2018 BMW X3 2.0 20d M Sport
Price: £19,730. Fair price: £289 (1%) under the AskCar estimate of £20,019, 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: 2.0 20d M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
- Year: 2018
- Mileage: 56,662 miles
- Fuel: Diesel
- Body: SUV, 5 doors, 5 seats
- Engine: 2.0 litres, 187 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 144 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 56,662 miles on the clock, this 2018 BMW X3 M Sport has done roughly 8,200 fewer miles than a typical 2018 BMW X3. The AskCar estimate for this car is £20,019. It is priced at £19,730, which is £289 below that estimate. The AskCar estimate draws on 3,034 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 10 days. The government's MOT record matches its advertised mileage. You can find this car at SKV Motors in Romford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Fair price: £289 (1%) under the AskCar estimate of £20,019.
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 10 days.
Price history
AskCar first saw this advert on 25 October 2026 at £19,730. 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 4 November 2026: valid until 17 December 2026.
It has had 5 MOTs. The latest, on 16 December 2025, passed.
There were no advisories at the latest test.
Mileage at that test: 54,226 miles, which matches the advertised 56,662 miles.
Advertised mileage is about 8,200 miles lower than the median mileage of a 2018 BMW X3 on AskCar.
Similar cars
79 other 2018 BMW X3 M Sport 2.0 diesel automatic SUVs are for sale at UK dealers, from £12,950 to £23,289, as of 4 November 2026.
The 3 closest to this car in mileage:
- 2018 BMW X3 M Sport, 2.0 diesel SUV, silver. Mileage: 56,750 miles. Price: £18,990, £740 less than this car. Dealer: Marvello Trading in West Thurrock. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-f21e2a7bf33e
- 2018 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 55,433 miles. Price: £18,600, £1,130 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-7008062fcad3
- 2018 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 58,200 miles. Price: £19,990, £260 more than this car. Dealer: Stratstone BMW Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-40549d4d0f93
Browse all BMW X3 cars for sale · 2018 BMW X3 price guide
More like this
- Used BMW X3 M Sport prices
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- Used diesel BMW X3 for sale
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Photos
46 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.