2018 BMW 3 Series 2.0 320d M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 320d M Sport Auto 4WD Euro 6 (s/s) 5dr Touring (187 bhp)
• Year: 2018
• Mileage: 78,819 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport is advertised with 78,819 miles, approximately 6,200 above the typical mileage for its age. The AskCar estimate for this car is £13,153. It is priced at £9,995, which is £3,158 below that estimate. The AskCar estimate uses 6,862 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 52 days ago, the asking price has dropped by £1,000. It is advertised by Sigma Car Sales in Birmingham. 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: £3,158 (24%) under the AskCar estimate of £13,153.

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 2018 BMW 3 Series with the 2.0 diesel engine is typically advertised at £12,500: the median of the 286 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 BMW 3 Series has been on sale for at least 52 days.

Price history

AskCar first saw this advert on 13 September 2026 at £10,995. Its asking price is now £9,995, £1,000 less. The latest price cut was seen on 18 October 2026.

Price changes recorded:

• 13 September 2026: £10,995
• 30 September 2026: £10,495
• 18 October 2026: £9,995

Mileage and MOT

Advertised mileage is about 6,200 miles higher than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

15 other 2018 BMW 3 Series M Sport 2.0 diesel automatic estates are for sale at UK dealers, from £7,799 to £16,590, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 77,989 miles. Price: £12,990, £2,995 more than this car. Dealer: Ebony & Ivory Motors in Scunthorpe. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-031704a56207
• 2018 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 77,400 miles. Price: £13,250, £3,255 more than this car. Dealer: Simon Shield Cars in Ipswich. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-2e18ab7f4cde
• 2018 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 76,247 miles. Price: £13,995, £4,000 more than this car. Dealer: Botley Car Centre in Southampton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-349671104394

• The nearest: 2018 BMW 3 Series M Sport, 2.0 diesel estate, blue, 5 miles from this car. Mileage: 90,000 miles. Price: £8,990, £1,005 less than this car. Dealer: JAD Motor in Birmingham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-49a7953d5e27