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: 120,000 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 has covered 120,000 miles. The dealer is asking £11,895, which is £2,563 above the AskCar estimate of £9,332. To work out the AskCar estimate, we analyse UK dealer adverts for 6,862 BMW 3 Series cars across different ages and specifications. This car was first seen in our listings data 91 days ago. Ask the dealer why the advert shows fewer miles than the 124,937 recorded at the latest MOT. The latest recorded MOT expiry date is 17 August 2026, which has passed. Confirm its status with the dealer. The seller is Paul Blaney Motors, based in Newtownards. 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

Above the going rate: £2,563 (27%) over the AskCar estimate of £9,332.

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 91 days.

Price history

AskCar first saw this advert on 5 August 2026 at £11,895. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 17 August 2026; ask the dealer for the current MOT.

It has had 4 MOTs. The latest, on 18 August 2025, passed.

Advisories at the latest test: front brake pad(s) wearing thin.

Mileage at that test: 124,937 miles. The advert says 120,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 47,400 miles higher 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, grey. Mileage: 114,782 miles. Price: £9,995, £1,900 less than this car. Dealer: German Motor Store in Chesterfield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-ae4879b3db41
• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 110,950 miles. Price: £9,890, £2,005 less than this car. Dealer: Motor Gurus in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-001f834d9412
• 2018 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 129,539 miles. Price: £8,495, £3,400 less than this car. Dealer: Rallysport Automotive in Colchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-603eed1c688f

• The nearest: 2018 BMW 3 Series M Sport, 2.0 diesel saloon, silver, 6 miles from this car. Mileage: 46,194 miles. Price: £13,299, £1,404 more 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