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: 42,000 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 42,000 miles, around 30,900 fewer miles than is typical for its age. The dealer is asking £16,590, which is £13 above the AskCar estimate of £16,577. To work out the AskCar estimate, we analyse UK dealer adverts for 6,742 BMW 3 Series cars across different ages and specifications. We have tracked this advert for 26 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Britannia Motor Co, based in Newport. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £13 (under 1%) over the AskCar estimate of £16,577.

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 6,742 priced BMW 3 Series adverts across different ages and specifications, as of 2 November 2026.

A 2018 BMW 3 Series with the 2.0 diesel engine is typically advertised at £12,500: the median of the 284 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW 3 Series has been on sale for at least 26 days.

Price history

AskCar first saw this advert on 7 October 2026 at £16,590. 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 2 November 2026: valid until 27 March 2027.

It has had 7 MOTs. The latest, on 6 March 2026, passed.

Advisories at the latest test: oil leak, but not excessive rear axle/diff area.

Mileage at that test: 39,715 miles, which matches the advertised 42,000 miles.

Advertised mileage is about 30,900 miles lower than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

16 other 2018 BMW 3 Series M Sport 2.0 diesel automatic estates are for sale at UK dealers, from £7,799 to £15,940, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 51,511 miles. Price: £15,940, £650 less than this car. Dealer: Hilton Garage in Derby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-7f6e1b6ba7b8
• 2018 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 69,750 miles. Price: £14,995, £1,595 less than this car. Dealer: Mount Vernon Motors in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-87e225c6c554
• 2018 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 76,247 miles. Price: £13,995, £2,595 less than this car. Dealer: Botley Car Centre in Southampton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-349671104394

• The nearest: 2018 BMW 3 Series M Sport, 2.0 diesel estate, grey, 5 miles from this car. Mileage: 87,000 miles. Price: £12,790, £3,800 less than this car. Dealer: Auto Venue in Newport. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-906e2d2157c6