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) (335 bhp)
• Year: 2023
• Mileage: 45,800 miles
• Fuel: Diesel, mild hybrid
• Body: 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 45,800 miles, this 2023 BMW 3 Series has covered about 12,400 more miles than other 2023 BMW 3 Series cars. Its asking price of £35,949 is £3,028 below the AskCar estimate of £38,977. The AskCar estimate uses 6,814 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 33 days ago, and its asking price has since fallen by £6,051. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is MINI UK at Vertu Bridgwater MINI, based in Bridgwater. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £3,028 (7%) under the AskCar estimate of £38,977.

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 6,814 priced BMW 3 Series adverts across different ages and specifications, as of 9 November 2026.

A 2023 BMW 3 Series with the 3.0 diesel engine is typically advertised at £39,500: the median of the 71 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2023 BMW 3 Series has been on sale for at least 33 days.

Price history

AskCar first saw this advert on 7 October 2026 at £42,000. Its asking price is now £35,949, £6,051 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 7 October 2026: £42,000
• 13 October 2026: £37,118
• 14 October 2026: £36,577
• 15 October 2026: £36,449
• 7 November 2026: £35,949

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 15 March 2027.

It has had one MOT, on 26 February 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 34,828 miles, which matches the advertised 45,800 miles.

Advertised mileage is about 12,400 miles higher than the median mileage of a 2023 BMW 3 Series on AskCar.