2020 BMW 3 Series 3.0 M340i

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340i Touring Auto 4WD Euro 6 (s/s) 5dr (369 bhp)
• Year: 2020
• Mileage: 18,000 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 369 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 165 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series has covered 18,000 miles, around 41,700 fewer miles than is typical for its age. Priced at £33,000, it is advertised £5,374 below the AskCar estimate of £38,374. The AskCar estimate uses 6,862 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 160 days. You can find this car at D.E.M Motors in Wednesbury. 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

Good value: £5,374 (14%) under the AskCar estimate of £38,374.

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 2020 BMW 3 Series with the 3.0 petrol engine is typically advertised at £27,500: the median of the 63 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 160 days.

Price history

AskCar first saw this advert on 28 May 2026 at £33,000. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 41,700 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.