2023 BMW X6 3.0 40d MHT M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 40d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr
• Year: 2023
• Mileage: 36,512 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 184 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW X6 M Sport is advertised with 36,512 miles, approximately 8,200 above the typical mileage for its age. The dealer is asking £42,500, which is £489 below the AskCar estimate of £42,989. To work out the AskCar estimate, we analyse UK dealer adverts for 547 BMW X6 cars across different ages and specifications. We first saw this car advertised 122 days ago. Its asking price has since fallen by £1,990. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall Volvo Derby, based in Derby. 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

Fair price: £489 (1%) under the AskCar estimate of £42,989.

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 2023 BMW X6 with the 3.0 diesel engine is typically advertised at £48,600: the median of the 36 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2023 BMW X6 has been on sale for at least 122 days.

Price history

AskCar first saw this advert on 6 July 2026 at £44,490. Its asking price is now £42,500, £1,990 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 6 July 2026: £44,490
• 7 July 2026: £43,490
• 8 July 2026: £45,390
• 20 July 2026: £45,100
• 23 July 2026: £45,800
• 3 August 2026: £46,000
• 7 August 2026: £45,800
• 19 August 2026: £45,790
• 3 September 2026: £45,300
• 9 September 2026: £45,110
• 17 September 2026: £44,900
• 23 September 2026: £44,200
• 30 September 2026: £44,000
• 9 October 2026: £43,350
• 13 October 2026: £43,000
• 24 October 2026: £42,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 29 June 2027.

It failed its MOT on 19 June 2026 (offside front tyre has a bulge, caused by separation or partial failure of its structure) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 36,159 miles, which matches the advertised 36,512 miles.

Advertised mileage is about 8,200 miles higher than the median mileage of a 2023 BMW X6 on AskCar.

Similar cars

26 other 2023 BMW X6 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £35,995 to £59,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 36,359 miles. Price: £39,795, £2,705 less than this car. Dealer: Beck Evans in Sidcup. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-65aaa28325ef
• 2023 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 37,810 miles. Price: £48,990, £6,490 more than this car. Dealer: Williams Bmw Rochdale in Rochdale. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-b965f3646394
• 2023 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 34,732 miles. Price: £47,999, £5,499 more than this car. Dealer: Lookers BMW Stoke-On-Trent in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-96892420f250

• The nearest: 2023 BMW X6 M Sport, 3.0 diesel SUV, black, 24 miles from this car. Mileage: 18,087 miles. Price: £50,750, £8,250 more than this car. Dealer: Sytner Leicester BMW in Leicester. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-97ee01382c26