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: 65,692 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 M Sport is advertised with 65,692 miles on the clock. Its asking price of £21,793 is £6 below the AskCar estimate of £21,799. The AskCar estimate uses UK dealer asking prices, including 3,034 BMW X3 adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 53 days ago, the asking price has dropped by £2,197. We checked its advertised mileage against the government's MOT record, and they match. The seller is Group 1 Bedford BMW, based in Bedford. 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: £6 (under 1%) under the AskCar estimate of £21,799.

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 53 days.

Price history

AskCar first saw this advert on 12 September 2026 at £23,990. Its asking price is now £21,793, £2,197 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 12 September 2026: £23,990
• 24 September 2026: £23,493
• 1 October 2026: £22,993
• 14 October 2026: £21,993
• 23 October 2026: £21,793

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 29 April 2027.

It has had 6 MOTs. The latest, on 9 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 61,447 miles, which matches the advertised 65,692 miles.

Advertised mileage is about 800 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: 65,715 miles. Price: £20,995, £798 less than this car. Dealer: Georgesons Car Sales in Liverpool. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-b314b45b04f7
• 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 64,446 miles. Price: £21,995, £202 more than this car. Dealer: Selecta Cars in Colchester. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-7e8c06f70e38
• 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 64,415 miles. Price: £22,000, £207 more than this car. Dealer: Sytner Chigwell BMW in Chigwell. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-657344f6cf37

• The nearest: 2018 BMW X3 M Sport, 3.0 diesel SUV, black, 4 miles from this car. Mileage: 73,000 miles. Price: £22,295, £502 more than this car. Dealer: Goldstone Cars in Kempston. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-b51562313fb8