2018 BMW X3 2.0 20d M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 20d M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2018
• Mileage: 72,267 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 M Sport has covered 72,267 miles, around 7,800 more miles than is typical for its age. The dealer is asking £18,490, which is £369 above the AskCar estimate of £18,121. To work out the AskCar estimate, we analyse UK dealer adverts for 2,992 BMW X3 cars across different ages and specifications. The asking price is now £990 lower than when we first recorded the advert 38 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Fort Southwick Cars in Fareham. 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: £369 (2%) over the AskCar estimate of £18,121.

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 2.0 diesel engine is typically advertised at £18,500: the median of the 151 for sale on AskCar, as of 2 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 25 September 2026 at £19,480. Its asking price is now £18,490, £990 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 25 September 2026: £19,480
• 10 October 2026: £18,990
• 22 October 2026: £18,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 14 July 2027.

It has had 6 MOTs. The latest, on 15 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 66,986 miles, which matches the advertised 72,267 miles.

Advertised mileage is about 7,800 miles higher than the median mileage of a 2018 BMW X3 on AskCar.

Similar cars

78 other 2018 BMW X3 M Sport 2.0 diesel automatic SUVs are for sale at UK dealers, from £13,250 to £23,289, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 71,700 miles. Price: £19,995, £1,505 more than this car. Dealer: Signature Car Specialists in Burnley. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-35aadc2e3b8f
• 2018 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 73,057 miles. Price: £19,199, £709 more than this car. Dealer: Lookers BMW Stoke-On-Trent in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-55263e295df8
• 2018 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 71,000 miles. Price: £15,995, £2,495 less than this car. Dealer: M M K Motor Company in Darlington. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-a0936a9c0c07

• The nearest: 2018 BMW X3 M Sport, 2.0 diesel SUV, grey, 1 miles from this car. Mileage: 69,229 miles. Price: £18,385, £105 less than this car. Dealer: Bayer Car Sales in Fareham. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-4265cf840051