2023 BMW 3 Series 3.0 M340i MHT

Price: £36,995. Fair price: £1,195 (3%) under the AskCar estimate of £38,190, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,822 priced BMW 3 Series adverts on AskCar as of 8 November 2026.

AskCar lists 7,130 used BMW 3 Series from 2,708 UK dealerships, as of 8 November 2026.

Overview

  • Make: BMW
  • Model: 3 Series
  • Version: 3.0 M340i MHT Auto 4WD Euro 6 (s/s) (369 bhp)
  • Year: 2023
  • Mileage: 46,327 miles
  • Fuel: Petrol, mild hybrid
  • Body: 5 seats
  • Engine: 3.0 litres, 369 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Grey
  • CO2: 187 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 46,327 miles, this 2023 BMW 3 Series has covered about 12,400 more miles than other 2023 BMW 3 Series cars. Its asking price of £36,995 is £1,195 below the AskCar estimate of £38,190. The AskCar estimate uses 6,822 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 74 days ago. Its asking price has since fallen by £3,000. The government's MOT record matches its advertised mileage. You can find this car at Berry Thames Ditton BMW in Surbiton. 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: £1,195 (3%) under the AskCar estimate of £38,190.

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 petrol 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 74 days.

Price history

AskCar first saw this advert on 26 August 2026 at £39,995. Its asking price is now £36,995, £3,000 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

  • 26 August 2026: £39,995
  • 6 September 2026: £38,700
  • 15 September 2026: £39,995
  • 19 September 2026: £38,700
  • 27 September 2026: £37,995
  • 7 October 2026: £37,500
  • 21 October 2026: £36,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 21 April 2027.

It has had one MOT, on 27 March 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 43,475 miles, which matches the advertised 46,327 miles.

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

Browse all BMW 3 Series cars for sale · 2023 BMW 3 Series price guide

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Photos

28 photos of this car are on its AskCar page.

As of 8 November 2026, AskCar lists 595,762 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.