2018 BMW X3 3.0 30d Xline

Overview

• Make: BMW
• Model: X3
• Trim: Xline
• Version: 3.0 30d Xline Auto 4WD Euro 6 (s/s) 5dr (261 bhp)
• Year: 2018
• Mileage: 26,889 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Silver
• CO2: 158 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 Xline is advertised with 26,889 miles, approximately 38,000 below the typical mileage for its age. The dealer is asking £23,400, which is £56 below the AskCar estimate of £23,456. To work out the AskCar estimate, we analyse UK dealer adverts for 3,076 BMW X3 cars across different ages and specifications. We first recorded this car for sale today. The government's MOT record matches its advertised mileage. You can find this car at Hammond Nissan & MG in Halesworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £56 (under 1%) under the AskCar estimate of £23,456.

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 3,076 priced BMW X3 adverts across different ages and specifications, as of 5 November 2026.

A 2018 BMW X3 with the 3.0 diesel engine is typically advertised at £22,000: the median of the 67 for sale on AskCar, as of 5 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: 96 of the 220 first advertised between 9 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 5 November 2026 at £23,400. 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 5 November 2026: valid until 27 March 2027.

It has had 6 MOTs. The latest, on 17 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 26,579 miles, which matches the advertised 26,889 miles.

Advertised mileage is about 38,000 miles lower than the median mileage of a 2018 BMW X3 on AskCar.

Similar cars

5 other 2018 BMW X3 Xline 3.0 diesel automatic SUVs are for sale at UK dealers, from £18,200 to £20,989, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 Xline, 3.0 diesel SUV, white. Mileage: 44,787 miles. Price: £19,950, £3,450 less than this car. Dealer: cartime Rochdale in Rochdale. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-20cf89c8746c
• 2018 BMW X3 Xline, 3.0 diesel SUV, silver. Mileage: 50,584 miles. Price: £20,989, £2,411 less than this car. Dealer: Vospers Approved Used St Austell in St Austell. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-08efeb87889d
• 2018 BMW X3 Xline, 3.0 diesel SUV, black. Mileage: 62,236 miles. Price: £18,280, £5,120 less than this car. Dealer: Evans Halshaw Hyundai Leeds in Leeds. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-ff2e12933d9c

• The nearest: 2018 BMW X3 Xline, 3.0 diesel SUV, grey, 127 miles from this car. Mileage: 74,000 miles. Price: £18,200, £5,200 less than this car. Dealer: Motonet.com in Coventry. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-80fb78194d82