2018 BMW X3 3.0 M40d

Overview

• Make: BMW
• Model: X3
• Version: 3.0 M40d Auto 4WD Euro 6 (s/s) 5dr (322 bhp)
• Year: 2018
• Mileage: 27,200 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 322 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Other
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 is advertised with 27,200 miles, approximately 37,700 below the typical mileage for its age. Its asking price of £28,995 is £1,607 below the AskCar estimate of £30,602. The AskCar estimate uses UK dealer asking prices, including 3,034 BMW X3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 120 days ago. Its asking price has since fallen by £1,000. You can find this car at Taurus Autos in Grantham. 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: £1,607 (5%) under the AskCar estimate of £30,602.

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 120 days.

Price history

AskCar first saw this advert on 7 July 2026 at £29,995. Its asking price is now £28,995, £1,000 less. The latest price cut was seen on 12 September 2026.

Price changes recorded:

• 8 July 2026: £29,995
• 12 September 2026: £28,995

Mileage and MOT

Advertised mileage is about 37,700 miles lower than the median mileage of a 2018 BMW X3 on AskCar.