, which has passed. Confirm its status with the dealer. You can find this car at Storm Commercials in Barnsley. 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

Above the going rate: £3,386 (12%) over the AskCar estimate of £26,609.

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 107 days.

Price history

AskCar first saw this advert on 18 July 2026 at £29,995. 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 2 November 2026: the latest record we hold ran out on 16 July 2026; ask the dealer for the current MOT.

It has had 6 MOTs. The latest, on 17 July 2025, passed.

Advisories at the latest test: offside rear inner tyre worn close to legal limit/worn on edge; offside front tyre worn close to legal limit/worn on edge; nearside front tyre worn close to legal limit/worn on edge; and 2 more.

Mileage at that test: 47,528 miles. The advert says 37,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 26,100 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 £24,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 33,000 miles. Price: £24,995, £5,000 less than this car. Dealer: Alan Tully Cars in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-8a0273b0d3a2
• 2018 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 46,036 miles. Price: £23,190, £6,805 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, black. Mileage: 51,807 miles. Price: £21,990, £8,005 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, 9 miles from this car. Mileage: 52,000 miles. Price: £23,995, £6,000 less than this car. Dealer: RWD Motor Group in Ossett. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-13659c5f22a7