2018 BMW X3 3.0 30d M Sport
Price: £22,990. Above the going rate: £4,372 (23%) over the AskCar estimate of £18,618, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,034 priced BMW X3 adverts on AskCar as of 4 November 2026.
AskCar lists 3,115 used BMW X3 from 1,212 UK dealerships, as of 4 November 2026.
Overview
- Make: BMW
- Model: X3
- Trim: M Sport
- Version: 3.0 30d M Sport Auto 4WD Euro 6 (s/s) 5dr (261 bhp)
- Year: 2018
- Mileage: 88,000 miles
- Fuel: Diesel
- Body: SUV, 5 doors, 5 seats
- Engine: 3.0 litres, 261 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- CO2: 157 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 BMW X3 M Sport has covered 88,000 miles, around 23,100 more miles than is typical for its age. The AskCar estimate for this car is £18,618. It is priced at £22,990, which is £4,372 above that estimate. The AskCar estimate uses UK dealer asking prices, including 3,034 BMW X3 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 67 days. The seller is Starline Car Sales, based in Rutland. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Above the going rate: £4,372 (23%) over the AskCar estimate of £18,618.
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 3.0 diesel engine is typically advertised at £22,000: the median of the 64 for sale on AskCar, as of 4 November 2026.
Time on sale
This 2018 BMW X3 has been on sale for at least 67 days.
Price history
AskCar first saw this advert on 29 August 2026 at £22,990. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 23,100 miles higher than the median mileage of a 2018 BMW X3 on AskCar.
Similar cars
43 other 2018 BMW X3 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £17,495 to £29,450, as of 4 November 2026.
The 3 closest to this car in mileage:
- 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 86,000 miles. Price: £19,995, £2,995 less than this car. Dealer: Signature Car Specialists in Burnley. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-7d0a1c679aa1
- 2018 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 84,920 miles. Price: £17,495, £5,495 less than this car. Dealer: Position One Motor Company in Leatherhead. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-64a44a3d684b
- 2018 BMW X3 M Sport, 3.0 diesel SUV, blue. Mileage: 91,882 miles. Price: £19,000, £3,990 less than this car. Dealer: Newton and Lee Automotive in Consett. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-55297dd8aeab
- The nearest: 2018 BMW X3 M Sport, 3.0 diesel SUV, blue, 4 miles from this car. Mileage: 60,300 miles. Price: £21,490, £1,500 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-6237c7e30142
Browse all BMW X3 cars for sale · 2018 BMW X3 price guide
More like this
- Used BMW X3 M Sport prices
- Used BMW X3 for sale under £30,000
- Used diesel BMW X3 for sale
- Used BMW X3 for sale near Stamford
Photos
51 photos of this car are on its AskCar page.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.