2023 BMW 3 Series 3.0 M340i MHT
Version: 3.0 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
Price: £39,999. Fair price: £57 (under 1%) under the AskCar estimate of £40,056, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,718 priced BMW 3 Series adverts on AskCar as of 31 October 2026.
AskCar lists 6,973 used BMW 3 Series from 2,626 UK dealerships, as of 31 October 2026.
Overview
- Make
- BMW
- Model
- 3 Series
- Version
- 3.0 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
- Mileage
- 30,109 miles
- Year
- 2023
- Fuel type
- Petrol
- Body type
- Saloon
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 369 bhp
- Seats
- 5
- CO2
- 182 g/km
- Colour
- Grey
- Doors
- 4
- Driven wheels
- Four Wheel Drive
- Engine badge
- M340i; MHT
- Hybrid type
- Mild hybrid
- Emissions standard
- Euro 6
About this car
This 2023 BMW 3 Series is advertised with 30,109 miles, approximately 5,100 below the typical mileage for its age. Its asking price of £39,999 is £57 below the AskCar estimate of £40,056. To work out the AskCar estimate, we analyse UK dealer adverts for 6,718 BMW 3 Series cars across different ages and specifications. It first appeared in our advert records today. MOT records show an expiry date of 29 June 2027, and the latest recorded mileage is consistent with the advert. The seller is Halliwell Jones Wilmslow BMW, based in Wilmslow.
Stock data as of 31 October 2026.
Price history
AskCar first saw this advert on 31 October 2026.
| Date observed | Asking price |
|---|---|
| 31 October 2026 | £39,999 |
Price and mileage comparison
Fair price: £57 (under 1%) under the AskCar estimate of £40,056.
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 6,718 priced BMW 3 Series adverts across different ages and specifications, as of 31 October 2026.
Advertised mileage is about 5,100 miles lower than the median mileage of a 2023 BMW 3 Series on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 29 June 2027. 24,645 miles at the last test.
Other matching cars
26 other 2023 BMW 3 Series automatic petrol cars are for sale at UK dealers from £22,750 to £47,995, as of 31 October 2026.
The 5 cheapest:
- 2023 BMW 3 Series. Price: £22,750. Mileage: 44,818 miles. Dealer: Greenhous Telford in Telford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2023-fe8de0fdcd7f
- 2023 BMW 3 Series. Price: £24,490. Mileage: 39,371 miles. Dealer: Brayleys Cars Brayley Honda Orpington in Orpington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2023-3316b7ceb3a6
- 2023 BMW 3 Series. Price: £34,099. Mileage: 69,865 miles. Dealer: Parkway. AskCar page: https://askcar.co.uk/car/bmw-3-series-2023-8dbcfc239033
- 2023 BMW 3 Series. Price: £34,193. Mileage: 73,076 miles. Dealer: Group 1 Bedford BMW in Bedford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2023-725f391d8749
- 2023 BMW 3 Series. Price: £35,683. Mileage: 41,096 miles. Dealer: Vines of Redhill BMW in Redhill. AskCar page: https://askcar.co.uk/car/bmw-3-series-2023-a1ac866b93f7
The 26 matching cars have covered 6,996 to 73,076 miles, compared with 30,109 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all BMW 3 Series cars for sale · 2023 BMW 3 Series price guide
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Photos
1 photo of this car is on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.