2018 BMW 3 Series 3.0 335d M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 3.0 335d M Sport Auto 4WD Euro 6 (s/s) 4dr (309 bhp)
• Year: 2018
• Mileage: 96,000 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 309 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 145 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport is advertised with 96,000 miles, approximately 23,400 above the typical mileage for its age. The AskCar estimate for this car is £13,470. It is priced at £13,495, which is £25 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,862 BMW 3 Series cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 138 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at BM Vehicles in Ware. 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

Fair price: £25 (under 1%) over the AskCar estimate of £13,470.

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 3.0 diesel engine is typically advertised at £18,000: the median of the 68 for sale on AskCar, as of 4 November 2026.

Time on sale

The dealer may accept less. This 2018 BMW 3 Series has been on sale for at least 138 days. About half of 2018 BMW 3 Series cars are gone from sale within a month of being advertised: 269 of the 532 first advertised between 10 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 19 June 2026 at £13,495. 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: valid until 5 May 2027.

It has had 7 MOTs. The latest, on 5 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 95,349 miles, which matches the advertised 96,000 miles.

Advertised mileage is about 23,400 miles higher than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

10 other 2018 BMW 3 Series M Sport 3.0 diesel automatic saloons are for sale at UK dealers, from £10,790 to £23,840, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport, 3.0 diesel saloon, blue. Mileage: 116,000 miles. Price: £10,790, £2,705 less than this car. Dealer: Fish Motors in Bolton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-ea3a6d519928
• 2018 BMW 3 Series M Sport, 3.0 diesel saloon, orange. Mileage: 117,030 miles. Price: £11,999, £1,496 less than this car. Dealer: AL Prestige Cars in Southampton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-829675612ce9
• 2018 BMW 3 Series M Sport, 3.0 diesel saloon, blue. Mileage: 73,967 miles. Price: £15,395, £1,900 more than this car. Dealer: Cargem in Rainham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-e395b9874235

• The nearest: 2018 BMW 3 Series M Sport, 3.0 diesel saloon, black, 20 miles from this car. Mileage: 62,500 miles. Price: £16,250, £2,755 more than this car. Dealer: Dash Autos in Harrow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-d848c38615ba