2018 BMW X3 2.0 20i M Sport
Version: 2.0 20i M Sport Auto 4WD Euro 6 (s/s) 5dr (181 bhp)
Price: £18,995. Fair price: £912 (4%) under the AskCar estimate of £19,907, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,986 priced BMW X3 adverts on AskCar as of 29 October 2026.
AskCar lists 3,088 used BMW X3 from 1,215 UK dealerships, as of 29 October 2026.
Overview
- Make
- BMW
- Model
- X3
- Trim
- M Sport
- Version
- 2.0 20i M Sport Auto 4WD Euro 6 (s/s) 5dr (181 bhp)
- Mileage
- 55,135 miles
- Year
- 2018
- Fuel type
- Petrol
- Body type
- SUV
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 181 bhp
- Seats
- 5
- CO2
- 166 g/km
- Colour
- Blue
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Engine badge
- 20i
- Emissions standard
- Euro 6
About this car
With 55,135 miles on the clock, this 2018 BMW X3 M Sport has done roughly 9,000 fewer miles than a typical 2018 BMW X3. The AskCar estimate for this car is £19,907. It is priced at £18,995, which is £912 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 2,986 BMW X3 cars across different ages and specifications. We have tracked this advert today. Its MOT is recorded as valid until 14 December 2026. The advertised mileage is consistent with the latest MOT reading. It is for sale at Car Brothers NI in Newtownabbey.
Stock data as of 29 October 2026.
Price history
AskCar first saw this advert on 29 October 2026.
| Date observed | Asking price |
|---|---|
| 29 October 2026 | £18,995 |
Price and mileage comparison
Fair price: £912 (4%) under the AskCar estimate of £19,907.
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 2,986 priced BMW X3 adverts across different ages and specifications, as of 29 October 2026.
Advertised mileage is about 9,000 miles lower 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 14 December 2026.
Other matching cars
18 other 2018 BMW X3 M Sport automatic petrol cars are for sale at UK dealers from £15,495 to £23,995, as of 29 October 2026.
The 5 cheapest:
- 2018 BMW X3. Price: £15,495. Mileage: 99,900 miles. Dealer: Earlsdon Motor Company in Coventry. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-1d671405a8d1
- 2018 BMW X3. Price: £15,999. Mileage: 87,541 miles. Dealer: Cargem in Rainham. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-30b8cc267a4d
- 2018 BMW X3. Price: £16,899. Mileage: 75,000 miles. Dealer: Southern Automotive Solutions in Southampton. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-5506f2d8df5d
- 2018 BMW X3. Price: £16,990. Mileage: 67,723 miles. Dealer: Global Cars in Enfield. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-4a261ce720c5
- 2018 BMW X3. Price: £17,400. Mileage: 70,973 miles. Dealer: Carworld Car Supermarket in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-21525b8e1e9e
The 18 matching cars have covered 20,426 to 99,900 miles, compared with 55,135 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
32 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 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.