2023 BMW X4 3.0 M40d MHT

Overview

• Make: BMW
• Model: X4
• Version: 3.0 M40d MHT Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
• Year: 2023
• Mileage: 50,079 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 180 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 50,079 miles, this 2023 BMW X4 has covered about 22,700 more miles than other 2023 BMW X4 cars. Its asking price of £37,899 is £478 above the AskCar estimate of £37,421. The AskCar estimate uses UK dealer asking prices, including 655 BMW X4 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 49 days ago. Its asking price has since fallen by £2,100. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Halliwell Jones Southport BMW, based in Southport. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £478 (1%) over the AskCar estimate of £37,421.

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 655 priced BMW X4 adverts across different ages and specifications, as of 4 November 2026.

A 2023 BMW X4 with the 3.0 diesel engine is typically advertised at £41,000: the median of the 15 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 BMW X4 has been on sale for at least 49 days.

Price history

AskCar first saw this advert on 16 September 2026 at £39,999. Its asking price is now £37,899, £2,100 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 16 September 2026: £39,999
• 9 October 2026: £39,799
• 14 October 2026: £38,999
• 21 October 2026: £38,499
• 27 October 2026: £38,299
• 30 October 2026: £37,999
• 4 November 2026: £37,899

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 13 August 2027.

It has had one MOT, on 14 August 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 50,080 miles, which matches the advertised 50,079 miles.

Advertised mileage is about 22,700 miles higher than the median mileage of a 2023 BMW X4 on AskCar.