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: 44,541 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 44,541 miles, approximately 19,900 below the typical mileage for its age. The AskCar estimate for this car is £21,448. It is priced at £20,795, which is £653 below that estimate. The AskCar estimate uses UK dealer asking prices, including 2,992 BMW X3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 65 days ago, and its asking price has since fallen by £600. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Tenby Car Supermarket, based in Luton. 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: £653 (3%) under the AskCar estimate of £21,448.

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 65 days.

Price history

AskCar first saw this advert on 29 August 2026 at £21,395. Its asking price is now £20,795, £600 less. The latest price cut was seen on 7 October 2026.

Price changes recorded:

• 29 August 2026: £21,395
• 7 October 2026: £20,795

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 21 February 2027.

It has had 7 MOTs. The latest, on 3 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 44,407 miles, which matches the advertised 44,541 miles.

Advertised mileage is about 19,900 miles lower 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, black. Mileage: 44,600 miles. Price: £19,155, £1,640 less than this car. Dealer: Hitchfields in Huddersfield. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-f5099e119219
• 2018 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 45,000 miles. Price: £22,395, £1,600 more than this car. Dealer: Peverel Car Company in Wickham Bishops. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-24b531e85016
• 2018 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 42,746 miles. Price: £20,990, £195 more than this car. Dealer: All Electric BYD Stourbridge in Stourbridge. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-daae42dcf2d9

• The nearest: 2018 BMW X3 M Sport, 2.0 diesel SUV, white, under a mile from this car. Mileage: 61,158 miles. Price: £19,495, £1,300 less than this car. Dealer: Tenby Car Supermarket in Luton. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-40b1c567c12c