2018 BMW X6 3.0 30d M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 xDrive30d M Sport Auto 4WD Euro 6 5dr Step (254 bhp)
• Year: 2018
• Mileage: 46,036 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 254 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 183 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X6 M Sport has covered 46,036 miles, around 17,100 fewer miles than is typical for its age. The AskCar estimate for this car is £24,728. It is priced at £23,190, which is £1,538 below that estimate. The AskCar estimate uses 536 UK dealer adverts for the BMW X6, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 64 days ago. Its asking price has since fallen by £290. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone BMW Bury St Edmunds, based in Bury St Edmunds. 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: £1,538 (6%) under the AskCar estimate of £24,728.

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 64 days.

Price history

AskCar first saw this advert on 30 August 2026 at £23,480. Its asking price is now £23,190, £290 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 30 August 2026: £23,480
• 6 October 2026: £22,980
• 15 October 2026: £23,890
• 16 October 2026: £23,590
• 27 October 2026: £23,190

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 18 January 2027.

It has had 7 MOTs. The latest, on 12 January 2026, 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: 39,380 miles, which matches the advertised 46,036 miles.

Advertised mileage is about 17,100 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 £29,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 51,807 miles. Price: £21,990, £1,200 less than this car. Dealer: East Kilbride Used Car Centre in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-27876e8c967d
• 2018 BMW X6 M Sport, 3.0 diesel SUV, white. Mileage: 52,000 miles. Price: £23,995, £805 more than this car. Dealer: RWD Motor Group in Ossett. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-13659c5f22a7
• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 52,302 miles. Price: £23,299, £109 more than this car. Dealer: Pine Lodge Cars in Whitchurch. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-b4d127f5d27b

• The nearest: 2018 BMW X6 M Sport, 3.0 diesel SUV, silver, 45 miles from this car. Mileage: 10,000 miles. Price: £21,990, £1,200 less than this car. Dealer: Sleaford Car Centre in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-29c129d6db52