2023 BMW X3 3.0 M40i MHT

Overview

• Make: BMW
• Model: X3
• Version: 3.0 M40i MHT Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
• Year: 2023
• Mileage: 42,213 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 42,213 miles, around 12,800 more miles than is typical for its age. The dealer is asking £42,490, which is £928 above the AskCar estimate of £41,562. To work out the AskCar estimate, we analyse UK dealer adverts for 3,099 BMW X3 cars across different ages and specifications. Since we first spotted the advert 37 days ago, the asking price has dropped by £490. Its advertised mileage matches the government's MOT record. The seller is Bowker BMW Blackburn, based in Blackburn. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £928 (2%) over the AskCar estimate of £41,562.

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 37 days.

Price history

AskCar first saw this advert on 30 September 2026 at £42,980. Its asking price is now £42,490, £490 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 30 September 2026: £42,980
• 22 October 2026: £42,940
• 23 October 2026: £42,740
• 3 November 2026: £42,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 4 January 2027.

It has had one MOT, on 22 December 2025, and passed.

Advisories at the latest test: offside front tyre worn close to legal limit/worn on edge 2mm outer edges 0mm; offside front tyre slightly damaged/cracking or perishing perished.

Mileage at that test: 31,829 miles, which matches the advertised 42,213 miles.

Advertised mileage is about 12,800 miles higher than the median mileage of a 2023 BMW X3 on AskCar.