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: 35,268 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 has covered 35,268 miles. The dealer is asking £22,830, which is £3,154 below the AskCar estimate of £25,984. To work out the AskCar estimate, we analyse UK dealer adverts for 2,992 BMW X3 cars across different ages and specifications. Since we first spotted the advert 31 days ago, the asking price has dropped by £660. Ask the dealer why the advert shows fewer miles than the 36,040 recorded at the latest MOT. Its recorded MOT is valid until 26 September 2027. The seller is Evans Halshaw Ford Darlington, based in Darlington. 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

Good value: £3,154 (12%) under the AskCar estimate of £25,984.

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 3.0 diesel engine is typically advertised at £22,000: the median of the 64 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW X3 has been on sale for at least 31 days.

Price history

AskCar first saw this advert on 2 October 2026 at £23,490. Its asking price is now £22,830, £660 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 2 October 2026: £23,490
• 15 October 2026: £23,290
• 21 October 2026: £23,060
• 28 October 2026: £22,830

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 26 September 2027.

It has had 6 MOTs. The latest, on 22 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 36,040 miles. The advert says 35,268 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 29,200 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 £15,950 to £29,950, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 M Sport, 3.0 diesel SUV, blue. Mileage: 33,500 miles. Price: £22,690, £140 less than this car. Dealer: Werrington Motor Sales in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-12606fac4812
• 2018 BMW X3 M Sport, 3.0 diesel SUV, white. Mileage: 31,813 miles. Price: £27,850, £5,020 more than this car. Dealer: Sandal BMW Wakefield in Wakefield. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-a5d573df7ab1
• 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 39,031 miles. Price: £25,850, £3,020 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, blue, 26 miles from this car. Mileage: 91,882 miles. Price: £19,300, £3,530 less than this car. Dealer: Newton and Lee Automotive in Consett. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-55297dd8aeab