2023 BMW 3 Series 3.0 M340d MHT
Version: 3.0 M340d MHT Auto 4WD Euro 6 (s/s) 4dr (335 bhp)
Price: £37,999. Fair price: £1,981 (4%) under the AskCar estimate of £39,980, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,652 priced BMW 3 Series adverts on AskCar as of 1 November 2026.
AskCar lists 6,914 used BMW 3 Series from 2,613 UK dealerships, as of 1 November 2026.
Overview
- Make
- BMW
- Model
- 3 Series
- Version
- 3.0 M340d MHT Auto 4WD Euro 6 (s/s) 4dr (335 bhp)
- Mileage
- 22,921 miles
- Year
- 2023
- Fuel type
- Diesel
- Body type
- Saloon
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 335 bhp
- Seats
- 5
- CO2
- 159 g/km
- Colour
- Grey
- Doors
- 4
- Driven wheels
- Four Wheel Drive
- Engine badge
- M340d; MHT
- Hybrid type
- Mild hybrid
- Emissions standard
- Euro 6
About this car
This 2023 BMW 3 Series has covered 22,921 miles, around 12,200 fewer miles than is typical for its age. The AskCar estimate for this car is £39,980. It is priced at £37,999, which is £1,981 below that estimate. The AskCar estimate draws on 6,652 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert today. Its advertised mileage is consistent with the latest recorded MOT reading. The seller is Halliwell Jones Chester BMW, based in Chester.
Stock data as of 1 November 2026.
Price history
AskCar first saw this advert on 1 November 2026.
| Date observed | Asking price |
|---|---|
| 1 November 2026 | £37,999 |
Price and mileage comparison
Fair price: £1,981 (4%) under the AskCar estimate of £39,980.
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 6,652 priced BMW 3 Series adverts across different ages and specifications, as of 1 November 2026.
Advertised mileage is about 12,200 miles lower than the median mileage of a 2023 BMW 3 Series on AskCar.
The advertised mileage is consistent with the last MOT reading.
Other matching cars
40 other 2023 BMW 3 Series automatic diesel cars are for sale at UK dealers from £25,200 to £46,950, as of 1 November 2026.
The 5 cheapest:
- 2023 BMW 3 Series. Price: £25,200. Mileage: 47,589 miles. Dealer: CarTime in Bury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2023-f1156759ee60
- 2023 BMW 3 Series. Price: £27,995. Mileage: 39,750 miles. Dealer: Steve Watson Cars in Carlisle. AskCar page: https://askcar.co.uk/car/bmw-3-series-2023-6dfd154ad1e6
- 2023 BMW 3 Series. Price: £29,475. Mileage: 84,955 miles. Dealer: Group 1 Borehamwood BMW in Borehamwood. AskCar page: https://askcar.co.uk/car/bmw-3-series-2023-28c72140b7b4
- 2023 BMW 3 Series. Price: £31,998. Mileage: 55,219 miles. Dealer: Eastern Western Motor Group Grassicks BMW in Perth. AskCar page: https://askcar.co.uk/car/bmw-3-series-2023-9f396bba6576
- 2023 BMW 3 Series. Price: £33,799. Mileage: 28,000 miles. Dealer: J.L.A.N Motor Group in Birmingham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2023-c7349db5eeaa
The 40 matching cars have covered 14,902 to 90,000 miles, compared with 22,921 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
27 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 1 November 2026, AskCar lists 578,994 cars and vans from 12,654 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.