2023 BMW X3 3.0 M40i MHT
Version: 3.0 M40i MHT Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
Price: £46,000. Fair price: £1,064 (2%) under the AskCar estimate of £47,064, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,003 priced BMW X3 adverts on AskCar as of 31 October 2026.
AskCar lists 3,056 used BMW X3 from 1,192 UK dealerships, as of 31 October 2026.
Overview
- Make
- BMW
- Model
- X3
- Version
- 3.0 M40i MHT Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
- Mileage
- 16,515 miles
- Year
- 2023
- Fuel type
- Petrol
- Body type
- SUV
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 355 bhp
- Seats
- 5
- CO2
- 207 g/km
- Colour
- Blue
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Engine badge
- M40i; MHT
- Hybrid type
- Mild hybrid
- Emissions standard
- Euro 6
About this car
This 2023 BMW X3 is advertised with 16,515 miles, approximately 13,000 below the typical mileage for its age. Its asking price of £46,000 is £1,064 below the AskCar estimate of £47,064. The AskCar estimate draws on 3,003 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. Its recorded MOT is valid until 29 September 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Sytner Cardiff BMW, based in Cardiff.
Stock data as of 31 October 2026.
Price history
AskCar first saw this advert on 31 October 2026.
| Date observed | Asking price |
|---|---|
| 31 October 2026 | £46,000 |
Price and mileage comparison
Fair price: £1,064 (2%) under the AskCar estimate of £47,064.
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 3,003 priced BMW X3 adverts across different ages and specifications, as of 31 October 2026.
Advertised mileage is about 13,000 miles lower than the median mileage of a 2023 BMW X3 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 29 September 2027. 16,188 miles at the last test.
Other matching cars
25 other 2023 BMW X3 automatic petrol cars are for sale at UK dealers from £36,880 to £52,995, as of 31 October 2026.
The 5 cheapest:
- 2023 BMW X3. Price: £36,880. Mileage: 61,100 miles. Dealer: Monza Performance in Aylesford. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-142e4aa1b35e
- 2023 BMW X3. Price: £37,995. Mileage: 29,000 miles. Dealer: Matt Johnson Prestige in Barrow-in-Furness. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-625bfc494a9a
- 2023 BMW X3. Price: £39,395. Mileage: 41,420 miles. Dealer: V12 Sports & Classics Ltd - Hinckley in Hinckley. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-e10c523e1e76
- 2023 BMW X3. Price: £40,995. Mileage: 32,999 miles. Dealer: Group 1 Cambridge BMW in Cambridge. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-bbacee832a06
- 2023 BMW X3. Price: £41,790. Mileage: 34,200 miles. Dealer: Stratstone BMW Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-8b1022e36fca
The 25 matching cars have covered 6,963 to 61,100 miles, compared with 16,515 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 · 2023 BMW X3 price guide
More like this
How to contact the dealer and its opening hours are on this AskCar page.
As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.