2018 BMW X3
3.0 M40i Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
£30,000
Fair price: within 8% of the typical £30,287 for this model, age and mileage, drawing on 2,996 adverts of this make and model.
Overview
- Make
- BMW
- Model
- X3
- Version
- 3.0 M40i Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
- Mileage
- 33,530 miles
- Year
- 2018
- Fuel type
- Petrol
- Body type
- SUV
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 355 bhp
- Seats
- 5
- CO2
- 188 g/km
- Colour
- Blue
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Engine badge
- M40i
- Emissions standard
- Euro 6
About this car
This 2018 BMW X3 is advertised with 33,530 miles, approximately 29,900 below the typical mileage for its age. The dealer is asking £30,000, which is £287 below our market estimate of £30,287. Our estimate draws on 2,996 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 5 days ago. Its recorded MOT is valid until 4 December 2026, and its advertised mileage is consistent with the latest MOT reading. The seller is Sytner Cardiff BMW, based in Cardiff.
Stock data from 20 October 2026.
Price history
First seen on 16 October 2026, 5 days ago. Advert duration calculated on 21 October 2026.
| Date observed | Asking price |
|---|---|
| 16 October 2026 | £30,000 |
| 20 October 2026 | £30,000 |
Price and mileage comparison
Estimated market asking price: £30,287. The asking price is £287 below this estimate.
The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.
The pricing calculation includes 2,996 adverts of this make and model across different ages and specifications.
Advertised mileage is approximately 29,900 miles lower than typical for a 2018 BMW X3.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT valid until 4 December 2026. 30,979 miles at the last test.
3 other cars with the same year, trim, gearbox and fuel are for sale from £19,995 to £24,995.
| Asking price | Mileage |
|---|---|
| £19,995 | 43,500 miles |
| £19,995 | 102,000 miles |
| £24,995 | 70,000 miles |
These cars have covered 43,500–102,000 miles, compared with 33,530 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.
Browse all BMW X3 cars for sale · 2018 BMW X3 price guide
Similar cars for less
- 2019 BMW X3, 24,719 miles, £18,999, £5,401 under typical, Greenford
- 2022 BMW X3, 29,204 miles, £26,495, £6,699 under typical, Farnham
- 2020 BMW X3, 19,315 miles, £27,999, £6,147 under typical, Barnsley
Dealer
Sytner Cardiff BMW, Cardiff. Across the dealer network: 140 branches, 10,337 cars for sale.
Dealer postcode: CF11 8TT.
Dealer opening hours
- Monday
- 09:30-18:30
- Tuesday
- 09:30-18:30
- Wednesday
- 09:30-18:30
- Thursday
- 09:30-18:30
- Friday
- 09:30-18:30
- Saturday
- 09:00-18:30
- Sunday
- 10:00-16:00