2023 BMW 3 Series 3.0 M340i MHT
Price: £43,000. Fair price: £1,800 (4%) over the AskCar estimate of £41,200, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,864 priced BMW 3 Series adverts on AskCar as of 10 November 2026.
AskCar lists 7,127 used BMW 3 Series from 2,713 UK dealerships, as of 10 November 2026.
Overview
- Make: BMW
- Model: 3 Series
- Version: 3.0 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
- Year: 2023
- Mileage: 23,675 miles
- Fuel: Petrol, mild hybrid
- Body: Saloon, 4 doors, 5 seats
- Engine: 3.0 litres, 369 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Black
- CO2: 182 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2023 BMW 3 Series is advertised with 23,675 miles, approximately 9,700 below the typical mileage for its age. The AskCar estimate for this car is £41,200. It is priced at £43,000, which is £1,800 above that estimate. The AskCar estimate draws on 6,864 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 69 days ago. Its asking price has since fallen by £1,950. The seller is Sytner High Wycombe BMW, based in High Wycombe. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 10 November 2026.
Sytner High Wycombe BMW is rated 4.4 out of 5 on Google.
Price
Fair price: £1,800 (4%) over the AskCar estimate of £41,200.
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 6,864 priced BMW 3 Series adverts across different ages and specifications, as of 10 November 2026.
A 2023 BMW 3 Series with the 3.0 petrol engine is typically advertised at £39,800: the median of the 69 for sale on AskCar, as of 10 November 2026.
Time on sale
This 2023 BMW 3 Series has been on sale for at least 69 days.
Price history
AskCar first saw this advert on 2 September 2026 at £44,950. Its asking price is now £43,000, £1,950 less. The latest price cut was seen on 3 November 2026.
Price changes recorded:
- 2 September 2026: £44,950
- 6 October 2026: £44,500
- 13 October 2026: £44,000
- 3 November 2026: £43,000
Mileage and MOT
Advertised mileage is about 9,700 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
20 photos of this car are on its AskCar page.
As of 10 November 2026, AskCar lists 591,054 cars and vans from 12,888 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.