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: 43,904 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

At 43,904 miles, this 2018 BMW X3 M Sport has covered about 20,500 fewer miles than other 2018 BMW X3 cars. The AskCar estimate for this car is £24,679. It is priced at £22,550, which is £2,129 below that estimate. The AskCar estimate uses 3,099 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 17 days ago, and its asking price has since fallen by £300. Its advertised mileage matches the government's MOT record. You can find this car at Car Planet Barnet in New Southgate. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Good value: £2,129 (8%) under the AskCar estimate of £24,679.

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 3,099 priced BMW X3 adverts across different ages and specifications, as of 6 November 2026.

A 2018 BMW X3 with the 3.0 diesel engine is typically advertised at £22,000: the median of the 65 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2018 BMW X3 has been on sale for at least 17 days.

Price history

AskCar first saw this advert on 20 October 2026 at £22,850. Its asking price is now £22,550, £300 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 20 October 2026: £22,850
• 6 November 2026: £22,550

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 26 July 2027.

It has had 9 MOTs. The latest, on 17 July 2026, passed.

Advisories at the latest test: offside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 39,181 miles, which matches the advertised 43,904 miles.

Advertised mileage is about 20,500 miles lower than the median mileage of a 2018 BMW X3 on AskCar.

Similar cars

44 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 6 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 44,118 miles. Price: £24,750, £2,200 more than this car. Dealer: Listers BMW King's Lynn in King's Lynn. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-092d9838a40e
• 2018 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 48,000 miles. Price: £25,995, £3,445 more than this car. Dealer: Cavendish UK Car Sales in Sudbury. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-dea507c5df46
• 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 39,031 miles. Price: £24,995, £2,445 more than this car. Dealer: Group 1 Farnborough BMW in Farnborough. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-b6712c5c2ee3

• The nearest: 2018 BMW X3 M Sport, 3.0 diesel SUV, white, 2 miles from this car. Mileage: 93,715 miles. Price: £17,990, £4,560 less than this car. Dealer: Auto Mall in London. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-7b14dc73d0fc