2023 BMW X3 3.0 M40i MHT
Price: £36,880. Fair price: £606 (1%) under the AskCar estimate of £37,486, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,099 priced BMW X3 adverts on AskCar as of 6 November 2026.
AskCar lists 3,164 used BMW X3 from 1,233 UK dealerships, as of 6 November 2026.
Overview
- Make: BMW
- Model: X3
- Version: 3.0 M40i MHT Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
- Year: 2023
- Mileage: 61,100 miles
- Fuel: Petrol, mild hybrid
- Body: SUV, 5 doors, 5 seats
- Engine: 3.0 litres, 355 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 207 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2023 BMW X3 has covered 61,100 miles, around 31,700 more miles than is typical for its age. The AskCar estimate for this car is £37,486. It is priced at £36,880, which is £606 below that estimate. The AskCar estimate draws on 3,099 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 17 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Monza Performance in Aylesford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Fair price: £606 (1%) under the AskCar estimate of £37,486.
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 3,099 priced BMW X3 adverts across different ages and specifications, as of 6 November 2026.
A 2023 BMW X3 with the 3.0 petrol engine is typically advertised at £41,000: the median of the 76 for sale on AskCar, as of 6 November 2026.
Time on sale
This 2023 BMW X3 has been on sale for at least 17 days.
Price history
AskCar first saw this advert on 20 October 2026 at £36,880. 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 6 November 2026: valid until 15 April 2027.
It has had 2 MOTs. The latest, on 16 April 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 55,381 miles, which matches the advertised 61,100 miles.
Advertised mileage is about 31,700 miles higher 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
35 photos of this car are on its AskCar page.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.