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: 74,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 158 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 74,000 miles on the clock, this 2018 BMW X3 Xline has done roughly 9,100 more miles than a typical 2018 BMW X3. The AskCar estimate for this car is £17,872. It is priced at £18,200, which is £328 above that estimate. 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 recorded this car for sale 6 days ago. Its advertised mileage matches the government's MOT record. It is advertised by Motonet.com in Coventry. 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: £328 (1%) over the AskCar estimate of £17,872.

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 6 days ago. 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 30 October 2026 at £18,200. 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 19 March 2027.

It has had 6 MOTs. The latest, on 4 March 2026, passed.

Advisories at the latest test: front brake disc worn, but not excessively; rear brake disc worn, but not excessively; rear tyre slightly damaged/cracking or perishing; and 1 more.

Mileage at that test: 72,836 miles, which matches the advertised 74,000 miles.

Advertised mileage is about 9,100 miles higher 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 £18,280 to £23,400, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 Xline, 3.0 diesel SUV, silver. Mileage: 64,609 miles. Price: £18,998, £798 more than this car. Dealer: Arnold Clark East Kilbride Motorstore in East Kilbride. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-5dce0eeace2c
• 2018 BMW X3 Xline, 3.0 diesel SUV, black. Mileage: 62,236 miles. Price: £18,280, £80 more than this car. Dealer: Evans Halshaw Hyundai Leeds in Leeds. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-ff2e12933d9c
• 2018 BMW X3 Xline, 3.0 diesel SUV, silver. Mileage: 50,584 miles. Price: £20,989, £2,789 more than this car. Dealer: Vospers Approved Used St Austell in St Austell. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-08efeb87889d

• The nearest: 2018 BMW X3 Xline, 3.0 diesel SUV, white, 86 miles from this car. Mileage: 44,787 miles. Price: £19,950, £1,750 more than this car. Dealer: cartime Rochdale in Rochdale. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-20cf89c8746c