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: 71,400 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 M Sport is advertised with 71,400 miles, approximately 7,000 above the typical mileage for its age. Its asking price of £21,995 is £964 above the AskCar estimate of £21,031. To work out the AskCar estimate, we analyse UK dealer adverts for 2,992 BMW X3 cars across different ages and specifications. We first saw this car advertised 158 days ago. Its asking price has since fallen by £995. We checked its advertised mileage against the government's MOT record, and they match. The seller is Signature Car Specialists, based in Burnley. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £964 (4%) over the AskCar estimate of £21,031.

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 2,992 priced BMW X3 adverts across different ages and specifications, as of 2 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 2 November 2026.

Time on sale

This 2018 BMW X3 has been on sale for at least 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £22,990. Its asking price is now £21,995, £995 less. The latest price cut was seen on 15 October 2026.

Price changes recorded:

• 28 May 2026: £22,990
• 4 June 2026: £22,595
• 19 June 2026: £22,495
• 15 October 2026: £21,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 1 February 2027.

It has had 7 MOTs. The latest, on 2 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 71,670 miles, which matches the advertised 71,400 miles.

Advertised mileage is about 7,000 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 £15,950 to £29,950, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 M Sport, 3.0 diesel SUV, silver. Mileage: 70,000 miles. Price: £21,480, £515 less than this car. Dealer: The Car Arena in Kimberley. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-c361874d32ca
• 2018 BMW X3 M Sport, 3.0 diesel SUV, blue. Mileage: 68,601 miles. Price: £21,099, £896 less than this car. Dealer: Lookers Mercedes-Benz of Shrewsbury in Shrewsbury. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-ee97904c1d65
• 2018 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 74,500 miles. Price: £21,995, the same price as this car. Dealer: Northern Motor House in Shipley. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-2faf6e725675