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 RWD Euro 6 (s/s) 4dr (187 bhp)
• Year: 2018
• Mileage: 78,583 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 116 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport is advertised with 78,583 miles, approximately 6,400 above the typical mileage for its age. Priced at £12,101, it is advertised £529 below the AskCar estimate of £12,630. The AskCar estimate draws on 6,902 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 37 days ago. Its asking price has since fallen by £634. The government's MOT record matches its advertised mileage. It is for sale at Cargem in Rainham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £529 (4%) under the AskCar estimate of £12,630.

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 6,902 priced BMW 3 Series adverts across different ages and specifications, as of 6 November 2026.

A 2018 BMW 3 Series with the 2.0 diesel engine is typically advertised at £12,500: the median of the 287 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2018 BMW 3 Series has been on sale for at least 37 days.

Price history

AskCar first saw this advert on 30 September 2026 at £12,735. Its asking price is now £12,101, £634 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 30 September 2026: £12,735
• 6 October 2026: £12,259
• 28 October 2026: £12,101

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 14 November 2026.

It has had 5 MOTs. The latest, on 6 November 2025, passed.

Advisories at the latest test: front inner brake pad(s) wearing thin; central windscreen damaged but not adversely affecting driver's view.

Mileage at that test: 76,866 miles, which matches the advertised 78,583 miles.

Advertised mileage is about 6,400 miles higher than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

42 other 2018 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £6,990 to £17,500, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, silver. Mileage: 76,505 miles. Price: £12,500, £399 more than this car. Dealer: GB Autocare in Selby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-6f5f1570fc6f
• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 76,000 miles. Price: £13,000, £899 more than this car. Dealer: CSW Automotive in Stafford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-6d7d6f81bff8
• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 82,000 miles. Price: £11,990, £111 less than this car. Dealer: Auto Venue in Newport. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-08c79dcd8f53

• The nearest: 2018 BMW 3 Series M Sport, 2.0 diesel saloon, black, under a mile from this car. Mileage: 58,746 miles. Price: £14,235, £2,134 more than this car. Dealer: Cargem in Rainham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-e5d45fbe3f3c