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) 5dr Touring (187 bhp)
• Year: 2018
• Mileage: 140,958 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 119 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport has covered 140,958 miles, around 68,800 more miles than is typical for its age. The AskCar estimate for this car is £8,174. It is priced at £7,799, which is £375 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 83 days, and its asking price is down £695. The government's MOT record matches its advertised mileage. You can find this car at Alisons Automotive Group in Berkeley. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £375 (4%) under the AskCar estimate of £8,174.

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 6,897 priced BMW 3 Series adverts across different ages and specifications, as of 5 November 2026.

A 2018 BMW 3 Series with the 2.0 diesel engine is typically advertised at £12,500: the median of the 292 for sale on AskCar, as of 5 November 2026.

Time on sale

The dealer may accept less. This 2018 BMW 3 Series has been on sale for at least 83 days, and its asking price has been cut by £695. About half of 2018 BMW 3 Series cars are gone from sale within a month of being advertised: 273 of the 537 first advertised between 10 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 14 August 2026 at £8,494. Its asking price is now £7,799, £695 less. The latest price cut was seen on 30 September 2026.

Price changes recorded:

• 14 August 2026: £8,494
• 30 September 2026: £7,799

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 1 May 2027.

It failed its MOT on 1 May 2026 (front windscreen washer provides insufficient washer liquid) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 140,955 miles, which matches the advertised 140,958 miles.

Advertised mileage is about 68,800 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 £8,990 to £16,590, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport, 2.0 diesel estate, blue. Mileage: 128,000 miles. Price: £8,995, £1,196 more than this car. Dealer: BRM Car Sales Scunthorpe in Scunthorpe. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-adcca0b5a1ab
• 2018 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 114,739 miles. Price: £9,495, £1,696 more than this car. Dealer: H & M Cars Barnsley in Barnsley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-f72c1105d9de
• 2018 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 109,000 miles. Price: £10,499, £2,700 more than this car. Dealer: Motordrive in Derby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-548208cdbeae

• The nearest: 2018 BMW 3 Series M Sport, 2.0 diesel estate, white, 20 miles from this car. Mileage: 42,000 miles. Price: £16,590, £8,791 more than this car. Dealer: Britannia Motor Co in Newport. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-85e12a400a0d