2018 BMW 3 Series 3.0 M Sport Shadow Edition

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport Shadow Edition
• Version: 3.0 M Sport Shadow Edition Auto 4WD Euro 6 (s/s) 5dr Touring
• Year: 2018
• Mileage: 70,997 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 165 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series M Sport Shadow Edition is advertised with 70,997 miles on the clock. Its asking price of £20,800 is £1,291 above the AskCar estimate of £19,509. The AskCar estimate uses UK dealer asking prices, including 6,862 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 26 days ago. Its asking price has since fallen by £700. We checked its advertised mileage against the government's MOT record, and they match. The seller is Sytner Select Swindon, based in Swindon. 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: £1,291 (6%) over the AskCar estimate of £19,509.

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

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

Price history

AskCar first saw this advert on 9 October 2026 at £21,500. Its asking price is now £20,800, £700 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 9 October 2026: £21,500
• 30 October 2026: £20,800

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 9 February 2027.

It has had 9 MOTs. The latest, on 13 October 2026, failed.

It failed on: nearside rear road wheel fractured; offside rear road wheel fractured; offside rear wheel bearing play so excessive that directional control is impaired.

Mileage at that test: 71,218 miles, which matches the advertised 70,997 miles.

Advertised mileage is about 1,600 miles lower than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

12 other 2018 BMW 3 Series M Sport Shadow Edition 3.0 diesel automatic estates are for sale at UK dealers, from £13,999 to £25,890, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series M Sport Shadow Edition, 3.0 diesel estate, blue. Mileage: 73,272 miles. Price: £21,495, £695 more than this car. Dealer: Stratstone BMW Tunbridge Wells in Royal Tunbridge Wells. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-7fe57e3c2259
• 2018 BMW 3 Series M Sport Shadow Edition, 3.0 diesel estate, grey. Mileage: 79,512 miles. Price: £18,491, £2,309 less than this car. Dealer: Your Next Car in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-3b303f3990e5
• 2018 BMW 3 Series M Sport Shadow Edition, 3.0 diesel estate, white. Mileage: 61,782 miles. Price: £21,450, £650 more than this car. Dealer: Baylis Hereford in Hereford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-edd46c7e3718

• The nearest: 2018 BMW 3 Series M Sport Shadow Edition, 3.0 diesel estate, white, 46 miles from this car. Mileage: 117,000 miles. Price: £14,995, £5,805 less than this car. Dealer: Motor Trend in Great Missenden. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-1d833cb3e290