2023 BMW X3 3.0 30d MHT M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 3.0 30d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (282 bhp)
• Year: 2023
• Mileage: 26,756 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 282 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW X3 M Sport has covered 26,756 miles. The AskCar estimate for this car is £39,468. It is priced at £39,500, which is £32 above that estimate. The AskCar estimate uses UK dealer asking prices, including 3,034 BMW X3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 34 days ago. Its asking price has since fallen by £250. The latest MOT recorded 32,457 miles, above the advertised mileage. Check this with the dealer. Its MOT is recorded as valid until 28 September 2027. The seller is Sytner Swansea MINI, based in Swansea. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £32 (under 1%) over the AskCar estimate of £39,468.

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 3,034 priced BMW X3 adverts across different ages and specifications, as of 4 November 2026.

A 2023 BMW X3 with the 3.0 diesel engine is typically advertised at £41,500: the median of the 72 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 BMW X3 has been on sale for at least 34 days.

Price history

AskCar first saw this advert on 1 October 2026 at £39,750. Its asking price is now £39,500, £250 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 1 October 2026: £39,750
• 3 November 2026: £39,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 28 September 2027.

It has had one MOT, on 29 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 32,457 miles. The advert says 26,756 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 3,300 miles lower than the median mileage of a 2023 BMW X3 on AskCar.

Similar cars

26 other 2023 BMW X3 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £31,399 to £41,490, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 27,000 miles. Price: £37,000, £2,500 less than this car. Dealer: J R R Cars in Leyland. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-9f64ae110960
• 2023 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 27,751 miles. Price: £40,500, £1,000 more than this car. Dealer: Sytner Sunningdale BMW in Bracknell. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-74adbe219432
• 2023 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 27,935 miles. Price: £38,590, £910 less than this car. Dealer: Stratstone BMW Maidstone in Maidstone. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-9d905a61bbdd

• The nearest: 2023 BMW X3 M Sport, 3.0 diesel SUV, white, 35 miles from this car. Mileage: 28,964 miles. Price: £36,750, £2,750 less than this car. Dealer: Sytner Cardiff BMW in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-e8292e3f07a0