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: 51,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Silver
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 Xline has covered 51,000 miles, around 13,900 fewer miles than is typical for its age. Priced at £17,595, it is advertised £1,172 below the AskCar estimate of £18,767. The AskCar estimate uses 3,034 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 8 days ago. Its asking price has since fallen by £900. We checked its advertised mileage against the government's MOT record, and they match. The seller is SD Automotive, based in Sutton-in-Ashfield. 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: £1,172 (6%) under the AskCar estimate of £18,767.

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 diesel 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 8 days.

Price history

AskCar first saw this advert on 27 October 2026 at £18,495. Its asking price is now £17,595, £900 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 27 October 2026: £18,495
• 28 October 2026: £17,595

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 21 May 2027.

It has had 6 MOTs. The latest, on 1 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 49,981 miles, which matches the advertised 51,000 miles.

Advertised mileage is about 13,900 miles lower 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 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 Xline, 2.0 diesel SUV, grey. Mileage: 53,622 miles. Price: £20,998, £3,403 more than this car. Dealer: Arnold Clark Irvine BMW in Irvine. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-ce3f9b02e172
• 2018 BMW X3 Xline, 2.0 diesel SUV, white. Mileage: 38,873 miles. Price: £19,995, £2,400 more than this car. Dealer: TF Car Centre in Euxton. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-8259245ecf83
• 2018 BMW X3 Xline, 2.0 diesel SUV, white. Mileage: 63,212 miles. Price: £17,790, £195 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, 20 miles from this car. Mileage: 118,000 miles. Price: £13,999, £3,596 less than this car. Dealer: Motordrive in Derby. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-fd94268bca82