2023 BMW X3 3.0 M40i MHT
Price: £37,995. Good value: £6,610 (14%) under the AskCar estimate of £44,605, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,992 priced BMW X3 adverts on AskCar as of 2 November 2026.
AskCar lists 3,072 used BMW X3 from 1,209 UK dealerships, as of 2 November 2026.
Overview
- Make: BMW
- Model: X3
- Version: 3.0 M40i MHT Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
- Year: 2023
- Mileage: 29,000 miles
- Fuel: Petrol, mild hybrid
- Body: SUV, 5 doors, 5 seats
- Engine: 3.0 litres, 355 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Black
- CO2: 207 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
The advertised mileage for this 2023 BMW X3 is 29,000 miles. Its asking price of £37,995 is £6,610 below the AskCar estimate of £44,605. The AskCar estimate uses 2,992 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 100 days ago, and its asking price has since fallen by £4,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Matt Johnson Prestige in Barrow-in-Furness. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Good value: £6,610 (14%) under the AskCar estimate of £44,605.
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 2,992 priced BMW X3 adverts across different ages and specifications, as of 2 November 2026.
A 2023 BMW X3 with the 3.0 petrol engine is typically advertised at £41,600: the median of the 68 for sale on AskCar, as of 2 November 2026.
Time on sale
This 2023 BMW X3 has been on sale for at least 100 days.
Price history
AskCar first saw this advert on 25 July 2026 at £41,995. Its asking price is now £37,995, £4,000 less. The latest price cut was seen on 31 October 2026.
Price changes recorded:
- 25 July 2026: £41,995
- 16 September 2026: £39,995
- 31 October 2026: £37,995
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 8 January 2027.
It has had one MOT, on 2 January 2026, and passed.
There were no advisories at the latest test.
Mileage at that test: 25,627 miles, which matches the advertised 29,000 miles.
Advertised mileage is about 900 miles lower than the median mileage of a 2023 BMW X3 on AskCar.
Browse all BMW X3 cars for sale · 2023 BMW X3 price guide
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Photos
38 photos of this car are on its AskCar page.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.