2023 BMW 3 Series 3.0 M340i MHT

Price: £45,995. Fair price: £1,546 (3%) over the AskCar estimate of £44,449, 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 Touring Auto 4WD Euro 6 (s/s) 5dr (369 bhp)
  • Year: 2023
  • Mileage: 27,500 miles
  • Fuel: Petrol, mild hybrid
  • Body: Estate, 5 doors, 5 seats
  • Engine: 3.0 litres, 369 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Grey
  • CO2: 189 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 27,500 miles on the clock, this 2023 BMW 3 Series has done roughly 6,400 fewer miles than a typical 2023 BMW 3 Series. Priced at £45,995, it is advertised £1,546 above the AskCar estimate of £44,449. To work out the AskCar estimate, we analyse UK dealer adverts for 6,822 BMW 3 Series cars across different ages and specifications. It first appeared in our advert records 9 days ago. The government's MOT record matches its advertised mileage. You can find this car at Cult Automotive in Robertsbridge. 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: £1,546 (3%) over the AskCar estimate of £44,449.

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 9 days.

Price history

AskCar first saw this advert on 30 October 2026 at £45,995. Its asking price has not changed.

Mileage and MOT

It has had one MOT, on 22 October 2026, and failed.

It failed on: offside front side repeater not working in mirror; nearside front outer track rod end ball joint dust cover insecure so that it no longer prevents the ingress of dirt.

Advisories at the latest test: nearside rear jacking block missing; nearside front inner tyre worn close to legal limit/worn on edge; offside front inner tyre worn close to legal limit/worn on edge.

Mileage at that test: 26,922 miles, which matches the advertised 27,500 miles.

Advertised mileage is about 6,400 miles lower 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

72 photos of this car are on its AskCar page.

As of 8 November 2026, AskCar lists 595,629 cars and vans from 12,891 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.