2023 BMW 3 Series 3.0 M340d MHT

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340d MHT Auto 4WD Euro 6 (s/s) 4dr (335 bhp)
• Year: 2023
• Mileage: 25,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 159 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW 3 Series is advertised with 25,000 miles, approximately 9,200 below the typical mileage for its age. The AskCar estimate for this car is £39,570. It is priced at £40,999, which is £1,429 above that estimate. The AskCar estimate draws on 6,862 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. The seller is Lookers BMW Crewe, based in Crewe. 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: £1,429 (3%) over the AskCar estimate of £39,570.

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

AskCar first saw this 2023 BMW 3 Series advertised today. About 4 in 10 of 2023 BMW 3 Series cars are gone from sale within a month of being advertised: 293 of the 657 first advertised between 7 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £40,999. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 16 September 2027.

It has had 2 MOTs. The latest, on 17 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 20,591 miles, which matches the advertised 25,000 miles.

Advertised mileage is about 9,200 miles lower than the median mileage of a 2023 BMW 3 Series on AskCar.