2018 BMW X3 2.0 20d Xline

Overview

• Make: BMW
• Model: X3
• Trim: Xline
• Version: 2.0 20d Xline Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2018
• Mileage: 74,440 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 Xline has covered 74,440 miles, around 9,600 more miles than is typical for its age. Its asking price of £15,750 is £347 below the AskCar estimate of £16,097. The AskCar estimate uses 3,076 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 14 days ago. Its asking price has since fallen by £600. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Car Planet Barnet in New Southgate. 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: £347 (2%) under the AskCar estimate of £16,097.

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 2.0 diesel engine is typically advertised at £18,300: the median of the 150 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 BMW X3 has been on sale for at least 14 days.

Price history

AskCar first saw this advert on 22 October 2026 at £16,350. Its asking price is now £15,750, £600 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 22 October 2026: £16,350
• 26 October 2026: £16,050
• 5 November 2026: £15,750

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 11 April 2027.

It has had 6 MOTs. The latest, on 7 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 69,246 miles, which matches the advertised 74,440 miles.

Advertised mileage is about 9,600 miles higher than the median mileage of a 2018 BMW X3 on AskCar.

Similar cars

14 other 2018 BMW X3 Xline 2.0 diesel automatic SUVs are for sale at UK dealers, from £12,611 to £20,998, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 Xline, 2.0 diesel SUV, white. Mileage: 69,782 miles. Price: £20,995, £5,245 more than this car. Dealer: Group 1 Cambridge BMW in Cambridge. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-80ca15ac1349
• 2018 BMW X3 Xline, 2.0 diesel SUV, blue. Mileage: 67,281 miles. Price: £17,992, £2,242 more than this car. Dealer: Partridge BMW in Eastleigh. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-61b032eff597
• 2018 BMW X3 Xline, 2.0 diesel SUV, white. Mileage: 63,212 miles. Price: £17,790, £2,040 more than this car. Dealer: Williams Liverpool Bmw in Liverpool. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-7e2363531a59

• The nearest: 2018 BMW X3 Xline, 2.0 diesel SUV, grey, 22 miles from this car. Mileage: 106,776 miles. Price: £12,611, £3,139 less than this car. Dealer: Wiz Motors in Luton. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-440eb52d236a