2023 BMW 3 Series 3.0 M340d MHT
Price: £34,990. Fair price: £1,207 (3%) under the AskCar estimate of £36,197, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,886 priced BMW 3 Series adverts on AskCar as of 7 November 2026.
AskCar lists 7,202 used BMW 3 Series from 2,724 UK dealerships, as of 7 November 2026.
Overview
- Make: BMW
- Model: 3 Series
- Version: 3.0 M340d MHT Auto 4WD Euro 6 (s/s) 4dr (335 bhp)
- Year: 2023
- Mileage: 42,000 miles
- Fuel: Diesel, mild hybrid
- Body: Saloon, 4 doors, 5 seats
- Engine: 3.0 litres, 335 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 159 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2023 BMW 3 Series is advertised with 42,000 miles, approximately 7,400 above the typical mileage for its age. The AskCar estimate for this car is £36,197. It is priced at £34,990, which is £1,207 below that estimate. The AskCar estimate uses 6,886 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 101 days ago, and its asking price has since fallen by £1,000. You can find this car at Automotive Cars in Keighley. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Fair price: £1,207 (3%) under the AskCar estimate of £36,197.
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 6,886 priced BMW 3 Series adverts across different ages and specifications, as of 7 November 2026.
A 2023 BMW 3 Series with the 3.0 diesel engine is typically advertised at £39,500: the median of the 69 for sale on AskCar, as of 7 November 2026.
Time on sale
This 2023 BMW 3 Series has been on sale for at least 101 days.
Price history
AskCar first saw this advert on 29 July 2026 at £35,990. Its asking price is now £34,990, £1,000 less. The latest price cut was seen on 18 October 2026.
Price changes recorded:
- 29 July 2026: £35,990
- 18 October 2026: £34,990
Mileage and MOT
Advertised mileage is about 7,400 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
More like this
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- Used BMW 3 Series for sale near Keighley
Photos
26 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 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.