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: 57,345 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

This 2018 BMW X3 M Sport is advertised with 57,345 miles, approximately 7,500 below the typical mileage for its age. The dealer is asking £20,995, which is £2,022 below the AskCar estimate of £23,017. To work out the AskCar estimate, we analyse UK dealer adverts for 3,034 BMW X3 cars across different ages and specifications. We first saw this car advertised 107 days ago. Its asking price has since fallen by £1,000. Our records show an MOT expiry date of 29 July 2026, which has passed. Ask the dealer for an update. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Auriga Cars in Dronfield. 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

Good value: £2,022 (8%) under the AskCar estimate of £23,017.

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 107 days.

Price history

AskCar first saw this advert on 20 July 2026 at £21,995. Its asking price is now £20,995, £1,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 20 July 2026: £21,995
• 2 September 2026: £20,495
• 5 September 2026: £21,495
• 4 November 2026: £20,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 29 July 2026; ask the dealer for the current MOT.

It has had 6 MOTs. The latest, on 14 July 2025, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge 245/50R19 105W.

Mileage at that test: 51,768 miles, which matches the advertised 57,345 miles.

Advertised mileage is about 7,500 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 £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: 58,251 miles. Price: £23,099, £2,104 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-755fd3767bf7
• 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 58,821 miles. Price: £23,711, £2,716 more than this car. Dealer: The Gemini Group in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-027108bbd12b
• 2018 BMW X3 M Sport, 3.0 diesel SUV, blue. Mileage: 60,300 miles. Price: £21,490, £495 more than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-6237c7e30142

• The nearest: 2018 BMW X3 M Sport, 3.0 diesel SUV, silver, 23 miles from this car. Mileage: 70,000 miles. Price: £21,480, £485 more than this car. Dealer: The Car Arena in Kimberley. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-c361874d32ca