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) 4dr (187 bhp)
• Year: 2018
• Mileage: 69,000 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport is advertised with 69,000 miles on the clock. The AskCar estimate for this car is £14,030. It is priced at £13,890, which is £140 below that estimate. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 161 days ago. Its asking price has since fallen by £1,600. The last MOT shows 69,565 miles, more than the advert. This is worth checking with the dealer. Its recorded MOT is valid until 3 June 2027. The seller is Www.Countrycarsales.Co.Uk, based in Welwyn Garden City. 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: £140 (1%) under the AskCar estimate of £14,030.

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

This 2018 BMW 3 Series has been on sale for at least 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £15,490. Its asking price is now £13,890, £1,600 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 29 May 2026: £15,490
• 13 August 2026: £14,990
• 26 August 2026: £14,890
• 15 September 2026: £14,690
• 26 September 2026: £14,490
• 21 October 2026: £13,990
• 27 October 2026: £13,890

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 3 June 2027.

It has had 6 MOTs. The latest, on 4 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 69,565 miles. The advert says 69,000 miles, fewer than the MOT record, so ask the dealer which is right.

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

Similar cars

44 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 5 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 68,195 miles. Price: £13,999, £109 more than this car. Dealer: Empressive Motor Company in Merthyr Tydfil. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-3d9f3c487946
• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 72,000 miles. Price: £12,490, £1,400 less than this car. Dealer: Bedford Car Centres in Bedford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-cb38ee2b184e
• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 65,412 miles. Price: £15,499, £1,609 more than this car. Dealer: Halliwell Jones Wilmslow BMW in Wilmslow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-69207d78f659

• The nearest: 2018 BMW 3 Series M Sport, 2.0 diesel saloon, grey, 14 miles from this car. Mileage: 83,407 miles. Price: £11,500, £2,390 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-a87a5a6c200b