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: 46,138 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 116 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport is advertised with 46,138 miles, approximately 26,500 below the typical mileage for its age. Its asking price of £14,500 is £1,432 below the AskCar estimate of £15,932. 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 first saw this car advertised 42 days ago. Its asking price has since fallen by £1,000. We checked its advertised mileage against the government's MOT record, and they match. The seller is 1Stop Car Sales, based in Spalding. 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: £1,432 (8%) under the AskCar estimate of £15,932.

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 42 days.

Price history

AskCar first saw this advert on 23 September 2026 at £15,500. Its asking price is now £14,500, £1,000 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 23 September 2026: £15,500
• 22 October 2026: £14,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 11 November 2026.

It has had 7 MOTs. The latest, on 12 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 43,806 miles, which matches the advertised 46,138 miles.

Advertised mileage is about 26,500 miles lower than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

43 other 2018 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £6,990 to £17,800, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, silver. Mileage: 46,194 miles. Price: £13,299, £1,201 less than this car. Dealer: Charles Hurst Usedirect Belfast 62 Boucher Road in Belfast. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-72bdd1159d0e
• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, silver. Mileage: 45,000 miles. Price: £15,495, £995 more than this car. Dealer: Worthway Motor Company in Keighley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-6c6b6bd921a2
• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 47,395 miles. Price: £16,495, £1,995 more than this car. Dealer: Motorology in Liverpool. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-0a32260ecd8f

• The nearest: 2018 BMW 3 Series M Sport, 2.0 diesel saloon, silver, 34 miles from this car. Mileage: 33,185 miles. Price: £17,199, £2,699 more than this car. Dealer: cinch in Lincoln. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-86bef619f62b