2018 BMW X3 2.0 20d M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 20d M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2018
• Mileage: 98,668 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 M Sport is advertised with 98,668 miles, approximately 34,200 above the typical mileage for its age. Priced at £15,490, it is advertised £451 above the AskCar estimate of £15,039. The AskCar estimate uses 2,992 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 17 days ago. The government's MOT record matches its advertised mileage. It is for sale at Xenon Automotive in Welwyn Garden City. 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: £451 (3%) over the AskCar estimate of £15,039.

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 2,992 priced BMW X3 adverts across different ages and specifications, as of 2 November 2026.

A 2018 BMW X3 with the 2.0 diesel engine is typically advertised at £18,500: the median of the 151 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW X3 has been on sale for at least 17 days.

Price history

AskCar first saw this advert on 16 October 2026 at £15,490. 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 10 December 2026.

It has had 7 MOTs. The latest, on 11 November 2025, passed.

Advisories at the latest test: offside rear nail in tyre inside sidewall 245/50R19; nearside rear child seat fitted not allowing full inspection of adult belt.

Mileage at that test: 95,212 miles, which matches the advertised 98,668 miles.

Advertised mileage is about 34,200 miles higher than the median mileage of a 2018 BMW X3 on AskCar.

Similar cars

78 other 2018 BMW X3 M Sport 2.0 diesel automatic SUVs are for sale at UK dealers, from £13,250 to £23,289, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 97,114 miles. Price: £15,298, £192 less than this car. Dealer: Your Car Supermarket in Birmingham. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-97659cc1077a
• 2018 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 96,759 miles. Price: £18,750, £3,260 more than this car. Dealer: Sytner Nottingham BMW in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-79f69a973caa
• 2018 BMW X3 M Sport, 2.0 diesel SUV, blue. Mileage: 101,000 miles. Price: £16,990, £1,500 more than this car. Dealer: Car Shop 365 in Bradford. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-b000c711bf14

• The nearest: 2018 BMW X3 M Sport, 2.0 diesel SUV, white, 13 miles from this car. Mileage: 35,110 miles. Price: £20,250, £4,760 more than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-56f153fef7db