2018 BMW X3 3.0 30d M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 3.0 30d M Sport Auto 4WD Euro 6 (s/s) 5dr (261 bhp)
• Year: 2018
• Mileage: 48,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 48,000 miles on the clock, this 2018 BMW X3 M Sport has done roughly 16,900 fewer miles than a typical 2018 BMW X3. Its asking price of £25,995 is £1,805 above the AskCar estimate of £24,190. 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 35 days ago. Its asking price has since fallen by £2,000. The government's MOT record matches its advertised mileage. You can find this car at Cavendish UK Car Sales in Sudbury. 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: £1,805 (7%) over the AskCar estimate of £24,190.

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 2018 BMW X3 with the 3.0 diesel engine is typically advertised at £22,000: the median of the 64 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 BMW X3 has been on sale for at least 35 days.

Price history

AskCar first saw this advert on 30 September 2026 at £27,995. Its asking price is now £25,995, £2,000 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 30 September 2026: £27,995
• 10 October 2026: £27,295
• 17 October 2026: £26,995
• 22 October 2026: £26,495
• 1 November 2026: £25,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 24 November 2026.

It failed its MOT on 17 November 2025 (nearside front inner tyre has a bulge, caused by separation or partial failure of its structure) and passed 8 days later, on 25 November 2025.

Advisories at the latest test: nearside front brake disc worn, but not excessively; offside front brake disc worn, but not excessively; nearside rear brake disc worn, but not excessively; and 1 more.

Mileage at that test: 43,657 miles, which matches the advertised 48,000 miles.

Advertised mileage is about 16,900 miles lower than the median mileage of a 2018 BMW X3 on AskCar.

Similar cars

43 other 2018 BMW X3 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £17,495 to £29,450, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 49,900 miles. Price: £24,995, £1,000 less than this car. Dealer: Arena Cars in Ash and Ash Vale. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-27f67c184384
• 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 44,118 miles. Price: £27,000, £1,005 more than this car. Dealer: Listers BMW King's Lynn in King's Lynn. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-092d9838a40e
• 2018 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 43,904 miles. Price: £22,850, £3,145 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-af5971125392

• The nearest: 2018 BMW X3 M Sport, 3.0 diesel SUV, black, 19 miles from this car. Mileage: 64,446 miles. Price: £21,995, £4,000 less than this car. Dealer: Selecta Cars in Colchester. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-7e8c06f70e38