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 (335 bhp)
• Year: 2023
• Mileage: 24,842 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 185 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 24,842 miles, this 2023 BMW X6 M Sport has covered about 3,400 fewer miles than other 2023 BMW X6 cars. Priced at £46,000, it is advertised £5,607 below the AskCar estimate of £51,607. The AskCar estimate uses 547 UK dealer adverts for the BMW X6, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 56 days ago, and its asking price has since fallen by £1,000. Its advertised mileage matches the government's MOT record. You can find this car at Saxtons.co.uk in Chelmsford. 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: £5,607 (10%) under the AskCar estimate of £51,607.

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 56 days.

Price history

AskCar first saw this advert on 10 September 2026 at £47,000. Its asking price is now £46,000, £1,000 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

• 10 September 2026: £47,000
• 24 September 2026: £46,700
• 6 October 2026: £46,500
• 21 October 2026: £46,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 24 February 2027.

It failed its MOT on 17 February 2026 (nearside rear tyre has a cut in excess of the requirements deep enough to reach the ply or cords one large cut and some small damage) and passed 8 days later, on 25 February 2026.

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

Mileage at that test: 22,069 miles, which matches the advertised 24,842 miles.

Advertised mileage is about 3,400 miles lower 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, grey. Mileage: 24,000 miles. Price: £49,990, £3,990 more than this car. Dealer: A2B Performance in Kings Langley. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-33ab6de563a3
• 2023 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 23,946 miles. Price: £51,490, £5,490 more than this car. Dealer: Lloyd Land Rover Newcastle in Tynemouth. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-90e47cb29825
• 2023 BMW X6 M Sport, 3.0 diesel SUV, blue. Mileage: 23,575 miles. Price: £46,995, £995 more than this car. Dealer: Park's Motor Group Douglas Park BMW Hamilton in Hamilton. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-73723b5d08a0

• The nearest: 2023 BMW X6 M Sport, 3.0 diesel SUV, grey, 24 miles from this car. Mileage: 69,000 miles. Price: £43,995, £2,005 less than this car. Dealer: Winchmore Car Sales in Cuffley. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-98571bdf5f48