2023 BMW 4 Series 3.0 430d MHT M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 3.0 430d MHT M Sport Auto RWD Euro 6 (s/s) 2dr (282 bhp)
• Year: 2023
• Mileage: 42,657 miles
• Fuel: Diesel, mild hybrid
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres, 282 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 4 Series M Sport has covered 42,657 miles, around 14,300 more miles than is typical for its age. The AskCar estimate for this car is £29,860. It is priced at £28,995, which is £865 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,814 BMW 4 Series cars across different ages and specifications. The asking price is now £2,995 lower than when we first recorded the advert 81 days ago. Its advertised mileage matches the government's MOT record. It is advertised by Partridge BMW in Eastleigh. 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: £865 (2%) under the AskCar estimate of £29,860.

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 1,814 priced BMW 4 Series adverts across different ages and specifications, as of 4 November 2026.

A 2023 BMW 4 Series with the 3.0 diesel engine is typically advertised at £36,500: the median of the 39 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 BMW 4 Series has been on sale for at least 81 days.

Price history

AskCar first saw this advert on 15 August 2026 at £31,990. Its asking price is now £28,995, £2,995 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 15 August 2026: £31,990
• 2 September 2026: £31,491
• 10 September 2026: £31,192
• 17 September 2026: £30,993
• 23 September 2026: £30,694
• 7 October 2026: £30,395
• 15 October 2026: £29,995
• 28 October 2026: £29,495
• 4 November 2026: £28,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 30 March 2027.

It has had one MOT, on 17 March 2026, and passed.

Advisories at the latest test: rear brake pad(s) wearing thin.

Mileage at that test: 38,349 miles, which matches the advertised 42,657 miles.

Advertised mileage is about 14,300 miles higher than the median mileage of a 2023 BMW 4 Series on AskCar.

Similar cars

3 other 2023 BMW 4 Series M Sport 3.0 diesel automatic convertibles are for sale at UK dealers, from £24,990 to £30,390, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW 4 Series M Sport, 3.0 diesel convertible, black. Mileage: 50,650 miles. Price: £27,495, £1,500 less than this car. Dealer: V12 Sports & Classics Ltd - Wolverhampton in Wolverhampton. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-e987c0919e4f
• 2023 BMW 4 Series M Sport, 3.0 diesel convertible, blue. Mileage: 31,295 miles. Price: £30,390, £1,395 more than this car. Dealer: Stratstone Bmw Derby in Derby. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-2e40a1c59b57
• 2023 BMW 4 Series M Sport, 3.0 diesel convertible, grey. Mileage: 75,000 miles. Price: £24,990, £4,005 less than this car. Dealer: Benz Bavarian in Derby. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-54919d890a84