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: 128,000 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 has covered 128,000 miles, around 64,900 more miles than is typical for its age. Priced at £15,748, it is advertised £855 above the AskCar estimate of £14,893. The AskCar estimate draws on 536 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 80 days ago, and its asking price has since fallen by £1,140. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by UP Prestige in Bridgnorth. 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: £855 (5%) over the AskCar estimate of £14,893.

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 80 days.

Price history

AskCar first saw this advert on 14 August 2026 at £16,888. Its asking price is now £15,748, £1,140 less. The latest price cut was seen on 14 October 2026.

Price changes recorded:

• 14 August 2026: £16,888
• 17 August 2026: £16,748
• 11 September 2026: £16,488
• 14 September 2026: £16,248
• 19 September 2026: £15,998
• 22 September 2026: £15,988
• 14 October 2026: £15,748

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 25 June 2027.

It has had 7 MOTs. The latest, on 11 June 2026, passed.

Advisories at the latest test: rear tyre slightly damaged/cracking or perishing x 2.

Mileage at that test: 127,505 miles, which matches the advertised 128,000 miles.

Advertised mileage is about 64,900 miles higher 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: 129,000 miles. Price: £14,799, £949 less than this car. Dealer: Southern Automotive Solutions in Southampton. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-2cc7e1115ff0
• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 120,000 miles. Price: £13,995, £1,753 less than this car. Dealer: See Cars Nottingham in Little Eaton. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-a8a5bdb6721f
• 2018 BMW X6 M Sport, 3.0 diesel SUV, white. Mileage: 92,700 miles. Price: £19,995, £4,247 more than this car. Dealer: Diamond Motor House in Leeds. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-fbc64ac61276

• The nearest: 2018 BMW X6 M Sport, 3.0 diesel SUV, white, 13 miles from this car. Mileage: 76,400 miles. Price: £20,490, £4,742 more than this car. Dealer: Motorlanka in Stourbridge. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-43a9bdb899c6