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: 84,122 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 M Sport is advertised with 84,122 miles, approximately 20,400 above the typical mileage for its age. The AskCar estimate for this car is £19,046. It is priced at £19,995, which is £949 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 3,043 BMW X3 cars across different ages and specifications. This car was first seen in our listings data today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Richlee Motor Company Rayleigh, based in Rayleigh. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 11 November 2026.

How we estimate prices and check cars

Price

Fair price: £949 (4%) over the AskCar estimate of £19,046.

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 3,043 priced BMW X3 adverts across different ages and specifications, as of 11 November 2026.

A 2018 BMW X3 with the 3.0 diesel engine is typically advertised at £22,000: the median of the 63 for sale on AskCar, as of 11 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: 100 of the 233 first advertised between 13 July 2026 and 8 October 2026.

Price history

AskCar first saw this advert on 11 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 11 November 2026: valid until 13 December 2026.

It has had 7 MOTs. The latest, on 27 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 72,913 miles, which matches the advertised 84,122 miles.

Advertised mileage is about 20,400 miles higher than the median mileage of a 2018 BMW X3 on AskCar.

Similar cars

42 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 11 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 83,652 miles. Price: £19,995, the same price as this car. Dealer: German Motor Store in Chesterfield. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-1566c613b11a
• 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, black. Mileage: 86,000 miles. Price: £19,895, £100 less than this car. Dealer: Signature Car Specialists in Burnley. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-7d0a1c679aa1

• The nearest: 2018 BMW X3 M Sport, 3.0 diesel SUV, black, 21 miles from this car. Mileage: 64,415 miles. Price: £22,000, £2,005 more than this car. Dealer: Sytner Chigwell BMW in Chigwell. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-657344f6cf37