2018 BMW X3 3.0 30d Xline
Version: 3.0 30d Xline Auto 4WD Euro 6 (s/s) 5dr (261 bhp)
Price: £18,200. Fair price: £165 (under 1%) over the AskCar estimate of £18,035, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,993 priced BMW X3 adverts on AskCar as of 30 October 2026.
AskCar lists 3,047 used BMW X3 from 1,191 UK dealerships, as of 30 October 2026.
Overview
- Make
- BMW
- Model
- X3
- Trim
- Xline
- Version
- 3.0 30d Xline Auto 4WD Euro 6 (s/s) 5dr (261 bhp)
- Mileage
- 74,000 miles
- Year
- 2018
- Fuel type
- Diesel
- Body type
- SUV
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 261 bhp
- Seats
- 5
- CO2
- 158 g/km
- Colour
- Grey
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Engine badge
- 30d
- Emissions standard
- Euro 6
About this car
With 74,000 miles on the clock, this 2018 BMW X3 Xline has done roughly 9,600 more miles than a typical 2018 BMW X3. The AskCar estimate for this car is £18,035. It is priced at £18,200, which is £165 above that estimate. The AskCar estimate uses 2,993 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert today. The latest MOT record shows an expiry date of 19 March 2027, with the advertised mileage consistent with the recorded reading. It is advertised by Motonet.com in Coventry.
Stock data as of 30 October 2026.
Price history
AskCar first saw this advert on 30 October 2026.
| Date observed | Asking price |
|---|---|
| 30 October 2026 | £18,200 |
Price and mileage comparison
Fair price: £165 (under 1%) over the AskCar estimate of £18,035.
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 2,993 priced BMW X3 adverts across different ages and specifications, as of 30 October 2026.
Advertised mileage is about 9,600 miles higher than the median mileage of a 2018 BMW X3 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 19 March 2027. 72,836 miles at the last test.
Other matching cars
20 other 2018 BMW X3 Xline automatic diesel cars are for sale at UK dealers from £12,611 to £21,998, as of 30 October 2026.
The 5 cheapest:
- 2018 BMW X3. Price: £12,611. Mileage: 106,776 miles. Dealer: Wiz Motors in Luton. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-440eb52d236a
- 2018 BMW X3. Price: £13,430. Mileage: 97,434 miles. Dealer: Silver Birch Motor Company in Royal Sutton Coldfield. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-afd6b5091b18
- 2018 BMW X3. Price: £13,497. Mileage: 94,100 miles. Dealer: Car Kultur in Aston Sandford. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-817c9e8878ad
- 2018 BMW X3. Price: £13,995. Mileage: 99,710 miles. Dealer: Globe Automotive in Stourbridge. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-dbf7e370e1eb
- 2018 BMW X3. Price: £13,999. Mileage: 118,000 miles. Dealer: Motordrive in Derby. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-fd94268bca82
The 20 matching cars have covered 28,907 to 118,000 miles, compared with 74,000 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all BMW X3 cars for sale · 2018 BMW X3 price guide
More like this
Photos
7 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.