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: 77,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Silver
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 77,000 miles on the clock, this 2018 BMW X3 M Sport has done roughly 12,100 more miles than a typical 2018 BMW X3. Its asking price of £19,000 is £1,124 below the AskCar estimate of £20,124. To work out the AskCar estimate, we analyse UK dealer adverts for 3,034 BMW X3 cars across different ages and specifications. The asking price is now £1,000 lower than when we first recorded the advert 38 days ago. Our records show an MOT expiry date of 29 September 2026, which has passed. Ask the dealer for an update. The government's MOT record matches its advertised mileage. It is advertised by Marton Car Sales in Coventry. 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: £1,124 (5%) under the AskCar estimate of £20,124.

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 38 days.

Price history

AskCar first saw this advert on 27 September 2026 at £20,000. Its asking price is now £19,000, £1,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 27 September 2026: £20,000
• 28 October 2026: £19,000
• 31 October 2026: £20,000
• 4 November 2026: £19,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 29 September 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 17 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 66,781 miles, which matches the advertised 77,000 miles.

Advertised mileage is about 12,100 miles higher 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, white. Mileage: 77,842 miles. Price: £19,988, £988 more than this car. Dealer: Desmond Motors Londonderry in Derry. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-8cc1b6c7e40a
• 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 76,000 miles. Price: £20,000, £1,000 more than this car. Dealer: Simply Cars in Sittingbourne. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-99c690059881
• 2018 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 76,000 miles. Price: £21,500, £2,500 more than this car. Dealer: PMA Cars NI in Newry. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-8397a80e5153

• The nearest: 2018 BMW X3 M Sport, 3.0 diesel SUV, black, 34 miles from this car. Mileage: 58,251 miles. Price: £23,099, £4,099 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-755fd3767bf7