2018 BMW X3 2.0 20i Xline

Overview

• Make: BMW
• Model: X3
• Trim: Xline
• Version: 2.0 20i GPF Xline Auto 4WD Euro 6 (s/s) 5dr (181 bhp)
• Year: 2018
• Mileage: 44,621 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 166 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 Xline is advertised with 44,621 miles, approximately 20,300 below the typical mileage for its age. Its asking price of £19,495 is £282 below the AskCar estimate of £19,777. The AskCar estimate draws on 3,034 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 160 days ago, and its asking price has since fallen by £2,000. The government's MOT record matches its advertised mileage. It is advertised by Western Auto Solutions in Slough. 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: £282 (1%) under the AskCar estimate of £19,777.

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 2.0 petrol engine is typically advertised at £18,400: the median of the 147 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 BMW X3 has been on sale for at least 160 days.

Price history

AskCar first saw this advert on 28 May 2026 at £21,495. Its asking price is now £19,495, £2,000 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 28 May 2026: £21,495
• 17 June 2026: £20,495
• 22 June 2026: £19,995
• 22 September 2026: £19,495
• 8 October 2026: £19,995
• 10 October 2026: £20,995
• 12 October 2026: £19,995
• 31 October 2026: £19,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 18 May 2027.

It has had 8 MOTs. The latest, on 19 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 44,621 miles, which matches the advertised 44,621 miles.

Advertised mileage is about 20,300 miles lower than the median mileage of a 2018 BMW X3 on AskCar.

Similar cars

11 other 2018 BMW X3 Xline 2.0 petrol automatic SUVs are for sale at UK dealers, from £14,600 to £22,990, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 Xline, 2.0 petrol SUV, blue. Mileage: 60,352 miles. Price: £17,995, £1,500 less than this car. Dealer: Car-Link in Ferndown. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-3adebd33a6f4
• 2018 BMW X3 Xline, 2.0 petrol SUV, black. Mileage: 63,299 miles. Price: £17,695, £1,800 less than this car. Dealer: Carite in Swindon. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-0875da8356be
• 2018 BMW X3 Xline, 2.0 petrol SUV, silver. Mileage: 67,360 miles. Price: £16,800, £2,695 less than this car. Dealer: Driven of York in Tadcaster. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-46472c88553f

• The nearest: 2018 BMW X3 Xline, 2.0 petrol SUV, black, 3 miles from this car. Mileage: 79,900 miles. Price: £17,099, £2,396 less than this car. Dealer: Flc in Yiewsley. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-6699c334bf81