2023 BMW 3 Series 3.0 M340d MHT

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340d MHT Touring Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
• Year: 2023
• Mileage: 41,089 miles
• Fuel: Diesel, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 3 Series is advertised with 41,089 miles, approximately 6,400 above the typical mileage for its age. The dealer is asking £39,495, which is £1,503 below the AskCar estimate of £40,998. To work out the AskCar estimate, we analyse UK dealer adverts for 6,742 BMW 3 Series cars across different ages and specifications. We first recorded this advert 34 days ago, and its asking price has since fallen by £10,500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Hailsham BMW, based in Hailsham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,503 (3%) under the AskCar estimate of £40,998.

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 6,742 priced BMW 3 Series adverts across different ages and specifications, as of 2 November 2026.

A 2023 BMW 3 Series with the 3.0 diesel engine is typically advertised at £39,500: the median of the 68 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2023 BMW 3 Series has been on sale for at least 34 days.

Price history

AskCar first saw this advert on 29 September 2026 at £49,995. Its asking price is now £39,495, £10,500 less. The latest price cut was seen on 25 October 2026.

Price changes recorded:

• 29 September 2026: £49,995
• 7 October 2026: £43,995
• 14 October 2026: £42,995
• 20 October 2026: £41,395
• 25 October 2026: £39,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 29 June 2027.

It has had one MOT, on 2 June 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 37,806 miles, which matches the advertised 41,089 miles.

Advertised mileage is about 6,400 miles higher than the median mileage of a 2023 BMW 3 Series on AskCar.