2023 BMW 3 Series 3.0 M340d MHT

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340d MHT Touring Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
• Year: 2023
• Mileage: 21,245 miles
• Fuel: Diesel, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 21,245 miles on the clock, this 2023 BMW 3 Series has done roughly 12,900 fewer miles than a typical 2023 BMW 3 Series. The dealer is asking £46,950, which is £1,285 above the AskCar estimate of £45,665. To work out the AskCar estimate, we analyse UK dealer adverts for 6,862 BMW 3 Series cars across different ages and specifications. We have tracked this advert for 39 days. The seller is Cotswold Bmw Cheltenham, based in Cheltenham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,285 (2%) over the AskCar estimate of £45,665.

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 6,862 priced BMW 3 Series adverts across different ages and specifications, as of 4 November 2026.

A 2023 BMW 3 Series with the 3.0 diesel engine is typically advertised at £40,000: the median of the 69 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 BMW 3 Series has been on sale for at least 39 days.

Price history

AskCar first saw this advert on 26 September 2026 at £46,950. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 12,900 miles lower than the median mileage of a 2023 BMW 3 Series on AskCar.