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: 49,900 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

At 49,900 miles, this 2018 BMW X3 M Sport has covered about 14,500 fewer miles than other 2018 BMW X3 cars. The AskCar estimate for this car is £24,047. It is priced at £24,995, which is £948 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 2,992 BMW X3 cars across different ages and specifications. We first recorded this car for sale 139 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Arena Cars in ASH Vale. 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: £948 (3%) over the AskCar estimate of £24,047.

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 139 days.

Price history

AskCar first saw this advert on 16 June 2026 at £24,995. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 26 November 2026.

It has had 7 MOTs. The latest, on 24 November 2025, passed.

Advisories at the latest test: nearside front tyre slightly damaged/cracking or perishing; offside front tyre slightly damaged/cracking or perishing.

Mileage at that test: 48,339 miles, which matches the advertised 49,900 miles.

Advertised mileage is about 14,500 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 £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, grey. Mileage: 48,712 miles. Price: £25,000, the same price as this car. Dealer: Sytner Warwick BMW in Warwick. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-8b5d8dce69a2
• 2018 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 48,000 miles. Price: £25,995, £1,000 more than this car. Dealer: Cavendish UK Car Sales in Sudbury. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-dea507c5df46
• 2018 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 53,326 miles. Price: £22,490, £2,505 less than this car. Dealer: Right Track Cars in Fordingbridge. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-16526dd32488

• The nearest: 2018 BMW X3 M Sport, 3.0 diesel SUV, black, 2 miles from this car. Mileage: 39,031 miles. Price: £25,850, £855 more than this car. Dealer: Group 1 Farnborough BMW in Farnborough. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-b6712c5c2ee3