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: 32,999 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 32,999 miles, around 3,600 more miles than is typical for its age. The dealer is asking £40,995, which is £2,399 below the AskCar estimate of £43,394. To work out the AskCar estimate, we analyse UK dealer adverts for 3,051 BMW X3 cars across different ages and specifications. The asking price is now £2,000 lower than when we first recorded the advert 56 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Cambridge BMW, based in Cambridge. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,399 (5%) under the AskCar estimate of £43,394.

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 3,051 priced BMW X3 adverts across different ages and specifications, as of 10 November 2026.

A 2023 BMW X3 with the 3.0 petrol engine is typically advertised at £41,100: the median of the 76 for sale on AskCar, as of 10 November 2026.

Time on sale

This 2023 BMW X3 has been on sale for at least 56 days.

Price history

AskCar first saw this advert on 15 September 2026 at £42,995. Its asking price is now £40,995, £2,000 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 15 September 2026: £42,995
• 24 September 2026: £42,990
• 6 October 2026: £42,795
• 13 October 2026: £42,495
• 21 October 2026: £41,995
• 29 October 2026: £40,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: valid until 7 September 2027.

It has had one MOT, on 10 August 2026, and passed.

Advisories at the latest test: offside front tyre worn close to legal limit/worn on edge.

Mileage at that test: 32,152 miles, which matches the advertised 32,999 miles.

Advertised mileage is about 3,600 miles higher than the median mileage of a 2023 BMW X3 on AskCar.