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: 58,266 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 58,266 miles on the clock, this 2018 BMW X3 M Sport has done roughly 6,200 fewer miles than a typical 2018 BMW X3. The dealer is asking £21,250, which is £1,306 above the AskCar estimate of £19,944. To work out the AskCar estimate, we analyse UK dealer adverts for 2,992 BMW X3 cars across different ages and specifications. We have tracked this advert for 10 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Grange Road Motors in Cookstown. 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: £1,306 (6%) over the AskCar estimate of £19,944.

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 10 days.

Price history

AskCar first saw this advert on 23 October 2026 at £21,250. 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 11 December 2026.

It failed its MOT on 24 November 2025 (offside rear tyre has a cut in excess of the requirements deep enough to reach the ply or cords) and passed 1 day later, on 25 November 2025.

There were no advisories at the latest test.

Mileage at that test: 52,975 miles, which matches the advertised 58,266 miles.

Advertised mileage is about 6,200 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: 58,200 miles. Price: £19,990, £1,260 less than this car. Dealer: Stratstone BMW Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-40549d4d0f93
• 2018 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 58,553 miles. Price: £20,991, £259 less than this car. Dealer: Your Next Car in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-9c837096e260
• 2018 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 59,000 miles. Price: £18,495, £2,755 less than this car. Dealer: Greenhous Shrewsbury in Shrewsbury. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-04ecf3e94bd0

• The nearest: 2018 BMW X3 M Sport, 2.0 diesel SUV, black, under a mile from this car. Mileage: 74,731 miles. Price: £20,550, £700 less than this car. Dealer: Grange Road Motors in Cookstown. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-1b25c21524c9