2018 BMW X3 3.0 M40d
Price: £30,995. Fair price: £503 (1%) over the AskCar estimate of £30,492, 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
- Version: 3.0 M40d Auto 4WD Euro 6 (s/s) 5dr (322 bhp)
- Year: 2018
- Mileage: 28,050 miles
- Fuel: Diesel
- Body: SUV, 5 doors, 5 seats
- Engine: 3.0 litres, 322 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Black
- CO2: 169 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 28,050 miles, this 2018 BMW X3 has covered about 36,800 fewer miles than other 2018 BMW X3 cars. Priced at £30,995, it is advertised £503 above the AskCar estimate of £30,492. The AskCar estimate draws on 3,034 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 49 days ago. Its asking price has since fallen by £1,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Norman Motors (Poole), based in Poole. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Fair price: £503 (1%) over the AskCar estimate of £30,492.
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 49 days.
Price history
AskCar first saw this advert on 16 September 2026 at £31,995. Its asking price is now £30,995, £1,000 less. The latest price cut was seen on 14 October 2026.
Price changes recorded:
- 16 September 2026: £31,995
- 14 October 2026: £30,995
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 20 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: 26,479 miles, which matches the advertised 28,050 miles.
Advertised mileage is about 36,800 miles lower than the median mileage of a 2018 BMW X3 on AskCar.
Browse all BMW X3 cars for sale · 2018 BMW X3 price guide
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Photos
53 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.