2018 BMW 3 Series 3.0 340i M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 3.0 340i M Sport Auto RWD Euro 6 (s/s) 4dr (322 bhp)
• Year: 2018
• Mileage: 107,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 322 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 159 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport is advertised with 107,000 miles, approximately 34,800 above the typical mileage for its age. The AskCar estimate for this car is £14,646. It is priced at £14,990, which is £344 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,822 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 36 days ago. Its asking price has since fallen by £500. The government's MOT record matches its advertised mileage. You can find this car at German Motors in Leeds. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £344 (2%) over the AskCar estimate of £14,646.

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 6,822 priced BMW 3 Series adverts across different ages and specifications, as of 8 November 2026.

A 2018 BMW 3 Series with the 3.0 petrol engine is typically advertised at £17,900: the median of the 68 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2018 BMW 3 Series has been on sale for at least 36 days.

Price history

AskCar first saw this advert on 3 October 2026 at £15,490. Its asking price is now £14,990, £500 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 3 October 2026: £15,490
• 3 November 2026: £15,250
• 6 November 2026: £14,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 2 August 2027.

It failed its MOT on 31 July 2026 (front windscreen damaged but not adversely affecting driver's view stone chip in windscreen; nearside rear tyre tread depth below requirements of 1.6mm) and passed later the same day.

Advisories at the latest test: front windscreen damaged but not adversely affecting driver's view stone chip in windscreen.

Mileage at that test: 107,162 miles, which matches the advertised 107,000 miles.

Advertised mileage is about 34,800 miles higher than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

3 other 2018 BMW 3 Series M Sport 3.0 petrol automatic saloons are for sale at UK dealers, from £19,490 to £28,990, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport, 3.0 petrol saloon, white. Mileage: 69,357 miles. Price: £19,490, £4,500 more than this car. Dealer: Octane Car Sales in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-558f6831f2d8
• 2018 BMW 3 Series M Sport, 3.0 petrol saloon, grey. Mileage: 44,800 miles. Price: £24,490, £9,500 more than this car. Dealer: BSB Automotive in Dartford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-5f0518119128
• 2018 BMW 3 Series M Sport, 3.0 petrol saloon, grey. Mileage: 26,000 miles. Price: £28,990, £14,000 more than this car. Dealer: Cheshire Performance in Audenshaw. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-3f70a8bac698