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: 86,000 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 86,000 miles, this 2018 BMW X3 M Sport has covered about 21,100 more miles than other 2018 BMW X3 cars. Its asking price of £19,995 is £1,112 above the AskCar estimate of £18,883. To work out the AskCar estimate, we analyse UK dealer adverts for 3,034 BMW X3 cars across different ages and specifications. We have tracked this advert today. Its advertised mileage matches the government's MOT record. It is advertised by Signature Car Specialists in Burnley. 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: £1,112 (5%) over the AskCar estimate of £18,883.

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

AskCar first saw this 2018 BMW X3 advertised today. About 4 in 10 of 2018 BMW X3 cars are gone from sale within a month of being advertised: 95 of the 216 first advertised between 9 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £19,995. 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 4 November 2026: valid until 20 September 2027.

It failed its MOT on 16 September 2026 (front windscreen washer not working; engine MIL inoperative or indicates a malfunction) and passed 5 days later, on 21 September 2026.

There were no advisories at the latest test.

Mileage at that test: 85,631 miles, which matches the advertised 86,000 miles.

Advertised mileage is about 21,100 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, black. Mileage: 84,920 miles. Price: £17,495, £2,500 less than this car. Dealer: Position One Motor Company in Leatherhead. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-64a44a3d684b
• 2018 BMW X3 M Sport, 3.0 diesel SUV. Mileage: 88,000 miles. Price: £22,990, £2,995 more than this car. Dealer: Starline Car Sales in Stamford. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-21114233081a
• 2018 BMW X3 M Sport, 3.0 diesel SUV, blue. Mileage: 81,000 miles. Price: £18,495, £1,500 less than this car. Dealer: Lewis Motors Direct in Aberystwyth. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-fed27fe113ee

• The nearest: 2018 BMW X3 M Sport, 3.0 diesel SUV, black, under a mile from this car. Mileage: 71,400 miles. Price: £21,995, £2,000 more than this car. Dealer: Signature Car Specialists in Burnley. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-052155fd718a