2023 BMW 3 Series 3.0 M340d MHT

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340d MHT Auto 4WD Euro 6 (s/s) 4dr (335 bhp)
• Year: 2023
• Mileage: 24,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 159 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 3 Series is advertised with 24,000 miles, approximately 9,900 below the typical mileage for its age. Priced at £39,950, it is advertised £33 below the AskCar estimate of £39,983. To work out the AskCar estimate, we analyse UK dealer adverts for 6,822 BMW 3 Series cars across different ages and specifications. Since we first spotted the advert 86 days ago, the asking price has dropped by £1,000. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Sycamore BMW in Peterborough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £33 (under 1%) under the AskCar estimate of £39,983.

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 6,822 priced BMW 3 Series adverts across different ages and specifications, as of 8 November 2026.

A 2023 BMW 3 Series with the 3.0 diesel engine is typically advertised at £39,500: the median of the 69 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2023 BMW 3 Series has been on sale for at least 86 days.

Price history

AskCar first saw this advert on 14 August 2026 at £40,950. Its asking price is now £39,950, £1,000 less. The latest price cut was seen on 8 October 2026.

Price changes recorded:

• 14 August 2026: £40,950
• 8 October 2026: £39,950

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 24 March 2027.

It has had one MOT, on 25 March 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 20,201 miles, which matches the advertised 24,000 miles.

Advertised mileage is about 9,900 miles lower than the median mileage of a 2023 BMW 3 Series on AskCar.